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Find all classes within a Namespace

This little snippet will return a list populated with all the classes in the Namespace you provide it

Submitted By: PsychoCoder

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Views: 8,191

Language: C#

Last Modified: December 20, 2007

Instructions: Pass the method the Namespace you want to search and it will return a list populated with all classes in that Namespace

Snippet

//add these references to your class
using System.Reflection;
using System.Collections.Generic;
/// <summary>
/// Method to populate a list with all the class
/// in the namespace provided by the user
/// </summary>
/// <param name="nameSpace">The namespace the user wants searched</param>
/// <returns></returns>
static List<string> GetAllClasses(string nameSpace)
{
//create an Assembly and use its GetExecutingAssembly Method
//http://msdn2.microsoft.com/en-us/library/system.reflection.assembly.getexecutingassembly.aspx
Assembly asm = Assembly.GetExecutingAssembly();
//create a list for the namespaces
List<string> namespaceList = new List<string>();
//create a list that will hold all the classes
//the suplied namespace is executing
List<string> returnList = new List<string>();
//loop through all the "Types" in the Assembly using
//the GetType method:
//http://msdn2.microsoft.com/en-us/library/system.reflection.assembly.gettypes.aspx
foreach (Type type in asm.GetTypes())
{
if (type.Namespace == nameSpace)
namespaceList.Add(type.Name);
}
//now loop through all the classes returned above and add
//them to our classesName list
foreach (String className in namespaceList)
returnList.Add(className);
//return the list
return returnList;
}

Copy & Paste

//add these references to your class
using System.Reflection;
using System.Collections.Generic;

/// <summary>
/// Method to populate a list with all the class
/// in the namespace provided by the user
/// </summary>
/// <param name="nameSpace">The namespace the user wants searched</param>
/// <returns></returns>
static List<string> GetAllClasses(string nameSpace)
{
    //create an Assembly and use its GetExecutingAssembly Method
    //http://msdn2.microsoft.com/en-us/library/system.reflection.assembly.getexecutingassembly.aspx
    Assembly asm = Assembly.GetExecutingAssembly();
    //create a list for the namespaces
    List<string> namespaceList = new List<string>();
    //create a list that will hold all the classes
    //the suplied namespace is executing
    List<string> returnList = new List<string>();
    //loop through all the "Types" in the Assembly using
    //the GetType method:
    //http://msdn2.microsoft.com/en-us/library/system.reflection.assembly.gettypes.aspx
    foreach (Type type in asm.GetTypes())
    {
        if (type.Namespace == nameSpace)
            namespaceList.Add(type.Name);
    }
    //now loop through all the classes returned above and add
    //them to our classesName list
    foreach (String className in namespaceList)
        returnList.Add(className);
    //return the list
    return returnList;
}

Comments
Public_account 2008-02-22 18:35:09
cool idea, however I don't see the point of the two lists. You are creating namespaceList, then iterating it to create returnList. You can eliminate the second loop and just return namespaceList.