C#.NET/Office: specifying default file location when saving

[Zerotonine]

Hello. I have a new question. I am coding an add-in for MS Word. By pressing a button a Save File Dialog pops up. The user can simply save the current Word file. I have taken two approaches; each has it's own problems. My first approach would look something like this (this is code found in a MSDN tutorial):

public void OnAction(IRibbonControl control)
        {
            Stream myStream;

            switch (control.Id)
            {               
                case "Opslaan":
                    SaveFileDialog saveFileDialog = new SaveFileDialog();
                    saveFileDialog.Filter = "Word-document (*.docx)|*.docx|Word 97-2003-werkmap (*.doc)|(*.doc)";
                    saveFileDialog.FilterIndex = 1;
                    saveFileDialog.RestoreDirectory = true; 
                    saveFileDialog.InitialDirectory = @"C:\Temp\waldo";

                    if (saveFileDialog.ShowDialog() == DialogResult.OK)
                    {
                        if ((myStream = saveFileDialog.OpenFile()) != null)
                        {
                            // I have no idea what to do here
                        }
                    }
                    break;
                    .
                    .
                    .
                    etc.
         }
}

The SaveFileDialog pops up, but I can't save the file. I've tried several approaches, but how can I just save the Word document? In this code snippet I can specify the default file location. I tried a different approach, which also pops up a SaveFileDialog and DOES actually save the file. But the problem is I don't know how to change the default save location:

this.applicationObject.ActiveDocument.Save();


// SaveFileDialog pops up, but starts in My Documents as default location. I'd like to change this...

Either approach is OK, but I just want to Save a file in a custom default location. any help is appreciated...

Edited August 7, 2008 by Zerotonine