Quote:
What I have tried:
picUserimage.Source.ToString();
And what did you expect that to do?
All it does is get the Source property of the picUserImage control on the current form, convert it to a string (which will return the string "System.Windows.Media.ImageSource" because it doesn't implement ToString as it has no idea what you want) ... and then throw that string away.
Looking at this along with your other 16 questions, it's pretty clear that you aren't thinking about what you are doing, just guessing and hoping it will work, or someone else will sort it all out for you.
That's not a valid design methodology: it's unbelievably slow, inefficient, and quickly leads to two things: 1) you annoy everyone who might give you help so you run out of assistants to fix it; and 2) you fail your course / get fired because when it comes to the crunch and you can't get help (exam / boss watching you over your shoulder) it is very obvious that you know nothing about the subject.
So stop guessing, start thinking. It's much faster in the long run!