Make a countdown & when button is pressed label add score 1, 2 and up

Simen S M

14y3.8k

Hi guys!
I'm pretty new with this WPF, and now I'm trying to make a countdowner. The option is here that you can type min and sec into to several text boxes and they show up as label (? or what should I use for countdown), and when someone press Start it counts down from the minutes and seconds that was typed in. You guys can see a picture of how far I have come:

PICTURE

For now I have those zeros as label, but I want them to count down when time (added time under Game time) is placed and when button Start is pressed.

And I also want when someone press "point team 1" the label will show number 1, 2 and up.

I want mine to look like this flash based program:

PICTURE

I can't get that style on the number either.
So can you guys help me out here?
I have added System.Timer and System.Windows.Threading under "imported namespaces" but I can't find timer or dispatchertimer in the toolbox!
I have also tried something another guy showed me:

<TextBlock x:Name="clockText" TextWrapping="Wrap" Text="0:00" VerticalAlignment="Top" Margin="8,8,0,0" FontSize="32" HorizontalAlignment="Left" Width="340"/> <Button x:Name="startBtn" Content="Start" HorizontalAlignment="Left" VerticalAlignment="Top" Width="100" Margin="8,54.563,0,0" Click="startClock"/>

private void startClock(object sender, System.Windows.RoutedEventArgs e) { TimeSpan t1 = new TimeSpan(0, 0, 0, 10); TimeSpan t2 = new TimeSpan(0, 0, 0, 1); int counter = 0; DT.Tick += delegate { counter++; t1 = t1 - t2; string a = t1.ToString(); string b = a.Substring(3); this.clockText.Text = b; if (b == "00:00") { DT.Stop(); } }; DT.Interval = new TimeSpan(0, 0, 0, 1); DT.Start(); }

But when I copied that into the code (.vb) I got alot of blue lines under there and 20 errors. See picture:

PICTURE

Hope you guys can help me out here.. I really appreciate it! :)

9 Replies

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Sam Hobbs14y ago

Accepted answer

You need to learn more before you can do stuff like that. As it is now, you are going to need a lot of help from others and you might not find someone willing to spend their own time to do the programming for you. The following does show a countdown in the window but I do not have much time to explain it. I hope this will give you something to help you find what to learn.

 Class  MainWindow

     Dim  DT As  System.Windows.Threading.DispatcherTimer  = New  System.Windows.Threading.DispatcherTimer ()

     Dim  tsi As  TimeSpan  = New  TimeSpan (0, 0, 0, 1)

     Dim  counter As  Integer

     Private  Sub  startClock(sender As  System.Object , e As  System.Windows.RoutedEventArgs )

         DT.Interval = tsi

         DT.Tag = DateTime .Now

         AddHandler  DT.Tick, AddressOf  TickHandler

         DT.Start()

     End  Sub

     Private  Sub  TickHandler(ByVal  sender As  Object , ByVal  e As  EventArgs )

         Dim  DT As  System.Windows.Threading.DispatcherTimer  = CType (sender, System.Windows.Threading.DispatcherTimer )

         Dim  started As  System.DateTime  = CType (DT.Tag, System.DateTime )

         Dim  tsend As  TimeSpan  = New  TimeSpan (0, 0, 0, 10)

         Dim  ts As  TimeSpan  = DateTime .Now - started

         clockText.Text = "0:"  + ts.ToString("ss" )

         If  (ts >= tsend) Then

             DT.Stop()

             clockText.Text = "Done"

         End  If

     End  Sub

 End  Class

Sam Hobbs14y ago
Congratulations on figuring it out. I suggest you create a new thread for the new problem. You can select my reply as the answer here.
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Simen S M14y ago
I got it!! :D

But now I'm stressing with "multibinding".
Is it possible to "multibind"? You know I have like this when someone type in the two textbox with minutes and seconds, the labels minutes and seconds update, is it possible to do the same with a combobox? I have for example now, 3:00 one of the option in combobox, when someone select this, label min and sec updates?
I have tried this but it didnt work:
```
SelectedValue="{Binding Path=lblMin.Text, Mode=TwoWay}">
```
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Simen S M14y ago
I was thinking if:

Dim tsend As TimeSpan = New TimeSpan(0, 0, 0, 10)

That it counts up to 10, that if I add a - so it will be -10, it will count downwards, but no..

Or maybe:

Dim tsi As TimeSpan = New TimeSpan(0, 0, 0, 1)

Add -1, but then it must be like this:

DT.Interval = -tsi

instead of:

DT.Interval = tsi

But that didnt work either.. Ill have to figure it out tomorrow ;) thanks for answer.
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Sam Hobbs14y ago
Sorry that I forgot you need to count down. I think you can figure that out.

I don't know WPF well enough to know how to use a label instead.
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Simen S M14y ago
Thank you very muuuuchhhhhh!

I FINALLY got it working! It finally counts upwards! But I want it to count downwards. Is that possible?

EDIT: And can I only use textblock to make it count down? I can't make Labels count down?
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Simen S M14y ago
Now I removed the pictures and just added a link to the pictures instead. Should be easier to see now :)

Yes, the guy that showed me the code also said now that it was for C#, but I tried to convert the code from C# to VB.NET, and that gave me this code:

Private Sub startClock(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs)
Dim t1 As TimeSpan = New TimeSpan(0, 0, 0, 10)
Dim t2 As TimeSpan = New TimeSpan(0, 0, 0, 1)
Dim counter As Integer = 0
counter = (counter + 1)
t1 = (t1 - t2)
Dim a As String = t1.ToString
Dim b As String = a.Substring(3)
Me.clockText.Text = b
If (b = "00:00") Then
DT.Stop
End If

DT.Interval = New TimeSpan(0, 0, 0, 1)
DT.Start
End Sub

But there was nothing called "DT", VB just said "not declared".

But maybe I can try using DispatcherTimer Class? But I'm not really sure how I begin with this code. I can't really just copy the example from the link into the code text either, because "dispatcherTimer" is not declared/declaration expected. This does not work:
    Private Sub Label1(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Handles Button1.Click
        Public NotInheritable Class Dispatcher
        dispatcherTimer = New Threading.DispatcherTimer()
        AddHandler dispatcherTimer.Tick, AddressOf dispatcherTimer_Tick
        Dispatcher.Timer = New TimeSpan(0, 0, 1)
        dispatcherTimer.Start()

Or maybe TimeSpan?

Please help me out here guys :(

Thanks for answers.
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Pravin Ghadge14y ago
Hi Simen,

Code which u have copy pasted is of C# & u r working on VB.net application.

So plz check ur syntax.
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Sam Hobbs14y ago
Your images are so big it is difficlut for me to read your question.
0