Infragistics4.Undo.v12.2 Used to indicate the type of operation that represents. The item represents an undo operation. The item represents a redo operation. Enumeration used to identify the cause of the The execute is being performed because an Undo was requested. The execute is being performed because a Redo was requested The execute is being performed because an was being rolled back. Enumeration used to indicate what should happen to the when it is closed. The group is being committed/completed. The group is being cancelled and the object should be undone and removed. The group is being cancelled and the object should be released. Used to identify the result of a call to The information from the specified unit could not be merged and should be added to the undo stack. The information from the specified unit was merged in and doesn't need to be added to the undo stack. The information from the specified unit was merged and the original unit should be removed from the undo stack. Initializes a new The maximum number of items to store Clears the stack Returns an enumerator for the stack Returns the specified item that is number of items from the top of the stack. The number of items offset from the top of the stack from which the item should be obtained An item offset by the specified amount from the top of the stack Returns the most recent item added to the stack without removing it. Returns the last item added to the stack The 'Count' must be 1 or greater. Removes the most recent item from the stack and returns it. The most recent item on the stack. Adds a new item to the top of the stack. The item to add to the stack Returns the number of items in the stack. Returns or sets the maximum number of items that may be stored in the stack. Invoked after the collection has been changed Invoked when a child is about to be opened. The child group being opened Returns true if the group can be opened. Invoked when the child is being closed. The child group being closed Indicates the type of close action occurring. Returns the associated Used to provide information to the while the method is being invoked. Initializes a new The UndoManager for which the is being executed. Indicates what triggered the execute. Returns an undo unit in the current execution stack. The offset into the undo units being executed. 0 returns the UndoUnit currently being executed and - 1 would return the outermost unit being executed. Used to execute an UndoUnit with this instance as the context. The unit to be executed. Returns an enumeration used to indicate the type of operation being performed. Returns an enumeration indicating what triggered the Returns the depth of the current UndoUnit being executed. This will typically return 1 unless there are transactions being executed. Returns the for which the is being executed. Represents an item in the undo or redo history. Abstract base class for objects that implement INotifyPropertyChanged Initializes a new instance of the class Virtual method called when the first listener is being added to the event. Note: the default inpmplementation does nothing. This method is intended for use by derived classes that may want to be notified when the # of listeners to the event transitions from 0 to 1. Virtual method called when the HasListeners property changes. Note: the default inpmplementation does nothing. This method is intended for use by derived classes that may want to be notified when the # of listeners to the event transitions from 0 to 1 or 1 to 0; Used to raise the event for the specified property name. The name of the property that has changed. Raises the PropertyChanged event The name of the property Gets whether there are any listeners for the event True is there are listeners to the event, otherwise false. Raised when a property has changed Executes all the items in the associated history up to and including this instance. Returns an enumeration indicating the type of operation that will be performed. Returns a more detailed representation of the item. Returns a basic string representation of the item. Returns the associated Returns the action that will be invoked. Class used to manage an undo/redo history.

The UndoManager manages the undo and redo history. Operations are added to the undo/redo history by adding instances to it using one of the available methods. One can create an instance of a custom UndoUnit derived class or one of the classes included in this assembly and use the method. The UndoManager also exposes a number of helper methods that will create an UndoUnit and add it to the history. The AddPropertyChange overloads can be used to record the change of a property of some object. The AddCollectionChange overloads can be used to record a change to an collection implementing ICollection>T<. The remaining AddChange overloads may be used to provide a set of delegates representing the Undo and Redo actions that should be taken when the manager is performing an undo or redo operation. These methods using the so if you want to change the UndoUnit type that is created by these methods you may derive a class from and set the property to an instance of that class.

The and are read-only collections of instances. UndoHistoryItem exposes the root that represents the operation to be performed as well as short and long descriptions of the operation. These collections implement INotifyCollectionChanged and therefore can be used in your UI as the source for menu, etc. that would display the history to the end user.

The and methods are used to perform an undo or redo operation. When these methods are invoked a is removed from the associated history (e.g. UndoHistory) and then the method of the is invoked. It is important to realize that by default UndoUnits are not automatically moved to the opposite history. For example, while undoing a property change it is expected that the property change will result in a new call to the AddPropertyChange overload. That would create a new undo unit representing that change and add it to the UndoManager's history. In that case, since the UndoManager was in the process of performing an undo, the new UndoUnit would be added to the redo history.

