Remove and Replace a visual component at runtime

Question

Is it possible to, for instance, replace and free a TEdit with a subclassed component instantiated (conditionally) at runtime? If so, how and when it should be done? I\'ve t

Answer 1

You have to call RemoveControl of the TEdit's parent to remove the control. Use InsertControl to add the new control.

var Edit2: TEdit;
begin
  Edit2 := TEdit.Create(self);
  Edit2.Left := Edit1.Left;
  Edit2.Top := Edit2.Top;
  Edit1.Parent.Insertcontrol(Edit2);
  TWinControl(Edit1.parent).RemoveControl(Edit1);
  Edit1.Free;
end;

Replace TEdit.Create to the class you want to use, and copy all properties you need like I did with Left and Top.