This is the markup for 2 Rad combo boxes with Checkboes enabled
<td><telerik:RadComboBox ID="ddlCustomer" Runat="server" Width="245px" EnableEmbeddedSkins="false" Skin="Activity" CheckBoxes="true" AutoPostBack="true"></telerik:RadComboBox></td>
<td><telerik:RadComboBox ID="ddlLocation" Runat="server" Width="185px" EnableEmbeddedSkins="false" Skin="Activity" CheckBoxes="true" AutoPostBack="true"></telerik:RadComboBox></td>
These checkboxes are passed back to be parameters a data class to populate a Rad Grid.
In the Radgrid I have a column
<telerik:GridTemplateColumn HeaderText="Arrival" SortExpression="LocationArrival" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center" AllowFiltering="false" UniqueName="LocationArrival">
<ItemTemplate>
<asp:CheckBox ID="chkLocationArrival" runat="server" AutoPostBack="True" OnCheckedChanged="chkLocationArrival_CheckedChanged"/>
</ItemTemplate>
</telerik:GridTemplateColumn>
If the Checkboxes = true is enabled the postbask fails and the chkLocationArrival_CheckedChanged never runs.
Whats going on
Andy