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V24.1

ColumnView.SelectionChanging Event

Allows you to specify whether users can select and unselect rows.

Namespace: DevExpress.XtraGrid.Views.Base

Assembly: DevExpress.XtraGrid.v24.1.dll

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

Declaration

[DXCategory("Property Changed")]
public event SelectionChangingEventHandler SelectionChanging

Event Data

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

Property Description
Action Gets an action that describes how the collection of selected rows is about to change.
Cancel Gets or sets a value indicating whether the event should be canceled. Inherited from CancelEventArgs.
ControllerRow Gets the processed row handle.

Remarks

The SelectionChanging event is raised in multiple selection mode before a user selects/unselects a row (rows). This event allows you to cancel the action.

The following code sample does not allow users to select the first 5 rows:

gridView1.SelectionChanging += (s, e) => {
    e.Cancel = e.Action == CollectionChangeAction.Add && e.ControllerRow <= 4;
};
See Also