The UndoManager exposes a number of read-only boolean properties which indicate the current state of the object. The and are true while performing an undo or redo respectively. The and properties indicate if there are any items in the undo/redo history.

When performing discrete initialization, one can use the method to temporarily disable logging of the UndoUnits in the history. Any calls to AddChange are ignored until the method is invoked. The Resume method must be invoked once for each time that the Suspend method is invoked. The property will return true between the calls to Suspend and Resume.

The UndoManager provides support for merging of a new UndoUnit with the most recent UndoUnit that was stored. This is useful in cases where the same action is occuring multiple times. For example while dragging the thumb of a Slider and therefore the property that is bound to the Slider's Value. Merging may be disabled indefinitely by setting the to false. One can also suppress the merging of the current item by invoking the method.

When multiple operations should be treated as a single undoable action, one can use transactions. The UndoManager provides support for transactions using the method. This returns a instance. Any subsequent units that are added to the UndoManager are stored within that transaction until the transaction has been committed (see ) or rolled back (see . Nested transactions are supported so calling StartTransaction while a transaction is progress will add that to the of the . One can get access to the current open transaction, if there is one, using the property. Also, if there is a block of code that you want to execute within a transaction, you may use the method. This method will take care of calling the Rollback method of the transaction it creates if an exception occurs (without preventing the exception from bubbling up). Otherwise it will invoke the Commit of the transaction. When the has been committed it is then added to the undo or redo history depending on the current state of the UndoManager.

 Initializes a new Adds an to the history. The unit to add to the history. The 'unit' cannot be null.

This overload takes the provided and adds it to either the undo or redo history stack based on the current state of the UndoManager. For example while executing an Undo (i.e. is true), change units will be added to the redo stack.

Note: An undo unit is not automatically moved from the undo stack to the redo stack or vice versa. It is expected that either the change that the UndoUnit makes (e.g. a property change) will result in a new change being added to the UndoManager or that the unit itself will add a unit (even itself) to the UndoManager. The is one such example of the latter. The UndoUnit created by that overload will add itself back into the UndoManager if the associated undo or redo delegate is successful.

 Adds an to the history. The general description for the transaction. The detailed description for the transaction. The method to invoke when an Undo is being performed The method to invoke when an Redo is being performed An optional parameter that represents the object that will be affected by the operation.

This overload creates an undo unit that will execute the when an Undo operation is being performed and will execute the when a Redo operation is being performed. If the operation is successful (i.e. the method returns true) the UndoUnit will add itself back into the history.

Note: Since an explicit description is passed in, the string should be applicable to both undo and redo operations. For example one might use "Bold" or "Toggle Bold" instead of "Enable Bold"/"Disable Bold" since the latter might not be correct if the change is being created for the redo stack. If you do want to use a string specific to the context then you might decide which description to provide by evaluating the property.

 The 'undoMethod' and 'redoMethod' parameters cannot be null. Adds an to the history. The general description for the transaction. The detailed description for the transaction. The method to invoke when an Undo is being performed The method to invoke when an Redo is being performed An optional parameter that represents the object that will be affected by the operation.

This overload creates an undo unit that will execute the when an Undo operation is being performed and will execute the when a Redo operation is being performed. If the operation is successful (i.e. the method returns true) the UndoUnit will add itself back into the history.

Note: Since an explicit description is passed in, the string should be applicable to both undo and redo operatoins. For example one might use "Bold" or "Toggle Bold" instead of "Enable Bold"/"Disable Bold" since the latter might not be correct if the change is being created for the redo stack. If you do want to use a string specific to the context then you might decide which description to provide by evaluating the property.

 The 'undoMethod' and 'redoMethod' parameters cannot be null. Adds an to the history. The general description for the transaction. The detailed description for the transaction. The method to invoke when an Undo is being performed The method to invoke when an Redo is being performed An optional parameter that represents the object that will be affected by the operation.

This overload creates an undo unit that will execute the when an Undo operation is being performed and will execute the when a Redo operation is being performed.

Note: Since an explicit description is passed in, the string should be applicable to both undo and redo operatoins. For example one might use "Bold" or "Toggle Bold" instead of "Enable Bold"/"Disable Bold" since the latter might not be correct if the change is being created for the redo stack. If you do want to use a string specific to the context then you might decide which description to provide by evaluating the property.

