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In this tutorial you will learn about Using Web Reference – Adding a Web reference:, To create an ASP.NET Web application, Adding a Web Reference, Testing a Web Service, Accessing the XML Web Service and To access the XML Web service VB.NET 2005 Tutorials : Web Reference, ASP.NET Web Application and XML Web Service Using Web Reference A Web reference is a generated proxy class that locally represents the exposed functionality of an XML web service. The proxy class defines methods that represent the actual methods exposed by an XML… Read More

Creating Web Service Project In this tutorial you will learn about Creating a Web Service Project. Creating Web Services Creating a Web Service Project Purpose: To create an XML Web service project and thereby separate the functionality of the web service from the web site: 1. On the File menu, point to New, and then click Web Site. 2. In the New Web Site dialog box, select the ASP.NET Web Service icon. 3. Enter the address of the Web server on which you will develop the XML Web service. Use… Read More

Instantiating – Invoking Web Services, Creating Proxy Classes with WSDL In this tutorial you will learn about Discovering Web Services, Instantiating and Invoking Web Services, Creating Proxy Classes with the Web Services Description Language Tool (wsdl.exe) VB.NET 2005 Tutorials: Instantiating – Invoking Web Services, and Creating Proxy Classes with WSDL Using the Web Services Discovery Tool (disco.exe) Now that we have created a web service, we will use the disco.exe tool to discover it. To direct the tool to locate the service the syntax to be used is as under.… Read More

Web Services – SOAP, WSDL, Disco and UDDI In this tutorial you will learn about Web Services – Understanding Web Services, Simple Object Access Protocol (SOAP), The Web Service Discovery Tool (DISCO), Universal Description, Discovery and Integration (UDDI), Web Service Discovery Language (WSDL). Web Services – SOAP, WSDL, Disco and UDDI Understanding Web Services Interconnectedness engendered by the World Wide Web has created a pressure to create applications that are interoperable and distributable over the network. The direction of effort is towards creating applications that connect to each other regardless… Read More

Editing Data With ADO .NET In this tutorial you will learn about Editing Data With ADO .NET – Updating Data, Adding Data, Typed data set, Untyped data set, Deleting Data, Editing with a DataGrid. Updating Data The SqlDataAdapter’s update method is called whenever the changes made to a DataSet has to be applied to the underlying table. The SqlDataAdapter is instantiated using eh SELECT statement and the compiler generates the statements for UPDATE, INSERT and DELETE. The changes made to the DataSet are then applied to the Database. However considerations… Read More

Finding and Sorting Data in DataSets In this tutorial you will learn about Finding and Sorting Data in DataSets – Filtering on Row State and Version, Sorting and Data View Manager. Finding and Sorting Data in DataSets Using the table’s Select method or the RowFilter property of a data view, the user can filter records in a data table to make available only the required records. This is useful when the user wants to work with different subsets of the records in a dataset table. To specify filter criteria, the… Read More

Using XML Data In this tutorial you will learn about Using XML Data – XML Basics, Using XmlDocument Class, Treating XML as Relational Data, The Introduction, The database, Handle Data Errors – Handle Database Errors and Handling Multi-User Errors.Using XML Data XML Basics In this section we shall see some of the features of XML with reference to the .NET Framwork. Some prior knowledge of xml is required for understanding this section. The following assemblies implement the core XML standards.: 1) System.Xml -Basci Xml Input and Output with XmlReader and… Read More

Access and Manipulate Data – Using DataSets In this tutorial you will learn about Using DataSets, Populating a DataSet From a Database, Moving Around in DataSets and Retrieving Data, Using Strongly Typed DataSets, DataSets With Multiple Tables. Populating a DataSet from a Database As already discussed DataSets do not contain any data when they are created. The user must fill the data in to the DataSet separately. We have already seen that there are several methods of filling a DataSet with data. DataSets can be created using the Visual Studio… Read More

