Variable not declared error

[Pc_Madness]

I get an error about my variable not being declared, yet when it runs I get no build error, and my button's backcolor is changed.

Its easier to see an example.


SAVE ME!! I'm going to have like 10 of these errors and the lecturers will have my ass on a stick.

[<ABX]

#Region " Windows Form Designer generated code "
 
    Public Sub New()
        MyBase.New()
        MyVar = Color.Red
 
        'This call is required by the Windows Form Designer.
        InitializeComponent()
 
        'Add any initialization after the InitializeComponent() call
 
    End Sub
 
    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub
 
    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer
 
    [B]'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.[/B]
    Friend WithEvents Button1 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Button1 = New System.Windows.Forms.Button
        Me.SuspendLayout()
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(152, 144)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(64, 24)
        Me.Button1.TabIndex = 0
        Me.Button1.Text = "asdas"
        Me.Button1.BackColor = MyVar
 
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Controls.Add(Me.Button1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)
 
    End Sub
 
#End Region

Why do you need to do it this way? just Do what you need to do in the forms Constructor.

My guess is the the error is a flaw, or something that wasnt expected my the forms designer because it says explicitly not to change any of the code/

[Edneeis]

It's probably because you have your code BEFORE the InitializeComponent call. See the comment below that call:
'Add any initialization after the InitializeComponent() call

See if this gets rid of the error:

Public Sub New()
        MyBase.New()
 
        'This call is required by the Windows Form Designer.
        InitializeComponent()
 
        'Add any initialization after the InitializeComponent() call
        MyVar = Color.Red
 
    End Sub

[Pc_Madness]

Originally posted by Edneeis
It's probably because you have your code BEFORE the InitializeComponent call. See the comment below that call:
'Add any initialization after the InitializeComponent() call

See if this gets rid of the error:

Public Sub New()
        MyBase.New()
 
        'This call is required by the Windows Form Designer.
        InitializeComponent()
 
        'Add any initialization after the InitializeComponent() call
        MyVar = Color.Red
 
    End Sub

This seems to have solved the problem.


And I have no idea why we have to do it like this... it really could be done in form load, but apparently the head of the course is abit of a dick.

[Edneeis]

It makes sense that it is in the constructor which gets called when the form gets created.

[taxes]

"And I have no idea why we have to do it like this... it really could be done in form load, but apparently the head of the course is abit of a dick. "


or perhaps your instructor thinks this is the best way to get you to learn what you have learned