title: Accessing row items in DataGrid_LoadingRow eventhandler
body: <p>I am trying to assign different tooltips to DataGrid rows according to certain conditions.</p>
  
  <pre><code>private void DataGrid_LoadingRow(object sender, DataGridRowEventArgs e)
      {
          DataGridRow row = e.Row;
  
          if (row["AssemblySummary"].ToString.Contains("Class"))
          {
              row.ToolTip = "Class definition...";
          }
  
      }
  </code></pre>
  
  <p>I am getting "Cannot apply indexing to an expression of type 'System.Windows.Controls.DataGridRow'." If i have a row why cannot i access its items? How to access cell[i]?</p>
  
  <p>Edit made: I am verry sorry, I needed to access first cell in the given row like it is done now. I still have the same error. Thank you</p>