FlexGrid, by default, allows to select a continuous batch of cells using mouse or keyboard and entire row or column by clicking the corresponding header. However, the default behavior can be changed to allow selection in units of cell, row, column etc. by using SelectionMode property of the C1GridControl class. The property accepts values from the GridSelectionMode enumeration. The following table gives a quick snapshot of how selection looks like in each of these modes.

Value	Description	Snapshot
None	Disables selection of cells in FlexGrid control.
Cell	Allows selection of single cell at a time.
CellRange	Allows selection of continuous batch of cells using mouse or keyboard.
Column	Allows selection of single column at a time.
ColumnRange	Allows selection of multiple contiguous columns at a time.
Row	Allows selection of single row at a time.
RowRange	Allows selection of multiple contiguous rows at a time.
MultiRange	Allows selection of collection of ranges.
ListBox	Allows selection of non-contiguous rows by ctrl+clicking.
MultiColumns	Allows selection of non-contiguous columns by ctrl+clicking.

The following code shows how to set selection for a cell range using the SelectionMode property. This example uses the sample created in the Quick Start topic.

<c1:FlexGrid x:Name="grid" AutoGenerateColumns="False" SelectionMode="CellRange">
    <c1:FlexGrid.Columns>
        <c1:GridColumn Binding="FirstName" />
        <c1:GridColumn Binding="LastName" />
        <c1:GridColumn Binding="City"/>
        <c1:GridColumn Binding="Country"/>
        <c1:GridColumn Binding="Active"/>
    </c1:FlexGrid.Columns>
</c1:FlexGrid>

// set the selection mode
grid.SelectionMode = GridSelectionMode.CellRange;