Suppose there are a number of elements on a form: label1 , label2 , etc. The user enters the number of the field that he wants to change, and his value. How to access a field by a specific number without using a switch ?

  • one
    What graphic framework do you use? - VladD
  • @VladD using CLR - Elmir pm
  • And what is a graphical framework? (By CLR, you mean probably C ++ / CLI.) - VladD 4:16 pm
  • @VladD Windows Forms - Elmir 4:21 pm
  • Yeah, Windows Forms. - VladD 4:21 pm

2 answers 2

The container (form, panel, etc.) containing labels (label) has a Controls property that returns a collection of child controls. Make a foreach on this set and you can access each tag in turn.

If you need to get a specific label by number, it would be more correct to create an array (or even an int -> Label dictionary), fill it once with the specified labels, and then access the index.

There is another option: use ControlCollection::Find on the list, which will return the Controls property mentioned above and directly use the name label1 , label2 , etc. In general, there are quite a few options.

    I figured it out myself. The main problem was that you cannot add labels to a regular array of type Label^ , and to the vector as well. But you can do this:

     array <Label^>^ labels={label1,label2,...};

    After that, you can refer to the labels as follows:

     labels[i]->Visible=0;

    And, accordingly, run on them in a cycle.