accessing controls on parentform from childform

Question

I want to change text in textbox on parentform from childform. I set textbox

modifiers= public i have extra written a function in parentform

publ         


        

Answer 1

Since ParentForm will return a Form and not your form, you need to cast it before you can access any of your custom properties:

((MyForm)this.ParentForm).textbox = "new text!";

Additionally, you are setting the whole control, not just the text.

Try this, to expose the text property only:

public string txtbox
{
  get
  {
    return  mybox.Text;
  }
  set
  {
    mybox.Text = value;
  }
}