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c#backgroundworkerint32

Convert.ToInt32(float) fails when trying to convert float to Int32

No exception is thrown, function just halts at this statement:

int productQuantity = Convert.ToInt32("1.00");

and returns.

What am I doing wrong to convert this float to Int32?

Note: I am running in a BackgroundWorkerThread.

Solution

  • An exception is being thrown in this case it's just not being surfaced in the debugger. This string is not in a format that is convertible to an Int32 type and hence throws and exception. You can verify this by wrapping it in a try/catch block if the IDE isn't cooperating.

    The best approach here is probably to convert the string to a double and then manually cast it down to an int. This does open the door for data loss due to precision differences. But given your input is in a float style format this is unavoidable if you want the final product to be an int