Timer functionality

Question

Timer functionality

Simon Scott 306

Good afternoon,

Hopefully someone can help me with this.

I simply want to refresh a label via the Timer function to show the current timezone on the PC. This will be changed at regular intervals hence the requirement.

Here is my code...

Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick

    Dim timeZone As System.TimeZone = timeZone.CurrentTimeZone
    Label3.Text = timeZone.DaylightName
    label3.Refresh()

End Sub

On the form load sub i have added this code in...

Timer1.Enabled = True
Timer1.Interval = 1000
Timer1.Start()

Why doesn't the label change after 10 seconds when i change the timezone on the PC?

Many thanks
Simon

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Answer accepted by question author

Xingyu Zhao-MSFT 5,381

Hi @Simon Scott ,
Current time zone is cached, so you need to reset the cached value.
Here's the code you can refer to.

    Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick  
          
        System.Globalization.CultureInfo.CurrentCulture.ClearCachedData()  
          
        Dim timeZone As System.TimeZone = TimeZone.CurrentTimeZone  
        Label3.Text = timeZone.StandardName  
        Label3.Refresh()  
    End Sub

Hope it could be helpful.

Best Regards,
Xingyu Zhao
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Answer 1

Simon Scott 306

That works, thank you very much :)

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