Question

I am having problems calling a method in C#, I keep getting the message “Method (calculate) must have a return type”.

using System.Diagnostics;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

        }
    }



    public class Hello : Form
    {
        public string test { get; set; }
        calculate();
    }


    public class Hello2 : Form
    {
        public void calculate()
        {
            Process.Start("test.exe");

        }
    }

Answer 1

calculate(); is an invalid method signature in your Hello class. It is missing the return type and it also needs a body.

At a minimum the signature should look like:

public class Hello : Form
{
    public string test { get; set; }
    void calculate() {}
}