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    copied!<p>You can condense them all down to:</p> <pre><code>protected T GetClient&lt;T&gt;(params object[] constructorParams) { return (T)Activator.CreateInstance(typeof(T), constructorParams); } </code></pre> <p>Call it using:</p> <pre><code>AdminClient ac = GetClient&lt;AdminClient&gt;(CurrentUser); LookupClient lc = GetClient&lt;LookupClient&gt;(CurrentUser); SecurityClient sc = GetClient&lt;SecurityClient&gt;(); </code></pre> <p>etc.</p> <p>If you had all of your clients utilizing the CurrentUser (currently your example suggests that SecurityClient does not), you could remove the parameter from the method and have just:</p> <pre><code>protected T GetClient&lt;T&gt;() { return (T)Activator.CreateInstance(typeof(T), CurrentUser); } </code></pre> <p>Which simplifies your calls:</p> <pre><code>AdminClient ac = GetClient&lt;AdminClient&gt;(); </code></pre> <p>But then you lose the ability to use it on clients that don't require the CurrentUser context...</p> <p><strong>Addendum:</strong> In response to your comment regarding the requirement of a parameterless constructor. I've got some demo code that I've tested to prove there isn't a requirement for a parameterless constructor:</p> <pre><code>public class UserContext { public string UserName { get; protected set; } public UserContext(string username) { UserName = username; } } public class AdminClient { UserContext User { get; set; } public AdminClient(UserContext currentUser) { User = currentUser; } } public class SecurityClient { public string Stuff { get { return "Hello World"; } } public SecurityClient() { } } class Program { public static T CreateClient&lt;T&gt;(params object[] constructorParams) { return (T)Activator.CreateInstance(typeof(T), constructorParams); } static void Main(string[] args) { UserContext currentUser = new UserContext("BenAlabaster"); AdminClient ac = CreateClient&lt;AdminClient&gt;(currentUser); SecurityClient sc = CreateClient&lt;SecurityClient&gt;(); } } </code></pre> <p>This code runs without any exceptions and will create the AdminClient which doesn't have a paremeterless constructor, and will also create the SecurityClient which only has a parameterless constructor.</p>
 

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