Title: Read the description
Name: Sung Lee
Date: 7/27/2005 4:04:55 PM
Comment:
The description says it only works up to 2099.
Title: Does not validate 100% leap years
Name: Tester
Date: 7/27/2005 4:19:30 AM
Comment:
date like 2100-2-29 should not be validated :)
Review your leap years definition.
Regards
Title: Very Good!
Name: Chas Chen
Date: 2/17/2005 12:10:56 AM
Comment:
That's good and it works in jsp!
Thank u !
Title: Re: VB.net how to implement?
Name: Michael Ash
Date: 9/27/2004 9:48:17 AM
Comment:
You are using a mm-dd-yyyy date regex. If you are testing with a yyyy-mm-dd formatted date that's not going to match.
Title: Problem in your code
Name: Sung Lee
Date: 9/26/2004 11:05:43 PM
Comment:
Sorry, the code got truncated. I suggest you re-copy and paste the regular expression from this website into your code. You're using the wrong regular expression it looks like. Also I suggest you strongly type your variables.
Title: Problem in your code
Name: Sung Lee
Date: 9/26/2004 11:03:08 PM
Comment:
I think your code isn't working because you are not using the correct regular expression. This code works:
<code>
Dim regexDateFormat As String = "" & _
"^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578]" & _
")|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[4" & _
"69])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\" & _
"s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([1" & _
"3579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((" & _
"0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((" & _
"0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9]" & _
")|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(" & _
"\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$"
Dim startDate As String = txtDateTime.Text
Dim ValidDate As Boolean = False
ValidDate = System.Text.Regular
Title: VB.net how to implement?
Name: Marshall
Date: 9/24/2004 5:35:25 PM
Comment:
What am I doing wrong here? without the NOT, every input is accepted; with the not, everything is changed?
<code>
sub VerifyDates(Sender As Object, E As EventArgs)
Dim regexDateFormat= "" & _
"^(?=\d)(?:(?:(?:(?:(?:0?[13578]|1[02])(\/|-|\.)31)\1|(?:(?:0" & _
"?[1,3-9]|1[0-2])(\/|-|\.)(?:29|30)\2))(?:(?:1[6-9]|[2-9]\d)?" & _
"\d{2})|(?:0?2(\/|-|\.)29\3(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|" & _
"[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00)" & _
")))|(?:(?:0?[1-9])|(?:1[0-2]))(\/|-|\.)(?:0?[1-9]|1\d|2[0-8]" & _
")\4(?:(?:1[6-9]|[2-9]\d)?\d{2}))($|\ (?=\d)))?(((0?[1-9]|1[0" & _
"12])(:[0-5]\d){0,2}(\ [AP]M))|([01]\d|2[0-3])(:[0-5]\d){1,2}" & _
")?$"
Dim startDate=txtStartDate.text
Dim ValidDate = 0
ValidDate = Regex.IsMatch(startDate,regexDateFormat)
if((startDate="yyyy-mm-dd") OR NOT (ValidDate))
txtStartDate.text() = DateTime.Today.ToString("yyyy-MM-dd")
end if
end sub
</code>
Thanks!
Title: nOT WORK
Name: B3B4
Date: 6/30/2004 3:14:32 AM
Comment:
1004/0101
Title: You need to escape the \'s
Name: A. C. Guy
Date: 5/18/2004 5:55:09 PM
Comment:
That's why it works in VB and not in C#. Same deal if you're using C/C++.
Title: Fixed a bug
Name: Sung Lee
Date: 11/3/2003 1:36:18 PM
Comment:
I fixed a bug where it would accept xxxx/11/31 as a valid date. I'm not sure why your .NET code isn't working. I tried it in VB.NET and it worked fine. You might want to verify that args[0] is the value you are expecting it to be.
Title: Does Not Work in .NET?
Name: Anony Mouse
Date: 11/1/2003 11:17:43 AM
Comment:
using System;
using System.Text.RegularExpressions;
class DtTest
{
[STAThread]
static void Main(string[] args)
{
string ansiDateRegex = @"^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[0-2]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[0-2]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$ ";
if ( Regex.Match( args[0] , ansiDateRegex ).Success == false )
{
Console.WriteLine( "false" );
}
else
{
Console.Write( "true" );
}
}
}
Above code returns false when tried with these samples:
2004-2-29|||2004-02-29 10:29:39 pm|||2004/12/31
