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Questionnon intersecting circles Pin
Member 1422403810-Apr-19 3:54
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AnswerRe: non intersecting circles Pin
OriginalGriff10-Apr-19 3:55
protectorOriginalGriff10-Apr-19 3:55 
AnswerRe: non intersecting circles Pin
Dave Kreskowiak10-Apr-19 5:16
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AnswerRe: non intersecting circles Pin
Gerry Schmitz10-Apr-19 6:46
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Luc Pattyn10-Apr-19 9:58
professionalLuc Pattyn10-Apr-19 9:58 
Questioncan't catch task exception with C# Pin
Member 142229339-Apr-19 16:08
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AnswerRe: can't catch task exception with C# Pin
Member 142229339-Apr-19 18:07
memberMember 142229339-Apr-19 18:07 
AnswerRe: can't catch task exception with C# Pin
OriginalGriff9-Apr-19 20:05
protectorOriginalGriff9-Apr-19 20:05 
THreads get complicated, but what it boils down to is that each thread has its own "execution space" which are completely separate: an exception thrown in ThreadA will not be caught in the main thread because they are totally separate. Think about it: the main thread has a totally separate stack to ThreadA so which try...catch block should catch the ThreadA exception?
YOu can do it - the simplest solution is to use a BackgroundWorker which can catch teh error and "pass it on up" to the calling thread:
private void FrmMain_Shown(object sender, EventArgs e)
    {
    BackgroundWorker work = new BackgroundWorker();
    work.DoWork += Work_DoWork;
    work.RunWorkerCompleted += Work_RunWorkerCompleted;
    work.RunWorkerAsync();
    }

private void Work_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
    {
    Exception ex = e.Error;
    if (ex != null) Console.WriteLine(ex.Message);
    }

private void Work_DoWork(object sender, DoWorkEventArgs e)
    {
    throw new NotImplementedException();
    }
But there are also ways using asynchronous delegates and the Task Parallel Library, but I haven't needed to use those yet.
Sent from my Amstrad PC 1640
Never throw anything away, Griff
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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AnswerRe: can't catch task exception with C# Pin
Nathan Minier10-Apr-19 2:13
professionalNathan Minier10-Apr-19 2:13 
AnswerRe: can't catch task exception with C# Pin
Richard Deeming15-Apr-19 8:11
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QuestionCompare Two Complex List of data Pin
V Krishna9-Apr-19 16:07
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Gerry Schmitz10-Apr-19 6:55
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QuestionRe: Compare Two Complex List of data Pin
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QuestionHow to update my list1 property value by list2 property value by joining Pin
Mou_kol9-Apr-19 9:42
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QuestionHow to equi join and left join between 3 List<t> Pin
Mou_kol9-Apr-19 9:41
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QuestionApplication Server and Connection Method Pin
mikiz8-Apr-19 21:30
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GeneralRe: Application Server and Connection Method Pin
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GeneralRe: Application Server and Connection Method Pin
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GeneralRe: Application Server and Connection Method Pin
Eddy Vluggen9-Apr-19 5:48
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AnswerRe: Application Server and Connection Method Pin
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GeneralRe: Application Server and Connection Method Pin
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