How get index rows which user is checked in DataGrid in Wpf?

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I have DataGrid in Window and I put column inside the DataGrid type "DataGridCheckBox",and I have button in the same Window, but the problem is I don't know how can get index all the rows which user is checked when user click this button. the code is :

XML

<Window x:Class="BenashManage.DeletePerson"
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
<Grid HorizontalAlignment="Right" Margin="0,0,0.4,-0.4" Width="546" >
  <DataGrid Margin="15,104,13.6,48.8" Grid.Row="1" Name="GridEdite" ItemsSource="{Binding Customers}" AutoGenerateColumns="False" FlowDirection="RightToLeft" AlternatingRowremoved="AliceBlue" Grid.RowSpan="2" IsSynchronizedWithCurrentItem="True" CanUserResizeColumns="False" CanUserReorderColumns="False" SelectionMode="Single" SelectionUnit="CellOrRowHeader"   >
     <DataGrid.Columns>
         <DataGridCheckBoxColumn Binding="{Binding Path=delete}" Header="deletedata"/>
     </DataGrid.Columns>
  </DataGrid>
  <Button Content="delete" Style="{DynamicResource BlueButtonStyle}" HorizontalAlignment="Left" Foreground="White"  Margin="211,328.2,0,9.8" Grid.Row="2"  Width="118" TextBlock.FontSize="20" Click="OnClicked"/>
</Grid>

behind code:

C#

  private void OnClicked(object sender, RoutedEventArgs e)
    {
//how can get all index rows which user checked. 
    }

Posted 25-Sep-13 21:31pm

mohammad.tofi

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Rick van Woudenberg · Answer 1 · 2013-09-25T22:12:00

You have to use datagridview iteration to search for checked boxes. You should initiate this in your button click event handler. First we have to get all the rows of the datagrid :

C#

public IEnumerable<Microsoft.Windows.Controls.DataGridRow> GetDataGridRows(Microsoft.Windows.Controls.DataGrid grid)
{
    var itemsSource = grid.ItemsSource as IEnumerable;
    if (null == itemsSource) yield return null;
    foreach (var item in itemsSource)
    {
        var row = grid.ItemContainerGenerator.ContainerFromItem(item) as Microsoft.Windows.Controls.DataGridRow;
        if (null != row) yield return row;
    }
}

and then iterate through your grid:

C#

var rows= GetDataGridRows(nameofyourdatagrid); 

foreach (DataGridRow r in rows)  
  {  
    DataRowView rv = (DataRowView)r.Item;
    if (r.Checked)
    {
       foreach (DataGridColumn column in nameofyordatagrid.Columns)
       {
           if (column.GetCellContent(r) is TextBlock)
           {
              TextBlock cellContent = column.GetCellContent(r) as TextBlock;
              MessageBox.Show(cellContent.Text);
           }
       }
  }

Of course, you could also add a similar method to an CellValueChanged Event , to automate the process. Hope this helps :)