GridControl.MasterRowCollapsed Event

Fires immediately after a master row has been collapsed.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v22.2.dll

NuGet Package: DevExpress.Wpf.Grid.Core

Declaration

C#

public event RowEventHandler MasterRowCollapsed

VB.NET

Public Event MasterRowCollapsed As RowEventHandler

Event Data

The MasterRowCollapsed event's data class is RowEventArgs. The following properties provide information specific to this event:

Property	Description
Handled	Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. Inherited from RoutedEventArgs.
OriginalSource	Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs.
RoutedEvent	Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs.
Row	Gets the processed row.
RowHandle	Gets the processed row’s handle.
Source	Gets the View that raised the event.

The event data class exposes the following methods:

Method	Description
InvokeEventHandler(Delegate, Object)	When overridden in a derived class, provides a way to invoke event handlers in a type-specific way, which can increase efficiency over the base implementation. Inherited from RoutedEventArgs.
OnSetSource(Object)	When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes. Inherited from RoutedEventArgs.

Remarks

Use the MasterRowCollapsed and GridControl.MasterRowExpanded events to perform additional processing after a master row has been collapsed or expanded.

To specify whether an individual row can be collapsed or expanded, handle the GridControl.MasterRowCollapsing and GridControl.MasterRowExpanding events respectively.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the MasterRowCollapsed event.

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-control-the-master-row-expansion-from-the-view-model-in-the-master-detail-grid-e3834/CS/WPFDataGridApp15/MVVMHelper/MasterDetailMVVMHelper.cs#L118

if(TargetControl != null) {
    TargetControl.MasterRowCollapsed -= TargetControl_MasterRowCollapsed;
    TargetControl.MasterRowExpanded -= TargetControl_MasterRowExpanded;

VB.NET

how-to-control-the-master-row-expansion-from-the-view-model-in-the-master-detail-grid-e3834/VB/WPFDataGridApp15/MVVMHelper/MasterDetailMVVMHelper.vb#L109

If TargetControl IsNot Nothing Then
    RemoveHandler TargetControl.MasterRowCollapsed, AddressOf TargetControl_MasterRowCollapsed
    RemoveHandler TargetControl.MasterRowExpanded, AddressOf TargetControl_MasterRowExpanded