Question

cOMPILE eRROR, vARIABLE NOT DEFINED.

Asked by: awolarczuk

Hi Guys i have recently reinstalled VB 6 back on to my computer after a system crash and now when i try to run some of my programs i am getting a cOMPILE eRROR, vARIABLE NOT DEFINED.
The Code i am using is below
Private Sub additem_Click()
 Set objLst = ListView1.ListItems.Add(, , Text1.Text)
           objLst.SubItems(1) = Text1.Text

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Asked On
2007-02-16 at 19:32:02ID22395685
Tags

defined

,

variable

,

compile

,

error

Topics

Visual Basic v1.0.5.x

,

Microsoft Visual Studio Express

,

Visual Basic Programming

Participating Experts
1
Points
500
Comments
7

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Answers

 

by: bingiePosted on 2007-02-16 at 19:53:02ID: 18553838

Are you variables all defined?

Do you have "Option Explicit" at the top of your forms/modules now, and didn't have it there before?

Also, check Tools -> Options -> Require Variable Declaration

Is that enabled?

 

by: awolarczukPosted on 2007-02-16 at 19:58:36ID: 18553853

It is now, and there is no change, i havent change anything since i have rebuilt the computer in the code anyway

 

by: awolarczukPosted on 2007-02-16 at 20:03:35ID: 18553865

and what variables  need to be defined

 

by: bingiePosted on 2007-02-16 at 20:05:23ID: 18553871

Was "option explicit" there before? If you didn't have option explicit there before - don't have it there now. It forces variable declaration. You settings in VB might be different now that you have reinstalled.

Is the variable declared?

Also, did you reinstall the VB runtimes?

 

by: awolarczukPosted on 2007-02-16 at 20:08:36ID: 18553874

no i dont think so i am still newish to vb sorry if i sound dumb but what varuable need to be declared and i think i did instal the runtimes but how do i check

 

by: bingiePosted on 2007-02-16 at 20:23:39ID: 18553898

OK.

For the most efficient/bug free program, all of your variables must be declared. By using the "Option Explicit" keyword at the top of your Forms/Modules, it forces all variables to be declared. If, in the settings for VB (Tools -> Options -> Require Variable Declaration) is checked, it will automatically place the "Option Explicit" keyword at the top of your Forms/Modules, which forces you to declare your variables.

You could just remove the "Option Explicit" at the top of each Form/Module, this would correct this issue - but you should declare everything.

So...I would use

Private Sub additem_Click()
 Dim objLst as Object
 '  This declares objLst as an object
 Set objLst = ListView1.ListItems.Add(, , Text1.Text)
 objLst.SubItems(1) = Text1.Text

But, if none of your variables are declared - then it could take a while to declare all of them. So, if you need to get it running really quickly - then just remove the "Option Explicit" and start declaring your variables.

Adding an "Object Explicit" later is a great way to determine if you missed a variable declaration.
 '...rest of your code

 

by: awolarczukPosted on 2007-02-16 at 20:40:13ID: 18553936

Thanks mate it worked fine

20120131-EE-VQP-002

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