RE: [aus-dotnet] IsDate function

[William Luu]

Well, you could always try doing a DateTime.Parse(str) and catch the exception?

 

private bool IsDate(string strDate)
{

    bool isDate = false;

    try
    {

        DateTime.Parse(strDate);

        isDate = true;
    }

    catch (ArgumentNullException nullArg)
    {

            // you can do something here to tell user it was a null input etc...

        isDate = false;
    }

    catch (FormatException formatEx)

    {

        isDate = false;
    }

 

    return isDate;
}

 

Not sure if that's the best way, but that's certainly one way.

--
William Luu
Project Developer
The Grid Corporation

-----Original Message-----
From: Alastair Waddell [mailto:AliWaddell@xxxxxxxxxxxxxxx]
Sent: Tuesday, 21 September 2004 4:04 PM
To: dotnet@xxxxxxxxxxx
Subject: [aus-dotnet] IsDate function
Importance: High

Does anybody have a better way of checking a string to see if it is a valid date?

 

 

Ie ....

 

Function CheckDate(_value as string) as Boolean

 

Return IsDate(_value)

 

End Function

 

This is very slow if the input param is null

 

A