basic with a back end tool having fields roll number, name, address, marks, date of birth. Give the privileges to add,save,delete,modify and search


Draw flowchart, write an algorithm and program in visual basic with a back end tool having fields roll number, name, address, marks, date of birth. Give the privileges to add, save, delete, modify and search the records. Give all the navigation facilities to the user. Note: Use data control

Ans

Private Sub cmdAdd_Click()
add
Student. Recordset. AddNew
End Sub
Private Sub cmdFirst_Click()
Student. Recordset .MoveFirst
End Sub
Private Sub cmdLast_Click()
Student. Recordset .MoveLast
End Sub
Private Sub cmdNext_Click()
Student. Recordset.MoveNext
End Sub
Private Sub cmdPrevious_Click()
Student. Recordset.MovePrevious
End Sub
Private Sub cmdSave_Click()
save
Student. Recordset. Update
End Sub
Private Sub cmdModify_Click()
modify
Student. Recordset. Edit
End Sub
Private Sub cmdDelete_Click()
'delete
Student. Recordset. Delete
Student. Recordset. MoveFirst
End Sub

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Visual Basic-6 has emerged as one of the standard Windows Programming Language and it has become a must for all Software people for developing Applications in Visual Environment. So it is, one must learn Visual Basic-6.

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What is Visual Basic-6?

Visual Basic-6 has its origin in Basic which was developed round about the year 1960, when high level languages were just being introduced to the computer community. Microsoft has made it extremely powerful by gearing all its good features to the Windows environment. Starting with the version 3 and then with 4, and then with 6, Visual Basic is now at version 6. Basic is a Procedure Oriented Language intended to implement single tasks in text based environment whereas Visual Basic is an Event Driven Language intended to implement Projects or Applications containing multiple tasks in Windows Environment.

What can Visual Basic do for you?

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Structure of VB-6 Projects:

We said earlier that VB-6 implements projects or applications. A project is developed using one or more Forms. A Form is simply a window containing one or more Controls. Controls in VB consist of labels, text boxes, list boxes, combo boxes, scroll bars etc. which are the constituents of windows environment. It is only the controls that give VB, its immense power and so there is a lot of interest in creating more and more powerful controls. ActiveX controls mark a significant development in controls technology. In fact all controls in VB-6 are ActiveX controls, which have the extension .ocx. These controls have properties whose values can be initialized at design time and also varied during run time. The properties are something like variables. The controls are activated by codes written in a high level language. By associating our problem variables with the properties of the controls, our problem variables can be manipulated to give the problem solution. In summary we can say that a VB project is made of forms, controls and their properties and codes.

Integrated Development Environment:

The working environment in VB is often referred to as the Integrated Development Environment or IDE, because it integrates many different functions such as design, editing, compiling and debugging within a common environment. Since all our projects are developed only in the IDE, let us now have a brief look at its features. You will be able to understand their uses at the time of building projects. The VB IDE looks as shown in the figure.