Hi,
I have a simple C# winforms app, which uses a control developed by one
of my colleagues.
This control manages the import of data from a csv file to a database.
It declares an interface that the main form implements in order to
provide the customization for the actual task of importing the data. The
problem I am having is when the import is in progress and is then
cancelled (by the use of a button on the control), if I subsequently
create another form (e.g. About dialogbox) I get an exception when
initializing the form - but only if the form has to create a new
System.Drawing.Font (like when a label doesn't have the default font
settings).
The exception message is :
An unhandled exception of type 'System.ArithmeticException'
occurred in system.drawing.dll
Additional information: Overflow or underflow in the arithmetic
operation.
Now if the import actually completes, this does not happen. The event to
cancel the import just sets a flag that the import routines checks
before each line is imported, then the control follows the same code
path as if the import reached the end of the input file.
I have tried resetting the control back to how it was to begin with -
still the same.
I am at a loss here as to how to chase this problem down. Any pointers
will be greatly appreciated.
Has anyone encountered a problem like this before?
I know this probably doesn't give you all the info you need, I am more
than happy to provide more detail where needed.
Regads,
Paul Jefferies
Adastra Software Ltd
www.adastra.co.uk
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