RichEditControl.CanUndo Property

Indicates whether the user can undo the previous operation.

Namespace: DevExpress.XtraRichEdit

Assembly: DevExpress.XtraRichEdit.v20.2.dll

NuGet Package: DevExpress.Win.RichEdit

Declaration

C#

[Browsable(false)]
public bool CanUndo { get; }

VB.NET

<Browsable(False)>
Public ReadOnly Property CanUndo As Boolean

Property Value

Type	Description
Boolean	true if the user can undo the previous opration; otherwise, false.

Remarks

If the CanUndo returns true, you can call the RichEditControl.Undo method to undo the last operation.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the CanUndo property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-merge-bars-within-the-documentmanager-control-e4950/CS/DocumentManagerBarMerging/ucContent.cs#L27

private void richEditControl1_TextChanged(object sender, EventArgs e) {
    if (true == richEditControl1.CanUndo) barButtonItem1.Enabled = true;
        else barButtonItem1.Enabled = false;

VB.NET

how-to-merge-bars-within-the-documentmanager-control-e4950/VB/DocumentManagerBarMerging/ucContent.vb#L30

Private Sub richEditControl1_TextChanged(ByVal sender As Object, ByVal e As EventArgs) Handles richEditControl1.TextChanged
    If True = richEditControl1.CanUndo Then
        barButtonItem1.Enabled = True