How can i check Date is valid or not...

Question

Dear Brother's

I want to create function which returns that date is valid or not.. do you have any idea that how can i create that type of function; Thanks in advance..

Best regards

Waqar Hussain Laghari

Niradhip Chakraborty · Answer

try this for validation of a range DateTime dt; if (DateTime.TryParse(strDateTime, out dt)) { DateTime minDateTime = new DateTime(1900, 1, 1); DateTime maxDateTime = new DateTime(2079, 6, 7); //the day is 7 because of the requirement for the hour to be 23:59:59 if (DateTime.Compare(dt, minDateTime) > 0 && DateTime.Compare(dt, maxDateTime) { //we are in the range } } else { //the datetime is not valid } or you also can use this: ErrorMessage="Please enter a valid date." ValidationExpression="^\d{1,2}\/\d{1,2}\/\d{4}$">

waqar laghari · Answer

Thanks you very much you both.. My problem is solved.. Best regards Waqar Hussain Laghari

Nipun Tomar · Answer

/// /// Validates a date using C#-built in DateTime.TryParse() /// function. /// /// The date to validate /// True if the date is valid, false otherwise. public static bool ValidateDate( string date) { //Dates can be entered in a couple of different formats: //1. 2008-02-04 //2. 02-04-2008 //3. April 2 2008 //4. April 2, 2008 //5. Apr 2, 2008 //6. 02-APR-2008 //7. 2-APR-08 //It can be done with regular expressions, but DateTime.Parse(string date) method can be used to validate the date. DateTime dateParsed = new DateTime (); return DateTime .TryParse(date, out dateParsed); }