Shared keyword
A shared method is not accessed via an object
instance like a regular method, but rather is accessed directly from the class.
The shared keyword in VB.NET is the equivalent of the static keyword in C#. In
VB.NET, the shared keyword can only be applied to methods within a class,
however, in C#, the static keyword can be applied to both methods within a
normal class, and also at the class level to make the entire class static.
Shared Variables
when we share a value across all instances of a class when every object of a
given type should share the same variable. This is accomplished through the use
of shared variables.
A shared variable is declared using the Shared keyword, much like a shared
method:
Public Class hello
Private Shared roh As Integer
End Class
We have no need an instance of the class to call the method.
Such as:
Public Class Rohatash
Public Shared Sub MyMethod()
// Do something in the method
End Sub
End Class
We can call shared method without create instance of class.
MyClass.MyMethod()
For Example
Module Module1
Public NotInheritable Class Myclass
Private Sub New()
End Sub
Public Shared Function Add(ByVal num1 As Integer,ByVal num2 As Integer) As Integer
Return num1 + num2
End Function
Public Shared Function [Sub](ByVal num1 As Integer,ByVal num2 As Integer) As Integer
Return num1 - num2
End Function
Public Shared Function Mul(ByVal num1 As Integer,ByVal num2 As Integer) As Integer
Return num1 * num2
End Function
End Class
Sub Main()
Console.WriteLine("Sum= " & MyMath.Add(5, 2).ToString())
Console.WriteLine("Substraction = " & MyMath.[Sub](9, 2).ToString())
Dim mul As Integer = MyMath.Mul(7, 2)
Console.WriteLine("Multiply = " + mul)
End Sub
End Module