hi, this is my xaml code.

 <sdk:DataGrid x:Name="dgMarks"  CanUserResizeColumns="False"  SelectionMode="Single"   AutoGenerateColumns="False" VerticalAlignment="Top" IsReadOnly="True"  Margin="13,44,0,0" RowDetailsVisibilityChanged="dgMarks_RowDetailsVisibilityChanged"    RowDetailsVisibilityMode="Collapsed" Height="391" HorizontalAlignment="Left" Width="965" SelectionChanged="dgMarks_SelectionChanged"  VerticalScrollBarVisibility="Visible" >
            <sdk:DataGrid.Columns>
                <sdk:DataGridTemplateColumn>
                    <sdk:DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <Button x:Name="myButton"   
                            Click="ExpandMarks_Click">
     <TextBlock Text="{Binding Level}" TextWrapping="NoWrap"  ></TextBlock>
                                <Image  x:Name="imgMarks"  Stretch="None"/>
                            </Button>
                        </DataTemplate>
                    </sdk:DataGridTemplateColumn.CellTemplate>
                </sdk:DataGridTemplateColumn>
                <sdk:DataGridTemplateColumn  Header="Name" Visibility="Collapsed">
                    <sdk:DataGridTemplateColumn.CellTemplate>
                        <DataTemplate >
                            <sdk:Label Content="{Binding Name}"/>
                        </DataTemplate>
                    </sdk:DataGridTemplateColumn.CellTemplate>
                </sdk:DataGridTemplateColumn>

                <sdk:DataGridTemplateColumn  Header="Marks" Width="80">
                    <sdk:DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
   <sdk:Label Content="{Binding Marks}"/>
                        </DataTemplate>
                    </sdk:DataGridTemplateColumn.CellTemplate>
                </sdk:DataGridTemplateColumn>
            </sdk:DataGrid.Columns>
 </sdk:DataGrid>

from database i am getting these values

 name   marks   Level
abc     23       0
xyz     67       1
yu     56        0
aa     89        1

here i am binding these values for datagrid. i have an tricky thing to be done .based on the level i should be binding image if level value is 1 then bind the image. if level value is 0 then do not bind the image for that row

i know this is how we need to handle but where should i write this code in which events?

Image imgLevel = (Image)templateTrendScore.FindName("imgMarks");

if (level1==1)
{
  imgLevel .Source = new BitmapImage(new Uri("/Images/image1.JPG", UriKind.Relative));
}

any help would be great thanks in advance