Why I am getting string was not recognized as a valid datetime.

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I have a textbox txtChqDate having jquery date picker.If date less than todays date(2016-11-10) is selected than its fine but date greater than todays date say(2016-11-26) is selected than it shows error "String was not recognized as a valid DateTime".

What I have tried:

Code I have used:

DateTime chqdate = Convert.ToDateTime(txtChqDate.Text);
DateTime transdate = Convert.ToDateTime(txtTransDate.Text);
if (chqdate >transdate)
{
string script ="alert('Cheque Date Not Reached');";
ClientScript.RegisterClientScriptBlock(this.GetType(), "Alert";, script, true);
txtChqDate.Text =""
txtAccNo.Focus();
}
else
{
txtpaidto.Focus();
}

Posted 9-Nov-16 18:35pm

Member 12840127

Updated 9-Nov-16 18:55pm

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Kornfeld Eliyahu Peter · Accepted Answer · 2016-11-09T18:55:00

It has something to do with your local date settings...
Convert.ToDateTime("") is equivalent to DateTime.Parse("", CultureInfo.CurrentCulture), so it is obvious that the YYYY-MM-DD does not fit your local... It seams to be YYYY-DD-MM, as it try to interpret 26 as month an fails...
Use DateTime.ParseExact[^] method with the proper format!

Karthik_Mahalingam · Accepted Answer · 2016-11-09T18:52:00

Solution 1

try this

C#

DateTime chqdate = DateTime.ParseExact(txtChqDate.Text, "yyyy-MM-dd", CultureInfo.InvariantCulture);

refer
DateTime.TryParseExact Method (System)[^]
DateTime.ParseExact Method (String, String, IFormatProvider) (System)[^]

Posted 9-Nov-16 18:52pm

Karthik_Mahalingam