Hello Sir,

I used the DatePicker control to accept 2 input dates and validate the logic as your example but I would like to know how can I set focus on the error DatePicker from client side. I can use document.all["<%=ddl_item.ClientID%>"].focus() to set focus on any object of ASP.net control. How can I set focus on EO control from client side?

Sorry that it seems my question is not clear. I would like to have a validation for DatePicker control in the client side and doubt that how can I set focus on the DatePicker after the validation. Can you show my how to set focus back to DatePicker control? Thank you.

Hello Sir,

I tried as following:

if (startDate.valueOf() > endDate.valueOf())
{
errorDiv.innerHTML = "The start date must be before the end date.";
eo_GetObject("<%=StartDatePicker.ClientID%>").focus();
return false;
}

It works. Thank you.