Client Storage for Silverlight Silverlight provides two classes, one is IsolatedStorage and another is DataContractSerializer . Silverlight provides IsolatedStorage class to store data at client machine. With isolated storage, data is always isolated by user and by assembly. Credentials such as the origin or the strong name of the assembly determine assembly identity. Data can also be isolated by application domain, using similar credentials. DataContractSerializer class, which is used to serialize and deserialize instances of a type into an XML stream or document. For example, you can create a type named Person with properties that contain essential data, such as a name and address. You can then create and manipulate an instance of the Person class and write all of its property values in an XML document for later retrieval, or in an XML stream for immediate transport. Most important, the DataContractSerializer is used to serialize and deserialize data sent in Silverlight version 2 m