Add and manage Checkboxcolumn to the start of a bound datagrid

Hi,

    I have a DataGrid which is bound to a List<X>. I am looking for is add a column at the start of the DataGrid & if that checkbox is selecetd then only retrieve the values of the row, else ignore it. Similarly, when I set the ItemSource of the DataGrid, for each row added the 1st cols checkbox should be checked.

   I have not written any code for retrieving data from datagrid by checking the 1st col, as all rows got to be added to the List. When I set the ItemSource I am not able to check mark the 1st checkbox col of that row. The code is :

XML -

<DataGrid AutoGenerateColumns="False" Name="dgvSiSelection" BorderBrush="#FFB7B39D" Background="LightYellow" RowBackground="LightGray" AlternatingRowBackground="#FFFFFFF5" BorderThickness="10" FontSize="13" FontFamily="Segoe UI" CanUserAddRows="False"><DataGrid.Columns><DataGridCheckBoxColumn Binding="{Binding BoolProperty, Mode=TwoWay}"/><DataGridTextColumn Header="" Binding="{Binding SiHeader}" MinWidth="108" IsReadOnly="True"/><DataGridTextColumn Header="Number of Chemicals" Binding="{Binding S_NumberOfCases}" /><DataGridTextColumn Binding="{Binding S_Value1}" ><DataGridTextColumn.Header><Grid><Grid.ColumnDefinitions><ColumnDefinition/><ColumnDefinition/></Grid.ColumnDefinitions><TextBlock Grid.Column="1" Text="Value1"/><CheckBox Name="chkNValue1"  Grid.Column="0" Width="16" IsChecked="{Binding RelativeSource={RelativeSource AncestorType={x:Type DataGridColumn}}, Path=DataContext.AllItemsAreChecked}" /></Grid></DataGridTextColumn.Header></DataGridTextColumn><DataGridTextColumn Binding="{Binding S_Value2}" ><DataGridTextColumn.Header><Grid><Grid.ColumnDefinitions><ColumnDefinition/><ColumnDefinition/></Grid.ColumnDefinitions><TextBlock Grid.Column="1" Text="Value2"/><CheckBox Name="chkNValue2"  Grid.Column="0" Width="16" IsChecked="{Binding RelativeSource={RelativeSource AncestorType={x:Type DataGridColumn}}, Path=DataContext.AllItemsAreChecked}" /></Grid></DataGridTextColumn.Header></DataGridTextColumn></DataGrid.Columns></DataGrid></GroupBox>

    public class SIData
    {
        public string SiHeader { get; set; }
        public string S_NumberOfCases { get; set; }
        public int S_Value1 { get; set; }
        public int S_Value2 { get; set; }
    }


        private void LoadGUI()
        {
            List<SIData> sd = mw.xlsImpExp.GetStep5SiList();

            dgvSiSelection.ItemsSource = sd;

            // SI Grid - Check the ValueX checkbox on header - if any of the object contains Value1 or Value2 then check mark that respective cheader checkbox
            for (int i = 0; i < sd.Count; i++)
            {
                SIData s = sd[i];

                if (s.S_Value1 > 0)
                    chkNValue1.IsChecked = true;
                if (s.S_Value1 > 0)
                    chkNValue2.IsChecked = true;
            }

           // What code do I write to check mark the checkbox 1st col of rows that are entered ?

            return;
        }

Lets say the List has 2 objects, so in dataGrid 2 rows will be added. Now, I want to cehckmark the 1st col i.e. the checkbox of both rows. How do I achieve that ?

Secondly, I was also wondering, is their any better or easy code to set the checkmark of Value1 & Value2 if any of the rows have values of respective field greater than 0. I mean, if 1st row have "4" in S_Value1 & 2nd row has "0", then Value1 checkbox chkNValue1 should be clicked. If all the rows have value as "0" in S_Value2 field, then the chkNValue2 checkbox should not be selected.

Any help is appreciated. Please help me with this.

Thanks

Thanks
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