In this tutorial you will learn about The ADO .NET Object Model, Data Providers and Their Objects and the Dataset Objects Access and Manipulate Data – The ADO .NET Object Model The ADO .NET Object Model ADO .NET renders very good support for working with disconnected data. ADO .NET 2.0 comes with additional features that enhance the performance of common database tasks. The data source window provides a centralized window for creating and configuring related objects required to access a date source. Smart tags added to the controls provide fast… Read More

In this tutorial you will learn further more about Access and Manipulate SQL Server data – Using Stored Procedures, Creating a Stored Procedure, Running Stored Procedures from .NET, Using Parameters in Stored Procedures, The @@IDENTITY Variable Access and Manipulate SQL Server data – Using Stored Procedures Using Stored Procedures Stored procedures are an important aspect in all database programs. VB.NET applications are no exceptions to this rule. Stored procedures enable users change the business logic without actually tinkering with the application. SQL Server 2005’s (formerly code named Yukon) integration with… Read More

In this tutorial you will learn about Access and Manipulate Data, Working with Disk Files, Browsing for Files, Streams and Backing Stores, Using the FileStream Class, Using the StreamReader and StreamWriter Classes, Using the BinaryReader and BinaryWriter Classes. Access and Manipulate Data – Working with Disk Files Working with Disk Files Temporary storage of data as in the illustrations above is not the optimal solution. Persistent data storage is a file having a collection of bytes and is stored as data streams. All read write operations to these data steams… Read More

In this tutorial you will learn about Consuming and Manipulating Data Viz. Access and Manipulate SQL Server data – Using Ad Hoc Queries; Running Queries, The SELECT Statement, The INSERT Statement, The UPDATE Statement and The DELETE Statement. Access and Manipulate SQL Server data – Using Ad Hoc Queries Consuming and Manipulating Data Modern day enterprises deal with online transaction processing databases that need to store huge volumes of data as well as carryout database operations such as UPDATE, ADD, and DELETE or retrieve data for viewing and decision making.… Read More

In this tutorial you will learn about Using the Data Form Wizard – Building a Single-Table Data Form, Transform and Filter Data, Using Server Explorer, Drag-and-Drop From Server Explorer, What the user Can and Cannot Drag from Server Explorer, Filtering Data, Filtering With DataViews, Filtering At the Server, Transforming Data with Lookups and Master Detail. Using the Data Form Wizard Building a Single-Table Data Form Adding a single table to a form using a wizard makes for ease of application development. The following example demonstrates the building of a form… Read More

In this tutorial you will learn about Complex Data Binding, Binding to a ComboBox or ListBox, Binding to a DataGrid. Complex Data Binding Complex data binding is the ability of a control to bind to more than one data element, typically more than one record in a database, or to more than one of any other type of bindable data elements. Examples of controls that support complex binding are the DataGridView, ListBox, and ErrorProvider controls. Binding to a ComboBox or ListBox In this section let us create a complex binding… Read More

VB.NET 2005 Tutorials: Simple Data Binding In Section 1 of Data Binding you will learn about definition of Data Binding Bindable Entities, The Architecture of Data Binding, Bind Data to the User Interface and Simple Data Binding Data Binding The process of binding a control to a data source is called data binding. Visual Studio 2005 includes several new features to assist in developing applications that access data. The Data Source Configuration Wizard simplifies connecting the application to data in databases, Web services, and user-created objects. The new Data Sources… Read More

Creating and Managing .NET Assemblies Single-file and multi-file assemblies, Combining modules written in different languages, Creating a multi-file assembly, End Namespace, Static and dynamic assemblies, Private and shared assemblies, Sharing an assembly, Satellite and Resource-only assemblies, Compiling Satellite Assemblies, Compiling Satellite Assemblies With Strong Names, Obtaining the Public Key, Delay Signing an Assembly, Re-signing an Assembly, Installing a Satellite Assembly in the Global Assembly Cache, Resources in Applications, Creating and Localizing Resources and Packaging and Deploying Resources Single-file and multi-file assemblies A single-file assembly is the simplest of all the… Read More

