XafApplication.CreateDetailView(IObjectSpace, Object, Boolean) Method

Creates a DetailView for the specified object and initializes its properties.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v23.2.dll

NuGet Package: DevExpress.ExpressApp

Declaration

C#

public DetailView CreateDetailView(
    IObjectSpace objectSpace,
    object obj,
    bool isRoot
)

VB.NET

Public Function CreateDetailView(
    objectSpace As IObjectSpace,
    obj As Object,
    isRoot As Boolean
) As DetailView

Parameters

Name	Type	Description
objectSpace	IObjectSpace	An IObjectSpace object representing the Object Space which is used to work with the new Detail View’s DetailView.CurrentObject. This object is assigned to the View.ObjectSpace property.
obj	Object	An object which is represented by the new Detail View. This object is assigned to the DetailView.CurrentObject property.
isRoot	Boolean	true, if the created Detail View is independent and owns the Object Space passed using the objectSpace parameter; false, if the created Detail View is nested to another root View that owns the Object Space. This value is assigned to the View.IsRoot property.

Returns

Type	Description
DetailView	A Detail View that represents the object passed as the obj parameter.

Remarks

Use this method to create a Detail View for the object specified by the obj parameter. The information on the created Detail View is taken from the Application Model‘ node specified by the IModelClass.DefaultDetailView property of the corresponding IModelClass node.

The object specified in the obj parameter should belong to the Object Space specified in the objectSpace parameter. To pass an object from another Object Space to this Object Space, use the IObjectSpace.GetObject method.

Pass true to the isRoot parameter if the new View owns the Object Space passed to the objectSpace parameter. If this Object Space already belongs to another View, pass false. Note that certain Controllers and Actions are deactivated in this case. See View.IsRoot for additional information. To avoid this, use the XafApplication.CreateObjectSpace or XafApplication.CreateNestedObjectSpace method to create a new Object Space, and pass this Object Space to the objectSpace parameter.

The example below demonstrates how to open an object’s Detail View via a PopupWindowShowAction.

C#

using System;
using DevExpress.ExpressApp;
using DevExpress.ExpressApp.Actions;
using DevExpress.Persistent.Base;
using DevExpress.Persistent.BaseImpl;
// ...
public class ShowDetailViewController : ObjectViewController<ListView, Person> {
    public ShowDetailViewController() {
        PopupWindowShowAction showDetailViewAction = new PopupWindowShowAction(
            this, "ShowDetailView", PredefinedCategory.Edit);
        showDetailViewAction.SelectionDependencyType = SelectionDependencyType.RequireSingleObject;
        showDetailViewAction.CustomizePopupWindowParams += ShowDetailViewAction_CustomizePopupWindowParams;
    }
    private void ShowDetailViewAction_CustomizePopupWindowParams(
        object sender, CustomizePopupWindowParamsEventArgs e) {
        IObjectSpace objectSpace = Application.CreateObjectSpace(typeof(Person));
        Object currentObject = objectSpace.GetObject(View.CurrentObject);
        if(currentObject != null) {
            e.View = Application.CreateDetailView(objectSpace, currentObject, true);
        }
        else {
            objectSpace.Dispose();
        }
    }
}

VB.NET

Imports DevExpress.ExpressApp
Imports DevExpress.ExpressApp.Actions
Imports DevExpress.Persistent.Base
Imports DevExpress.Persistent.BaseImpl

Public Class ShowDetailViewController
    Inherits ObjectViewController(Of ListView, Person)
    Public Sub New()
        Dim showDetailViewAction As New PopupWindowShowAction(Me, "ShowDetailView", PredefinedCategory.Edit)
        showDetailViewAction.SelectionDependencyType = SelectionDependencyType.RequireSingleObject
        AddHandler showDetailViewAction.CustomizePopupWindowParams, _
            AddressOf ShowDetailViewAction_CustomizePopupWindowParams
    End Sub
    Private Sub ShowDetailViewAction_CustomizePopupWindowParams(ByVal sender As Object, _
        ByVal e As CustomizePopupWindowParamsEventArgs)
        Dim objectSpace As IObjectSpace = Application.CreateObjectSpace(GetType(Person))
        Dim currentObject As Object = objectSpace.GetObject(View.CurrentObject)
        If currentObject IsNot Nothing Then
            e.View = Application.CreateDetailView(objectSpace, currentObject, True)
        Else
            objectSpace.Dispose()
        End If
    End Sub
End Class