ToolbarUndoButton Class

A default toolbar button that allows the previous action performed within the design view area to be canceled.

Namespace : DevExpress.Web.ASPxHtmlEditor

Assembly : DevExpress.Web.ASPxHtmlEditor.v25.2.dll

Declaration

C#
VB.NET

csharp

public class ToolbarUndoButton :
    HtmlEditorToolbarItem

Public Class ToolbarUndoButton
    Inherits HtmlEditorToolbarItem

Remarks

The ASPxHtmlEditor keeps track of all user actions, and allows you to undo or repeat them by using the Undo and Redo buttons ( ToolbarUndoButton and ToolbarRedoButton).

You can add the Undo button to toolbars by using either the ASPxHtmlEditor designer at design time, or programmatically.

C#
ASPX

csharp

protected void Page_Load(object sender, EventArgs e) {
    HtmlEditorToolbar stToolbar1 = HtmlEditorToolbar.CreateStandardToolbar1();
    ToolbarUndoButton undo = new ToolbarUndoButton();
    stToolbar1.Items.Add(undo);
    ASPxHtmlEditor1.Toolbars.Add(stToolbar1);
}

aspx

<dx:ASPxHtmlEditor ID="ASPxHtmlEditor1" runat="server">
    <Toolbars>
        <dx:HtmlEditorToolbar Name="StandardToolbar1">
            <Items>
                <dx:ToolbarUndoButton>
                </dx:ToolbarUndoButton>
            </Items>
        </dx:HtmlEditorToolbar>
    </Toolbars>
</dx:ASPxHtmlEditor>

Implements

IStateManager

IPropertiesOwner

IExpressionsAccessor

Inheritance

Object StateManager CollectionItem ToolbarItemBase HtmlEditorToolbarItem ToolbarUndoButton