I need to end time must be greater than start time

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I am having a start time,end time on my web page.
I need to end time must be greater than start time and start time is current time& end time is user entry using Masked Extender
.How can I achieve this validation?

Posted 27-Feb-13 19:06pm

rosren

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**Orcun Iyigun** · Answer 1 · 2013-02-27T19:20:00

You can use:

C#

<asp:Textbox runat="server" ID="TextBox1" />
<asp:CustomValidator runat="server" ControlToValidate="TextBox1" ErrorMessage="Date was in incorrect format" OnServerValidate="CustomValidator1_ServerValidate" />

Code behind:

C#

protected void CustomValidator1_ServerValidate(object sender, ServerValidateEventArgs e)
{
    DateTime d;
    e.IsValid = DateTime.TryParseExact(e.Value, new[] { "dd/MM/yyyy", "yyyy-MM-dd" }, CultureInfo.InvariantCulture, DateTimeStyles.None, out d);
}

==OR==

C#

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    <asp:CompareValidator ID="DateValidator" runat="server" Operator="DataTypeCheck"
        Type="Date" ControlToValidate="TextBox1" ErrorMessage="Bad format" />

Good luck,
OI

Varun_Kumar · Answer 2 · 2013-02-27T19:11:00

Solution 1

Use

<asp:comparevalidator></asp:comparevalidator>

to validate your dates

Posted 27-Feb-13 19:11pm

Varun_Kumar

Updated 27-Feb-13 19:13pm

v2

Member 11264608 · Answer 3 · 2015-05-22T01:56:00

VB

<asp:CustomValidator ID="cstmvEndDate" ControlToValidate="txtEndTime" ClientValidationFunction="compareTime" Display="Dynamic" ErrorMessage="End time should be greater than Start time!" ValidationGroup="Validation"runat="server" />

I need to end time must be greater than start time

3 solutions

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Solution 3

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