String was not recognized as a valid DateTime.

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In my application i have fromDate & ToDate Calender Control.When selecting Date To date is greater than or equal to FromDate. but when Selecting To date greater or equal to FromDate i got Exception "String was not recognized as a valid DateTime."
On Following line on code.
if any idea suggest me.

sqlParam.Value = Convert.ToDateTime(sqlParam.Value).ToString("yyyy-MM-dd");

Posted 25-Jul-11 19:16pm

rajjosh

Updated 25-Jul-11 19:31pm

Uday P.Singh

v2

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Raju Prajapati · Answer 1 · 2011-07-25T19:24:00

First fix the datetime format at input point from where you are inputting date.

Use DateTimeFormatInfo...

System.Globalization.DateTimeFormatInfo dateInfo = new System.Globalization.DateTimeFormatInfo();
dateInfo.ShortDatePattern = "yyyy-MM-dd";//the format of input point
sqlParam.Value = Convert.ToDateTime(sqlParam.Value, dateInfo)

Kim Togo · Answer 2 · 2011-07-25T19:56:00

Solution 2

If you are working with DateTime and want to compare them. Then do not convert them to a String to do a compare.
Just compare the DateTime with the other DateTime.

I can see that there is a sqlParam, if it is a SqlParameter[^] Class, you do not need to convert the DateTime to a string.

Posted 25-Jul-11 19:56pm

Kim Togo

Praveen Kullu · Answer 3 · 2011-07-25T20:00:00

Solution 3

Try This and tell if it worked

sqlParam.Value = DateTime.Parse(sqlParam.Value.ToShortDateString);

Posted 25-Jul-11 20:00pm

Praveen Kullu

Updated 25-Jul-11 20:02pm

v2