ComboBoxEdit.GetPopupEditForm() Method

Returns the control’s popup window.

Namespace: DevExpress.XtraEditors

Assembly: DevExpress.XtraEditors.v22.1.dll

NuGet Package: DevExpress.Win.Navigation

Declaration

C#

public ComboBoxPopupListBoxForm GetPopupEditForm()

VB.NET

Public Function GetPopupEditForm As ComboBoxPopupListBoxForm

Returns

Type	Description
DevExpress.XtraEditors.Popup.ComboBoxPopupListBoxForm	A DevExpress.XtraEditors.Popup.ComboBoxPopupListBoxForm object that represents the control’s popup window. null (Nothing in VB) if the popup window has not been opened yet.

Remarks

At runtime, the control’s popup window can be opened with a click on the control’s dropdown button, or in code using the PopupBaseEdit.ShowPopup method. After the popup window has been opened for the first time, you can use the GetPopupEditForm method to get access to the popup window object. If the popup window has not been opened yet, the GetPopupEditForm returns null (Nothing in VB). Typically, you will be calling the GetPopupEditForm method in the PopupBaseEdit.Popup event handler to get access to the popup window after it has been opened. In the event handler, you can adjust the popup window settings, or handle its events. See the code below.

C#

private void comboBoxEdit1_Popup(object sender, EventArgs e) {
    DevExpress.XtraEditors.ComboBoxEdit edit = sender as DevExpress.XtraEditors.ComboBoxEdit;
    if (edit != null){
        DevExpress.XtraEditors.Popup.ComboBoxPopupListBoxForm popupForm = edit.GetPopupEditForm();
        // ... 
    }
}

VB.NET

Private Sub ComboBoxEdit1_Popup(sender As Object, e As EventArgs) Handles ComboBoxEdit1.Popup
    Dim edit As DevExpress.XtraEditors.ComboBoxEdit = TryCast(sender, DevExpress.XtraEditors.ComboBoxEdit)
    If edit IsNot Nothing Then
        Dim popupForm As DevExpress.XtraEditors.Popup.ComboBoxPopupListBoxForm = edit.GetPopupEditForm()
        ' ...
    End If
End Sub