C# Winform: Setting the file save location : <p>My program must produce files from some given data. I'm dealing with PDFs and Excel documents. How do I allow the user to set the directory where the files will be saved? I'm not referring to <code>SaveFileDialog</code> where the user must choose the directory every time. 
I want the files to automatically be saved to the directory previously specified by the user. Something to this effect:</p>

<p><a href="https://i.stack.imgur.com/BDSXE.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/BDSXE.png" alt="YTD"></a></p>

<p>Most immediate solution I can think of is to store the directory in a file and read it every time a file is to be saved.</p>

<p>I also read about <a href="https://stackoverflow.com/questions/5789252/properties-settings-default-save-where-is-that-file">Properties.Settings.Default.Save()</a>, but is it relevant to my case?  </p>
