c# - How can I know point in form have object or not? -

i want add many buttons in random position form (c#) don't these buttons overlapping, question can know if point empty or there object in point?

try out:

public partial class form1 : form {     public form1()     {         initializecomponent();     }      private random r = new random();     private list<button> buttons = new list<button>();      private void button1_click(object sender, eventargs e)     {         while (buttons.count > 0)         {             buttons[0].dispose();             buttons.removeat(0);         }          bool overlapping;         for(int = 1; <= 10; i++)         {             button btn = new button();             btn.text = i.tostring();             this.controls.add(btn);                         {                 overlapping = false;                 btn.location = new point(r.next(this.clientsize.width - btn.width), r.next(this.clientsize.height - btn.height));                 foreach(button otherbtn in buttons)                 {                     if (btn.bounds.intersectswith(otherbtn.bounds))                     {                         overlapping = true;                         break;                     }                 }             } while (overlapping);             buttons.add(btn);         }     }  }