C # How to handle the position of the child form displayed in the parent form

I have been working on a winforms project for the past few days. When I was almost ready to run it, I suddenly found a problem, that is, how to control the position of the child form in the parent form.

After a period of searching, I found a solution. I hope this will be helpful to all programming friends.

In fact, a very simple setting can meet this requirement, that is, to set the form attribute startposition. Note: it is to set this attribute in the child form and find startposition (start position) in the attribute window ), click this attribute to set the desired location. After setting, run the parent form and click the relevant link to view the desired effect.