PopupControlContainer.BeforePopup Event

Fires when the pop-up is about to be displayed and allows you to adjust its settings (e.g., size), or cancel the action.

Namespace: DevExpress.XtraBars

Assembly: DevExpress.XtraBars.v23.2.dll

NuGet Package: DevExpress.Win.Navigation

Declaration

C#

[DXCategory("Events")]
public event CancelEventHandler BeforePopup

VB.NET

<DXCategory("Events")>
Public Event BeforePopup As CancelEventHandler

Event Data

The BeforePopup event's data class is CancelEventArgs. The following properties provide information specific to this event:

Property	Description
Cancel	Gets or sets a value indicating whether the event should be canceled.

Remarks

To display the pop-up, call the PopupControlContainer.ShowPopup method. Before the pop-up is shown, the BeforePopup event fires. Within the event handler, you can adjust pop-up settings (e.g., size), or prohibit displaying the pop-up.

C#

private void popupControlContainer1_BeforePopup(object sender, EventArgs e) {
    PopupControlContainer popup = (PopupControlContainer)sender;
    if (popup != null) {
        popup.Width = 500;
        popup.Height = 500;
    }
    //You can also prohibit to show the pop-up.
    //e.Cancel = true;
}

VB.NET

Private Sub popupControlContainer1_BeforePopup(ByVal sender As Object, ByVal e As EventArgs) Handles popupControlContainer1.BeforePopup
    Dim popup As PopupControlContainer = DirectCast(sender, PopupControlContainer)
    If popup IsNot Nothing Then
        popup.Width = 500
        popup.Height = 500

    End If
    'You can also prohibit to show the pop-up.
    'e.Cancel = True
End Sub