What is data aware control as used in VB?
A data-aware control is one that can provide access to a specific field in a database through a data control. A data-aware control can be bound to a data control through its data source and data field properties.
What are the 3 types of VB modules?
Code in Visual Basic is stored in the form of modules. The three kind of modules are Form Modules, Standard Modules and Class Modules.
What is class vb6?
Each object in Visual Basic is defined by a class. A class describes the variables, properties, procedures, and events of an object. Objects are instances of classes; you can create as many objects you need once you have defined a class. The class is used to create objects. The objects are the cookies.
What do you learn in Visual Basic?
In a Visual Basic course, students might learn about the user interface, language syntax, program structure, and implementation of the programming language. The objective of such a course is to learn to create and use applications.
What is data aware control in asp net?
The DataList control renders data as table and enables you to display data records in different layouts, such as ordering them in columns or rows. You can configure the DataList control to enable users to edit or delete a record in the table.
What are modules in VB?
Modules are containers to define custom functions, procedures or variables to group code in Visual Basic. Members (variables) declared with Dim keyword are only visible within this module scope and not visible for another modules, while members declared with Public keyword are visible for this and other modules.
What are the data types in VB?
In this article
| Visual Basic type | Common language runtime type structure | Nominal storage allocation |
|---|---|---|
| Double (double-precision floating-point) | Double | 8 bytes |
| Integer | Int32 | 4 bytes |
| Long (long integer) | Int64 | 8 bytes |
| Object | Object (class) | 4 bytes on 32-bit platform 8 bytes on 64-bit platform |
Are constructor is a special type of?
What is constructor? A constructor is a special type of member function of a class which initializes objects of a class. In C++, Constructor is automatically called when object(instance of class) create.
What are the main elements of IDE screen?
The components of the IDE screen of visual basic
- Toolbar.
- Menu bar.
- Project explorer.
- Properties window.
- Form layout window.
- Object designer.
- Form designer.
- Toolbox.
Which language is used in Visual Basic?
Visual Basic for Applications (VBA) is a syntactically identical extension of Visual Basic that has a rather specific usage. This article highlights some of the differences between VBA and its parent language, Visual Basic, in a Windows environment.
Which method is used to populate a data set?
The Fill method of the DataAdapter is used to populate a DataSet with the results of the SelectCommand of the DataAdapter . Fill takes as its arguments a DataSet to be populated, and a DataTable object, or the name of the DataTable to be filled with the rows returned from the SelectCommand .
How are classes and objects interrelated in Visual Basic?
In visual basic, Classes and Objects are interrelated. The class in visual basic is nothing but a collection of various data members (fields, properties, etc.) and member functions. The object in visual basic is an instance of a class to access the defined properties and methods.
Which is the user class in Visual Basic?
If you observe the above visual basic class example, we defined the “ Users ” class with a various data members and member functions based on our requirements. Following is the detailed description of various data members which we used in the above visual basic class example.
How do you create a class in Visual Basic?
In visual basic, classes can be created by using Class keyword. Following is the declaration of class in a visual basic programming language. ‘ Properties, Methods, Events, etc. If you observe the above syntax, we defined the class “ users ” using Class keyword with public access modifier.
Can a whole application be an object in Visual Basic?
An entire application can also be an object. When you create an application in Visual Basic, you constantly work with objects. You can use objects provided by Visual Basic, such as controls, forms, and data access objects. You can also use objects from other applications within your Visual Basic application.