SL7 and C#

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Posted on by Nayan Mansinha

1,245

Hello Everyone

I'm new to SL development and was wondering if it is possible to write custom modules in C# instead of VB.NET. Does swimapi (again I know very little of this) have any limitations if used in C#?

TIA

Nayan

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Paul Phillips 590 on at

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Re: Re: Re: Re: SL7 and C#

In theory both VB.net and C# compile down to the same or equivalent intermediate language code, however, I recall a hotfix awhile back that dealt specifically with calling Object Model from C# code, so perhaps there are some minor differences in the SL environment. The SL kernel is still C++ from what I understand.

Also, launching the parent app from managed code is a little inconsistent sometimes, to put it gently. Make sure you have all hotfixes dealing with object model for your version (mind the SP level too), and there is a specific recommendation for adding a thread delay during launch (it deals with RPC) and also calling the garbage collection a couple of times (e.g . Collect / WaitForPendingFinalizers / Collect, Thread.sleep(delay), repeat) - described in KB article 952057.

Be sure to check out these KB articles if you run into any issues:

943294: Error messages when you try to use Object Model together with languages other than Visual Basic .NET in Microsoft Dynamics SL 7.0: "Automation error" or "Unable to establish connection with Parent.SIVToolbarRemoteObject"

952057: Error message when you try to execute Object Model code in Microsoft Dynamics SL: "Did not receive signal from MSDynamicsSL" or "Unable to establish connection with Parent.SIVToolbarRemoteObject"

Regards,
Paul
pbrattin 1,850 on at

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Re: Re: Re: SL7 and C#

Absolutely you can write programs that utilize the Solomon Object Model in C#. I would guess you could write VBTools screens in C# but you would have to figure out the C# equivalent of the VBTools required objects, like the record buffers. Examples of those objects are shown in VB.Net.
George Sagen 1,005 on at

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Re: SL7 and C#

Here's a link to the SL Object Model Reference Guide:

https://mbs.microsoft.com/downloads/customer/solomon/70adminguides/sl_ob.pdf
The document claims to be for:
"Other Windows programmers who need to write client applications that automate Microsoft Dynamics SL and who know a programming tool that can create COM automation clients. Such tools might include Microsoft Visual C++, Borland C++, Borland Delphi, PowerBuilder, and many other Windows programming tools. Although all of the examples that are offered are Visual Basic-based, the discussions apply to any COM client ."

Geo
Nayan Mansinha 1,245 on at

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Re: Re: SL7 and C#

Both. Additional screens in SL and using custom module using Solomon Object Model.

TIA

Nayan
pbrattin 1,850 on at

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Re: SL7 and C#

When you say custom modules, do you mean additional screens for a SL system or a custom module that uses the Solomon Object Model? How do you plan to use swimapi in C#?