How to remove the Check all option from RadComboBox

[jackson]

When there is no item in RadComboBox i did't want check all option.

<telerik:RadComboBox ID="RadComboBoxSites" runat="server"  OnClientItemChecking="OnClientItemChecking"  CheckBoxes="true"  EnableCheckAllItemsCheckBox="true" DataTextField="SiteName" DataValueField="SiteUid" AppendDataBoundItems="true" OnItemDataBound="RadComboBoxSites_ItemDataBound" DropDownWidth="250px"OnClientDropDownOpening="disableComboBoxSeparator;disableCheckall" EmptyMessage="Please select a site..." MaxHeight="192px">
</telerik:RadComboBox>

[Eyup]

Hi Jackson,

You can use the following approach to achieve this requirement:

protected void RadComboBox1_DataBound(object sender, EventArgs e)
{
    RadComboBox combo = sender as RadComboBox;
    combo.EnableCheckAllItemsCheckBox = combo.Items.Count > 0;
}

Hope this helps.

Regards,
Eyup
Telerik