 The 'undoMethod' and 'redoMethod' parameters cannot be null. Adds an for the specified collection change to the undo history. The type of the item The collection that was modified An object that describes the changes made to the collection A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. Returns the UndoUnit that was added or null if one was not added Adds an for the specified add/remove collection change to the undo history. The type of the item The collection that was modified Either 'Add' or 'Remove' to indicate the type of operation that occurred The item that was added or removed The index of the new item for an Add operation or the index where the item existed for a Remove operation. A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. Returns the UndoUnit that was added or null if one was not added Adds an for the specified add/remove collection change to the undo history. The type of the item The collection that was modified Either 'Add' or 'Remove' to indicate the type of operation that occurred The items that were added or removed The index of the new item for an Add operation or the index where the item existed for a Remove operation. A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. Returns the UndoUnit that was added or null if one was not added Adds an to the undo history for a collection change that replaces the contents of the collection. The type of the item The collection that was modified The items to restore when the operation is undone A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. Returns the UndoUnit that was added or null if one was not added Adds an for the specified replace collection change to the undo history. The type of the item The collection that was modified The item that was replaced The item that was the replacement for The index of the item that was replaced. A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. Returns the UndoUnit that was added or null if one was not added Adds an for the specified replace collection change to the undo history. The type of the item The collection that was modified The item that was moved. The previous index of the item. The new index of the item. A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. Returns the UndoUnit that was added or null if one was not added Adds an for the specified property value change to the undo history. The type of class whose value was changed The type of the property that was changed The instance whose property was changed An expression for the property of the that was changed The old value of the property that should be restored when the action is undone. The new value of the property Used to determine if the property change should be prevented from being merged with the top entry on the undo stack when merging is allowed. The name of the property as it should be displayed to the end user. If this is not specified the actual name of the property will be used. The name of the object whose property is being changed as it should be displayed to the end user. Returns the UndoUnit that was added or null if one was not added Adds an for the specified property value change to the undo history. The type of class whose value was changed The type of the property that was changed The instance whose property was changed An expression for the property that was changed The old value of the property that should be restored when the action is undone. The new value of the property Used to determine if the property change should be prevented from being merged with the top entry on the undo stack when merging is allowed. The name of the property as it should be displayed to the end user. If this is not specified the actual name of the property will be used. The name of the object whose property is being changed as it should be displayed to the end user. Returns the UndoUnit that was added or null if one was not added Adds an for the specified property value change to the undo history. The type of class whose value was changed The type of the property that was changed The instance whose property was changed The string name of the public property that was changed. This is used to find the PropertyInfo for the property to be affected when the operation is undone. The old value of the property that should be restored when the action is undone. The new value of the property Used to determine if the property change should be prevented from being merged with the top entry on the undo stack when merging is allowed. The name of the property as it should be displayed to the end user. If this is not specified the actual name of the property will be used. The name of the object whose property is being changed as it should be displayed to the end user. Returns the UndoUnit that was added or null if one was not added Clears the undo and redo history.

Note: This method does not affect the current open if there is one. If you want to stop that transaction you would invoke its or method.

 Executes the specified action within an The description for the transaction. The detailed description for the transaction. The action to be invoked within the transaction Performs the specified action on each within the undo and redo history. The action to invoke for each item.

The ForEach method will invoke the specified action on all items in the , as well as if there is one currently open.

 Used to obtain the UndoManager instance that has been registered with a given object. The object that was registered with a given UndoManager using the method. The that was registered with the specified reference. Used to ensure that the next that is recorded is not allowed to merge with the last operation on the . Performs one or more redo operations from the current history. The number of operations in the redo history to execute The must be 1 or greater Used to associate an object with a given

Registering an object with an UndoManager allows a reference to the object to be passed to static methods that are used to obtain the UndoManager with which an undo operation should be registered. This allows an object to not have to store a reference to the UndoManager directly.

 The object with which to associate this UndoManager instance Removes all the matching instances from the and collections. The delegate to invoke with each to determine if it should be removed. Indicates whether the method should affect the current open if there is one. Resumes the recording of instances in the history.

The method is meant to be used to temporarily prevent recording of undo operations. This can be helpful when initializing objects/collections before they will be manipulated by the end user. The Resume method must be called to remove the suspension and must be called an equal number of times that the Suspend method is invoked.

