I am trying to implement a web part that shows a given folder within a document library. Is there anyway that I can set a certain folder to be the starting point in a webpart? I am trying to also do this without displaying anything except the document library/folder.
You can do this by changing the link that users use to navigate to the page with the webpart in it.
Below is an example of a link I send out via email to users of a form for an item which contains a document webpart. As you can see I send a custom form, select the folder to display and use a non-default view on it.
The easiest way I have found to get the right url is to simply navigate and display the information manually then copy paste the url to where it is needed.