Access Tutorial 12 : An Introduction to Visual BasicBasic, VisualBasic, Access
Connecting to a Database by Using LINQ to SQL Show 8 more Language-Integrated Query (LINQ) adds query capabilities to Visual Basic and provides simple and powerful capabilities when you work with all kinds of data. Rather than sending a query to a database to be processed, or working with...
Visual Basic supports both structured and unstructured exception (error) handling. By placing exception handling code in your application, you can handle most of the errors users may encounter and enable the application to continue running. You can use structured and unstructured error handling to ...
When you start creating a large number of classes, you may want to see a list of all of the properties and methods that are available in those classes. You can use the Class View window, as shown in Figure 8, to get a good overview of these items. To bring up this window, on the...
created a new C# console application project named ChiSquare. After the template code loaded into the editor, in the Solution Explorer window I right-clicked on file Program.cs and renamed it to ChiSquareProgram.cs and allowed Visual Studio to automatically rename class Progr...
Now add a new Class/Interface to the solution. Open Solution Explorer if you don't already see it. Right-click on MSDNCOMServer and select Add | Class. Select ATL and ATL Simple Object and then click Add. Enter the short name of the class as MyCOMServer, then use the defaults ...
There are types to handle different types of data; you can use these as you would the traditional data types in Visual Basic. For more information, see Chapter 3. VBScript does not support early binding. Because variables are untyped and code is not compiled, all external objects instantiated...
The most important class for scripting TCP/IP tasks. Contains most of the settings discussed in this paper. Win32_NetworkAdapter Read-only properties Has a one-to one relationship with instances of Win32_NetworkAdapterConfiguration Win32_NetworkAdapterSetting ...
This chapter describes how to programmatically access Microsoft Jet by using the DAO C++ classes, also known as dbDAO. The dbDAO classes expose the same Data Access Objects and functionality as Visual Basic, and use similar syntax. By handling such tasks as managing object-instance lifetime, th...
In the solution explorer, add a new project to your solution by bringing up the context menu of the solution’s main node, and clickingAdd new project. When Visual Studio shows theAdd New ProjectDialog, from theVisual Basicsection pickClass Library (.NET Standard). Name the new ProjectRoman...