telerik datepicker getting error on deleting the date

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Hi I have a telerik datepicker as below:

C#

<div class="sxlb">
                               <asp:Label ID="lblLastBackgroundCheckedDate" runat="server" AssociatedControlID="dpLastBackgroundCheckedDate"
                                   Text="Last Background Checked Date"></asp:Label></div>
                           <div class="sxlm">
                               <lpsfs:SysXDatePicker  runat="server" ID="dpLastBackgroundCheckedDate" DateInput-ReadOnly="true"
                                   DateInput-DateFormat="MM-dd-yyyy" Width="99%">
                                   <ClientEvents  önPopupClosing="FocusOnPopUpButton" />
                                   <Calendar ID="calLastBackgroundCheckedDat"  runat="server" EnableKeyboardNavigation="true"
                                       CausesValidation="false">
                                   </Calendar>
                               </lpsfs:SysXDatePicker>
                               <div class="vldx">
                                   <asp:CompareValidator ID="cmpLastBackgroundCheckedDate" ControlToValidate="dpLastBackgroundCheckedDate"
                                       class="errmsg" ValidationGroup="grpSupplierInformation" Operator="LessThanEqual"
                                       Display="Dynamic" ValueToCompare='<%# DateTime.Today.ToShortDateString() %>'
                                       Type="Date" runat="server" ErrorMessage='<%#SysXUtils.GetMessage(ResourceConst.SUPPLIER_INFORMATION_LAST_BACKGROUND_CHECKED_DATE) %>'></asp:CompareValidator>
                               </div>
                           </div>

now if i press backspace on this,it is not working,
I tried to do the below thing::

C#

DateInput-ReadOnly="false"
EnableKeyboardNavigation="false"

but if i do this then,if the user enters alphabet or Chars like -,/ it is giving error.
I want that user cannot enter the date on its own,he has to pick it from the calender.
any help would be deeply regarded.

Posted 27-Nov-12 20:23pm

pree_kh

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pree_kh · Accepted Answer · 2012-11-28T00:39:00

Solved it by masking the control :

ASP:

<telerik:RadDatePicker ... DateInput-ClientEvents-OnKeyPress="KeyPress">

JavaScript:

XML

<script type="text/javascript">
  function KeyPress(sender, eventArgs) {
     var keyPressed = eventArgs.get_keyCode();
     if ((keyPressed > 64 && keyPressed < 91)
        || (keyPressed > 96 && keyPressed < 123)) {
         eventArgs.set_cancel(true)
     }
  }
</script>

Quote:
Note that you can disable additional keyboard keys by using their ASCII code as showed in the example.(65-90 for capitalized letters and 97-122 for small letters).