Possibly error message when starting program with missing included DLL

[ArneOrtlinghaus]

Robert,
thank you for the information. Nice to know how much the compiler does. In older times every type had to be exact what was requested in the original function and now the compiler makes all the transformations/castings that are necessary.

[robert]

Arne,

Robert,
thank you for the information. Nice to know how much the compiler does. In older times every type had to be exact what was requested in the original function and now the compiler makes all the transformations/castings that are necessary.

Although I really would want to take the credit for this, that would be too much honour.
All this stuff is done by the guys at Microsoft.

Robert

[wriedmann]

Hi Robert,

I have tried this, but it does not even compiles:

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error XS0234: The type or namespace name 'exe' does not exist in the namespace 'ProdPlan' (are you missing an assembly reference?)	15,2	Start.prg	ProdPlan

My Application is called ProdPlan.exe, and uses the namespace ProdPlan.
I have now tried to do that in a small sample, but have the same behavior:

StartupExceptionTester.zip

(2.37 KiB) Downloaded 108 times

The code is the following:

Code: Select all

try

ProdPlan.exe.Functions.Start()

catch oEx as Exception
.....

Where is my error, please?
Thank you very much!
Wolfgang

[robert]

Wolfgang,

This app is for the Core dialect. The namespace rules are different in the core dialect. The class is now simply named "Functions".

So you need to call Functions.Start()

But since you have an argument in Start() for the commandline arguments, you also need this argument in the Start() method and you need to pass that argument along.

And then, after you fix the missing parameters in your call to OutPut() <g> everything will work.

Robert

[wriedmann]

Hi Robert,
it works now with this code:

Code: Select all

Functions.Start()

For anyone interested please see the attached sample:

StartupExceptionTester.zip

(2.38 KiB) Downloaded 106 times

I have tried to inherit the startup window from a class in an external DLL and the copied the exe without the DLL to a random folder, and effectively I can see the correct error (and it is written to the disk).
Wolfgang

[wriedmann]

Hi Robert,

yes, after fixing the error with the Start() call I have seen (and fixed) also the errors in my Output call.
It works now:

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An unhandled exception has occurred
===================================
Exception: Die Datei oder Assembly "rdm.WinFormsLib, Version=1.0.0.1, Culture=neutral, PublicKeyToken=37b41ccb897b15ad" oder eine Abhängigkeit davon wurde nicht gefunden. Das System kann die angegebene Datei nicht finden.
Callstack:
   bei Functions.Start()
   bei XStartupCode.Start() in C:XSharpXIDEProjectsPublicProjectsApplicationsStartupExceptionTesterPrgStart.prg:Zeile 18.

===================================
Press any to close the application

Thank you very much!

Wolfgang

[wriedmann]

Hi Robert,
another thing: I have now implemented that in my production planning software, and on compile I receive the following warning:

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warning XS0436: The type 'Functions' in '' conflicts with the imported type 'Functions' in 'ProdPlanGUILib, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null'. Using the type defined in ''.	15,2	Start.prg	ProdPlan

This application uses another lib that uses the same namespace.
Is the only solution to change the namespace of the library?
Thank you very much!
Wolfgang

[wriedmann]

Hi Robert,
another thing: when using a namespace, the compiler option must include it:

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 -main:ProdPlan.XStartupCode

Wolfgang
P.S. maybe I will include that and a link to this discussion on the wiki....

[wriedmann]

Hi Robert,
I'm back to this topic for a migrated application, and unfortunately I have some problems with it.

What is the default namespace for a migrated application that does not has any namespace indication with it?

On the line

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Functions.Start()

in my StartupCode class I see the error

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error XS0117: 'XSharp.RDD.Functions' does not contain a definition for 'Start'	16,2	Start.prg	DictEdit.XStartupCode:Start

that may be connected to the default namespace.

Removing the "Functions." part fixed that for me.

But adding

Code: Select all

-main:DictEdit.XStartupCode

to the compiler options gave me

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error XS1555: Could not find 'DictEdit.XStartupCode' specified for Start function

So I think this is also namespace related.

Wolfgang

[robert]

Wolfgang,

When you migrate a VO app with the name DictEdit, then the generated Assembly name by the Exporter is DictEdit.EXE and the Default Namespace is also DictEdit

Please note that this default namespace is only used with:
- when you enable the option "Prefix classes with Default Namespace". In that case, the class Foo becomes DictEdit.Foo
- when you create files inside Visual Studio. A new class "Class1" will be generated as DictEdit.Class1.
When the new class file is in a folder "Test" then VS generates code for the class as DictEdit.Test.Class1.

The functions class in a migrated application is derived from the assembly name and not from the default namespace.

When the assembly name is DictEdit.Exe, then the name of the functions class is DictEdit.Exe.Functions
When the assembly name is DictEdit.Dll, then the name of the functions class is DictEdit.Functions

The compiler automatically adds a using DictEdit.Exe.Functions inside each of the programs in your app (assuming DictEdit.Exe is your assembly name).
So there is no need to prefix the code with Functions. If you do want to prefix then I would recommend to use the full name: DictEdit.Exe.Functions.Start()


Robert