C++ how to make variable output in MessageBox?

Question

C++ / C#

private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) {
    double x = 5;
    MessageBox::Show(x);
  };

Here is a simple piece of code. Beats the error "There are no instances of the overloaded function 'System::Windows::Forms::MessageBox::Show' matching the argument list".
Tell me what's wrong? Maybe I didn't connect something?

Answer 1

Use Convert::ToString()