How to Set back to old Date when using RadDatePicker

[Akki]

Hi,

I have used a 2 RadDatepicker controls, one for start date and one for end date.
When End Date is less than start date, i am triggering an error message But the problem is once i come back from error message
EndDate would still have new Date which i picked.. How can i set it back to original Date ??

Ex: Start Date : 1/1/1999  End Date 1/1/2000
I will Modify Modify  Start Date : 1/1/1999 End Date  1/1/1998

Now End Date should not be 1/1/1998 , it should be set back to 1/1/2000 on error.


below is code

  <telerik:GridTemplateColumn HeaderText="Start" UniqueName="fispersrt" DataField="fispersrt"
                                Visible="true">
                                <ItemTemplate>
                                    <telerik:RadDatePicker ID="rdDtStrtpkr" runat="server" SelectedDate='<%#Eval("fispersrt")%>'
                                        Width="100%" CssClass="txtbx" onchange="javascript:return DirtyFlagUpdate()">
                                        <ClientEvents OnDateSelected="OnDateSelected" />
                                    </telerik:RadDatePicker>
                                </ItemTemplate>
</telerik:GridTemplateColumn
<telerik:GridTemplateColumn HeaderText="End" UniqueName="fisperend" DataField="fisperend"
                                Visible="true">
                                <ItemTemplate>
                                    <telerik:RadDatePicker ID="rdDtEndpkr" runat="server" SelectedDate='<%#Eval("fisperend")%>'
                                        Width="100%" CssClass="txtbx" onchange="javascript:return DirtyFlagUpdate()">
                                        <ClientEvents OnDateSelected="OnDateSelected" />

                                    </telerik:RadDatePicker>
                                </ItemTemplate>
  </telerik:GridTemplateColumn>

  function OnDateSelected(sender, e) {
            if (e.get_newDate() < e.get_oldDate()) {
                DisplayErrorMessage('ERRSA20404', 'Error');

            }
        }

Regards,
Akki

[Eyup]

Hello Akki,

Attached you will find a sample RadGrid web site where the requested functionality is demonstrated. Please check out the provided application and try to make best avail out of it.

Greetings,

Eyup
the Telerik team