ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Framework Namespace / CompositeOperationManager Class / UndoAsync Method / UndoAsync(String) Method
The category of operation of undo.

In This Topic
    UndoAsync(String) Method
    In This Topic
    Rolls back the most recent operation belonging to a specific category.
    Syntax
    public override Task UndoAsync( 
       string category
    )
    Public Overloads Overrides NotOverridable Function UndoAsync( _
       ByVal category As String _
    ) As Task

    Parameters

    category
    The category of operation of undo.

    Return Value

    A task that represents the work queued to execute in the ThreadPool.
    Exceptions
    ExceptionDescription
    Thrown when the operation's ArcGIS.Desktop.Framework.Contracts.Operation.CanUndo method returns false.
    Thrown when the operation's ArcGIS.Desktop.Framework.Contracts.Operation.CanUndo method returns false.
    Remarks

    The most recent operation of a particular category in the stack is undone by calling its ArcGIS.Desktop.Framework.Contracts.Operation.UndoAsync method. The operation is then added to this OperationManager's redo stack.

    Requirements

    Target Platforms: Windows 11, Windows 10, Windows 8.1

    See Also