exceptions in timer dependent class

[Przemo]

I have Class1 which performs some data calculations on
System.Timers.T imer.Elapsed event.

Public Class Class1
Private WithEvents tmrReadSerialDa ta As New
System.Timers.T imer

Public Sub New()
tmrReadSerialDa ta.Interval = 1000
End Sub

Public Sub StartIt()
tmrReadSerialDa ta.Start()
End Sub

Public Sub StopIt()
tmrReadSerialDa ta.Stop()
End Sub

Private Sub tmrReadSerialDa ta_Tick(ByVal sender As
System.Object, ByVal e As System.Timers.E lapsedEventArgs )
Handles tmrReadSerialDa ta.Elapsed

' This line should throw an exception because of
' different culture setting (2.54 in spite of 2,54)
' but it doesn't, exits sub and Beep is not performed
Dim a As Double = Double.Parse("2 .54", New
Globalization.C ultureInfo("pl-PL"))
Beep

End Sub

Public Sub Test()

' Ta linia nie powoduje błędu - konwersja liczby
zapisanej w ustawieniach regionalnych USA
Dim b As Double = Double.Parse("2 .54", New
Globalization.C ultureInfo("en-US"))
Dim a As Double = Double.Parse("2 .54")
Beep()

End Sub

End Class


When I use this object from my WinForm and click button
which performs Class1.StartIt, tmrReadSerialDa ta_Tick
exits on line which should cause an exception but without
it!
When I place same code in my WinForm exceprion occures.

1. Is that exception caused or not?
2. Is Timer.Elapsed method run in different thread?
3. What to do to be informed of such exceptions in run-
time (program can be stopped but with normal info about
exception) - I was looking for long time what was the
reason for not executing some code after it.

Thank you

[Cor Ligthert]

Re: exceptions in timer dependent class

Przemo,

I am curious, what is the reason you are using the C# code in your VBNet
project for conversion, while some of the the more advantage C# users would
like to have those powerfull VBNet convert methods?

Cor

[Ledder H.]

Re: exceptions in timer dependent class

Sorry, but did you help Przemo?
I can't understand you

best regards
[color=blue]
>-----Original Message-----
>Przemo,
>
>I am curious, what is the reason you are using the C#[/color]
code in your VBNet[color=blue]
>project for conversion, while some of the the more[/color]
advantage C# users would[color=blue]
>like to have those powerfull VBNet convert methods?
>
>Cor
>
>
>.
>[/color]

[Cor Ligthert]

Re: exceptions in timer dependent class

> Sorry, but did you help Przemo?[color=blue]
> I can't understand you[/color]

I thought this is a newsgroup, not a kind of helpdesk.

Now I can't understand you?

Cor

[Przemo]

Re: exceptions in timer dependent class

Thanks for replay, but I don't nderstad.
Am I using C# code?? I am using VB.NET.
This code compiles in vb.net project with no errors.
So what did you mean?
[color=blue]
>-----Original Message-----
>Przemo,
>
>I am curious, what is the reason you are using the C#[/color]
code in your VBNet[color=blue]
>project for conversion, while some of the the more[/color]
advantage C# users would[color=blue]
>like to have those powerfull VBNet convert methods?
>
>Cor
>
>
>.
>[/color]

[Cor Ligthert]

Re: exceptions in timer dependent class

Przemo,[color=blue]
> Thanks for replay, but I don't nderstad.
> Am I using C# code?? I am using VB.NET.
> This code compiles in vb.net project with no errors.
> So what did you mean?
>[/color]
In that are you right, however you limit yourself in my opinion to a very
small subset. When you would do by instance this,

For i = 1 to 1000
a +=5
Next

And than ask something as why is this not efficient to a newsgroup.

It is using as well VBNet code, however most people use
a = 5*1000

So I was curious why you are doing that?

Cor

[Przemo]

Re: exceptions in timer dependent class

My code was only example (small peace of my Comm parsing
Class).
I didn't want to know if it is efficient or not.
I couldn't understand why this line which should cause
exception do not do it in my class.

Write if you can help.
[color=blue]
>-----Original Message-----
>Przemo,[color=green]
>> Thanks for replay, but I don't nderstad.
>> Am I using C# code?? I am using VB.NET.
>> This code compiles in vb.net project with no errors.
>> So what did you mean?
>>[/color]
>In that are you right, however you limit yourself in my[/color]
opinion to a very[color=blue]
>small subset. When you would do by instance this,
>
>For i = 1 to 1000
> a +=5
>Next
>
>And than ask something as why is this not efficient to a[/color]
newsgroup.[color=blue]
>
>It is using as well VBNet code, however most people use
>a = 5*1000
>
>So I was curious why you are doing that?
>
>Cor
>
>
>
>.
>[/color]

[Cor Ligthert]

Re: exceptions in timer dependent class

Przemo,

This throws an exception when I try this.

Private Sub Button1_Click(B yVal sender As System.Object, _
ByVal e As System.EventArg s) Handles Button1.Click
' This line should throw an exception because of
' different culture setting (2.54 in spite of 2,54)
' but it doesn't, exits sub and Beep is not performed
Dim a As Double = Double.Parse("2 .54", New
Globalization.C ultureInfo("pl-PL"))
Beep()
End sub

I hope this helps?

Cor