How to set the value of an attribute of a regular form and forbid it to be changed?

Question

1C

I need to change the boolean type prop, set it to true and prevent it from being changed by the user. How to implement it correctly? What functions exist for this? Thank you all in advance. Do not scold for simple questions.

Answer 1

Et change

Объект = ВашаСсылка.ПолучитьОбъект();
Объект.ВашРеквизит = Истина/Ложь;
Объект.Записать(РежимЗаписи,РежимПроведения);

And to forbid changing ... well, here fantasy is needed
.