Convert a string to a datetime

Question

I am developing asp net site using vb framework 3 5   Im having difficulties converting string data into Date I tried using cdate function   I have a variable  sdate which is a string variable and date is stored in it which comes from textbox as dd mm yyyy now i want to convert this string into a Date variable as i need to perform the operations as Add a day or Subtract a day    Please guide me how to go about this  i get the error on 3rd line as String was not recognized as a valid DateTime  I have tried to do as follows but the error comes  Dim sdate As String  Dim expenddt As Date expenddt   Date Parse edate  expenddt   expenddt AddDays -1    But i get the error as      Conversion from String to type Date is not valid    How can I get a Date from the string

User · Answer

Try converting date like this       Dim expenddt as Date   Date ParseExact edate   dd mm yyyy    System Globalization DateTimeFormatInfo InvariantInfo     Hope this helps

User · Answer

Try to use DateTime ParseExact method  in which you can specify both of datetime mask and original parsed string  You can read about it here  MSDN  DateTime ParseExact

User · Answer

Try to see if the following code helps you   Dim iDate As String    05 05 2005  Dim oDate As DateTime   Convert ToDateTime iDate

User · Answer

Nobody mentioned this  but in some cases the other method fails to recognize the datetime     You can try this instead  which will convert the specified string representation of a date and time to an equivalent date and time value  string iDate    05 05 2005   DateTime oDate   Convert ToDateTime iDate   MessageBox Show oDate Day         oDate Month          oDate Year

User · Answer

You should have to use Date ParseExact or Date TryParseExact with correct format string    Dim edate    10 12 2009   Dim expenddt As Date   Date ParseExact edate   dd MM yyyy                System Globalization DateTimeFormatInfo InvariantInfo    OR   Dim format       dd MM yyyy    d M yyyy    dd-MM-yyyy    Dim expenddt As Date   Date ParseExact edate  format         System Globalization DateTimeFormatInfo InvariantInfo        Globalization DateTimeStyles None    OR  Dim format       dd MM yyyy    d M yyyy    dd-MM-yyyy   Dim expenddt As Date Date TryParseExact edate  format       System Globalization DateTimeFormatInfo InvariantInfo       Globalization DateTimeStyles None  expenddt

[vb.net] Convert a string to a datetime

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