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 End-User Documentation

ColumnView.SelectedRowsCount Property

Gets the number of selected rows (cards).

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

Expanded Syntax

Property value

Type: Int32
An integer value indicating the number of selected rows (cards).

Expanded Remarks

If a single row (card) is selected, the SelectedRowsCount property returns 1 and the selected row (card) matches the focused row (card). Thus, you can access the selected row's handle using the FocusedRowHandle property. If the selected row is invalid, this method returns 0. Use the GridView.IsValidRowHandle method to identify whether the row is valid.

If several rows (cards) are selected, use the GetSelectedRows method to obtain the handles of the selected rows (cards).

Note that multiple row selection is allowed only when the ColumnViewOptionsSelection.MultiSelect property is set to true.

Note

Detail pattern Views do not contain data and they are never displayed within XtraGrid. So, the SelectedRowsCount member must not be invoked for these Views. The SelectedRowsCount member can only be used with real Views that are displayed within the Grid Control. The real Views with which an end-user interacts at runtime can be accessed using the following methods.

Expanded Example

This example demonstrates how to obtain selected rows and then change their field values. The handles of selected rows are retrieved by the GetSelectedRows method. Since row handles reflect the order in which rows are displayed within a View, modifying a single row may affect the handles of other rows (e.g., if data is sorted and/or filtered). To prevent possible data corruption, a target row is modified using an underlying record object (in this example, a DataRow object). DataRows that correspond to selected rows are retrieved using the GetDataRow method and are stored in an array prior to data modification.

Bear in mind that when updating multiple rows, Grid View is updated after every row modification. So, to prevent unnecessary updates, you should enclose your code within calls to the BaseView.BeginUpdate and BaseView.EndUpdate methods. Refer to the Batch Modifications Overview document for details.

Expanded See Also

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