free pdf417 generator c# s BUSINESS OBJECT IMPLEMENTATION in .net C#

Creation PDF 417 in .net C# s BUSINESS OBJECT IMPLEMENTATION

Six annotations are found in the javax.annotation package. These are heavily weighted toward usage with the enterprise edition of the Java platform, but are a standard part of Java SE 6. When used, they can provide additional information to the application server.

New feature in Silverlight 4. Direct access to file system MyDocuments, MyPictures, MyVideos, and MyMusic folders on Windows platform and related folders on other platforms. No need to use open- and save-file dialog boxes. To access file system you can use System.IO namespace and related classes to manipulate directory, file, properties, path information, and read/write files. New feature in Silverlight 4. You can use user-initiated print dialog box for printing.

Console.WriteLine("String contains E: {0}", containsCharE); // wait for input before exiting Console.WriteLine("Press enter to finish"); Console.ReadLine(); } } Once again, we can see that the extension method is used just like a regular method and that we don t have to provide a value for the first parameter. We don t have access to the source code for the string class, but we have been able to neatly extend the functionality of the class by creating an extension method. Compiling and running the previous code produces the following output: String contains X: False String contains E: True Press enter to finish

Public Function Create( _ ByVal objectType As System.Type, ByVal criteria As Object, _ ByVal context As Server.DataPortalContext) As Server.DataPortalResult _ Implements Server.IDataPortalServer.Create Return Portal.Create(objectType, criteria, context) End Function Public Function Fetch( _ ByVal criteria As Object, _ ByVal context As Server.DataPortalContext) As Server.DataPortalResult _ Implements Server.IDataPortalServer.Fetch Return Portal.Fetch(criteria, context) End Function Public Function Update( _ ByVal obj As Object, _ ByVal context As Server.DataPortalContext) As Server.DataPortalResult _ Implements Server.IDataPortalServer.Update Return Portal.Update(obj, context) End Function Public Function Delete( _ ByVal criteria As Object, _ ByVal context As Server.DataPortalContext) As Server.DataPortalResult _ Implements Server.IDataPortalServer.Delete Return Portal.Delete(criteria, context) End Function Public ReadOnly Property IsServerRemote() As Boolean _ Implements IDataPortalProxy.IsServerRemote Get Return True End Get End Property End Class In fact, the data methods themselves are identical. This is because the Portal property abstracts the creation of the portal object itself, and because .NET Remoting offers a feature called location transparency, which means code can call methods on a client-side proxy as though the methods were being called directly on the server-side object. The fact that the method call is actually relayed across the network is transparent to the client code. The Portal property itself uses Activator.GetObject() to create an instance of a .NET Remoting proxy for the server-side object:

AsReadOnly BinarySearch (various overloads) Clear Clone ConstrainedCopy generic ConvertAll Copy CopyTo CreateInstance Equals

s Note It might seem like the RuleArgs parameter should just be of type MaxLengthRuleArgs. But it is important to remember that this method must conform to the RuleHandler delegate defined in 3; and that defines the parameter as type RuleArgs.

Name = "oranges", ItemsInStock = 10, PricePerItem = 20 }; // use the postfix increment operator Product sum = p1 + 20; // print out the number of items in stock Console.WriteLine("Items in stock: {0}", sum.ItemsInStock); // wait for input before exiting Console.WriteLine("Press enter to finish"); Console.ReadLine(); } } These statements create a Product object and use the addition operator to add a numeric literal value of 20 to it. Compiling and running this code produces the following results: Items in stock: 30 Press enter to finish The result of a binary operator can be an entirely different type to the parameters, as demonstrated by Listing 8-20. Listing 8-20. Returning Another Object Type from a Binary Operator class Product { public string Name { get; set; } public int ItemsInStock { get; set; } public double PricePerItem { get; set; } public static int operator +(Product p1, string str) { return p1.ItemsInStock + int.Parse(str); } } This operator lets us sum a Product object and a string. The string is parsed into an int, which is then added to the value of the Product.ItemsInStock property and returned as an int result. This is a pretty useless operator, but it does illustrate the flexibility of the custom operator feature, which gives you the freedom to implement as many different operators as you need to, each of which you can tailor to make sense for your objects.