DataGrid.ExpandRowGroup Method
Silverlight
Expands data grid row groups.
Namespace: System.Windows.Controls
Assembly: System.Windows.Controls.Data (in System.Windows.Controls.Data.dll)
public void ExpandRowGroup( CollectionViewGroup collectionViewGroup, bool expandAllSubgroups )
Parameters
- collectionViewGroup
- Type: System.Windows.Data.CollectionViewGroup
The data in the row group.
- expandAllSubgroups
- Type: System.Boolean
true to expand all subgroups of the row group; otherwise, false.
You can call this method to programmatically expand row groups in a DataGrid control that contains grouped data. You can use the GetGroupFromItem method to get the particular group that a specified item belongs to. Alternatively, you can iterate through the Groups collection to expand all row groups.
The following example demonstrates how to expand all row groups in a DataGrid control. This example is part of a larger example available in the How to: Group, Sort, and Filter Data in the DataGrid Control topic.
private void ExpandButton_Click(object sender, RoutedEventArgs e) { PagedCollectionView pcv = dataGrid1.ItemsSource as PagedCollectionView; try { foreach (CollectionViewGroup group in pcv.Groups) { dataGrid1.ExpandRowGroup(group, true); } } catch (Exception ex) { // Could not expand group. MessageBox.Show(ex.Message); } }
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
