Hi Dustyn,

As far as making a cell enabled or disabled (ReadOnly) at runtime, the following example will definitely suit your requirements. But to change a cell's EditTemplate at runtime does not seems to be an easy task as EditTemplate property belongs to the entire column and not just a single cell.

Anywayz have a look at the following example that is written purely for your need. Do let me know if it helped or not.

        <xcdg:DataGridControl
            x:Name="myGrid">
            <xcdg:DataGridControl.Columns>
                <xcdg:Column FieldName="Shade" Title="Shade of My Car"/>
                <xcdg:Column FieldName="Tyres" Title="Tyres Supported" CellEditorDisplayConditions="Always">
                    <xcdg:Column.CellEditor>
                        <xcdg:CellEditor>
                            <xcdg:CellEditor.EditTemplate>
                                <DataTemplate>
                                    <ComboBox
                                        ItemsSource="{xcdg:CellEditorBinding}"
                                        SelectedIndex="0"
                                        SelectionChanged="ComboBox_SelectionChanged"
                                    />
                                </DataTemplate>
                            </xcdg:CellEditor.EditTemplate>
                        </xcdg:CellEditor>
                    </xcdg:Column.CellEditor>
                </xcdg:Column>
                <xcdg:Column FieldName="Cost" Title="Price"/>
            </xcdg:DataGridControl.Columns>
        </xcdg:DataGridControl>

private void ComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
     ComboBox cb = (ComboBox)sender;
     Xceed.Wpf.DataGrid.DataRow row = GetDataRow(sender);
     if (row != null)
     {
          if (cb.SelectedIndex == 1)//If the selected tyre is "ALPHA"
          {
               row.Cells["Cost"].Background = new SolidColorBrush(Colors.Gray);
               row.Cells["Cost"].ReadOnly = true;
          }
          else //Anything else
          {
               row.Cells["Cost"].Background = new SolidColorBrush(Colors.Transparent);
               row.Cells["Cost"].ReadOnly = false;
          }
     }
}

public Xceed.Wpf.DataGrid.DataRow GetDataRow(object obj)
{
     Xceed.Wpf.DataGrid.DataRow retVal = null; // if not found, return null
     try
     {
          if (obj is DependencyObject)// Must be a DependencyObject
          {
               DependencyObject dobj = (DependencyObject)obj;
               if (dobj is Xceed.Wpf.DataGrid.DataRow)// if we have a DataRow, return it.
               {
                    retVal = (Xceed.Wpf.DataGrid.DataRow)dobj;
               }
               else
               {
                    // Check the parant since this isn't a DataRow
                    DependencyObject parent = VisualTreeHelper.GetParent(dobj);
                    if (parent != null)
                    {
                         retVal = this.GetDataRow(parent);// if parent exist, call itself with parent.
                    }
               }
           }
      }
      catch (Exception ex)
      {
          System.Diagnostics.Debug.Print(ex.Message);
      }
      return retVal;
}

 

Regards, 

---

Abdullah Ansari
Senior Software Engineer
Outworks Solutions Private Limited

Everything is okay in the end. If its not okay, then its not the end.