While suspended, calls to will be ignored. Also any calls to or will result in an exception.

 Used to start a new transaction that will group one or more actions. The general description for the transaction. The detailed description for the transaction. The transaction that was created.

A transaction is used to group one or more instances into a single item in the undo/redo history. The StartTranaction method is used to start a new transaction. If no transactions have been started or all tranasactions are closed, this will create a new root level transaction that is exposed via the . If a transaction has already been started, and therefore RootTransaction returns non-null, the new transaction will be a nested transaction of the leaf open transaction within that . The method returns the newly started transaction.

Note: The and methods cannot be invoked while a transaction is open but one can create transactions while performing an undo/redo operation to gather the operations into a single unit.

 Suspends the recording of instances in the history.

The Suspend method is meant to be used to temporarily prevent recording of undo operations. This can be helpful when initializing objects/collections before they will be manipulated by the end user. The method must be called to remove the suspension and must be called an equal number of times that the Suspend method is invoked.

While suspended, calls to will be ignored. Also any calls to or will result in an exception.

 Used to remove an registration for an object that was registered with this UndoManager instance via the method. The object with that was previously registered with this UndoManager instance Performs one or more undo operations from the current history. The number of operations in the undo history to execute The must be 1 or greater Returns or sets a boolean indicating if the method may be used to merge changes.

Note: The method is only invoked when 2 or more new UndoUnits are added to the history. If an Undo or Redo operation is performed, the method will not be invoked until after the next non-undo/redo operation is performed.

 Returns a boolean indicating if there is an operation that can be redone. Returns a boolean indicating if there is an operation that can be undone. Returns a thread static singleton instance of an UndoManager. Returns the from the or that is currently being executed or null if no undo/redo is in progress. Returns the current open leaf Returns a boolean indicating if the manager is performing a redo operation. Returns a boolean indicating if the is performing a Rollback of a Returns a boolean indicating if the manager is performing an undo operation. Returns a boolean indicating if the recording of instances in the history has been suspended using the method. Returns the amount of time since the last operation that a will be allowed. Returns a read-only collection of the items in the redo history. Returns the outermost current open transaction or null if there is currently no transaction open. Returns the next item on the top of the

This property returns the at the top of the stack and is therefore equivalent to accessing RedoHistory[0]. The primary use case for this property is for binding such as when displaying the for the tooltip of an Redo button in the UI to avoid the exception information in the output window.

 Returns the next item on the top of the

This property returns the at the top of the stack and is therefore equivalent to accessing UndoHistory[0]. The primary use case for this property is for binding such as when displaying the for the tooltip of an Undo button in the UI to avoid the exception information in the output window.

