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RichTextBox.CanRedo Property

Gets a value indicating whether there are actions that have occurred within the RichTextBox that can be reapplied.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

[BrowsableAttribute(false)]
public bool CanRedo { get; }

Property Value

Type: System.Boolean
true if there are operations that have been undone that can be reapplied to the content of the control; otherwise, false.

You can use this property to determine whether the last operation undone in the RichTextBox can be reapplied using the Redo method.

The following code example demonstrates how to use the CanRedo and RedoActionName properties, and the Redo method, to restrict a redo operation to any action except the deletion of text. This example requires that you have a form that contains a RichTextBox control and that an operation within the RichTextBox has been performed and undone before the code in this example is called.


		private void RedoAllButDeletes()
		{
			// Determines if a Redo operation can be performed.
			if(richTextBox1.CanRedo == true)
			{
				// Determines if the redo operation deletes text.
				if (richTextBox1.RedoActionName != "Delete")
					// Perform the redo.
					richTextBox1.Redo();
			}
		}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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