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V24.2
.NET 8.0+

DevExpress v24.2 Update — Your Feedback Matters

Our What's New in v24.2 webpage includes product-specific surveys. Your response to our survey questions will help us measure product satisfaction for features released in this major update and help us refine our plans for our next major release.

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Customize ShowViewParameters for Built-in Simple Actions

To customize ShowViewParameters, handle the Executed event. If an action owner controller has an event that allows you to customize ShowViewParameters, use this event instead of the Executed event.

The example below demonstrates how to show a Detail View in a pop-up window when a user activates a NewObjectAction or a ProcessCurrentObjectAction.

using DevExpress.ExpressApp;
using DevExpress.ExpressApp.SystemModule;

namespace MainDemo.Module.Controllers {
    public class ChangeWindowTypeToModalController : ViewController<ListView> {
        private void NewObjectAction_Executed(object sender, DevExpress.ExpressApp.Actions.ActionBaseEventArgs e) {
            e.ShowViewParameters.TargetWindow = TargetWindow.NewModalWindow;
        }
        private void ListViewProcessCurrentObjectController_CustomizeShowViewParameters(object sender, CustomizeShowViewParametersEventArgs e) {
            e.ShowViewParameters.TargetWindow = TargetWindow.NewModalWindow;
        }
        protected override void OnActivated() {
            base.OnActivated();
            NewObjectViewController newObjectViewController = Frame.GetController<NewObjectViewController>();
            if (newObjectViewController != null) {
                newObjectViewController.NewObjectAction.Executed += NewObjectAction_Executed;
            }
            ListViewProcessCurrentObjectController listViewProcessCurrentObjectController = Frame.GetController<ListViewProcessCurrentObjectController>();
            if(listViewProcessCurrentObjectController != null) {
                listViewProcessCurrentObjectController.CustomizeShowViewParameters += ListViewProcessCurrentObjectController_CustomizeShowViewParameters;
            }
        }
        protected override void OnDeactivated() {
            NewObjectViewController newObjectViewController = Frame.GetController<NewObjectViewController>();
            if(newObjectViewController != null) {
                newObjectViewController.NewObjectAction.Executed -= NewObjectAction_Executed;
            }
            ListViewProcessCurrentObjectController listViewProcessCurrentObjectController = Frame.GetController<ListViewProcessCurrentObjectController>();
            if(listViewProcessCurrentObjectController != null) {
                listViewProcessCurrentObjectController.CustomizeShowViewParameters -= ListViewProcessCurrentObjectController_CustomizeShowViewParameters;
            }
            base.OnDeactivated();
        }
    }
}