There is frequently a need to pass a value between two Windows Forms. 

The code below provides an example of how this can be accomplished in Visual Basic .NET creating the property below in the form you wish to pass a value to.

Public Property passedVariable() As String
        Return nameform
    End Get
    Set(ByVal value As String)
        nameform = value
    End Set
End Property
Private nameform As String

Once an instance of the form is created we can then assign the property the value we wish to pass into the form as show below.

    Dim f1 As New Form1
f1.passedVariable = "test"

The result will be that the textbox1 in form1 will show test.