The variable 'fpspread1' is either undeclared or was never assigned

The variable 'fpspread1' is either undeclared or was never assigned

Posted by: david.sheppard on 15 July 2020, 10:53 am EST

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  david.sheppard

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  Posted 15 July 2020, 10:53 am EST

  I moved to a new computer and I am now using Visual Studio 2019 instead of 2015. When I try to open the form designed I get the message above. If I just run the program it runs and the spread is where it is supposed to be.

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  Ruchir.Agarwal

  

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  Posted 16 July 2020, 8:18 am EST

  Hi David,

  Which Spread.Net version are you using?
  
  Without actually seeing the project, it seems like this might just be a compatibility problem of old Spread version with the latest Visual Studio version. Make sure to take a look at the upgrade notes here for information on how to upgrade an older project: https://www.grapecity.com/spreadnet/docs/v13/readme/upgrade.html

  Let me know if that helps.

  Regards,
  
  Ruchir

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  david.sheppard

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  Posted 17 July 2020, 8:58 am EST

  The version of spread 13.45.20201.0 was not changed. It was working fine on the old computer and in VS2015. The problem arose when I copied the project to the new computer and opened it in VS2019.

  Other behavior that I notice is that I cannot select the spread control when it is in a tablelayout panel.

  I tried changing the legacy behaviors from ALL to None and I get the following error the next time that I try to open the form in the form designer.

  Duplicate component name ‘BookProjectWeeklyActivity_Sheet1’. Component names must be unique and case-insensitive.

  If I ignore and continue to see the form designer I get an “Error Saving Excel File” message when I try to save or exit visual studio.

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  david.sheppard

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  Posted 17 July 2020, 3:04 pm EST

  I fixed the issue by removing all references with farpoint and grapecity and adding them back manually.

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  Ruchir.Agarwal

  

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  Posted 19 July 2020, 11:58 pm EST

  We’re glad to hear that the issue is resolved.

  ~Regards,