First create solution

Nuvolar.Module.Web/Editor/DashboardViewerPropertyEditor.vb

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+Imports Microsoft.VisualBasic
+Imports System
+Imports System.Web.UI.WebControls
+Imports DevExpress.ExpressApp
+Imports DevExpress.ExpressApp.Editors
+Imports DevExpress.ExpressApp.Web.Editors
+Imports DevExpress.ExpressApp.Model
+Imports DevExpress.DashboardWeb
+
+Public Class DashboardViewerPropertyEditor
+    Inherits WebPropertyEditor
+
+    'Private DashboardViewerUserControlCore As DashboardViewerUserControl = Nothing
+    'Public ReadOnly Property DashboardViewerUserControl() As DashboardViewerUserControl
+    '    Get
+    '        Return DashboardViewerUserControlCore
+    '    End Get
+    'End Property
+
+    Private _ASPxDashboardViewer As ASPxDashboardViewer
+
+    ReadOnly Property ASPxDashboardViewer As ASPxDashboardViewer
+        Get
+            Return _ASPxDashboardViewer
+        End Get
+    End Property
+    Public Sub New(ByVal objectType As Type, ByVal info As IModelMemberViewItem)
+        MyBase.New(objectType, info)
+    End Sub
+    Protected Overrides Function CreateViewModeControlCore() As WebControl
+        _ASPxDashboardViewer = New ASPxDashboardViewer
+        Return _ASPxDashboardViewer
+    End Function
+    Protected Overrides Function CreateEditModeControlCore() As WebControl
+        _ASPxDashboardViewer = New ASPxDashboardViewer
+        Return _ASPxDashboardViewer
+    End Function
+
+    Protected Overrides Function GetControlValueCore() As Object
+        Return _ASPxDashboardViewer
+    End Function
+
+    Protected Overrides Sub ReadEditModeValueCore()
+
+    End Sub
+End Class