How to work on one form

Question

Hey everybody
First of all, I started my application by using 3 forms :
I'd like to use one form to switch between them
i got this solution to show form2 and hide Form 1 but this isn't smell good :D
please help to solve this, 
I hope u understood me ! 
thanks ^^

Answer 1

what i want is when i run the program i got the form1 ( all controls) and when i click on next it should show all controls of the form2 in the same size of form1, 
ps : like when we install a program we dont notice that the first form is gone and show the secontd, we notice that controls change in the same form.
So you still want to use multiple forms in the application, but you need to ensure that each form opens with the same size and position as the previous form, like a wizard.
In the form that you are opening (Form2 in your example), create a constructor that accepts the size and location information.   Use this size and location information in the form load event.
Private _mylocation As Point
Private _mysize As Size
Public Sub New(ByVal MyLocation As Point, ByVal MySize As Size)
InitializeComponent()
_mylocation = MyLocation
_mysize = MySize
End Sub
Private Sub Form_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.Location = _mylocation
Me.Size = _mysize
End Sub
Then, in the form that does the opening (Form1 in your example) create the new form with the information about the size and location.
Private Sub Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnNext.Click
Dim NextForm As New Form2(Me.Location, Me.Size)
NextForm.Show()
Me.Hide()
End Sub
If you allow Form2 to be moved and resized and if you have an option to close form2 (or a Back button) then you have to feed that changed size and location  information back to Form1 when Form2 closes:
Private Sub Form2_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
Form1.Location = Me.Location
Form1.Size = Me.Size
Form1.Show()
End Sub