Simple Validation not working (sample attached)

In a visually inherited form, I'm doing the following:

VB Code:

Overrides Sub Textbox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
        strTempVar = ""
 
        strTempVar = Me.TextBox1.Text
 
        If IsValid(strTempVar) Then
            Debug.Write("valid")
            Me.TextBox2.Text = strTempVar
        End If
 
    End Sub
 
 
Public Function IsValid(ByVal cstrTempVar As String) As Boolean
        If Len(cstrTempVar) < 10 Then
            IsValid = True
        Else
            IsValid = False
 
        End If
    End Function

Where textbox2 belongs to the new form only. It keeps breaking at the line:

Me.Textbox2.Text = strTempVar

When I move my mouse over Me.Textbox, the tooltip says Me.TextBox = Nothing

Anyways, it's a simple application, so I've attached it. Please tell me what I'm missing. :afrog:

My theory (could be wrong, I usually am).

In the Form2 Code:
The form1.InitializeComponent() sets textbox1.text before textbox2 is created in form2.InitializeComponent ()

Thus nothing.

The form2 InitializeComponent () sub is never called. The error is occurring before it.

I reckon that what you are trying to accomplish is a bit strange, you'd be better served overloading the form2 constructor and letting it take a string argument and querying it after InitializeComponent() has finished.