title: Master/Detail DataGrid. How to access Detail DataGrid to set ItemsSource?
body: <p>In a typical Master/Detail situation...</p>
  
  <p>I have a DataGrid. The ItemsSource of this DataGrid is set in the Completed event of a WCF call - (grdMaster.ItemsSource = e.Result) - where the x:Name of the grid is grdMaster. This is all 100%.</p>
  
  <p>However, when adding a Detail Datagrid inside the master grids DataTemplate and naming it appropriately... my codebehind does not recognise the detail grid. So plainly put, I cannot set the ItemsSource of grdDetail like I do with grdMaster.</p>
  
  <p>Depending on the Master item selected, I need to do a WCF call to get the appropriate Details.</p>