PopupMenuShowingEventArgs.Customizations Property

Provides access to the collection of context menu customization actions.

Namespace: DevExpress.Xpf.RichEdit

Assembly: DevExpress.Xpf.RichEdit.v23.2.dll

NuGet Package: DevExpress.Wpf.RichEdit

Declaration

C#

public BarManagerActionCollection Customizations { get; }

VB.NET

Public ReadOnly Property Customizations As BarManagerActionCollection

Property Value

Type	Description
BarManagerActionCollection	A collection of bar actions used to customize the context menu.

Remarks

The Customizations property allows you to customize the Rich Text Editor’s context menus. You can add or remove menu items. The PopupMenuShowingEventArgs.MenuType property allows you to determine for which element (document text, a header or footer, a picture, etc.) the menu is invoked.

The example below customizes the Text context menu as follows:

• Creates new Highlight Selection and Insert Picture items
• Removes the Increase Indent and Decrease Indent items

XAML

<dxre:RichEditControl Name="richTextEditor" 
                      PopupMenuShowing="richTextEditor_PopupMenuShowing">

C#

using DevExpress.XtraRichEdit.API.Native;
using DevExpress.Xpf.RichEdit;
using DevExpress.Xpf.Bars;
using DevExpress.Xpf.RichEdit.Menu;
using DevExpress.XtraRichEdit.Commands;
// ...

private void richTextEditor_PopupMenuShowing(object sender, PopupMenuShowingEventArgs e) {
    // Check whether the event is raised for document text.
    if (e.MenuType == RichEditMenuType.Text) {
        // Create a menu item to insert a picture
        // and bind this item to the Rich Text Editor's command.
        e.Customizations.Add(new BarButtonItem() {
            Command = RichEditUICommand.InsertFloatingPicture,
            Content = "Insert Picture",
            CommandParameter = richTextEditor
        });

        // Create a custom menu item to highlight selected text.
        var menuItem = new BarButtonItem() {
            Name = "highlightSelectionItem",
            Content = "Highlight Selection"
        };
        menuItem.ItemClick += MenuItem_ItemClick; ;
        e.Customizations.Add(menuItem);
    }

    // Remove the "Increase Indent" item from the menu.
    e.Customizations.Add(new RemoveRichEditCommandAction() {
        Id = RichEditCommandId.IncreaseIndent
    });

    // Remove the "Decrease Indent" item from the menu.
    e.Customizations.Add(new RemoveRichEditCommandAction() {
        Id = RichEditCommandId.DecreaseIndent
    });
}

private void MenuItem_ItemClick(object sender, ItemClickEventArgs e) {
    var selectedRanges = richTextEditor.Document.Selections;
    foreach (var range in selectedRanges) {
        var charProps = richTextEditor.Document.BeginUpdateCharacters(range);
        charProps.BackColor = System.Drawing.Color.Yellow;
        richTextEditor.Document.EndUpdateCharacters(charProps);
    }
}

VB.NET

Imports DevExpress.XtraRichEdit.API.Native
Imports DevExpress.Xpf.RichEdit
Imports DevExpress.Xpf.Bars
Imports DevExpress.Xpf.RichEdit.Menu
Imports DevExpress.XtraRichEdit.Commands
' ...

Private Sub richTextEditor_PopupMenuShowing(ByVal sender As Object, ByVal e As PopupMenuShowingEventArgs)
    ' Check whether the event is raised for document text.
    If e.MenuType = RichEditMenuType.Text Then
        ' Create a menu item to insert a picture
        ' and bind this item to the Rich Text Editor's command.
        e.Customizations.Add(New BarButtonItem() With {
            .Command = RichEditUICommand.InsertFloatingPicture,
            .Content = "Insert Picture",
            .CommandParameter = richTextEditor
        })

        ' Create a custom menu item to highlight selected text.
        Dim menuItem As New BarButtonItem() With {
            .Name = "highlightSelectionItem",
            .Content = "Highlight Selection"
        }
        menuItem.ItemClick += MenuItem_ItemClick
        e.Customizations.Add(menuItem)
    End If

    ' Remove the "Increase Indent" item from the menu.
    e.Customizations.Add(New RemoveRichEditCommandAction() With {
        .Id = RichEditCommandId.IncreaseIndent})

    ' Remove the "Decrease Indent" item from the menu.
    e.Customizations.Add(New RemoveRichEditCommandAction() With {
        .Id = RichEditCommandId.DecreaseIndent})
End Sub

Private Sub MenuItem_ItemClick(ByVal sender As Object, ByVal e As ItemClickEventArgs)
    Dim selectedRanges As SelectionCollection = richTextEditor.Document.Selections
    For Each range As DocumentRange In selectedRanges
        Dim charProps As CharacterProperties = richTextEditor.Document.BeginUpdateCharacters(range)
        charProps.BackColor = System.Drawing.Color.Yellow
        richTextEditor.Document.EndUpdateCharacters(charProps)
    Next range
End Sub