You need to add a reference in your project to an assembly where that namespace is defined. If you are using VS.NET: 1. Right click on the References folder on your project. 2. Select Add Reference. 3. Select the .NET tab (or select the Browse button...

Delegates require information about the type that the method is associated with in order to make a call. In a single app-domain, this isn't a problem, because the server (the object firing the events) has access to the type information for the client...

If you set a property on a Windows Forms control which forces the creation of the control (e.g. the SelectedIndex property on the ComboBox class), the control (and perhaps the rest of the form) will not render with visual styles enabled. The resolution...

Q: Why aren't reference types polymorphic? A: Consider the following code: using System; class Dog { public string Name; } class Test { public static void Swap(ref object a, ref object b) { object temp; temp = a; a = b; b = temp; } public static...