VB.NET Creating and Managing Components Part 1 In this tutorial you will learn about Components, Best practices in using Components, Creating Components by extending the UserControl Class, Testing the Control, Creating and implementing Events, Extending a control through Visual Inheritance and Inheriting from a UserControl. A component is a reusable piece of code in binary form. This code can be reused by inheritance. No class is being inherited. It follows that a containment relationship is defined between the application using the component and the component that is being used. This… Read More

Creating and Managing Components Part 2 In Section 2 of Creating and Managing Components You will learn about Hosting a control inside Internet Explorer, HTMLAnchor Control, HTMLButton Control, HTMLGeneric Control, Creating Components by extending the Control class, Creating a custom control and Creating components by extending the Component class. Hosting a control inside Internet Explorer ASP .NET server controls are group of new controls provided by .NET. They are of different kinds. HTML Server controls, Web Server controls and Validation controls are the other types. These controls derive from System.Object… Read More

.NET Exceptions In this tutorial you will learn about Exceptions, Common Exceptions, Handling Exceptions – Try Block, Catch Block, Throw Statement, Finally Block, Salient points about error handling Custom Exceptions – Managing Unhandled Exception Exceptions Abnormal conditions can become obstacles in the execution of very good programs. These conditions may force the program to breakdown, or halt or just go into a limbo. The Network connection may snap or a printer may run out of paper. No programmer can foresee these problems, yet he must give the user an option to… Read More

VB.NET Validation Controls  In this tutorial you will learn about User Input Validation, Required Field Validators, Comparison Validators, Range Validators, Regular Expression Validator, Custom Validators, ErrorProvider, Enabling Controls Based On Input and Other Properties of Validation. User Input Validation While any application can be designed with sound logic and good technology and can deliver high performance with accuracy, some errors could still creep into it. This could be due to wrong inputs by users. While the programmer may have taken care of all the exceptions it could cause a loss of… Read More

  Creating Multiple-Document Interface (MDI) Applications In this tutorial you will learn about Creating Multiple Document Interface (MDI) Applications. Creating Multiple-Document Interface (MDI) Applications In most real time applications we often find that multiple windows open within another window. This kind of need is satisfied by implementing Multiple Document Interface (MDI) Applications. You can create a class and designate it as a MDI window by setting its IsMDIContainer Property as true. Set the value for WindowState as maximized. This can be done by editing the property sheet. You will see… Read More

Creating Menu and Menu Items In this tutorial we will learn about Creating Menu and Menu Items – Main Menu, Context Menu, StatusBar and ToolBar. Main Menu Windows users are familiar with Menu objects. The MainMenu control represents the container for the menu structure of the form. Menus are made up of MenuItem objects that represent the individual parts of a menu. You can add submenus to menus that will pop up when the user clicks an arrow in the menu item, display check marks, create menu separators, assign shortcut… Read More

.NET Common Windows Form Controls part 2 In this tutorial we will learn about Common Windows Forms Controls in Visual Basic .NET 2005. In this part 2 of this article, We will be learning the controls like Control MonthCalendar and DateTimePicker, TreeView and ListView, Timer, TrackBar and ProgressBar, HScrollBar and VScrollBar, MonthCalendar MonthCalendar is a very useful tool that has been added to the .NET Framework. Let us see how this works with an example. In a new project add a textbox and a command box to the form and… Read More

DomainUpDown and NumericUpDown Controls DomaiUpDown The windows Forms System.Windows.DomainUpDown control looks like a combination of a text box and a pair of buttons for moving up or down through a list. This control displays and sets a text string from a list of choices. You can select the string by clicking up and down buttons to navigate through a list. Alternatively you can press the UP and DOWN Arrow keys or just type a string that matches an item in the list. You can use this control to select items… Read More

.NET Common Windows Forms Controls In this tutorial we will learn about Common Windows Forms Controls in Visual Basic .NET 2005. IN this part 1 of this article, We will be learning the controls like Control Hierarchy, Label, LinkLabel, TextBox, RichTextBox, PictureBox, GroupBox, Panel, Button, CheckBox , RadioButton, ListBox, CheckedListBox and ComboBox.Control Hierarchy The base class for all Windows controls is located in the System.Windows.Forms namespace. These controls are built into the .NET framework and form the basis for derived controls. These controls have a distinct hierarchy of their own. For… Read More

