Invalid state

[Jerome]

Is there anyway to set the RadComboBox into an invalid state, like RadInput? I'd like a similar rendering mode, with a little yellow warning sign, and such.

[Ivana]

Hi Jerome,

The desired behavior is not a built-in functionality of the RadComboBox. A similar scenario, however, could be achieved with JavaScript / jQuery.

The following code-block shows such a functionality. On RadComboBox's blur it checks if there is an item which text equals the text typed in the input filed, in case such an item is not found, a caution sigh shows on its right side:

function clientBlur(sender, args)

{

    var text = sender.get_text();

    var item = sender.findItemByText(text);

    var input = sender.get_inputDomElement();

    if (item == null)

    {              

        input.style.background = "URL('Images/caution.png') top right no-repeat";

    } else

    {

        input.style.background = "";

    }

}

<telerik:RadComboBox ID="RadComboBox1" runat="server" AllowCustomText="true" OnClientBlur="clientBlur">
    <Items>
        <telerik:RadComboBoxItem runat="server" Text="item1" />
        <telerik:RadComboBoxItem runat="server" Text="item2" />
        <telerik:RadComboBoxItem runat="server" Text="item3" />
    </Items>
</telerik:RadComboBox>

I hope this helps.

All the best,
Ivana
the Telerik team

[Jerome]

Figured as much.

So, I think it'd be awesome if ya'll were to add this. And of course, add the default styles for such into the built-in themes. Red border, etc.