Microsoft Dynamics CRM 2011 Security Model

Microsoft Dynamics CRM 4.0 Security Model

• Supports a licensing model for users.
• Provides users with access only to the information that they require to do their jobs
• Categorizes types of users by role and restrict access based on those roles.
• Prevents users from accessing objects that they do not own or share.
• Supports data sharing by providing the ability to grant users with access to objects that they do not own to participate in a specified collaborative effort.

Download Security Model

Create a rough model of your company’s current operational structure. For each section of your organizational layout, you should identify the approximate number of users and the types of business functions those users perform. This rough organizational map to start planning how you want to set up and configure security in your Dynamics CRM deployment.

Extension Methods, DataSet & DataReader

Extension methods help you to "add" methods to existing types without creating a new derived type, recompiling, or otherwise modifying the original type. Extension methods are a special kind of static method.

For example, let us assume Car.dll is the 3rd party DLL and source is not available.
Car Class Library - Details.CS

namespace Car
{
    public class Details
    {
        public string Wheel(string cartype)
        {
            if (cartype=="CORROLA")
                return "Two";
            if (cartype == "JEEP")
                return "Four";
            else
                return "No Wheel";
        }
    }
}