How can I better request multiple domains in Active Directory using C #?

I am trying to deploy LDAP / AD search only to search the current registered domain to search all domains in AD. The method takes a query string and returns and returns an LDAPInformation object.

While I ask, is there a better way to search for a name than this way? This is a user’s hostility due to the need to use wildcards if you are looking for a person by last name (example: Doe *).

    public static LDAPInformation[] GetGlobalAddressListVIAName(string nameQuery)
    {
        var currentForest = Forest.GetCurrentForest();
        var globalCatalog = currentForest.FindGlobalCatalog();

        using (var searcher = globalCatalog.GetDirectorySearcher())
        {
            using (var entry = new DirectoryEntry(searcher.SearchRoot.Path))
            {
                searcher.Filter = "(&(mailnickname=*)(objectClass=user)(displayName=" + nameQuery + "))";
                searcher.PropertyNamesOnly = true;
                searcher.SearchScope = SearchScope.Subtree;
                searcher.Sort.Direction = SortDirection.Ascending;
                searcher.Sort.PropertyName = "displayName";
                return searcher.FindAll().Cast<SearchResult>().Select(result => new LDAPInformation(result.GetDirectoryEntry())).ToArray();
            }
        }
    }

Here is the object:

    class LDAPInformation
{
    internal LDAPInformation(DirectoryEntry entry)
    {
        //Section: HASH
        this.sAMAccountName = (string)entry.Properties["sAMAccountName"].Value;

        //Section: Email
        this.Mail = (string)entry.Properties["mail"].Value;

        //Section: Organziation
        this.Description = (string)entry.Properties["description"].Value;
        this.Company = (string)entry.Properties["company"].Value;
        this.Title = (string)entry.Properties["title"].Value;
        this.Department = (string)entry.Properties["department"].Value;

        //Section: Name
        this.DisplayName = (string)entry.Properties["displayName"].Value;
        this.FirstName = (string)entry.Properties["firstName"].Value;
        this.MiddleName = (string)entry.Properties["middleName"].Value;
        this.LastName = (string)entry.Properties["lastName"].Value;

        //Section: Address
        this.StreetAddress = (string)entry.Properties["streetAddress"].Value;
        this.City = (string)entry.Properties["city"].Value;
        this.State = (string)entry.Properties["state"].Value;
        this.PostalCode = (string)entry.Properties["postalCode"].Value;
        this.TelephoneNumber = (string)entry.Properties["telephoneNumber"].Value;
    }

    public string DisplayName
    {
        get;
        private set;
    }

    public string Mail
    {
        get;
        private set;
    }

    public string sAMAccountName
    {
        get;
        private set;
    }

    public string Description
    {
        get;
        private set;
    }

    public string Company
    {
        get;
        private set;
    }

    public string Title
    {
        get;
        private set;
    }

    public string Department
    {
        get;
        private set;
    }

    public string FirstName
    {
        get;
        private set;
    }

    public string MiddleName
    {
        get;
        private set;
    }

    public string LastName
    {
        get;
        private set;
    }

    public string StreetAddress
    {
        get;
        private set;
    }

    public string City
    {
        get;
        private set;
    }

    public string State
    {
        get;
        private set;
    }

    public string PostalCode
    {
        get;
        private set;
    }

    public string TelephoneNumber
    {
        get;
        private set;
    }
}