In vb6 LEFT$(data,4) works but not in .NET

[DeeRuff1]

Is there some thing I need to know about since trying to use Left$(data,4) is not working?

 

[ca8msm]

Make sure you are using the correct method from the .NET Framework. Just to test it, use:

Dim s As String = Microsoft.VisualBasic.Left(Data, 4)

--------------------------------------------------------------------------------------------------------------------------------------------

Need help finding an answer?

Try the search facility (

http://www.tek-tips.com/search.cfm)

or read FAQ222-2244 on how to get better results.

 

[ThatRickGuy]

Data.Substring(0,4)

-Rick

VB.Net Forum forum796 forum855 ASP.NET Forum
I believe in killer coding ninja monkeys.

 

[JohnYingling]

Data.Substring(0,4)
fails if length < 4

If you want to use Framework rather than Microsoft.VisualBasic the use

Data.Substring(0, Math.Min(Data.Length, 4))
to act the same as Left.

http://www.moldyoldy.com/VBComparedemo

- free online Compare/Diff of snippets

 

[ThatRickGuy]

Nice catch John!

-Rick

VB.Net Forum forum796 forum855 ASP.NET Forum
I believe in killer coding ninja monkeys.

 

[earthandfire]

Now if that's not a set backwards I don't know what is!

 

[earthandfire]

Sorry I meant to say - Now if that's not a step backwards I don't know what is!

I should read before submitting.

 

[ThatRickGuy]

Not really. Having Left as a stand alone function was handy, but having a method that can perform left, right, and mid built into the string class is even more handy.

Grats on the tmow by the way!

-Rick

VB.Net Forum forum796 forum855 ASP.NET Forum
I believe in killer coding ninja monkeys.

 

[earthandfire]

Thanks Rick.

What I meant, though, was that we now have to make sure that there are enough characters.

Data.Substring(0,4)

is great, but it should work for upto 4 characters.

Data.Substring(0, Math.Min(Data.Length, 4))

is what I think is a rather retrograde step. It also explains a problem that I had a couple of months ago.

 

[ThatRickGuy]

Maybe my memory of VB6 is getting foggy, but wouldn't Left(string, len) bomb out if string was shorter then len?

-Rick

VB.Net Forum forum796 forum855 ASP.NET Forum
I believe in killer coding ninja monkeys.

 

[bjd4jc]

>>wouldn't Left(string, len) bomb out if string was shorter then len


No