A: 

All you have to do is change it's location:

YourControl.Location = new Point(50, 20)
AKoran
perhaps you didn't read the question.
serhio
Wow, so you down vote? nice. I was just trying to help!
AKoran
@serhio, your wording in the question didn't make it very clear. It's courteous to first add a comment providing more information or to update the question.
Ash
The down vote is for an incorrect answer. My answer was not incorrect based on your question. You said "I want to move a control in panel1 to the Red Line end." The code above moves a control to the end of the line. It's pretty clear from the comments on your post that others were sure what you were asking anyways. Go to any other posts on here, do you see people down voting every answer that wasn't accepted?
AKoran
sorry, man, but the question was about moving a control to a **floating** location. Everybody, I suppose, who developped the smallest WinForm app. know how to change a control location.
serhio
Thanks for starting to go to my other posts and down voting me. Class act, dude!
AKoran