Where can i get the GUID value the interface and class for creating DLL, C#

Question

Where can I get the GUID value of the interface and of the class for creating DLL in C#? I use Viusal Studio 2005.Please help.?

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;

namespace Wrapper
{
[Guid("")] => Where can i get this???
[InterfaceType(ComInterfaceType.InterfaceIsIDispatch)]
public interface _Service
{
    [DispId(1)]
    SearchResponse ExecuteSearch();
}

[Guid("")] => Where can i get this???
[ClassInterface(ClassInterfaceType.None)]
[ProgId("Wrapper.Service")]
public class Ebil : _Service
{
FactService ew;

    public Ebil()
    {
        ew = new FactService();

    }

    public SearchResponse ExecuteSearch(SearchRequest searchRequest)
    {
        return ew.ExecuteSearch(searchRequest);
    }

} }

Answer 1

Use a GUID-Generator of your choice, or follow this link.

---

GuidAttribute Class

Supplies an explicit System.Guid when an automatic GUID is undesirable.

It only has to be compatible with the Constructor of the Guid class:

The string passed to the attribute must be in a format that is an acceptable constructor argument for the type Guid. To avoid conflicts with the type Guid, use the long name GuidAttribute explicitly. Only use an explicit GUID when a type must have a specific GUID. If the attribute is omitted, a GUID is assigned automatically.

Answer 2

The GUID property of the Type class. Try

typeof(_Service).GUID;
typeof(Ebil).GUID;