VISUAL BASIC 6.0 PDF NOTES
Learn Visual Basic Notice. These notes were developed for the course, “ Learn. Visual Basic ” They are not intended to be a complete reference to Visual. Visual Basic Notes short - Free download as Word Doc .doc), PDF File .pdf), Text File .txt) or read online for free. These notes are developed for visual. no better. ☆ Visual Basic provides a convenient method for building user interfaces. ☆ Visual Basic can interface with code written in C, for efficiency. Page 6.
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Before we begin learning Visual Basic 6 programming, let us understand some basic concepts of programming. Programming means designing a set of. An Introduction to Programming Using Visual Basic , Fourth Edition, Figures through show the flowchart, pseudocode, and hierarchy chart for the. Free Computer, Mathematics, Technical Books and Lecture Notes, etc. Title Introduction: Visual BASIC ; Author(s) Gary Haggard, Wade Hutchison, Lou Tylee; Publisher: Bookboon (); ebook PDF, pages, MB; Language.
Visible: It determines whether the command button displayed on the screen or not. Enabled: Determines whether the button is responsive or not. List any four standard controls in VB.
Write any four properties used to control the appearance of a form. State the different data types in VB. Define FORM.
A form is a container in visual basic IDE which is used to place various controls based on the application requirements. Also it is a blank window in visual basic contains the grid of dots. What is a variable?
A variable is a name given to a memory location where a data value will be stored. The value of a variable may be changed at any time during program execution. Text from page-4 8.
Give the purpose of a command button The command button control is used to begin, interrupt, or end a process. When clicked, it invokes a command that has been written into its Click event procedure. Frame Serves as a visual and functional container for controls CommandButton Used to carry out the specified action when the user chooses it. OptionButton OptionButton control which is a part of an option group allows the user to select only one option even it displays mulitiple choices.
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ListBox Displays a list of items from which a user can select one. This allows the user to select an ietm from the dropdown ListBox, or to type in a selection in the TextBox.
HScrollBar and VScrollBar These controls allow the user to select a value within the specified range of values Timer Executes the timer events at specified intervals of time DriveListBox Displays the valid disk drives and allows the user to select one of them.
DirListBox Allows the user to select the directories and paths, which are displayed.
FileListBox Displays a set of files from which a user can select the desired one. Shape Used to add shape rectangle, square or circle to a Form Line Used to draw straight line to the Form Image used to display images such as icons, bitmaps and metafiles.
But less capability than the PictureBox Data Enables the use to connect to an existing database and display information from it. OLE Used to link or embed an object, display and manipulate data from other windows based applications.
Label Displays a text that the user cannot modify or interact with. Project Explorer Docked on the right side of the screen, just under the tollbar, is the Project Explorer window.
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The Project Explorer as shown in in figure servres as a quick reference to the various elements of a project namely form, classes and modules. All of the object that make up the application are packed in a project. A simple project will typically contain one form, which is a window that is designed as part of a program's interface.
It is possible to develop any number of forms for use in a program, although a program may consist of a single form. In addition to forms, the Project Explorer window also lists code modules and classes.Lists the current value of an expression while the application is in the break-mode.
What are Databases? This is the functional equivalent of Exit sub or Exit Function. Line control and shape control are used for drawing geometrics shapes such as lines, circles, squares and so on.
The following code entered in the Form Load procedure illustrates the structure.
Retrieving the Contents of an Array
Setting Run time and design time properties Many properties can be set at either design time or runtime. Ajeet Kumar Singh.
Using Access and Shortcut keys Access keys allow the user to open a menu by pressing the Alt key with a letter key. To add new record, use add button and insert new values, after it click on update button. To set reference to DAO type library:
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