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Throw Error When Closing

Sep 28, 2012 at 3:09 AM

I'm not sure why this error always show when i close project. Below is the Error Message.

The Control ExcelViewer.ExcelViewer has thrown an unhandled exception in the designer and has been disabled.


Value cannot be null.

Parameter name: value

Stack trace:

at ExcelViewer.ExcelViewer.closeExcel()

at ExcelViewer.ExcelViewer.OnHandleDestroyed(EventArgs e)