# C1.WPF.FlexGrid.C1FlexGrid.GroupRowPosition ## Content

GroupRowPosition Property

GroupRowPosition

Gets or sets a value that indicates where group rows should be displayed with respect to the data.

Declaration
public GroupRowPosition GroupRowPosition { get; set; }
Public Property GroupRowPosition As GroupRowPosition
Remarks
<p>Groups are created by data sources that implement the <xref href="System.ComponentModel.ICollectionView" data-throw-if-not-resolved="false"></xref>

interface.

To create groups, start by creating a data source object that implements ICollectionView (such as PagedCollectionView in Silverlight or ListCollectionView in WPF), then add PropertyGroupDescription objects to the data source's GroupDescriptions collection.

Once the groups have been defined, the data source will automatically create and maintain them, and the C1FlexGrid will display the results.

Examples

The code below creates a data source with grouping and binds it to a C1FlexGrid.

// create PagedCollectionView used as a data source 
var data = new ObservableCollection<Customer>();
for (int i = 0; i < 10; i++)
{
  data.Add(new Customer(i));
}
var view = new PagedCollectionView(data);
using (view.DeferRefresh())
{
    view.GroupDescriptions.Clear();
    view.GroupDescriptions.Add(new PropertyGroupDescription("Country"));
    view.GroupDescriptions.Add(new PropertyGroupDescription("Active"));
}

// bind grid to data source 
_flex.ItemsSource = view;

// show group rows above the data
_flex.GroupRowPosition = GroupRowPosition.AboveData;