Visual basic

Visual basic

1. FORM:

   • The form is the first object or control that is displayed in Visual Basic and constitutes the screen or window on which other objects or controls are placed such as tags, text controls, buttons, etc. and of course the necessary code of our programs, so Both will constitute the user Interface.

2. TOOL BOX:

   • Displays the standard Visual Basic controls, in addition to the ActiveX controls and Insertable objects that you have added to your project. The toolbox is an important element in the IDE, because that is where the controls that we will use in our projects are. By default, it is located on the left side. If you do not see it, activate it from the menu View ----- à Other Windows ------- à Table Tools . Or by Control + Alt + X as already explained above. Do not confuse Toolbox with the toolbar in the View menu because they are different things. The toolbox contains more than 130 controls to use in our programming tasks. We can apply the autoid feature (hide automatically) and only deploy it when we need it, by using the pushpin or we can close it completely using the Cancel button . We can also click on the arrow (arrow) and choose between hiding the toolbox or leaving it floating . This last feature allows you to place the toolbox anywhere in the IDE . Floating means that we
     • https://www.frro.utn.edu.ar/repositorio/catedras/electrica/2_anio/fundamentos_informatica/apuntes/visual_basic/Controles%20comunes.pdf

3. CONTROLS

   • Common Visual Basic controls are within the Visual Basic executable file. Intrinsic controls are always included in the toolbox, not as ActiveX controls and Insertable objects, which can be removed or added to the toolbox.

4. OBJECT PROPERTIES

   • An important goal of many of the object-oriented programming languages ​​is to allow you to encapsulate internal details in a class. Visual Basic .NET or Visual Basic 2005 allows you to define properties to provide controlled access to internal details in a class. This article describes how you can define and use properties in a Visual Basic .NET or Visual Basic 2005 application. A property can be read-only, write-only, or read / write. A Get accessor provides read access and a Set access, write access. You can add code to these accessors to provide the appropriate functionality to obtain or set the property. In this article, create a class calledEmployee . Within this class, define a read / write property for the employee's name, a reading property for the employee's salary, and a property to calculate how long the employee has been working for the company. Next, create an Employee object in your application and use its properties
     • fuente: https://support.microsoft.com/es-ec/help/308230/how-to-define-and-use-properties-in-visual-basic-net-or-in-visual-basi

5. CONTROL STRUCTURES

   • They Are used to control the flow of the program in a routine or function.  These structures allow to control, by a condition, the execution or not of a line or set of lines of code.
     • https://es.slideshare.net/carolina00/estructuras-de-control-en-isual-basic

6. TYPES OF DATA

   • The data type of a programming element refers to the type of data it can contain and how it stores the data. The data types apply to all the values that can be stored in the computer's memory or participate in evaluating an expression. Each variable, literal, constant, enumeration, property, procedural parameter, procedural argument, and return value of a procedure has a data type.