Using Microsoft Chart Control in dotnet

  • Thread starter Thread starter Bob Dankert
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Bob Dankert

I am trying to use the Microsoft Chart Control COM component in dotnet 2.0
but keep getting "class not registered" exceptions when I try to run the
code. I have done the following so far to try and get around this issue:

- registered mschart20.ocx using "regsvr32 mschrt20.ocx"
- registered AxInterop.MSChart20Lib.dll using regasm
- registered Interop.MSChart20Lib.dll using regasm
- reinstalled Office Web Components 2003

Unfortunately, none of these has made any difference. More or less, I am
doing the following with my code:
- create new project
- add Microsoft Chart Control 6 reference (listed in COM object list)
- drag a Microsoft Chart Control 6.0 (SP4)(OLEDB) to my form
- Try to run the code - class not registered exception is thrown every time

Does anyone have any ideas?

Using DotNet 2.0 with VS 2005 on Windows XP 64-bit currently.

Bob Dankert
 
Hi Bob,

Thank you for posting.

I have performed a test according to your steps, but I didn't reproduce the
problem you described.The OS on my machine is Windows XP Professional 2002
SP2.

You have mentioned that you registered mschart20.ocx using "regsvr32
mschrt20.ocx". Do you succeed in it?

If you have install VB6 in your machine, you may have a test to see if the
problem exists in VB6. If the problem still exists in VB6, it seems that
the problem may be related to the ActiveX control file or its dependency
files. You may use "depends" tool to see whether all the dependency files
of the ActiveX file exist on your machine and the version of these files
are correct. If the result is No, you may copy the absent dlls to your
machine.

To use this tool, go to Start menu ->All Programs-> VS .NET2005-> Microsoft
Visual Studio 2005->Visual Studio Tools->Visual Studio 2005 Command Prompt.
In the command prompt, type "depends" command and press enter. In the
Dependency Walker window, open the mschrt20.ocx.

Hope this helps.
Please try my suggestion and let me know the result.


Sincerely,
Linda Liu
Microsoft Online Community Support

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In answer to your questions:

- When I ran "regsvr32 mschrt20.ocx", this did indeed succeed. I registered
this file by going to the c:\windows\syswow64\ folder and running the
command mentioned.
- I created a VB6 project and this worked without any problems
- Per the "depends" tool, see the following paragraph.

After running the Dependency Walker tool on the MSCHRT20.OCX file in the
C:\Windows\SysWow64\ folder I found that there are two files which can not
be found. These files are DEVMGR.DLL and DWMAPI.DLL, and the message for
both is "Error opening file. The system cannot find the file specified
(2)." In regards to DEVMGR.DLL, this file resides in my C:\Windows\System32
folder and for good measure I registered the module using regsvr32 (this
succeeded) and ran Dependency Walker again and this module still can not be
found. In regards to DWMAPI.DLL, I do not have this file anywhere any
folder within C:\Windows and am not sure where this is supposed to be.

I wonder if this is perhaps all related to the Windows XP 64-bit operating
system? I tested the same thing on another development computer in my
office which is also running XP 64-bit with VS.Net 2005 and this computer
had the exact same problem.

I appreciate the help and look forward to your additional suggestions!

Bob
 
Hi Bob,

Thank you for your response.

I think you may have a try copying the DEVMGR.DLL file from
C:\Windows\System32 folder to the C:\Windows\SysWow64\ folder, search and
download the DWMAPI.DLL on google and move it to the C:\Windows\SysWow64\
folder.

Then unregister the mschrt20.ocx and register this OCX file again.

Hope this helps.


Sincerely,
Linda Liu
Microsoft Online Community Support
 
Hi Bob,

How is it going with the problem?

If the problem is not resolved or you have anything unclear, please feel
free to post in the newsgroup and we will follow up.

Thank you for using our MSDN Managed Newsgroup Support Service!



Sincerely,
Linda Liu
Microsoft Online Community Support
 
Linda,

I was able to get the software to work after a lot of tweaking. After using
it, I have decided to go with a different Chart control which I beleive will
suite my needs better. Thanks for helping to get this working!

Bob
 
Hi Bob,

Thank you for your response. I am very glad to hear that you have solved
the problem.

If you have any other questions in the future, please don't hesitate to
contact us. It's always our pleasure to be of assistance.

Have a nice day!

Sincerely,
Linda Liu
Microsoft Online Community Support
 
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