How to: Obtain Type and Member Information from an Assembly

The System.Reflection namespace contains many methods for obtaining information from an assembly. This section demonstrates one of these methods. For additional information, see Reflection Overview.

The following example obtains type and member information from an assembly.

Example

Imports System
Imports System.Reflection

Class Asminfo1
   
   Shared Sub Main()
      Console.WriteLine("Reflection.MemberInfo")
      
      'Get the Type and MemberInfo. 
      'Insert the fully qualified class name inside the quotation marks in the following statement.
      Dim MyType As Type = Type.GetType("System.IO.BinaryReader")
      Dim Mymemberinfoarray As MemberInfo() = MyType.GetMembers((BindingFlags.Public Or BindingFlags.NonPublic Or BindingFlags.Static Or BindingFlags.Instance Or BindingFlags.DeclaredOnly))
      
      'Get and display the DeclaringType method. 
      Console.Write(vbCrLf & "There are {0} documentable members in ", Mymemberinfoarray.Length)
      Console.WriteLine("{0}.", MyType.FullName)
      
      Dim Mymemberinfo As MemberInfo
      For Each Mymemberinfo In  Mymemberinfoarray
         Console.WriteLine(Mymemberinfo.Name)
      Next Mymemberinfo
   End Sub 
End Class 

using System;
using System.Reflection;
class Asminfo1
{ 
  public static void Main(string[] args)
   { 
   Console.WriteLine ("\nReflection.MemberInfo");

      //Get the Type and MemberInfo. 
      //Insert the fully qualified class name inside the quotation marks in the following statement.
      Type MyType =Type.GetType("System.IO.BinaryReader"); 
      MemberInfo[] Mymemberinfoarray = MyType.GetMembers(BindingFlags.Public|BindingFlags.NonPublic|BindingFlags.Static|BindingFlags.Instance|BindingFlags.DeclaredOnly); 

      //Get and display the DeclaringType method. 
      Console.Write("\nThere are {0} documentable members in ", Mymemberinfoarray.Length);
      Console.Write("{0}.", MyType.FullName); 

      foreach (MemberInfo Mymemberinfo in Mymemberinfoarray) 
          { 
           Console.Write("\n" + Mymemberinfo.Name);
          }
   }
}

See Also

Concepts

Programming with Application Domains

Reflection Overview

Other Resources

Hosting the Common Language Runtime

Using Application Domains

Change History

Date	History	Reason
December 2009	In Visual Basic code, removed overloaded Sub Main and included line feeds as well as carriage returns.	Content bug fix.