Event Handling

Question

Hi there i am trying to use Error Handling to wait for a File Not Found error try { TextReader tr = new StreamReader(Path); } catch(FileNotFoundException fnf) { StatusLabel.Text = File Not Found !; } If i do this and try and run the program it can not see the TextReader tr instance further down in my code... Any ideas ? Thanks in advance

Alan · Answer

If you only want it to be visible within the containing method then define the TextReader variable outside the try statement: TextReader tr = null; try { tr = new StreamReader(Path); } catch(FileNotFoundException fnf) { StatusLabel.Text = File Not Found !; } if (tr != null) { // do something with text reader } If you want it to be visible in other methods then you'll need to define it at class level.