Calling Date Input Validation Error

[Daniel]

Hi. I notice that if you input an incorrect date that the raddatepicker textbox highlights red with a yellow exclamation mark inside it. This is cool, especially when restricted for space. I have a requiredfieldvalidator that I would like to apply the same error to. Is there any way to call this from say javascript? Thanks.

Daniel

[Maria Ilieva]

Hi Daniel,

The highlighted red with a yellow exclamation mark inside it is actually a style called InvalidStyle in the RadDatePicker. You can apply it manually to your validator and calls it when the validation triggers. Please refer to the following help topic for more information on RadCalendar styles.

Kind regards,
Maria Ilieva
the Telerik team

[Daniel]

Hi Maria. Thanks for pointing me in right direction. Just in case anyone else needs to implement this, here's my code.

ASP.NET

<asp:CustomValidator ID="csStartDate" runat="server" ClientValidationFunction="clientValidate" ControlToValidate="rdpStart" ValidateEmptyText="true" ErrorMessage="" Display="None" ValidationGroup="vgLeave"></asp:CustomValidator>

JS

function clientValidate(sender, args) {
        if (args.Value.length <= 0) {
            args.IsValid = false;
            var datepicker = $find("<%=rdpStart.ClientID%>");
            datepicker.get_dateInput()._textBoxElement.className = "riTextBox riError";
        }
    }