SaveFile Dialog Box

The code will demonstrate how to use the Save File Dialog Box to Save a File

private void btnSaveTextFile_Click(object sender, System.EventArgs e)
	{
		StreamWriter sw = null;

		try 
		{	
			sdlgTextFile.AddExtension = true;

			// Check to verify that the output path
			// actually exists. Prompt before
			// creating a new file? Prompt before
			// overwriting? 
			// The default is true.

			sdlgTextFile.CheckPathExists = true;

			// The default is false.

			sdlgTextFile.CreatePrompt = false;

			// The default is true.

			sdlgTextFile.OverwritePrompt = true;

			// The default is true.

			sdlgTextFile.ValidateNames = true;

			// The default is false.

			sdlgTextFile.ShowHelp = true;

			// if the user doesn't supply an extension,
			// and if the AddExtension property is
			// true, use this extension.
			// The default is "".

			sdlgTextFile.DefaultExt = "txt";

			// Prompt with the current file name
			// if you've specified it.
			// The default is "".

			sdlgTextFile.FileName = FileName;

			// The default is "".

			sdlgTextFile.Filter = "Text files (*.txt)|*.txt|" + "All files|*.*";
			sdlgTextFile.FilterIndex = 1;

			if (sdlgTextFile.ShowDialog() == DialogResult.OK)
			{
				FileName = sdlgTextFile.FileName;

				sw = new StreamWriter(FileName);
				sw.Write(txtFileContents.Text);
			}			
		}
		catch (Exception exp) 
		{
			MessageBox.Show(exp.Message, this.Text);
		}
		finally
		{
			if (sw != null) 
			{
				sw.Close();
			}
		}
	}