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GridView.MasterRowGetChildList Event

Enables you to supply detail data manually.

Namespace: DevExpress.XtraGrid.Views.Grid

Assembly: DevExpress.XtraGrid.v24.1.dll

NuGet Packages: DevExpress.Win.Grid, DevExpress.Win.Navigation


public event MasterRowGetChildListEventHandler MasterRowGetChildList

Event Data

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

Property Description
ChildList Gets or sets a detail clone’s record list.
RelationIndex Gets the relation index that identifies the affected detail. Inherited from CustomMasterRowEventArgs.
RowHandle Gets the handle of the currently processed master row in the current View. Inherited from CustomMasterRowEventArgs.


The MasterRowGetChildList event is raised when a particular detail is about to be created. The event’s e.RowHandle and e.RelationIndex parameters identify the detail. To supply custom detail data, use the e.ChildList parameter.

Handle the MasterRowGetChildList event to do the following:

gridView.MasterRowGetChildList += (s, e) => {
    e.ChildList = e.RelationIndex == 0 ? SampleData1.GetData().ToList() : SampleData2.GetData().ToList();


The MasterRowGetChildList event may fire multiple times for a single row during an application run. In specific instances, the MasterRowGetChildList event fires twice when a master row is expanded. If you implement lengthy operations within this event and this affects performance, we recommend you cache data.

Read the following topic for detailed information and examples: Working with Master-Detail Relationships in Code.

See Also