Dialog Boxes in Visual Basic .NET Most Windows applications request for user input. Dialog boxes are one means of requesting users for specific kinds of inputs. Therefore, VB.NET allows its designers to create a number of different types of dialog boxes. Standard Dialog boxes are included in classes that fall within the purview of the CommonDialog. FileDialog ColorDialog FontDialog PageSetupDialot PrintDialog Let us now briefly study the features of the CommonDialog boxes OpenFileDialogClass This class provides users with the file selection capability. The properties and methods of this dialog boxes… Read More

Common Controls and Handling Control Events In this tutorial we will be learning how to use common control like Control Hierarchy, Label and LinkLabel, TextBox and RichTextBox, PictureBox, GroupBox and Panel, Button, CheckBox and RadioButton, ListBox, CheckedListBox and ComboBox, DomainUpDown and NumericUpDown, MonthCalendar and DateTimePicker, TreeView and ListView, Timer, TrackBar and ProgressBar, HScrollBar, VScrollBar, TabControl and Handling Control Events. All controls are governed by the Control Class “System.Windows.Forms” Namespace. This class handles the entire basic window handle (HWND) functionality such as the creation and destruction of windows handles. When Control… Read More

Visual Studio Adding Controls In this tutorial let’s discuss about Adding Controls to a Windows Form, Adding Controls using Windows Forms Designer, Adding Controls Dynamically and Setting properties of Controls. Sample source codes used in this tutorial are included. Forms are containers for control objects. All controls have properties, methods and events that can be used to customize their functionality. Controls can be manipulated in the designer mode and code can be added to dynamically add controls at run time. Adding Controls to a Windows Form Controls are basically groups… Read More

Building graphical interface elements by using the System.Drawing namespace In this tutorial we will learn about Graphics Object, The Windows Forms Coordinate System, Drawing Text on a Form, Drawing Shapes and Working with images.     Understanding The Graphics Object Graphics handling in Visual Basic .NET is based on GDI+ (Graphics Device Interface). A graphics device interface allows you to display graphics on a screen or a printer without having to handle the details of a specific display device. All that you need to do is to make calls to… Read More

Introduction to Event Handling One of the most useful capabilities of the OOP Languages is their inbuilt ability to be aware of a large number of events like MouseOver, MouseClick, and so on so that we can write codes to react to any event that we are interested. This is made possible by the rich set of classes that have been built in the .NET Framework The events handling is very simple as we have seen in the previous example where buttonClicked event is handled by the following code: Private… Read More

Setting and Adding Properties to a Windows Form In this tutorial we wil leran about Setting and Adding Properties to a Windows Form, Using the Visual Designer to set Windows Form Properties, Setting Windows Forms Properties programatically and Using Visual Inheritance along with the sample project and screen shots. Using the Visual Designer to set Windows Form Properties The properties of the Widows properties can be edited in the properties window visually. Both the inherited properties and also those added in the current class can be edited using the property… Read More

Using Application Class Visual Basic 2005 introduces a speedy way to access many important classes relating to the Computer on which the application is running, the user running it, the application itself, its forms and any associated web services. The best part of it all is that you can access it all using the new My object. The new My object has added features that help the programmer to gain access to some functionality that was really hard to achieve. My.Application Object contains information about running application, such as the… Read More

VB.NET 2005 Free Training Exploring the Forms Designer generated code As you create a new project in the Visual Basic, the IDE generally automatically adds lots of lines of code on its own. Visual Basic 2005 comes with an option to skip over this behavior of the Visual Basic IDE. The default option comes with this behavior enabled. These codes are introduced with an aim that the user can continue to use the form without bothering about write codes to instantiate the form with a function new() and also the… Read More

Using The System.Windows.Forms.Form class System.Windows .Forms.Form class is the foundation class for all forms to be created. All the forms that are created in VB .NET are also inheriting from this base class. This class provides for all the facilities needed for the form. Additional functionality can be added by separate codes. In the .NET Framework, a number of new features have been added to the Form Class and the Controls. We shall see some of the new features quickly. For most detailed information is available in the Microsoft website.… Read More

