GridControl.IsGroupRowHandle(Int32) Method

Indicates whether the specified handle corresponds to a group row.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v22.1.dll

Declaration

C#

public bool IsGroupRowHandle(
    int rowHandle
)

VB.NET

Public Function IsGroupRowHandle(
    rowHandle As Integer
) As Boolean

Parameters

Name	Type	Description
rowHandle	Int32	An integer value that specifies the row’s handle.

Returns

Type	Description
Boolean	true if the specified handle corresponds to a group row; otherwise, false.

Remarks

Group row handles are negative (start from -1). The IsGroupRowHandle method returns false, if the specified handle corresponds to a data row or invalid row.

To learn more, see Grouping and Identifying Rows and Cards.

Example

The following example demonstrates how to use the TableView.RowDoubleClick event to process double-clicks:

View Example: How to Handle Row Double-clicks

MainWindow.xaml

<dxg:GridControl x:Name="grid">
<!-- ... -->
    <dxg:GridControl.View>
        <dxg:TableView RowDoubleClick="OnRowDoubleClick"/>
    </dxg:GridControl.View>
</dxg:GridControl>

MainWindow.xaml.cs

void OnRowDoubleClick(object sender, RowDoubleClickEventArgs e) {
    int rowHandle = e.HitInfo.RowHandle;
    if(rowHandle == GridControl.InvalidRowHandle)
        return;
    if(grid.IsGroupRowHandle(rowHandle))
        MessageBox.Show("A group row has been double clicked.", "Info");
    else
        MessageBox.Show("A data row has been double clicked.", "Info");
}

MainWindow.xaml.vb

Private Sub OnRowDoubleClick(ByVal sender As Object, ByVal e As RowDoubleClickEventArgs)
    Dim rowHandle As Integer = e.HitInfo.RowHandle
    If rowHandle = GridControl.InvalidRowHandle Then
        Return
    End If
    If grid.IsGroupRowHandle(rowHandle) Then
        MessageBox.Show("A group row has been double clicked.", "Info")
    Else
        MessageBox.Show("A data row has been double clicked.", "Info")
    End If
End Sub