String was not recognized as a valid DateTime.

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1.00/5 (2 votes)

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Trying to convert Date and time but Its not recogonized...

pls help me to fix this error

C#

if (lblProdid.Text != string.Empty || lblProdid.Text != null)
                {
                    dr = dt.NewRow();

                    dr["Column1"] = lblProdid.Text;
                    dr["Column2"] = txtPrice.Text;
                 
                    DateTime dtime = DateTime.ParseExact(txtExpiryDate.Text.Trim(), "yyyy/dd/MM", CultureInfo.InvariantCulture);
                    dr["Column3"] = dtime;
                    dr["Column4"] = txtActQty.Text;
                    dr["Column5"] = txtMinQty.Text;

                    dt.Rows.Add(dr);
                }
            }

Posted 23-May-14 19:08pm

usha C

Updated 23-May-14 19:13pm

Thanks7872

v2

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Thanks7872 24-May-14 1:14am

Whats the value of txtExpiryDate.Text?

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 24-May-14 1:17am

You should use DatePicker for DateTime? Are you using?

usha C 26-May-14 2:50am

Am retrieving the value from DB
the value of txtExpiryDate.Text is 26/5/2014

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Prasad_Kulkarni · Answer 1 · 2014-05-23T20:30:00

Solution 2

Refer following solved thread: String was not recognized as a valid DateTime.[^]

Posted 23-May-14 20:30pm

Prasad_Kulkarni

Peter Leow · Answer 2 · 2014-05-23T19:58:00

You can use TryParseExact to validate the date input by a user, see example:

C#

using System;
using System.Globalization;

public class Program
{
    public static void Main()
    {
        string dateString = "2014/23/05";   // in "yyyy/dd/MM"format
        DateTime result;
        if (DateTime.TryParseExact(dateString, "yyyy/dd/MM", CultureInfo.InvariantCulture, DateTimeStyles.None, out result)){

            Console.WriteLine(result.ToString("yyyy/MM/dd"));
        } else {
            Console.WriteLine("Date invalid");
        }
    }
}

Suggest use some datetime picker control which will automatic returns a date value upon selection, without the hassle of validation.