.NET (Core and Framework)

class SomeClass
{
    void SomeMethod()
    { }
    // Type 'SomeClass' already defines a member called 'SomeMethod' with the same parameter types
    static void SomeMethod()
    { }
}

Luc Pattyn wrote:

a new twist to the old forums?

<br />
<snippetqwer>123<br />
fgfg<br />
sggfbsgbgb<br />
</snippetqwer><br />

ThomasPep wrote:

If everything else fails read the manual

using System;
using System.Collections.Generic;

HashSet<HashSet<int>> setA = new .....; 
HashSet<int> subSetB = new HashSet<int>(new int[]{....});
setA.Contains(subSetB)

public partial class Form1 : Form
   {
       public Form1()
       {
           InitializeComponent();
       }

       private void button1_Click(object sender, EventArgs e)
       {

           Thread t = new Thread(delegate()
           {
               DoWork();
           });

           try
           {
               t.Start();
           }
           catch (Exception ex)
           {
               commonExceptionHandler(ex);
           }
       }

       private void button2_Click(object sender, EventArgs e)
       {
           Thread t = new Thread(delegate()
           {
               try
               {
                   DoWork();
               }
               catch (Exception ex)
               {

                   commonExceptionHandler(ex);
               }
           });
           t.Start();
       }
       private void commonExceptionHandler(Exception ex)
       {
           if (this.InvokeRequired)
           {
               this.Invoke(new Action(() => commonExceptionHandler(ex)));
           }
           else
           {
               //your code here
               MessageBox.Show("[got it!] "+Environment.NewLine+ ex.ToString());
           }
       }

       private void DoWork()
       {
           throw new InvalidOperationException("this is test");
       }
   }