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.NET 6.0+

PopupWindowShowAction.CustomizePopupWindowParams Event

Occurs when generating a pop-up Window for a Pop-up Window Show Action.

Namespace: DevExpress.ExpressApp.Actions

Assembly: DevExpress.ExpressApp.v23.2.dll

NuGet Package: DevExpress.ExpressApp


public event CustomizePopupWindowParamsEventHandler CustomizePopupWindowParams

Event Data

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

Property Description
Action Provides access to the Pop-up Window Show Action for which the PopupWindowShowAction.CustomizePopupWindowParams event has been raised.
Application Provides access to an XafApplication object that provides methods and properties to manage the current application.
Context Specifies the Frame.Context of the pop-up window which is customized by a PopupWindowShowAction.CustomizePopupWindowParams event’s handler.
DialogController Specifies a Dialog Controller which is activated for a Pop-up Window Show Action’s pop-up Window.
IsSizeable Specifies whether the pop-up Window created for a Pop-up Window Show Action is sizable.
Maximized Gets or sets a value that specifies whether the window is maximized.
Size Specifies the size of a pop-up window.
View Specifies the View that should be displayed by the Pop-up Window Show Action’s pop-up Window.


Handle this event to specify a View for a PopupWindowShowAction to show. For this purpose, use the handler’s CustomizePopupWindowParamsEventArgs.View parameter. You can also use the CustomizePopupWindowParamsEventArgs.IsSizeable property, to specify the pop-up Window’s ability to be sizable.

The following example creates a List View and displays it via a PopupWindowShowAction.

using System;
using DevExpress.ExpressApp;
using DevExpress.ExpressApp.Actions;
using DevExpress.Persistent.Base;
using DevExpress.Persistent.BaseImpl;
// ...
public class ShowListViewController : ViewController {
    public ShowListViewController() {
        PopupWindowShowAction showListViewAction = new PopupWindowShowAction(this, "ShowListView",
        showListViewAction.CustomizePopupWindowParams += ShowListViewAction_CustomizePopupWindowParams;
    private void ShowListViewAction_CustomizePopupWindowParams(object sender, CustomizePopupWindowParamsEventArgs e) {
        Type objectType = typeof(Person);
        e.View = Application.CreateListView(objectType, true);

The following code snippets (auto-collected from DevExpress Examples) contain references to the CustomizePopupWindowParams event.


The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

See Also