GridControl.ContextMenuOpening Event

Occurs before a user opens a context menu.

Namespace: DevExpress.WinUI.Grid

Assembly: DevExpress.WinUI.Grid.v23.2.dll

NuGet Package: DevExpress.WinUI

Declaration

C#

public event EventHandler<ContextMenuOpeningEventArgs> ContextMenuOpening

VB.NET

Public Event ContextMenuOpening As EventHandler(Of ContextMenuOpeningEventArgs)

Event Data

The ContextMenuOpening event's data class is DevExpress.WinUI.Core.Internal.ContextMenuOpeningEventArgs.

Remarks

The ContextMenuOpening event allows you to customize the default context menu. The ContextMenuOpeningEventArgs.Info property returns information about the context menu.

The following code sample adds the Show Search Panel and Hide Search Panel items to the group panel‘s context menu:

XAML

<dxg:GridControl ...
                 ShowGroupPanel="True" 
                 ContextMenuOpening="grid_ContextMenuOpening">
    <!-- ... -->
</dxg:GridControl>

C#

void grid_ContextMenuOpening(object sender, DevExpress.WinUI.Core.Internal.ContextMenuOpeningEventArgs e) {
    var menuInfo = e.Info as GridGroupPanelContextMenuInfo;
    if (menuInfo != null) {
        var contextMenu = menuInfo.MenuContent;
        contextMenu.Items.Add(new MenuFlyoutSeparator());
        contextMenu.Items.Add(new MenuFlyoutItem() {Text = "Show Search Panel", Command = menuInfo.Commands.ShowSearchPanel});
        contextMenu.Items.Add(new MenuFlyoutItem() {Text = "Hide Search Panel", Command = menuInfo.Commands.HideSearchPanel});
    }
}

VB.NET

Private Sub grid_ContextMenuOpening(ByVal sender As Object, ByVal e As DevExpress.WinUI.Core.Internal.ContextMenuOpeningEventArgs)
    Dim menuInfo = TryCast(e.Info, GridGroupPanelContextMenuInfo)

    If menuInfo IsNot Nothing Then
        Dim contextMenu = menuInfo.MenuContent
        contextMenu.Items.Add(New MenuFlyoutSeparator())
        contextMenu.Items.Add(New MenuFlyoutItem() With {
            .Text = "Show Search Panel",
            .Command = menuInfo.Commands.ShowSearchPanel
        })
        contextMenu.Items.Add(New MenuFlyoutItem() With {
            .Text = "Hide Search Panel",
            .Command = menuInfo.Commands.HideSearchPanel
        })
    End If
End Sub