VB.NET error

[VB User]

While trying to code in VB.NET I get this error: Reference to a non-shared
member requires an object reference.
Any suggestions/ideas why this occurs?

VBUser

[Cor Ligthert [MVP]]

Re: VB.NET error

VB User
[color=blue]
> While trying to code in VB.NET I get this error: Reference to a non-shared
> member requires an object reference.
> Any suggestions/ideas why this occurs?[/color]

Mostly is it because an error in your code.

Cor

[alantolan@users.com]

Re: VB.NET error

Please post the code so that we can help, but from the message, it
appears that you are referencing a non-shared function from within a
shared one

e.g.

public class foo

public Function Getbar() as string
return "bar"
end function

public shared function GetMessage() as string
return "foo" + Getbar()
'<--- This line will cause the error
end function

end class

[VB User]

Re: VB.NET error

With myTempImage
.Aoi.SetBox(-1, 50, 50, 150, 150)
Dim mcregionsT As New McRegions
mcregionsT = IQL.McApplicati on.CreateOperat or("McRegions" ,
myTempImage)
mcregionsT.Thre shold.Execute()
mcregionsT.Clea nUpBordersAndNo ise(.Aoi,
mcRegionBorders .mcrbAllBorders , 25)
.PointFeatures. CopyFrom(mcregi onsT.mpRgnCentr oidAsPoint.valu e)
mcregionsT = Nothing
.SaveAs("C:/temp/CentroidSoy.tif ")

End With



I get the error at the line: IQL.McApplicati on.CreateOperat or

VBUser
"alantolan@user s.com" wrote:
[color=blue]
> Please post the code so that we can help, but from the message, it
> appears that you are referencing a non-shared function from within a
> shared one
>
> e.g.
>
> public class foo
>
> public Function Getbar() as string
> return "bar"
> end function
>
> public shared function GetMessage() as string
> return "foo" + Getbar()
> '<--- This line will cause the error
> end function
>
> end class
>
>[/color]

[Chris]

Re: VB.NET error

VB User wrote:[color=blue]
> With myTempImage
> .Aoi.SetBox(-1, 50, 50, 150, 150)
> Dim mcregionsT As New McRegions
> mcregionsT = IQL.McApplicati on.CreateOperat or("McRegions" ,
> myTempImage)
> mcregionsT.Thre shold.Execute()
> mcregionsT.Clea nUpBordersAndNo ise(.Aoi,
> mcRegionBorders .mcrbAllBorders , 25)
> .PointFeatures. CopyFrom(mcregi onsT.mpRgnCentr oidAsPoint.valu e)
> mcregionsT = Nothing
> .SaveAs("C:/temp/CentroidSoy.tif ")
>
> End With
>
>
>
> I get the error at the line: IQL.McApplicati on.CreateOperat or
>
> VBUser
> "alantolan@user s.com" wrote:
>
>[color=green]
>>Please post the code so that we can help, but from the message, it
>>appears that you are referencing a non-shared function from within a
>>shared one
>>
>>e.g.
>>
>>public class foo
>>
>> public Function Getbar() as string
>> return "bar"
>> end function
>>
>> public shared function GetMessage() as string
>> return "foo" + Getbar()
>>'<--- This line will cause the error
>> end function
>>
>>end class
>>
>>[/color][/color]

mcregionsT = IQL.McApplicati on.CreateOperat or("McRegions" , myTempImage)

Where do you define an instance of IQL? Since you are trying to do an
operation against a member of IQL (McApplication in this case) somewhere
you have to create an instance of IQL (most likely using new statement)
What you have would be fine if CreateOperator was marked as "shared"
which is is not, hence the error message.


Dim mcregionsT As New McRegions
This is an error. What you are doing is creating a new instance of
McRegions. Then the very next statement you lose that instance and
point to another new instance that is returned by IQL.McApplictio n.....

Instead do:
Dim mcregionsT as McRegions
This makes a pointer that will point to an McRegions object but doesn't
just yet. Your next line then have mcregionsT point to the object.


Chris