Grid Lookup for ASP.NET Web Forms - How to enable multiple selection

This example demonstrates how to create a command column and enable multiple selection mode.

Overview

Follow the steps below to enable multiple selection in a grid control:

1. Enable a command column's ShowSelectCheckbox property and set the SelectAllCheckboxMode property to AllPages to select and deselect all records on all grid pages.

2. Set the grid's SelectionMode property to Miltiple.

<dx:ASPxGridLookup ID="gridLookup" runat="server" SelectionMode="Multiple" ...>
    <Columns>
        <dx:GridViewCommandColumn ShowSelectCheckbox="True" SelectAllCheckboxMode="AllPages" />
        <!-- ... -->
    </Columns>
    <!-- ... -->
</dx:ASPxGridLookup>

Files to Review

• Default.aspx (VB: Default.aspx)
• Default.aspx.cs (VB: Default.aspx.vb)

Documentation

• Grid Selection
• Selection Modes

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