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.v20.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

public class ToolbarUndoButton :
    HtmlEditorToolbarItem

VB.NET

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#

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