run threads in c#

here is code for running threads in c#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System;
using System.Threading;

namespace create_thread
{
       class Program
    {
         public  delegate void ThreadStart();

        static void Main(string[] args)
        {
            Thread t=new Thread(new ThreadStart(Go));
            t.Start();
            Go();


        }
        static void Go()
        {
            Console.WriteLine("hello");

        }
    }
}

but here is errors

------ Build started: Project: create_thread, Configuration: Debug x86 ------
c:\users\7\documents\visual studio 2010\Projects\create_thread\create_thread\Program.cs(5,7): warning CS0105: The using directive for 'System' appeared previously in this namespace
c:\users\7\documents\visual studio 2010\Projects\create_thread\create_thread\Program.cs(17,22): error CS1502: The best overloaded method match for 'System.Threading.Thread.Thread(System.Threading.ThreadStart)' has some invalid arguments
c:\users\7\documents\visual studio 2010\Projects\create_thread\create_thread\Program.cs(17,33): error CS1503: Argument 1: cannot convert from 'create_thread.Program.ThreadStart' to 'System.Threading.ThreadStart'

Compile complete -- 2 errors, 1 warnings
Build started 10/25/2010 10:25:40 PM.
ResolveAssemblyReferences:
  A TargetFramework profile exclusion list will be generated.
GenerateTargetFrameworkMonikerAttribute:
Skipping target "GenerateTargetFrameworkMonikerAttribute" because all output files are up-to-date with respect to the input files.
CoreCompile:
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\Csc.exe /noconfig /nowarn:1701,1702 /nostdlib+ /platform:x86 /errorreport:prompt /warn:4 /define:DEBUG;TRACE /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\Microsoft.CSharp.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\mscorlib.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Core.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Data.DataSetExtensions.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Data.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Cl开发者_开发百科ient\System.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Xml.dll" /reference:"C:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\Profile\Client\System.Xml.Linq.dll" /debug+ /debug:full /filealign:512 /optimize- /out:obj\x86\Debug\create_thread.exe /target:exe Program.cs Properties\AssemblyInfo.cs "C:\Users\7\AppData\Local\Temp\.NETFramework,Version=v4.0,Profile=Client.AssemblyAttributes.cs"

Build FAILED.

Time Elapsed 00:00:00.30
========== Build: 0 succeeded or up-to-date, 1 failed, 0 skipped ==========

please help

The problem here is you're shadowing an existing type used by the Thread constructor.

public  delegate void ThreadStart(); 

This causes your code to bind to your ThreadStart instead of the version in the System.Threading namespace and hence leads to a copmilation error. Remove this definition.

The problem is that you declared your own ThreadStart delegate instead of using .NET one.

after fixing your error then delete your own definition of ThreadStart Delegate and use .net Framework version with correct signature

get rid of the declaration of the ThreadStart delegate. You also have one too many using System statements:

using System;
using System.Threading;

namespace create_thread
{
    class Program
    {        
        static void Main(string[] args)
        {
            Thread t = new Thread(new ThreadStart(Go));
            t.Start();
            Go();
        }
        static void Go()
        {
            Console.WriteLine("hello");
        }
    }
}

You should also be aware that your code will run the Go method twice - once on the main thread, and once on a background thread - so you will see "hello" twice in the console.

double using System; and remove your delegate ThreadStart

Don't know what is the purpose, but try to remove the line: public delegate void ThreadStart();