I have made an application that loads data through an
OleDbDatareader . I would like the user to be able to
interupt the load.
Now, I could of course include an interrupt button in the
form. However, once the load starts program excution will
be in the object of my dataload class. And so I suspect
that the users interaction with an interrupt button
(which could set a flag in the load object) will not be
handled.
Instead of a lot of experimenting, I thought that I would
ask for some hints, from those who might already know how
to do this.
Regards,
Frank
6  1221 
Hi Frank,
Sorry, I'm busy on another query and then off to bed, so ...
The quick answer (ie. not telling you exactly how) is to spin off a Thread
to do the load. If the User hits that [Interrupt] button, then abort the
Thread.
You'll have to have a Try .. Catch ex As ThreadAbortExce ption so that your
app doesn't fall over.
Regards,
Fergus
* "Frank" <an*******@disc ussions.microso ft.com> scripsit: I have made an application that loads data through an
OleDbDatareader . I would like the user to be able to
interupt the load.
Now, I could of course include an interrupt button in the
form. However, once the load starts program excution will
be in the object of my dataload class. And so I suspect
that the users interaction with an interrupt button
(which could set a flag in the load object) will not be
handled.
Instead of a lot of experimenting, I thought that I would
ask for some hints, from those who might already know how
to do this.
I think you got very good answers in your previous thread.
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
Hi Fergus,
Thanks, I'll work out how. Just needed to know, if
threading was neccesary or there was another way. I'll
read up on handling threads and then get to it.
Regards,
Frank -----Original Message-----
Hi Frank,
Sorry, I'm busy on another query and then off to
bed, so ...
The quick answer (ie. not telling you exactly how)
is to spin off a Threadto do the load. If the User hits that [Interrupt]
button, then abort theThread.
You'll have to have a Try .. Catch ex As
ThreadAbortExce ption so that yourapp doesn't fall over.
Regards,
Fergus
.
* "Frank" <an*******@disc ussions.microso ft.com> scripsit: threading was neccesary or there was another way. I'll
read up on handling threads and then get to it.
Notice that msdn contains a big chapter about threading of you want to
know the background information:
Threading (.NET Framework Developer's Guide)
<http://msdn.microsoft. com/library/en-us/cpguide/html/cpconthreading. asp>
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
Thanks, this looks good!
Frank -----Original Message-----
* "Frank" <an*******@disc ussions.microso ft.com> scripsit: threading was neccesary or there was another way. I'll
read up on handling threads and then get to it.
Notice that msdn contains a big chapter about threading
of you want toknow the background information:
Threading (.NET Framework Developer's Guide)
<http://msdn.microsoft.com/library/en-
us/cpguide/html/cpconthreading. asp>
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
<http://www.mvps.org/dotnet>
.
In general I don't like the idea of Aborting a thread too much - it would be
much better to stick a flag in the thread main loop to terminate cleanly.
"Frank" <an*******@disc ussions.microso ft.com> wrote in message
news:08******** *************** *****@phx.gbl.. . I have made an application that loads data through an
OleDbDatareader . I would like the user to be able to
interupt the load.
Now, I could of course include an interrupt button in the
form. However, once the load starts program excution will
be in the object of my dataload class. And so I suspect
that the users interaction with an interrupt button
(which could set a flag in the load object) will not be
handled.
Instead of a lot of experimenting, I thought that I would
ask for some hints, from those who might already know how
to do this.
Regards,
Frank This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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