Hi,
      
    We are using Telerik Rad Date Picker control. When user is typing some invalid value say "Abc123" in text box rather than selecting date from calender, Textbox is getting red instead of giving any proper message and its also not allowing postback so that we can put custom validator. So, please suggest any solution that we would show proper error message.

Thanks
Srinivas Vangala 

Hi Srinivas,

 I would suggest you to take a look at the validation example in our online demos. The first look example also contains some helpful validation logic. This article could help you to customize the ToolTip of the RadDatePicker.

Hope this helps.

Regards,
Ventzi
Telerik