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 End-User Documentation

BaseView.BeginSelection Method

Prevents selection updates until the EndSelection or the CancelSelection method is called.

Namespace:DevExpress.XtraGrid.Views.Base
Assembly:DevExpress.XtraGrid.v17.1.dll

Expanded Syntax

Expanded Remarks

The BeginSelection method, paired with the EndSelection/CancelSelection method, allows you to improve the grid performance when successively selecting a batch of rows/cells in code. See the Multiple Row and Cell Selection topic, to learn about the methods to select and unselect rows and cells.

If not using the BeginSelection method, the View is updated and the ColumnView.SelectionChanged event fires after every single selection modification. The BeginSelection method, when called prior to changing the selection in code, suspends selection updates until the EndSelection or CancelSelection method is called.

The EndSelection and CancelSelection methods enable future selection updates, but unlike CancelSelection, the EndSelection method forces an immediate visual update and fires the ColumnView.SelectionChanged event.
Note

Each call of the BeginSelection method must correspond to a call of the EndSelection or the CancelSelection method. To ensure that EndSelection or CancelSelection is always called even if an exception occurs, use the try...finally statement.

Refer to the Multiple Row and Cell Selection document for more information on row selection. The Batch Modifications Overview topic provides more details on batch modifications.

Expanded See Also

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