ERROR on Custom Validation in c#

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Error is:

String was not recognized as a valid DateTime.

Function of Custom Validator:

C#

protected void chkdate1(object sender, ServerValidateEventArgs e)
{
    IFormatProvider theCultureInfo = new System.Globalization.CultureInfo("en-GB", true);
    DateTime from = DateTime.ParseExact(txt_from_date.Text, "MM/dd/yyyy HH:mm:ss", theCultureInfo);
    DateTime to = DateTime.ParseExact(txt_to_date.Text, "MM/dd/yyyy HH:mm:ss", theCultureInfo);
}

Custom Validation is:

C#

<asp:CustomValidator ID="scdt1" runat="server" OnServerValidate="chkdate1" ErrorMessage="To date not less than From date">

Posted 26-Jun-12 2:39am

Mits Machhi

Updated 26-Jun-12 6:22am

R. Giskard Reventlov

v2

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Comments

BoxyBrown 26-Jun-12 11:36am

What values are in txt_from_date.Text and txt_to_date.Text?

BoxyBrown 26-Jun-12 11:48am

I think better to use DateTime from = DateTime.Parse(txt_from_date.Text);
or get CultureInfo from client.

[no name] 27-Jun-12 0:09am

in both textbox contain date only from ajax calendar.

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Sandeep Mewara · Answer 1 · 2012-06-26T07:12:00

String was not recognized as a valid DateTime.
The way you are trying to convert text to date looks incorrect and you get the error.

Pick one:
1. Definding the culture info in which you want it to be converted.

C#

string dateString = @"06/26/2012";
DateTime date2 = Convert.ToDateTime(dateString,	System.Globalization.CultureInfo.GetCultureInfo("en-GB").DateTimeFormat);

Or

2.the ParseExact method:

C#

string dateString = @"06/26/2012";
DateTime date3 = DateTime.ParseExact(dateString, @"MM/dd/yyyy HH:mm:ss", System.Globalization.CultureInfo.InvariantCulture);