How to set variables

This is how you set the following variables: String, Integer, Decimal

 Public Class Form1  
   Private Sub btnGo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGo.Click  
     Dim FirstName As String  
     Dim Age As Integer  
     Dim GPA As Decimal  
     Dim Result As DialogResult  
     FirstName = "Dalonte"  
     Age = "22"  
     GPA = "3.6"  
     Result = MessageBox.Show(FirstName & Age & GPA)  
   End Sub  
 End Class  

The Integer data type provides optimal performance on a 32-bit processor. The other integral types are slower to load and store from and to memory.

The Decimal data type provides the greatest number of significant digits for a number. It supports up to 29 significant digits and can represent values in excess of 7.9228 x 10^28. It is particularly suitable for calculations, such as financial, that require a large number of digits but cannot tolerate rounding errors.

The default value of Decimal is 0.

Use the String data type to hold multiple characters without the array management overhead of Char(), an array of Char elements.

The default value of String is Nothing (a null reference). Note that this is not the same as the empty string (value "").

The default value of Integer is 0.

This is how you set a Boolean variable:

 Dim runningVB As Boolean  
 ' Check to see if program is running on Visual Basic engine.  
 If scriptEngine = "VB" Then  
   runningVB = True  
 End If  

Use the Boolean data type to contain two-state values such as true/false, yes/no, or on/off.

The default value of Boolean is False.

When Visual Basic converts numeric data type values to Boolean, 0 becomes False and all other values become True. When Visual Basic converts Boolean values to numeric types, False becomes 0 and True becomes -1.


This is how to convert a number variable into a string

 Dim int As Integer = 789  
 Dim str As String = int.ToString()  
 str now holds 789 as a string.  

you start by declaring a int, then after you do that you have to declare a string = int.ToString()
so that what ever value you entered for your int will also be = to your string variable.

This is how you convert a int into a decimal

 Dim d=132.31223 as Double  

This is easy all you have to do is that when you declare your int follow it by as Double

This is how you join two strings

 Dim FirstName As String  
 Dim LastName As String  
 Dim FullName As String  
 FirstName = "Bill"  
 LastName = "Gates"  
 FullName = FirstName & LastName  
 Textbox1.Text = FullName  

For this one all you have to is declare to string and give them both a value. This declare another variable witch will be use to join them. Once you declare another string to add the other two you have to = is to String1 & String2