SaveFileDialog with c#

Question

hello, i have a form with many parameters. among others i have a menu item "File" that contain 'open...' and 'Save...' when i choose the 'Save...' option i want to save all my operation so far(it`s mean that if i change any parameter or any control). and when i do open to this file i want to see all !! my changes. /////////////////////////////// for exampl: in my form i have a TextBox, suppose i write anything in the text box and i save it, now i`m close all, init my program again and use 'open' option - now, i want to see my changes in the text box. /////////////////////////////// my 'SaveFileDialog' function look like this: this.saveFileDialog = new SaveFileDialog(); this.saveFileDialog.DefaultExt = "mddb"; this.saveFileDialog.Filter = "MDDB files (*.mddb)|*.mddb|All files (*.*)|*.*" ; this.saveFileDialog.FilterIndex = 2 ; this.saveFileDialog.RestoreDirectory = true ; if(saveFileDialog.ShowDialog() == DialogResult.OK) { if((myStream = saveFileDialog.OpenFile()) != null) { ???? myStream.Close(); } } ? - means mabye there my problem thank you in advanced koby