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hello everyone,i am using datetimepiker to pick date and time ,i want to check start date should not greater than end date and Date time Validation in

my datetime format is like this-2014-01-08 11:26

i am also using compare validation but not working

<asp:CompareValidator ValidationGroup="examvalidation" ID="cmpVal1" ControlToCompare="txtstarttime"
                                                   ControlToValidate="txtendttime" Type="Date" Operator="GreaterThanEqual" ForeColor="Red"
                                                   ErrorMessage="Start date should not greater than end date" runat="server"></asp:CompareValidator>

please help me

1 solution

Upto my knowledge,you cant check the datetime format in compare validator,but you can check if only,better
use custom validator

protected void DateTimeComparision_ServerValidate(object source, ServerValidateEventArgs args)
        args.IsValid = Convert.ToDateTime(txtStartDate.Text) < Convert.ToDateTime(txtFinishDate.Text);

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