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C# app, strange runtime behaviour

Posted on 2016-10-08
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Last Modified: 2016-10-13
I've just encountered a wierd problem.
The following piece of code (using VS2010) works
SNAG-0028.bmpand, on the same PC, the following piece of code (using VS2015) fails
SNAG-0029.bmp
Any ideas as to what is going on - I just copied and pasted the file from one project to a newer one.
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Question by:AndyAinscow
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LVL 28

Expert Comment

by:Pawan Kumar
ID: 41835054
Prefix @ before Provider keyword in the connection string.
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Author Comment

by:AndyAinscow
ID: 41835056
No it isn't that, the code is identical.
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LVL 28

Expert Comment

by:Pawan Kumar
ID: 41835059
Yes it is the VS 2015. If you Prefix @ before Provider keyword in the connection string then it will work.
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Accepted Solution

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AndyAinscow earned 0 total points
ID: 41835063
I've tried it and it doesn't make any difference.

Meanwhile I have found it is an x86 / x64 conflict.  Changing the solution property settings cured it.
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Author Closing Comment

by:AndyAinscow
ID: 41841662
32/64 bit compilation problem, only one of those options had the provider installed.
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