Question

I am having problem loading data into Nested datagrid. When the user clicks on a row in parent datagrid, The id is retrieved and based on that the nested datagrid is loaded.

In the rowDetailsVisibilityChanged event.

        DataGrid nestedDataGrid = e.DetailsElement as DataGrid;

        SampleObj data= e.Row.DataContext as SampleObj ;

        var client = new MyService.SampleServiceClient();
        client.GetReportArchiveDataCompleted += GetSampleDataCompleted;
        client.GetSampleDataAsync(data);

How can I add this line in Asyn completed event as I am not able to get the nested Datagrid in completed event.

IEnumerable dataList= e.Result;
nestedDataGrid.ItemSource = dataList

Answer 1

use an anonymous function instead….

client.GetReportArchiveDataCompleted += 
  delegate(object sender1, GetReportArchiveDataCompletedArgs e1) {
    nestedDataGrid.ItemSource=(IEnumerable)e1.Result;
  };

Obviously change the delegate to the correct signature (same as your GetSampleDataCompleted.