.vb code queestion

[allimbued]

This question is a silly one but I need to know. I accidentally did something in my .vb code file and the following happened

Please tell me what this is and a way to get rid of it.
Thanks

 

[jmcilhinney]

What exactly do you mean by "the following happened"? You accidentally did something and you took a screen shot? Do you mean the marker in the margin? If so then that's what you should have said. That is a bookmark. You can add them to particular lines of code and then navigate quickly between them using the Bookmarks tool bar. That same tool bar allows you to add, remove and clear them. There may well be keyboard shortcuts for those operations too but I always use the tool bar so I wouldn't know what they are.