ViewController.TargetViewType Property
Specifies the type of the View, for which a View Controller is intended.
Namespace: DevExpress.ExpressApp
Assembly: DevExpress.ExpressApp.v24.2.dll
NuGet Package: DevExpress.ExpressApp
#Declaration
#Property Value
Type | Default | Description |
---|---|---|
View |
Any | A View |
Available values:
Name | Description |
---|---|
Any | An Action or a View Controller will be activated in Frames (Windows) with any Views. |
Detail |
An Action or a View Controller will be activated in Frames (Windows) with Detail Views. |
List |
An Action or a View Controller will be activated in Frames (Windows) with List Views. |
Dashboard |
An Action or a View Controller will be activated in Frames (Windows) with Dashboard Views. |
#Remarks
View Controllers can be activated for both List and Detail Views. You can use the TargetViewType property to provide View Controller activation within the List, Detail, or any type of View.
Note
The Target
Alternatively, you can implement the generic ViewController<ViewType> Controller instead of the ViewController and specify the View’s type, for which this Controller is intended, in the ViewType generic parameter. In this case, you do not need to perform an additional cast when you access the View.
The example below demonstrates how to add a PopupWindowShowAction to all List Views in an application.
using System;
using DevExpress.ExpressApp;
using DevExpress.ExpressApp.Actions;
using DevExpress.Persistent.Base;
using DevExpress.Persistent.BaseImpl;
// ...
public class ShowListViewController : ViewController {
public ShowListViewController() {
TargetViewType = ViewType.ListView;
PopupWindowShowAction showListViewAction = new PopupWindowShowAction(this, "ShowListView",
PredefinedCategory.Edit);
showListViewAction.CustomizePopupWindowParams += ShowListViewAction_CustomizePopupWindowParams;
}
private void ShowListViewAction_CustomizePopupWindowParams(object sender, CustomizePopupWindowParamsEventArgs e) {
Type objectType = typeof(Person);
e.View = Application.CreateListView(objectType, true);
}
}