Access to DataTemplate Control of WPF Toolkit DataGridCell at Runtime, How?
- by LukePet
I have a DataGrid defined with WPF Toolkit. The CellEditingTemplate of this DataGrid is associated at runtime with a custom function that build a FrameworkElementFactory element.
Now I have to access to control that is inserted inside DataTemplate of CellEditingTempleta, but I do not know how to do.
On web I found a useful ListView Helper...
public static class ListViewHelper
{
public static FrameworkElement GetElementFromCellTemplate(ListView listView, Int32 column, Int32 row, String name)
{
if (row >= listView.Items.Count || row < 0)
{
throw new ArgumentOutOfRangeException("row");
}
GridView gridView = listView.View as GridView;
if (gridView == null)
{
return null;
}
if (column >= gridView.Columns.Count || column < 0)
{
throw new ArgumentOutOfRangeException("column");
}
ListViewItem item = listView.ItemContainerGenerator.ContainerFromItem(listView.Items[row]) as ListViewItem;
if (item != null)
{
GridViewRowPresenter rowPresenter = GetFrameworkElementByName<GridViewRowPresenter>(item);
if (rowPresenter != null)
{
ContentPresenter templatedParent = VisualTreeHelper.GetChild(rowPresenter, column) as ContentPresenter;
DataTemplate dataTemplate = gridView.Columns[column].CellTemplate;
if (dataTemplate != null && templatedParent != null)
{
return dataTemplate.FindName(name, templatedParent) as FrameworkElement;
}
}
}
return null;
}
private static T GetFrameworkElementByName<T>(FrameworkElement referenceElement) where T : FrameworkElement
{
FrameworkElement child = null;
for (Int32 i = 0; i < VisualTreeHelper.GetChildrenCount(referenceElement); i++)
{
child = VisualTreeHelper.GetChild(referenceElement, i) as FrameworkElement;
System.Diagnostics.Debug.WriteLine(child);
if (child != null && child.GetType() == typeof(T))
{
break;
}
else if (child != null)
{
child = GetFrameworkElementByName<T>(child);
if (child != null && child.GetType() == typeof(T))
{
break;
}
}
}
return child as T;
}
}
this code work with the ListView object but not with the DataGrid object.
How can use something like this in DataGrid?
