Readonly
methodsToggles the readonly state of the widget. When the widget is readonly it doesn't allow user input.
There is a difference between disabled and readonly mode. The value of a disabled widget is not posted as part of a
formwhereas the value of a readonly widget is posted.
Parameters:readonlyBoolean
If set to true, the widget will not allow user input. If set to false, the widget will allow user input.