MasterRowCanExpandEventArgs Class

Provides data for the GridView.MasterRowExpanding and GridView.MasterRowCollapsing events.

Namespace: DevExpress.XtraGrid.Views.Grid

Assembly: DevExpress.XtraGrid.v17.2.dll

Declaration

C#

public class MasterRowCanExpandEventArgs :
    CustomMasterRowEventArgs

VB.NET

Public Class MasterRowCanExpandEventArgs
    Inherits CustomMasterRowEventArgs

Related API Members

MasterRowCanExpandEventArgs is the data class for the following events:

• GridView.MasterRowCollapsing
• GridView.MasterRowExpanding

Remarks

The GridView.MasterRowExpanding and GridView.MasterRowCollapsing events fire when attempting to expand or collapse a master row. MasterRowCanExpandEventArgs class properties allow you to identify the master row whose expanded state is about to be changed and the relation index specifying which detail’s visible state is affected. You can analyze these values to specify whether the action is allowed. To prohibit changing the master row’s expanding state, set the MasterRowCanExpandEventArgs.Allow property to false.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the MasterRowCanExpandEventArgs 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-show-a-treelistat-the-grids-detail-level-e2064/CS/Form1.cs#L96

private void gridView1_MasterRowCollapsing(object sender, MasterRowCanExpandEventArgs e)
{

VB.NET

how-to-show-a-treelistat-the-grids-detail-level-e2064/VB/Form1.vb#L86

Private Sub gridView1_MasterRowCollapsing(ByVal sender As Object, ByVal e As MasterRowCanExpandEventArgs) Handles gridView1.MasterRowCollapsing
    tree.Tag = Nothing

Inheritance

Object

EventArgs

CustomMasterRowEventArgs

MasterRowCanExpandEventArgs