 Returns or sets the maximum number of items to maintain within the undo/redo history. Returns a read-only collection of the items in the undo history. Returns or sets an object that is used to create the default instances for this Read-Only property that returns the that the UndoManager uses to create the UndoUnit units. Used to provide information about a potential merge operation to the method. Initializes a new The UndoManager for which the unit is being added The unit being added Returns the for which the UndoUnit is being added. Returns the that is being added. Custom for undoing changes to an . The type of item in the collection Base class for an undo/redo operation. Used to perform the associated action. Provides information about the undo/redo operation being executed. Returns true if some action was taken. Otherwise false is returned. In either case the object was removed from the undo stack. Used to invoke an action on the descendants. The action to invoke on descendants Returns a string representation of the action based on whether this is for an undo or redo operation. The type of history for which the description is being requested. A boolean indicating if a detailed description should be returned. For example, when false one may return "Typing" but for verbose one may return "Typing 'qwerty'". Used to allow multiple consecutive undo units to be merged into a single operation. Provides information about the unit to evaluate for a merge operation Returns an enumeration used to provide identify how the unit was merged. Used to remove any matching descendants and indicate if the unit should be removed. The routine to evaluate any descendant units. This should not be executed against the UndoUnit whose RemoveAll is being called. Returns true if the item should be removed; otherwise returns false. Returns the target object that will be affected by the Initializes a new based upon the specified The collection that was modified An object that describes the changes made to the collection A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. The and must not be null. The cannot be ReadOnly. The cannot be 'Reset'. Initializes a new for an add or remove of a specific item. The collection that was modified Must be either 'Add' or 'Remove' to indicate if the item was added or removed. The item that was added or removed. The index at which the item was inserted for an Add or the old index of the item for a Remove . A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. The must not be null. The cannot be ReadOnly. The must be 'Add' or 'Remove'. Initializes a new for an add or remove of multiple items. The collection that was modified Must be either 'Add' or 'Remove' to indicate if the item was added or removed. The items that were added or removed. The index at which the items were inserted for an Add or the old index of the item for a Remove . A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. The must not be null. The cannot be ReadOnly. The must be 'Add' or 'Remove'. Initializes a new for a reset of the specified collection. The collection that was modified The old items previously in the collection. A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. The must not be null. The cannot be ReadOnly. Initializes a new for a replacement of a specific item. The collection that was modified The item that was removed/replaced. The item that was added as a replacement for . The index of the item that was replaced which is also the index of the replacement. A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. The must not be null. The cannot be ReadOnly. Initializes a new for a move of a specific item. The collection that was modified The item that was moved. The previous index of the item. The new index of the item. A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. The must not be null. The cannot be ReadOnly. Used to perform the associated action. Provides information about the undo/redo operation being executed. Returns true if some action was taken. Otherwise false is returned. In either case the object was removed from the undo stack. Returns a string representation of the action based on whether this is for an undo or redo operation. The type of history for which the description is being requested. A boolean indicating if a detailed description should be returned. For example, when false one may return "Typing" but for verbose one may return "Typing 'qwerty'". Used to allow multiple consecutive undo units to be merged into a single operation. Provides information about the unit to evaluate for a merge operation Returns an enumeration used to provide identify how the unit was merged. Returns the target Returns the associated collection that will be updated if the unit is executed. Custom that takes a delegate that performs the execute operation. Initializes a new that invokes the specified method when the operation in the undo/redo history is to be performed. The description for the transaction. The detailed description for the transaction. The method to be invoked. The method returns a boolean indicating if the operation was successful. The object that is the target of the function. This information is exposed via the property. The executeMethod parameter cannot be null. Used to perform the associated action. Provides information about the undo/redo operation being executed. Returns true if some action was taken. Otherwise false is returned. In either case the object was removed from the undo stack. Returns a string representation of the action based on whether this is for an undo or redo operation. The type of history for which the description is being requested. A boolean indicating if a detailed description should be returned. For example, when false one may return "Typing" but for verbose one may return "Typing 'qwerty'". Returns the target object that will be affected by the Custom undo unit used to undo the result of a property change. The type of object whose property was changed The type of the property whose value was changed Base class for an that changes the value of a single property. Initializes a new Returns a string representation of the action based on whether this is for an undo or redo operation. The type of history for which the description is being requested. A boolean indicating if a detailed description should be returned. For example, when false one may return "Typing" but for verbose one may return "Typing 'qwerty'". Returns the new value that was set on the object. Returns the original value of the object that will be restored. Returns the name of the property that will be changed. Optional string representing the property name as it should be displayed to the end user. Optional string representing the target as it should be displayed to the end user. Initializes a new Object whose property was changed The old value of the property that is to be restored when an undo is performed. The new value of the property. The delegate used to perform the undo The name of the associated property The name of the property as it should be displayed to the end user or null to use the . A string representing the target as it should be displayed to the end user or null to obtain the string representation from the itself. Used to perform the associated action. Provides information about the undo/redo operation being executed. Used to allow multiple consecutive undo units to be merged into a single operation. Provides information about the unit to evaluate for a merge operation Returns an enumeration used to provide identify how the unit was merged. Returns the new value that was set on the object. Returns the original value of the object that will be restored. Optional string representing the property name as it should be displayed to the end user. Returns the name of the property that will be changed. Returns the target object that will be affected by the Optional string representing the target as it should be displayed to the end user. Returns the object whose property is to be restored when executed. Custom that contains one or more Initializes a new The description for the transaction or null to provide a default one. The detailed description for the transaction or null to provide a default one.

A transaction is typically created by using the . The control is exposed in case a derived transaction class is needed in which case one would need a derived where the method is overriden and then an instance of that factory class is set on either the or the properties.

