To get information of all users residing in the Active directory recursively and find user is enable to disable

This post will explain how to get information of all users from Active Directory. Also this post will demonstrate the use of recursion.

//datatable to store users information
DataTable objDTAD = new DataTable("export");
objDTAD.Columns.Add(new DataColumn("Logon Name"));
objDTAD.Columns.Add(new DataColumn("Name"));
objDTAD.Columns.Add(new DataColumn("Company"));
objDTAD.Columns.Add(new DataColumn("Email Address"));
objDTAD.Columns.Add(new DataColumn("Account Enabled"));

private void GetUserInfo(string path, string ou)
{
//path is your LDAP path of AD
DirectoryEntry de = new DirectoryEntry(path);

foreach (DirectoryEntry child in de.Children)
{
if (child.SchemaClassName == "organizationalUnit")
{
//calling the same method if a organizationalUnit found under the path provided
GetUserInfo(child.Path, child.Name);
}
else if (child.SchemaClassName == "user")
{
DataRow objDRAD = objDTAD.NewRow();
objDTAD.Rows.Add(objDRAD);
objDRAD[0] = ValidateProperty(child.Properties["SAMAccountName"]);
objDRAD[1] = ValidateProperty(child.Properties["cn"]);
objDRAD[2] = ou.Replace("OU=", "");
objDRAD[3] = ValidateProperty(child.Properties["mail"]);
int userAccountControl = Convert.ToInt32(child.Properties["userAccountControl"][0]);
if ((userAccountControl & 2) > 0)
{
objDRAD[4] = "Disabled";
}
else
{
objDRAD[4] = "Enabled";
}
}
}
}
//to validate users account property is having value.
private string ValidateProperty(PropertyValueCollection coll)
{
if (coll.Count == 0)
return "";
else
{
return coll[0].ToString();
}
}