RESOLVED

im a begginer, looking for project help

uusing vb.net


i need to make a traffic light, where RED turns to green to yellows, then back to red...while haveing the other 2 buttons black....i got red to green working but not green to yellow

help!!!

Dear Airtas, I corrected your code. You have to remember that you are testing the color of lbllamp1 and it becomes Black after the first time you click your button. Then I put very similar code, under yours corrected. It use a static variable. You can choose to use what you prefer.
Good job:)

VB Code:

Dim thiscolor As String
        thiscolor = Lbllamp1.BackColor.Name
        Select Case thiscolor
            Case "Red"
                Lbllamp1.BackColor = System.Drawing.Color.Black
                Lbllamp2.BackColor = System.Drawing.Color.Green
                'after executed the above code lines, LblLamp1 will be BLACK !!! So I have to intercept also this case
            Case "Black"
                If Lbllamp2.BackColor.Name = "Green" Then
                    Lbllamp2.BackColor = System.Drawing.Color.Black
                    Lbllamp3.BackColor = System.Drawing.Color.Yellow
                Else
 
                    Lbllamp3.BackColor = System.Drawing.Color.Black
                    Lbllamp1.BackColor = System.Drawing.Color.Red
                End If
        End Select
 
        'Static Luce As Byte = 0
        'Select Case Luce
        '    Case Is = 0
        '        Lbllamp1.BackColor = System.Drawing.Color.Black
        '        Lbllamp2.BackColor = System.Drawing.Color.Green
        '    Case Is = 1
        '        Lbllamp2.BackColor = System.Drawing.Color.Black
        '        Lbllamp3.BackColor = System.Drawing.Color.Yellow
        '    Case Is = 2
        '        Lbllamp3.BackColor = System.Drawing.Color.Black
        '        Lbllamp1.BackColor = System.Drawing.Color.Red
        'End Select
        'If Luce < 2 Then
        '    Luce += 1
        'Else
        '    Luce = 0
        'End If

thats a lil 2 complex.... anyone else can help?

this?

VB Code:

Select Case Label1.BackColor.Name
         Case "Red"
            Label1.BackColor = Color.Black
            Label2.BackColor = Color.Black
            Label3.BackColor = Color.Green
         Case "Black"
            If Label3.BackColor.Name = "Green" Then
               Label3.BackColor = Color.Black
               Label2.BackColor = Color.Yellow
            Else
               Label2.BackColor = Color.Black
               Label1.BackColor = Color.Red
            End If
      End Select

I'm afraid dear Airtas, perhaps I can try to explain something if you ask me (if my english is enough!), anyway the code is only a little different from your original posted!:sick:

Hi airtas,

Looks to me like ayan solved your problem. If so, you can mark your thread "Resolved" by editing your first post.

Anyway, airtas, as I said, my first version is the most similar I found to your original code, just to give you an easy indication. The second, I think is more useful. For a so simple problem it could not be so clear, but you can choose to make a lot of different combination of colors that not depend on the previous state of light. If something is not clear....I'm here.;) :wave: