CODEWITHSUNDEEP
c#asp.netactive-directory
user1374985
user1374985

Reputation:

How do I retrieve a list of users from Active Directory using C#?

I want to create an online user directory and pull the information directly from Active Directory. So after hours of searching I came up with this solution(which is not much of a solution). When I run my program all it does is spin like it wants to do something but after all of the spinning it gives me a blank white page. 

protected void btnClick_Click1(object sender, EventArgs e)
{
    string dom = txtDomainName.Text;

    System.DirectoryServices.DirectoryEntry entry = new System.DirectoryServices.DirectoryEntry("LDAP://" + dom);
    System.DirectoryServices.DirectorySearcher mySearcher = new System.DirectoryServices.DirectorySearcher(entry);
    mySearcher.Filter = ("(objectClass=user)");
    Console.WriteLine("Listing of users in the Active Directory");
    Console.WriteLine("========================================");


    foreach (System.DirectoryServices.SearchResult resEnt in mySearcher.FindAll())
    {
        try
        {
            System.DirectoryServices.DirectoryEntry de = resEnt.GetDirectoryEntry();
            Console.WriteLine("Display Name  : " + de.Properties["DisplayName"].Value.ToString());
            Console.WriteLine("Email         : " + de.Properties["Mail"].Value.ToString());
            Console.WriteLine("Title         : " + de.Properties["Title"].Value.ToString());
            Console.WriteLine("User Name     : " + de.Properties["sAMAccountName"].Value.ToString());
            Console.WriteLine("First Name    : " + de.Properties["GivenName"].Value.ToString());
            Console.WriteLine("Last Name     : " + de.Properties["sn"].Value.ToString());
            Console.WriteLine("Initials      : " + de.Properties["Initials"].Value.ToString());
            Console.WriteLine("Company       : " + de.Properties["Company"].Value.ToString());
            Console.WriteLine("Department    : " + de.Properties["Department"].Value.ToString());
            Console.WriteLine("Telephone No. : " + de.Properties["TelephoneNumber"].Value.ToString());
        }
        catch (Exception ex)
        {
        }
        Console.WriteLine("===========    End of user   =============");

    }
    Console.WriteLine("===========    End of Listing   =============");
}

Please note that I know little to nothing about active directory, only that it can be use to store Employee Information and create and manage user groups. I have used C# and LDAP to create login pages that requires and verifies username and password from ID to pass authentication.

Edited The application posted requires the user to put in their domain. After I enter the domain name it should list all users or something, it just spins and gives me a white page of nothing

Upvotes: 0

Views: 1696

Answers (2)

abhi
abhi

Reputation: 3136

I tested this in a console based application. I used the Directory.Services.AccountManagement class to achieve this. In my example, I am just listing the names.

private static string SearchUsers(UserPrincipal parUserPrincipal)
{

    PrincipalSearcher insPrincipalSearcher = new PrincipalSearcher {QueryFilter = parUserPrincipal};

    PrincipalSearchResult<Principal> results = insPrincipalSearcher.FindAll();
    var builder = new StringBuilder();
    foreach (UserPrincipal p in results)
    {
        builder.AppendFormat("SamAccountName:{0}\t DisplayName:{1}\tUserPrincipal:{2}\tDescription:{3}\tEmail:{4}\tTel:{5}\n", p.SamAccountName, p.DisplayName, p.UserPrincipalName, p.Description, p.EmailAddress, p.VoiceTelephoneNumber);
    }
    return builder.ToString();
}


public static string SetPrincipal()
{
    // **Make sure you set the correct domain name** 
    var pc = new PrincipalContext(ContextType.Domain, "myCompany");
    UserPrincipal insUserPrincipal = new UserPrincipal(pc) {Name = "*"};
    return SearchUsers(insUserPrincipal);
}

Upvotes: 0

Skullomania
Skullomania

Reputation: 2215

Instead of using 

Console.WriteLine(

try

Response.Write(string.Format(

This will give you a print out and that should fix your blank page issue.

Upvotes: 1

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