Making the input field of RadMultiColumnCombobox readonly

Environment

Product

RadMenu for ASP.NET AJAX

Description

See how to make the RadMultiColumnCombobox textbox read-only while keeping the dropdown selection functionality operational.

Solution

The solution shows how to get a reference to the textbox and set its readonly attribute:

ASPX

    <script>
        function OnClientLoad(sender, args) {
                $telerik.$(".k-input")[0].setAttribute("readonly", "true");
        }
    </script>
    <telerik:RadMultiColumnComboBox ClientEvents-OnLoad="OnClientLoad" runat="server" ID="RadMultiColumnComboBox3"
        DataTextField="ShipName" DataValueField="OrderID" DataSourceID="SqlDataSource1"
        Width="100%" DropDownWidth="600">
        <ColumnsCollection>
            <telerik:MultiColumnComboBoxColumn Field="OrderID" Title="OrderID" />
            <telerik:MultiColumnComboBoxColumn Field="Freight" Title="Freight" />
            <telerik:MultiColumnComboBoxColumn Field="ShipName" Title="ShipName" />
        </ColumnsCollection>
        <PopupSettings />
    </telerik:RadMultiColumnComboBox>