RowAllowEventArgs Class

Provides data for the GridControl.GroupRowExpanding and GridControl.GroupRowCollapsing events.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v17.2.dll

Declaration

C#

public class RowAllowEventArgs :
    RowEventArgs

VB.NET

Public Class RowAllowEventArgs
    Inherits RowEventArgs

Related API Members

RowAllowEventArgs is the data class for the following events:

• GridControl.GroupRowCollapsing
• GridControl.GroupRowExpanding
• GridControl.MasterRowCollapsing
• GridControl.MasterRowExpanding

Remarks

The GridControl.GroupRowExpanding and GridControl.GroupRowCollapsing events occur when a group row is about to be expanded or collapsed, allowing cancellation of the action.

To cancel the action, set the event parameter’s RowAllowEventArgs.Allow property to false. The processed row is returned by the RowEventArgs.Row property. Its handle is returned by the RowEventArgs.RowHandle property.

To learn more, see Expanding and Collapsing Group Rows.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the RowAllowEventArgs class.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-select-all-group-subitems-when-a-group-row-is-clicked-wpf-e4617/CS/GridGroupSelect/GroupChildSelector.cs#L23

}
static void OnGroupRowExpanding(object sender, RowAllowEventArgs e) {
    var grid = (GridControl)sender;

how-to-prevent-group-rows-from-being-collapsed-e2024/CS/DXGrid_PreventGroupRowFromCollapsing/Window1.xaml.cs#L11

}
private void gridControl1_GroupRowCollapsing(object sender, RowAllowEventArgs e) {
    if (e.Row == null || ((Invoice)e.Row).Status == InvoiceStatus.Invalidated && colStatus.GroupIndex != -1)

how-to-prevent-group-rows-from-being-expanded-e2025/CS/DXGrid_PreventGroupRowsFromExpanding/Window1.xaml.cs#L11

}
private void gridControl1_GroupRowExpanding(object sender, RowAllowEventArgs e) {
    if ( e.Row == null ||

VB.NET

how-to-select-all-group-subitems-when-a-group-row-is-clicked-wpf-e4617/VB/GridGroupSelect/GroupChildSelector.vb#L27

End Sub
Private Shared Sub OnGroupRowExpanding(ByVal sender As Object, ByVal e As RowAllowEventArgs)
    Dim grid = DirectCast(sender, GridControl)

how-to-prevent-group-rows-from-being-collapsed-e2024/VB/DXGrid_PreventGroupRowFromCollapsing/Window1.xaml.vb#L13

End Sub
Private Sub gridControl1_GroupRowCollapsing(ByVal sender As Object, ByVal e As RowAllowEventArgs)
    If e.Row Is Nothing OrElse CType(e.Row, Invoice).Status = InvoiceStatus.Invalidated AndAlso colStatus.GroupIndex <> -1 Then

how-to-prevent-group-rows-from-being-expanded-e2025/VB/DXGrid_PreventGroupRowsFromExpanding/Window1.xaml.vb#L13

End Sub
Private Sub gridControl1_GroupRowExpanding(ByVal sender As Object, ByVal e As RowAllowEventArgs)
    If e.Row Is Nothing OrElse CType(e.Row, Invoice).Status = InvoiceStatus.Invalidated AndAlso colStatus.GroupIndex <> -1 Then

Inheritance

Object

EventArgs

RoutedEventArgs

RowEventArgs

RowAllowEventArgs