Access Form controls from static class [duplicate]

Answer 1

You can declare in the static form:

private static MyformType myform;

public static void setmyform(MyformType myform1)
{
  myform=myform1;
}

although, that concept generally isn't so good, maybe better way would be passing your form as argument to functions called in the static class, and make your contorl which should be accesed public, by chanign acces modifier in propertis box of the form

public static void EgClearText(Textbox tb)
{
  tb.Text="";
}
public static void DoSomethingElseWithTheForm(MyformType myform)
{
  myform.someOtherContol.Visible=false;
}