Calendar DayRender event fires but doesn't update RadDateTimePicker

[Ahmed]

I use the following code for creating RadDateTimePicker control.

<telerik:RadDateTimePicker runat="server" ID="dtDate">
 <DateInput runat="server" ID="dtDateInput" DisplayDateFormat="MM/dd/yyyy hh:mm tt">
</DateInput></telerik:RadDateTimePicker>

Within Page_Load event, I use DayRender event of Calendar object of RadDateTimePicker control.

dtDate.Calendar.DayRender += new global::Telerik.Web.UI.Calendar.DayRenderEventHandler(Calendar_DayRender);

The following event run successfully, but doesn't update control, means days that match condition still enabled.

void Calendar_DayRender(object sender, global::Telerik.Web.UI.Calendar.DayRenderEventArgs e)

{

  DateTime dtCurrentDate = e.Day.Date;

  if (dtCurrentDate.Month == 2)

    {

       e.Cell.CssClass = "rcOutOfRange";

       e.Day.IsDisabled = true;          

  }

}

Any ideas how to resolve that issue?

[Shinu]

Hello Ahmed,

I have found this forum and code library discussed similar scenario.
disabling calendar weekend days
Disabling calendar days

Thanks,
Shinu.