Question

I have a Windows Forms application containing around 15 different buttons which on-click should display either 1 or 0.

Now the problem:
Currently i’m repeating almost the exact same code for each and every button and that works fine, but what i would like to do is some method that knows which button i’m currently pressing and then i would like to send that buttons name as a parameter to the function which contains the code.

This is how i’m doing it now:

    private: System::Void button1Click(System::Object^  sender, System::Windows::Forms::MouseEventArgs^  e) { 
   //CODE HERE
 }
    private: System::Void button2Click(System::Object^  sender, System::Windows::Forms::MouseEventArgs^  e) { 
   //SAME CODE HERE
 }

And this goes on until button 15…

What i would like to do:

private: System::Void justClicked(System::Object^  sender, System::Windows::Forms::MouseEventArgs^  e) { 
       //CODE HERE with justClicked as the buttons name.
     }

Answer 1

The sender parameter, though defined as an object, is the reference to the object that caused the event. All you have to do is cast sender to a Button, or Control, to get the name or whatever property you need.

You also just need a single event handler. All your buttons’ Click events should be assigned to the same event handler function.