The given paths format is not supported. Among other things that can cause this error You cannot have certain characters in the full Path. File string. For example, these characters will crash the Stream. Writer function. I found this happens when you try, for example, to put a Date. Java2s. com Emailinfo at java2s. New Country Midi Files. Demo Source and Support. All rights reserved. Time stamp into a filename App. Path Path. Get. Directory. Namegi. File. Names0. App. Path is a valid path from system. This was easy in VB6, just App. Path App. Path. App. B.O.B The Adventures Of Bobby Ray Zip. Path must have char at the end. San Diego State University Joint Phd Mba Program. Date. Time Date. And. Time. Now. To. String fails Stream. Writer. has characters. File. Out DataSummary Date. Time. dat. New. File. Out. S Path. CombineApp. Path, File. Out. Using sw As Stream. Writer New Stream. WriterNew. File. Out. S, True true to append. Write. LineNew. File. Out. S. sw. Dispose. One way to prevent this trouble is to replace problem characters in New. File. Out. S with benign ones clean the File output file string New. File. Out. S so Stream. Writer will work. New. File. Out. S New. File. Out. S. Replace, replace with. New. File. Out. S New. C DataGridView Database Operations The DataGridView can display data in Bound mode, unbound mode and Virtual mode. Bound mode is suitable for managing data using. Here Mudassar Ahmed Khan has explained how to add CheckBox Column to DataGridView control in Windows Forms WinForms application using C and VB. Net. PDF files that contain the Visual Studio 2005 documentation. File. Out. S. Replace, replace with. File. Name. Path string New. File. Out. S, Stream. Writer will not throw an Unhandled exception. Hope this saves someone some headaches. QZT4zbs_E/0.jpg' alt='Save Datagridview To Xml File C#' title='Save Datagridview To Xml File C#' />If you are trying to save a file to the file system. Path. Combine is not bullet proof as it wont help you if the file name contains invalid characters.