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C# - System.FormatException: Input string was not in a correct format.

    Question

  • Several years ago I had some software developed in C#. 

    We have several people using this software in many locations.  Today, the software began to display the following message when you try to change the COM Port settings in the software:

    System.FormatException: Input string was not in a correct format.

    The only thing that we can put it down to is a windows update, as the software has worked for years on these PC's, and only the ones that have had a windows update appear to have this problem.

    Has anyone else had this experience? (Software tried and tested for several years - then all of a sudden this error appears - System.FormatException: Input string was not in a correct format.)

    If so, does anyone have a solution for it?

    Thanks in advance, Steve.

    Tuesday, May 04, 2010 7:50 AM

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