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ComboBox not bining collection inside collection on DataGrid xaml wpf

What I have tried:

xaml code inside DataGrid
<DataGridTemplateColumn Header="Unit" Width="65"> 
            <my:PLGDComboBox Height="23"
                             ItemsSource="{Binding Path=SaveCls.PurDtlMastCol[RowIndx].ItemUnitCol,RelativeSource={RelativeSource AncestorType={x:Type invname:MasterForm},AncestorLevel=1,Mode=FindAncestor},UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"
                             SelectedValue="{Binding  Path=PurUnit.UnitId,UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}" 
    </DataTemplate >

View Model Code:

if (dtUnit.Rows.Count > 0) 
     this.SaveCls.PurDtlMastCol[rowIndex].ItemUnitCol = new PL21000DCol(); 
     foreach (DataRow dr in dtUnit.Rows)
        this.SaveCls.PurDtlMastCol[rowIndex].ItemUnitCol.Add(new PL21000D() { 
        UnitId = PLWM.Utils.CnvToInt64(dr["unit_id"]),
        UnitName = PLWM.Utils.CnvToStr(dr["unit_name"]) 
Updated 25-Jul-18 6:00am
Graeme_Grant 25-Jul-18 10:05am    
What is the Output window telling you? I am guessing that you have a binding error.
Member 11220730 27-Jul-18 6:18am    
empty Combobox ,No error.

1 solution

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