getting part of a string

[A1METALHEAD]

how do you get a part of a string? like if i wanted to get the first letter of "hello world"?

 

[cLFlaVA]

Left() function.

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*cLFlaVA
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The bartender asks, "What's with the big pause?

 

[RiverGuy]

NewString = OldString.SubString(1,1)

 

[JohnYingling]

RiverGuy

"OldString.SubString(1,1)"
Two things are wrong.
1 - .Net Framework is 0-relative so you need
OldString.SubString(0,1)
to get the first character.

2 - if OldString.Length = 0 then an exception will be thrown.

So
if OldString.Length > 0 then
NewString = OldString.SubString(0,1)
else
NewString = String.Empty
End if

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Generate Sort Class in VB

http://www.Vbcompare.com/Check.Htm(1979

Check To MS)

 

[RiverGuy]

My mistake John. Was in a hurry. Wrote it to mainly show the new .Net methodology as opposed to VB6 compatibility.

 

[JohnYingling]

New wrinkle

NewString = OldString.SubString(0,Math.Min(1, OldString.Length))

http://www.VBResizer.com

Forms/Controls Resizing/Tabbing

http://www.VBCompare.com

Compare Code

http://www.VBSortGen.com

Generate Sort Class in VB

http://www.Vbcompare.com/Check.Htm(1979

Check To MS)

 

[chrissie1]

BTW left() right() and mid() are perfectly acceptable and have some errorhandling included. for example they wont produce an error when the string is 0 length.

they produce the same IL code as substring

Christiaan Baes
Belgium

If you want to get an answer read this FAQ faq796-2540
What a wonderfull world - Louis armstrong

 

[JohnYingling]

Yes. I know but going "pure".Net Framework in VB.Net has made moving to C# much easier. My VB.Net has no Imports Microsoft.VisualBasic in the code or in the Project Imports.

http://www.VBResizer.com

Forms/Controls Resizing/Tabbing

http://www.VBCompare.com

Compare Code

http://www.VBSortGen.com

Generate Sort Class in VB

http://www.Vbcompare.com/Check.Htm(1979

Check To MS)

 

[chrissie1]

or you could include the microsoft.visualbasic in c#. all the comforts from home...

Christiaan Baes
Belgium

If you want to get an answer read this FAQ faq796-2540
What a wonderfull world - Louis armstrong

 

[JohnYingling]

Yes, but what if a prospective future employer will not allow that. I want to be able to claim "pure" C#. Bottom line is, I'll follow the money. Right or wrong. C# pays LOTS more.

See Visual Studio then click on C# gets th big bucks.

http://www.ftponline.com/vsm/2003_06/magazine/features/salarysurvey/page3.aspx

Language used Average salary
C# $98,813
Visual Basic .NET $72,959
Visual Basic 4.0, 5.0, or 6.0 $72,461
Visual C++ 6.0 $75,500

C# Gets the Big Bucks. Last year, C# developers earned around $5,000 more than Visual Basic .NET developers. This year that gap has widened to an astounding $26,000. It literally pays to know C#—whereas salaries for developers who program primarily in Visual C++ remain flat with last year's numbers.

http://www.VBResizer.com

Forms/Controls Resizing/Tabbing

http://www.VBCompare.com

Compare Code

http://www.VBSortGen.com

Generate Sort Class in VB

http://www.Vbcompare.com/Check.Htm(1979

Check To MS)

 

[chrissie1]

well, im not in it for the money.

Christiaan Baes
Belgium

If you want to get an answer read this FAQ faq796-2540
What a wonderfull world - Louis armstrong