Visual Studio.NET Namespaces The .NET Framework class library has thousands of classes which are needed for developing and deploying solutions. In order to organize all those classes for ease of use .NET Framework uses namespaces. This Gives the Classes their own space and prevents conflicts between the various names in these classes. For instance if two classes contain a method Paint(), then to avoid conflicts in names we can place these classes in two different namespaces. Thus namespaces allow classes to be grouped in a consistent, hierarchical manner. The writing… Read More

Introduction and Implementing Inheritance The usefulness of inheritance is depnding on the choice of its usage. You can use inheritance if the derived class is a kind of base class but not has a relationship with the base class. Such a situation empowers you to reuse the code from the base class. It is also more useful if the hierarchy is very shallow. The developer can effect global changed to the derived class by changing the base class. Understanding Inheritance Inheritance is an important feature of any OOP Language. Let… Read More

Implementing Class Library Object in VB.NET 2005 Class: Classical Object Oriented Concepts explain a class as a cookie cutter. A class allows you to create objects of the class. As a programmer you define a class with data fields, properties, methods and events. Then you can create objects based on that class that have state (fields, properties) and behavior (methods, events). A class can be considered as a specification of how the object of the class should look like and behave. An object of the class is nothing other than… Read More

Introducing VB.NET 2005 Windows Forms We will be learning in the next series of articles as part of VB.NET 2005 Free Training : Introducing Windows Forms in the following topics with code samples and screen shots. Introducing Windows Forms Designing Windows Application is simpler and less time consuming with Visual Basic 2005. A number of new facilities and enhancements have been made to assist the developer complete the project in time and with lesser number of errors. Windows Form is the cynosure of the Windows Application. Visual studio 2005 packs… Read More

VB.NET 2005 Free Training: Differences between VB.NET 1.0 and VB.NET 2.0: VB.NET 2005 comes with a number of enhancements. The IntelliSense Code snippets, the Windows Forms designer updates, IntelliSense filtering, debugger data tips, exception Assistant etc make the software a pleasure to work with. The language has been spruced up with generics, unsigned types, Operator overloading etc. The My Namespace is the most significant enhancement that provides a single reference to commonly used functionalities within the .NET framework. It includes classes like Application, Computer, Forms, Resources, Settings and Users. This… Read More

VB.NET 2005 Free Training : The .NET Framework Architecture Part 2. In this tutorial of The .NET Framework Architecture Part 2 we will learn about Just-In-Time (JIT) compilation, Assemblies, native assemblies, Global Assembly Cache (GAC) and Comparison of VB.NET, C#, and J#. Just-In-Time (JIT) compilation As stated above, the Just in time compiler is a facility that is invoked by the CLR to convert the IL into machine code. The .NET framework assemblies (*.dll or *.exe) files cannot be executed by the target processor unless it is converted into native… Read More

This is the first tutorial as part of the Visual Basic .NET 2005 Training. In this tutorials we will be learning about the basics of The .NET Framework Architecture, The .NET vision, Common Language Runtime (CLR), .NET Framework Class Library and Microsoft Intermediate Language (MSIL). It’s very important to learn the basics before we actually start with the Programming. The .NET Vision The .NET framework is a software technology that is directed towards connecting information, people, systems and devices seamlessly. The high level of software integration that has been attempted… Read More

VB.NET 2005 Free Training We are exited to let you know that we will be starting Visual Basic .NET 2005 Training. Please find the topics below which we will be covering during the course. This training is based on the latest Visual Basic .NET 2005 version. Visual Basic .NET 2005 Training 1. .NET Framework architecture The .NET Framework Architecture Part 1 The .NET Framework Architecture Part 2 Application Class and Message Class Implementing Class Library Object Visual Studio.NET Namespaces .NET Assemblies Differences between VB.NET 1.0 and VB.NET 2.0 2. Introducing… Read More