 Used to perform the associated action for all items in the Provides information about the undo/redo operation being executed. Returns true if one or more of the executed successfully. Otherwise false is returned. Used to invoke an action on the descendants. The action to invoke on descendants Returns a string representation of the action based on whether this is for an undo or redo operation. The type of history for which the description is being requested. A boolean indicating if a detailed description should be returned. For example, when false one may return "Typing" but for verbose one may return "Typing 'qwerty'". Used to allow multiple consecutive undo units to be merged into a single operation. Provides information about the unit to evaluate for a merge operation Returns an enumeration used to provide identify how the unit was merged. Used to remove any matching descendants. The routine to evaluate any descendant units. This should not be executed against the UndoUnit whose RemoveAll is being called. Returns true if the item should be removed Used to close the group either committing the units or cancelling them. Indicates the action to take Invoked when a group is about to be opened. The parent for the group. Commits and closes the transaction Closes the transaction, executes the and removes it from the parent. Returns null since the is a group of instances and may affect multiple targets Returns a boolean indicating if the transaction has been closed/ended. Returns the child transaction that is currently opened. Returns the parent/containing Returns a read-only collection of the child units.

Units are added to a group by using the method.

 Factory class for creating common instances for use in an Initializes a new Creates an for the specified method. The description for the transaction. The more detailed description for the operation. The method to be invoked when an Undo is being performed. The method returns a boolean indicating if the operation was successful. The method to be invoked when an Redo is being performed. The method returns a boolean indicating if the operation was successful. The object that is the target of the function. This information is exposed via the property. An that can be used to undo the operation Creates an for a collection change based upon a specified . The type of item in the collection The collection that was modified An object that describes the changes made to the collection A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. An that can be used to undo the operation Creates an for an Add/Remove operation of a specific item. The type of item in the collection The collection that was modified Either 'Add' or 'Remove' to indicate the type of operation that occurred The item that was added or removed The index of the new item for an Add operation or the index where the item existed for a Remove operation. A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. An that can be used to undo the operation Creates an for an Add/Remove operation of multiple items. The type of item in the collection The collection that was modified Either 'Add' or 'Remove' to indicate the type of operation that occurred The item that were added or removed The index of the new item for an Add operation or the index where the item existed for a Remove operation. A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. An that can be used to undo the operation Creates an for replacing the entire contents of a collection. The type of item in the collection The collection that was modified The item to restore to the collection upon undo. A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. An that can be used to undo the operation Creates an for a Replace operation of a specific item. The type of item in the collection The collection that was modified The item that was removed/replaced The item that was add as the replacement for The index of the where the old item existed that is where the new item has been added. A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. An that can be used to undo the operation Creates an for Move operation of a specific item. The type of item in the collection The collection that was modified The item that was moved. The previous index of the item. The new index of the item. A string representing the type of items in the collection as they should be presented to the end user or null to use the type name and/or item. An that can be used to undo the operation Creates an for the specified property change. The type of class whose value was changed The type of the property that was changed The instance whose property was changed An expression for the property of the that was changed The old value of the property that should be restored when the action is undone. The new value of the property The preferred name of the property as it should be displayed to the end user. If this is not specified the actual name of the property will be used. The preferred name of the object whose property is being changed as it should be displayed to the end user. Returns an undo unit that can be used to undo the specified property change. Creates an for the specified property change. The type of class whose value was changed The type of the property that was changed The instance whose property was changed An expression for the property that was changed The old value of the property that should be restored when the action is undone. The new value of the property The preferred name of the property as it should be displayed to the end user. If this is not specified the actual name of the property will be used. The preferred name of the object whose property is being changed as it should be displayed to the end user. Returns an undo unit that can be used to undo the specified property change. Creates an for the specified property change. The type of class whose value was changed The type of the property that was changed The instance whose property was changed The string name of the public property that was changed. This is used to find the PropertyInfo for the property to be affected when the operation is undone. The old value of the property that should be restored when the action is undone. The new value of the property The preferred name of the property as it should be displayed to the end user. If this is not specified the actual name of the property will be used. The preferred name of the object whose property is being changed as it should be displayed to the end user. Returns an undo unit that can be used to undo the specified property change. Creates an The description for the transaction. The detailed description for the transaction. Returns a new instance Returns the default factory used to create instances for use in an

Note: This class should be thread safe since it will be stored statically.

