Black dash / line on visual studio 2012 left margin

Question

I google this , But didn't find the explanation for this. can someone help me explain what the black dash / line means?

thank you

Answer 1

I searched for the same thing, but stumbled upon it by accident. When you do a search on your code the 'Find Results' box appears. Highlight a line in the Find Results box and the black dash appears in the indicator margin next to the corresponding line of code in which the results were found.