VB.NET Language features

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Dutch Dasanaike {LION}

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Copyright ©2004 and Distribution Rights Held by DotNetTechnology, LLC. This material is exclusively used by DotNetTechnology, LLC Consultants as a teaching aid. Any unauthorized usage including teaching, copying, and redistribution is strictly prohibited. .NET Programming with VB.NET Session 2 Dutch Dasanaike November 2004

Section Objectives ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What Applications Can Be Built with VB.NET? ,[object Object],.NET framework VB.NET ASP.NET Web Forms Windows Forms

Other VB.NET Applications ,[object Object],.NET framework Web Services Windows Services Networking applications Wireless applications

VB.NET Language Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Inheritance in VB.NET Automobile Truck Car ,[object Object],[object Object],Doors Color Start() Stop() LoadBed() Load Trunk()

Type Safety in VB.NET ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Structured-Exception Handling in VB.NET ,[object Object],Try InsertRecord(‘jdoe@hotmail.com’,‘John’,’Doe’) Catch exp as System.Exception LogError(exp.Message) End Try

Method Overloading in VB.NET ,[object Object],[object Object],Public Overloads Function GetCustomer(id as Integer) _ as Customer ‘ Return Customer object based upon id End Function Public Overloads Function GetCustomer(fname as String, _ lname as String) as Customer ‘ Return Customer object based upon first and last name End Function

Method Overriding in VB.NET ,[object Object],Automobile Truck Doors Color Start() Stop() Start() Overrides

Parameterized Constructors in VB.NET ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Events in VB.NET ,[object Object],[object Object],[object Object],[object Object],[object Object],Worker WorkPerformed Event Raised

[object Object],[object Object],[object Object],[object Object],[object Object],Delegates in VB.NET Delegate Worker (WorkPerformed event) WorkPerformed event raised Boss WorkPerformed event handled

Attributes in VB.NET ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],. NET attribute

Multithreading in VB.NET ,[object Object],[object Object],[object Object],Form runs on one thread. Search runs on a separate thread.

VB6 vs. VB.NET ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Changes Between VB6 and VB.NET ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Changes Between VB6 and VB.NET (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Migrating from VB6 to VB.NET Visual Studio.NET has a built-in VB6 to VB.NET migration tool.

Creating a Hello World Program ,[object Object],[object Object],[object Object],[object Object],[object Object]

Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Section Review

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Section Review

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Section Review

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Section Review

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VB.NET Language features

1. Copyright ©2004 and Distribution Rights Held by DotNetTechnology, LLC. This material is exclusively used by DotNetTechnology, LLC Consultants as a teaching aid. Any unauthorized usage including teaching, copying, and redistribution is strictly prohibited. .NET Programming with VB.NET Session 2 Dutch Dasanaike November 2004

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19. Migrating from VB6 to VB.NET Visual Studio.NET has a built-in VB6 to VB.NET migration tool.

20. Migrating from VB6 to VB.NET (cont.)

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