How to Get Email Groups from Outlook (Different Active Directory Groups)

Design the Form as Following(Default.aspx)

<table>

<tr>

<td>

<asp:ListBox ID="lstGroups"runat="server"Height="520px"width="200px"AutoPostBack="true"EnableViewState="true"

onselectedindexchanged="lstGroups_SelectedIndexChanged"></asp:ListBox>

</td>

<td valign="top">

<asp:ListBox ID="lstGroupmembers"runat="server"Height="300px"Width="200px"AutoPostBack="true"></asp:ListBox>

</td>

</tr>

</table>

Default.aspx.cs

Add the following Namespaces

usingSystem.Collections.Specialized;

This namespace is used for  StringCollection

Add the following reference.

·       System.DirectoryServices.

·       System.DirectoryServices.AccountManagement.

Then u can add the namespace

using System.DirectoryServices;

using System.Configuration;

-----------------------------------------------------------------------------------------------

Write the web.config File as following.

  <appSettings>

    <add key="DomainName" value="ABC0"/>

<addkey="DefaultActiveDirectoryServer"value="LDAP://ABC0"/>

  </appSettings>

Write the following Code in Page Load

protected void Page_Load(object sender, EventArgs e)

    {

        foreach (string @group in GetGroups())

        {

            lstGroups.Items.Add(@group);

        }

    }

Write the following Methods in the Page.

public StringCollection GetGroupMembers(string strDomain, string strGroup)

   

{

        StringCollection groupMemebers = new StringCollection();

        try

        {

            DirectoryEntry ent = new DirectoryEntry("LDAP://DC=" + strDomain + ",DC=com");

            DirectorySearcher srch = new DirectorySearcher("(" + strGroup + ")");

            SearchResultCollection coll = srch.FindAll();

            foreach (SearchResult rs in coll)

            {

                ResultPropertyCollection resultPropColl = rs.Properties;

                foreach (Object memberColl in resultPropColl["member"])

                {

                    DirectoryEntry gpMemberEntry = new DirectoryEntry("LDAP://" + memberColl);

                    System.DirectoryServices.PropertyCollection userProps = gpMemberEntry.Properties;

                    object obVal = userProps["sAMAccountName"].Value;

                    if (null != obVal)

                    {

                        groupMemebers.Add(obVal.ToString());

                    }

                }

            }

        }

        catch (Exception ex)

        {

            Trace.Write(ex.Message);

        }

        return groupMemebers;

    }

public static List<string> GetGroups()

    {

        DirectoryEntry objADAM = default(DirectoryEntry);

        // Binding object.

        DirectoryEntry objGroupEntry = default(DirectoryEntry);

        // Group Results.

        DirectorySearcher objSearchADAM = default(DirectorySearcher);

        // Search object.

        SearchResultCollection objSearchResults = default(SearchResultCollection);

        // Results collection.

        string strPath = null;

        // Binding path.

        List<string> result = new List<string>();

        string Path = Convert.ToString(ConfigurationManager.AppSettings["DefaultActiveDirectoryServer"]);

        // Construct the binding string.

        strPath = Path;

        //Change to your ADserver

        // Get the AD LDS object.

        try

        {

            objADAM = new DirectoryEntry(strPath);

            objADAM.RefreshCache();

        }

        catch (Exception e)

        {

            throw e;

        }

        // Get search object, specify filter and scope,

        // perform search.

        try

        {

            objSearchADAM = new DirectorySearcher(objADAM);

            objSearchADAM.Filter = "(&(objectClass=group))";

            objSearchADAM.SearchScope = SearchScope.Subtree;

            objSearchResults = objSearchADAM.FindAll();

        }

        catch (Exception e)

        {

            throw e;

        }

        // Enumerate groups

        try

        {

            if (objSearchResults.Count != 0)

            {

                foreach (SearchResult objResult in objSearchResults)

                {

                    objGroupEntry = objResult.GetDirectoryEntry();

                    result.Add(objGroupEntry.Name);

                }

            }

            else

            {

                throw new Exception("No groups found");

            }

        }

        catch (Exception e)

        {

            throw new Exception(e.Message);

        }

        return result;

    }

========================================

protected void lstGroups_SelectedIndexChanged(object sender, EventArgs e)

    {

        string domainName = Convert.ToString(ConfigurationManager.AppSettings["DomainName"]);

        string group = lstGroups.SelectedValue;

        StringCollection groupMembers = this.GetGroupMembers(domainName, group);

        //Response.Write("The members of"+group +"are");

        lstGroupmembers.Items.Clear();

        foreach (string strMember in groupMembers)

        {

            //Response.Write("<br><b>" + strMember + "</b>");

            lstGroupmembers.Items.Add(strMember);

        }

    }