By Dhananjay Katre, Prashant Halari, Narayana Rao Surapaneni, Manu Gupta, Meghana Deshpande
* the right way to migrate your legacy software program to the strong Microsoft .NET framework * presents for an entire, effective, and stylish migration-with no surprises * Covers the applied sciences you wish: visible simple, visible C++, and lively Server Pages circulate to .NET-and deliver your legacy apps along!Microsoft's .NET internet prone platform deals quite a lot of fascinating new programming possibilities. the hot equipment present in .NET additionally suggest you may be in for many aggravation and wasted time-unless you might have a confirmed migration plan in position to your legacy functions. In Migrating to .NET, topic specialists Dhananjay Katre, Prashant Halari, Narayana Rao Surapaneni, Manu Gupta, and Meghana Deshpande advisor you each step of ways, from making plans to migration to follow-through. * Migrate legacy visible easy, visible C++, and ASP functions to .NET * attracts at the real-world adventure of .NET migration specialists * wealthy with code examples and case reviews * Covers part migration and interoperability issuesPart of the built-in .NET sequence from item recommendations and Prentice corridor PTR.
Read or Download Migrating to .NET: A Pragmatic Path to Visual Basic .NET, Visual C++ .NET, and ASP.NET PDF
Similar visual basic books
Visible BasicR . internet strength Coding is the skilled developer's advisor to learning complicated visible uncomplicated . internet recommendations. Paul Kimmel saves readers time and cash via supplying thorough causes of crucial themes so that you can fast commence developing strong courses that experience fewer insects. the writer additionally demonstrates very important options by utilizing various real-world examples that come with operating code that has been established opposed to visible uncomplicated .
Within the authors' phrases, "Our major objective in penning this ebook is to jot down the main complicated publication but to be had" on Microsoft visible simple. Written from the point of view of the pro visible easy developer, complex MICROSOFT visible uncomplicated, 2d variation explores all of the probabilities open to a developer utilizing visible simple as his or her fundamental client/server improvement device.
Are you hesitant emigrate to visible Studio(r) 2005? probably you are prepared to improve to visible simple 2005 yet suppose a piece beaten through ADO. internet 2. zero and the visible info instruments of this generation. during this hands-on advisor, i will proportion with you the simplest practices, the newest beneficial properties, and complicated information administration suggestions with visible easy 2005 and SQL Server or SQL Server convey 2005.
Visible simple and visible easy . internet for Scientists and Engineers starts off with an summary of the visible easy and visible simple . internet IDEs, their very important features, and the way the advance environments could be manipulated to fit builders' wishes. After a high-quality dialogue of VB and VB . web varieties, controls, and namespaces, writer Christopher Frenz exhibits you ways to place controls to paintings through utilising different regulate occasions.
Extra resources for Migrating to .NET: A Pragmatic Path to Visual Basic .NET, Visual C++ .NET, and ASP.NET
However this is not a structured way to handle errors. NET offers structured error handling. It has introduced the try, catch, and finally blocks. The code, which can potentially throw an error, is put in a try block. Errors are simply objects of type Exception. Every try block should have a corresponding catch block. If an exception arises in the try block, the code throws an exception. This exception is caught and handled by the catch block. The catch block can handle the exception, or it can rethrow the exception for some higher-level code to handle it.
Rather the operations are empty. Classes, which implement the interfaces, must provide their own implementation. NET language to implement dynamic polymorphism. At runtime only a reference to the interface is required. The same reference can be made to point to the different objects in the classes that implement this interface. The codes from these objects can be executed depending on the object that the interface points to. This means that the objects can be accessed using a common reference variable of type interface and the same methods can call the various objects that implement these interfaces.
Normally null values are obtained when database operations are involved. NET offers a database-programming model, which test fields explicitly for null before retrieving their values. Variants containing null are marshalled into the CLR as objects of type DBNull. 0. The following code snippet shows an example of the DefInt type: DefInt A-D Private Sub Form_Click() AVariable = 1 BVariable = "Error"'this will give an error MsgBox (AVariable) MsgBox (BVariable) End Sub The DefType statements are used at the module level.
Migrating to .NET: A Pragmatic Path to Visual Basic .NET, Visual C++ .NET, and ASP.NET by Dhananjay Katre, Prashant Halari, Narayana Rao Surapaneni, Manu Gupta, Meghana Deshpande