VB.NET tutorial: Loops-While loop

VB.NET Loops

While loop

The while loop continuously executes statements as the condition is true. You must provide end point for the loop, otherwise the statements will executed infinitely.

While condition
statements

End while

Example:
Module Module1

    Sub Main()

        Dim i As Integer
        i = 1
        'print numbers from 1 to 5 on the screen
        While i <= 10
            Console.WriteLine(i)
            i = i + 1
            If i > 5 Then
                Exit While ‘exit loop when i is greater than 5
            End If
        End While
        Console.ReadLine()
    End Sub

End Module

Note: Exit statement is used to exit a loop

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Posted comments

Phan Neth, CICI, year 3:

Now it is ok teacher. I can connect to database and select data from it. Than you so much teacher !!!!!

04-30-2013

Dara:

Copy and paste the link below to the address box to learn how to connect C and Mysql server:
http://www.worldbestlearningcenter.com/index_files/cpp-tutorial-connect_mysql_database.htm

04-27-2013

Phan Neth, CICI, year 3:

Hello teacher i want to connect C programming language to MySql server but it have problem. When i compile it always error with library " my_global.h
and mysql.h", so how should i do?

04-27-2013

Phan Neth, Year 3 at CICI,:

I have some problem about connection to mysql server. So I hope teacher can help me. Thank !!!!

04-26-2013

Federico:

Output appears the same also this way:

static void Main(string[] args)
{
int[,] myArray = new int[5, 5];
int row, i;
int n = 1;

for (row = 0; row < 5; row++)
{
for (i = 0; i < 5; i++)
{
myArray[row, i] = n;
if (row == 1 && i == 2) Console.Write(" \t");
else Console.Write("{0} \t", n);

if (n!=26) n++;
if((i+1)%5==0) Console.WriteLine("\n");
}
}
Console.ReadLine();
}

04-13-2013

Dara:

Let pointer p point to the index 1 elem (value=2) of the array.
int *p= a+1;
Let pointer q point to the index 6 elem (value=5) of the array.
int *q= a+6;
-Expression q-p is the subtraction of address of the index 6 element and the address of index 1 elem of the array. So, the result is 5.
-Expression *p+*q is the sum of the value of index 1 elem (2) and the value of index 6 elem (5). So, the result is 7.
In conclusion, the output is 57.

03-28-2013

Anushka :

Find the output of following code
main()
{
int a[] = {1,2,9,8,6,3,5,7,8,9};
int *p= a+1; int *q= a+6;
cout<< q-p <<*p+*q; }

03-28-2013

Dara:

Option Explicit
Dim Cn as New ADODB.Connection
Private Sub_Form_Load()
Cn.Open "Provider=SQLOLEDB; Data Source=ServerName; Initial Catalog=DatabaseName;UserID=UserName; Password=Passw"
End Sub
You will need to replace ServerName with the name of your server (installed SQL Server), DatabaseName withe the name of your data file that you want to connect to, UserName with the name of the user to login to SQL Server, and Passw with the password used to login to SQL Server.

03-13-2013

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