 The property cannot be set to a null value. Contains static helper methods. Takes a Type and returns the underlying (non-nullable) type, if the Type is nullable. If the specified type is not nullable, then the passed-in type is returned. Wraps the 'get' of the Target property in a try/catch to prevent unhandled exceptions The WeakRefernce holding the target. The Target or null if an exception was thrown. Represents a read-only collection of items. Type of items contained in the collection. Constructor. Initializes a new instance of . This is the list that this ReadOnlyNotifyCollection will wrap and provide items from. Indicates whether the specified item is in the collection. Item to check if it's contained in the collection. True if the item exists in the collection, false otherwise. Copies items from this collection to the specified array. Destination array. The location in the destination array where the items will be copied. Returns the enumerator for enumerating items in the collection. IEnumerator instance. Returns the index of the specified item in the collection. The item whose index will be returned. The index of the item if the item exists in the collection, -1 otherwise. Raised when the collection's contents change. Returns the item at the specified index. Index of the item to get. Item at the specified index. Returns the number of items in the collection. Indicates whether the collection is read-only. Gets the source collection. IDictionary implementation that manages keys and/or values as weak references so they can be garbage collected. Type of keys Type of values Constructor. Initializes a new instance of . Specifies whether to manage keys as weak references. Specifies whether to manage keys as weak references. Constructor. Initializes a new instance of . Specifies whether to manage keys as weak references. Specifies whether to manage keys as weak references. Initial capacity. Constructor. Initializes a new instance of . Specifies whether to manage keys as weak references. Specifies whether to manage keys as weak references. Comparer for compring keys. Constructor. Initializes a new instance of . Specifies whether to manage keys as weak references. Specifies whether to manage keys as weak references. Initial capacity. Comparer for compring keys. Constructor. Initializes a new instance of . Specifies whether to manage keys as weak references. Specifies whether to manage keys as weak references. Initial capacity. Specifies load factor. Must be greater than 0 and less than or equal to 1. Comparer for compring keys. Creates a weak reference for the key. Key object. Weak reference to the key. Creates a weak reference for the key. Value object. Weak reference to the value. Expands or contracts the size of storage based on the new count after an operation, like add, remove or clear, is performed. Specifies that the storage should only be expanded, and not contracted. Adds an entry to the dictionary. If an entry with the specified key already exists, this method throws an exception. Key of the entry to add. Value to associate with the key. Removes all entries from the dictionary. Removes entries from the dictionary where keys are no longer alive (have been garbage collected). Note that keys can get garbage collected during the process of compacting and therefore it's not guarrenteed that all the entries in the dictionary will be with live keys after this operation is completed. Whether to also remove entries where value is null or has been garbage collected. Returns true if an entry with the specified key exists in the dictionary. Key to check for existence. Returns true if an entry with the specified key exists in the dictionary. Removes the entry with the specified key. Does nothing if the specified key doesn't exist. Key of the entry to remove. True if an entry was removed. False if entry with the specified key was not found. Gets the value associated with the specified key. If the entry doesn't exist, returns false. Gets or sets the value associated with the specified key. Set will add an entry for the key if it doesn't already exist. Value associated with this key will be returned. Value associated with the specified key. Returns the number of entries in the dictionary. Note that this will not take into account any garbage collected items - they will be included in the count. Returns the keys in the dictionary. Only keys with non-null values are returned. Returns the values in the dictionary. Only values with non-null keys are returned. Returns the keys in the dictionary. Returns the values in the dictionary. Contains version information for the Infragistics assemblies. Major.Minor number portion of the assembly version Build number portion of the assembly version Revision number portion of the assembly version Assembly version number Location of the resources for toolbox bitmaps. Assembly company name End year of assembly copyright The assembly version number for the satellite assemblies. The current build configuration for the assembly. Class used to provide the ability to customize resource strings. Creates a new instance of the ResourceCustomizer class. Gets the customized string identified by the specified string resource name. Name of the string resource that was customized. The customized string or null if the resource wasn't customized. Clears all strings customized by calls to method. Resets a customized string identified by the specified string resource name so that it will load from the resource file. Name of the string resource to customize. Sets a customized string identified by the specified string resource name. Name of the string resource to customize. The customized string. If null this has the same effect as calling Exposes a instance for this assembly. Returns the resource string using the specified name and default culture. Name of the string resource to return. Arguments supplied to the string.Format method when formatting the string. Returns the resource string using the specified resource name and default culture. The string is then formatted using the arguments specified. Name of the string resource to return. Returns the resource object using the specified name. Name of the resource item An object containing the specified resource Returns the for this assembly.