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To manage selection in code, you can call the Select* and Deselect* methods. Refer to the Grid’s member table for the list of available methods.
The Grid compares and identifies data items to ensure correct selection operations. If your data object has a primary key, assign it to the KeyFieldName or KeyFieldNames property. Otherwise, the Grid uses standard .NET value equality comparison to identify data items.
The default SelectionMode property value (GridSelectionMode.Multiple) specifies that multiple Grid rows can be selected simultaneously. Implement two-way binding for the SelectedDataItems property to specify and access data items that correspond to selected rows.
To select a range of rows, a user can click the first row in the range, hold down the Shift key, and click the last row in the range. To add a row to or remove a row from a selection, a user should hold down the Ctrl key and click that row. On touch devices, use long press gestures to select multiple rows.
In multiple selection mode, the selection column displays checkboxes. Users can select individual rows or click the Select All checkbox in the column header to select or deselect all rows on the current page or on all grid pages depending on the SelectAllCheckboxMode property value.
Set the SelectionMode property to GridSelectionMode.Single to enable single row selection. Implement two-way binding for the SelectedDataItem property to specify and access the data item that corresponds to the selected row.
If you set the AllowSelectRowByClick property to true, users can select only one row by a mouse click. The selection column displays radio buttons in this mode.
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