First create solution

Nuvolar.Module/BusinessObjects/Business/CRM/Classical/CRM_Leads_Activity.vb

@@ -0,0 +1,55 @@
+Imports System
+Imports System.ComponentModel
+
+Imports DevExpress.Xpo
+Imports DevExpress.Data.Filtering
+
+Imports DevExpress.ExpressApp
+Imports DevExpress.Persistent.Base
+Imports DevExpress.Persistent.BaseImpl
+Imports DevExpress.Persistent.Validation
+
+Imports DevExpress.ExpressApp.ConditionalAppearance
+Imports DevExpress.ExpressApp.CloneObject
+
+'-- Paraméterek, enumok
+<DefaultClassOptions()> _
+<NavigationItem(False), CreatableItem(False)> _
+Public Class CRM_Leads_Activity
+    Inherits MySchedule
+    Private _CRM_Leads As CRM_Leads
+    Private _CRM_Opportunities As CRM_Opportunities
+
+    Public Sub New(ByVal session As Session)
+        MyBase.New(session)
+    End Sub
+    Public Overrides Sub AfterConstruction()
+        MyBase.AfterConstruction()
+    End Sub
+    <Association("CRM_Leads-CRM_Leads_Activity", GetType(CRM_Leads))> _
+    Property CRM_Leads As CRM_Leads
+        Get
+            Return _CRM_Leads
+        End Get
+        Set(value As CRM_Leads)
+            SetPropertyValue("CRM_Leads", _CRM_Leads, value)
+        End Set
+    End Property
+    Public Property CRM_Opportunities As CRM_Opportunities
+        Get
+            Return _CRM_Opportunities
+        End Get
+        Set(value As CRM_Opportunities)
+            SetPropertyValue("CRM_Opportunities", _CRM_Opportunities, value)
+        End Set
+    End Property
+    <Association("CRM_Leads_Activity-CRM_Leads_Activity_Task", GetType(CRM_Leads_Activity_Task))> _
+    ReadOnly Property CRM_Leads_Activity_Task As XPCollection(Of CRM_Leads_Activity_Task)
+        Get
+            Return GetCollection(Of CRM_Leads_Activity_Task)("CRM_Leads_Activity_Task")
+        End Get
+    End Property
+End Class
+
+
+