string was not recognized as a valid datetime

Question

[FormatException: String was not recognized as a valid DateTime.]
System.DateTimeParse.Parse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles) +
5052855 System.Convert.ToDateTime(String value)

declaration global

public string frdate { get; set; }
public string todate { get; set; }

i want fix this error " String was not recognized as a valid DateTime."

DateTime frdate = Convert.ToDateTime(obj.frdate);
DateTime todate = Convert.ToDateTime(obj.todate);

Vishal Joshi · Answer

Hello, Try the below code to get string to datetime in C# DateTime frdate = DateTime.ParseExact(obj.frdate, "dd-MM-yyyy", CultureInfo.InvariantCulture); DateTime todate = DateTime.ParseExact(obj.todate, "dd-MM-yyyy", CultureInfo.InvariantCulture); Thanks Vishal Joshi

Abhishek Yadav · Answer

To fix the error "String was not recognized as a valid DateTime," you need to make sure that the string values obj.frdate and obj.todate are in a valid DateTime format before converting them. You can use the DateTime.TryParseExact method to parse the strings into DateTime objects, specifying the exact format you expect the strings to be in. Here's an example: string format = "MMM d yyyy h:mm tt"; DateTime frdate; DateTime todate; if (DateTime.TryParseExact(obj.frdate, format, CultureInfo.InvariantCulture, DateTimeStyles.None, out frdate) && DateTime.TryParseExact(obj.todate, format, CultureInfo.InvariantCulture, DateTimeStyles.None, out todate)) { // Both frdate and todate are successfully parsed as DateTime objects // Perform your logic here } else { // One or both strings were not in the expected format // Handle the error or display an error message to the user } In this example, the format string "MMM d yyyy h:mm tt" specifies the expected format of the strings, which appears to be "Feb 7 2024 7:26 AM" based on your question. You can adjust the format string according to your specific needs. The DateTime.TryParseExact method returns true if the parsing is successful, and the parsed DateTime value is assigned to the corresponding frdate and todate variables. If the parsing fails, false is returned, and you can handle the error accordingly.

Naimish Makwana · Answer

Hi Garima, What is the value of obj.frdate and obj.todate? Thanks

Garima Bansal · Answer

Naimish Makwana this way 07-02-2024

Naimish Makwana · Answer

Hi @Garima, Yes, but model should have some values right? what is that? ex. 02/07/2024 or 07/02/2024. Thanks

Garima Bansal · Answer

Dear Naimish Makwana , I am getting it from model @if (Model.frdate != null && Model.todate != null) { From: @Model.frdate To: @Model.todate }

Jayraj Chhaya · Answer

The "String was not recognized as a valid DateTime" error typically occurs when the string being converted to a DateTime object does not match the expected format. To fix this error, you need to ensure that the string being converted is in a valid DateTime format. To avoid the error, you can use the DateTime.TryParseExact method instead, which allows you to specify the expected format of the input string. DateTime frdate; DateTime todate; if (DateTime.TryParseExact(obj.frdate, "yyyy-MM-dd", CultureInfo.InvariantCulture, DateTimeStyles.None, out frdate) && DateTime.TryParseExact(obj.todate, "yyyy-MM-dd", CultureInfo.InvariantCulture, DateTimeStyles.None, out todate)) { // The conversion was successful, you can now use the frdate and todate variables } else { // The conversion failed, handle the error accordingly } By using DateTime.TryParseExact , you can ensure that the input strings are in the correct format before attempting the conversion, thus avoiding the "String was not recognized as a valid DateTime" error.

Alpesh Maniya · Answer

To fix the "String was not recognized as a valid DateTime" error, you need to ensure that the string values frdate and todate are in a valid date format before converting them to DateTime objects. Here's a revised approach using the DateTime.TryParseExact method: public string frdate { get; set; } public string todate { get; set; } // Define the date format expected for parsing string dateFormat = "yyyy-MM-dd"; // Attempt to parse the frdate string DateTime frDateTime; if (DateTime.TryParseExact(frdate, dateFormat, CultureInfo.InvariantCulture, DateTimeStyles.None, out frDateTime)) { // Parsing successful, frDateTime contains the parsed DateTime value } else { // Parsing failed, handle the error or provide feedback to the user } // Attempt to parse the todate string DateTime toDateTime; if (DateTime.TryParseExact(todate, dateFormat, CultureInfo.InvariantCulture, DateTimeStyles.None, out toDateTime)) { // Parsing successful, toDateTime contains the parsed DateTime value } else { // Parsing failed, handle the error or provide feedback to the user } Replace "yyyy-MM-dd" with the appropriate date format for your input strings. This code attempts to parse the input strings using the specified date format. If parsing succeeds, the resulting DateTime values are stored in frDateTime and toDateTime . If parsing fails, you can handle the error accordingly or provide feedback to the user about the invalid date format.