Hello,

i have a extended object which contains a DataTable - Property with my datasource.

on the basis of databinding and avoidance of code behind (a  impossible thing with XamDataGrid :-( ) i have set my entity business object into the datacontext property of XamDataGrid.

DataContext="{Binding Path=MaskControl.Entities[ADR_Verteiler]}"

in code behind i have a centralized method to bring out all necessary datas from DataContext.

        Dim Ent As swb_MaskControl.SWBMaskControlEntity = pGetEntityContext(Grid)

        If Ent IsNot Nothing Then

            'Grid.DataContext = Nothing

            Dim bnd As New System.Windows.Data.Binding
            bnd.Source = Ent
            bnd.Path = New System.Windows.PropertyPath("DataTable.DefaultView")
            Grid.SetBinding(DataPresenterBase.DataSourceProperty, bnd)
            Grid.FieldLayoutSettings.AllowAddNew = True
            Grid.FieldLayoutSettings.HighlightAlternateRecords = True

            Dim bndReadonly As New System.Windows.Data.Binding
            bndReadonly.Source = Ent
            bndReadonly.Converter = New swb_System.Converter.BoolToOppositeNullableBoolConverter
            bndReadonly.Path = New System.Windows.PropertyPath("IsReadonly")

            .

            .

            .

everything works, but i have a lot of BindingExpressions at runtime. if i set the datacontext to nothing i have no more BindingExpression errors.

i'm waiting eagerly for an update.

Thank you.