Hi,
I am using COM interop to invoke MS word from my .net app. If word pops up a
dialog box, my thread obviously hangs until the dialog is answered.
Here's the problem: because the app is running on a server, there is nobody
there to answer the dialog, so I have another thread that calls Abort() on
the first thread in the event that the operation doesn't complete within a
certain amount of time.
Unfortunately, whilst the call to Thread.Abort() works, the dialog box stays
up and the subsequent Thread.Join() hangs until the dialog is cancelled.
Is there any way round this behaviour? This isn't going to happen very often
so I don't care how inefficient it is, but it's got to run on an unattended
server so I can't afford to have my app get stuck forever.
TIA
Andy
13  3487 
The abort does not actually get delivered to the managed thread until it
returns from the unmanaged call. There is no way to get around that
behavior.
You could try running the interop call in a separate appdomain, and then
unload the appdomain instead of using an abort. I've observed that the CLR
will go to greater lengths to unload frozen threads when unloading an
appdomain then when you simply call abort.
Another option is to run it in a totally separate process and then unload
the process. You could use remoting between processes to send data
back-and-forth between the main process and the helper process.
In short, there is no good way to shutdown a thread frozen in an unmanaged
call.
"Andy Fish" <aj****@blueyon der.co.uk> wrote in message
news:uI******** ******@TK2MSFTN GP09.phx.gbl... Hi,
I am using COM interop to invoke MS word from my .net app. If word pops up
a dialog box, my thread obviously hangs until the dialog is answered.
Here's the problem: because the app is running on a server, there is
nobody there to answer the dialog, so I have another thread that calls
Abort() on the first thread in the event that the operation doesn't
complete within a certain amount of time.
Unfortunately, whilst the call to Thread.Abort() works, the dialog box
stays up and the subsequent Thread.Join() hangs until the dialog is
cancelled.
Is there any way round this behaviour? This isn't going to happen very
often so I don't care how inefficient it is, but it's got to run on an
unattended server so I can't afford to have my app get stuck forever.
TIA
Andy
A user dialog on a server indicates either poor design or usage of a
component outside of its intended environment. Which of the two can you
repair?
--
Regards,
Alvin Bruney
Shameless Author plug
The Microsoft Office Web Components Black Book with .NET http://tinyurl.com/27cok
"Andy Fish" <aj****@blueyon der.co.uk> wrote in message
news:uI******** ******@TK2MSFTN GP09.phx.gbl... Hi,
I am using COM interop to invoke MS word from my .net app. If word pops up
a dialog box, my thread obviously hangs until the dialog is answered.
Here's the problem: because the app is running on a server, there is
nobody there to answer the dialog, so I have another thread that calls
Abort() on the first thread in the event that the operation doesn't
complete within a certain amount of time.
Unfortunately, whilst the call to Thread.Abort() works, the dialog box
stays up and the subsequent Thread.Join() hangs until the dialog is
cancelled.
Is there any way round this behaviour? This isn't going to happen very
often so I don't care how inefficient it is, but it's got to run on an
unattended server so I can't afford to have my app get stuck forever.
TIA
Andy
If your service runs without "desktop interaction" enabled, it's impossible
to get around this issue. If your service runs with desktop interaction
enabled (it shouldn't) you can try to simulate Keyboard input using
SendInput (you have to make sure the dialog got focus), or you can try to
get the Window handle of the Dialog and use SendMessage to simulate a
key-press. The problem of course is "what dialog is there actually
displayed?", you won't press OK on any possible dialog don't you?
This is one of the many reasons you shouldn't try to automate "Office
applications" (or any other interactive application) on a server.
Willy.
"Andy Fish" <aj****@blueyon der.co.uk> wrote in message
news:uI******** ******@TK2MSFTN GP09.phx.gbl... Hi,
I am using COM interop to invoke MS word from my .net app. If word pops up
a dialog box, my thread obviously hangs until the dialog is answered.
Here's the problem: because the app is running on a server, there is
nobody there to answer the dialog, so I have another thread that calls
Abort() on the first thread in the event that the operation doesn't
complete within a certain amount of time.
Unfortunately, whilst the call to Thread.Abort() works, the dialog box
stays up and the subsequent Thread.Join() hangs until the dialog is
cancelled.
Is there any way round this behaviour? This isn't going to happen very
often so I don't care how inefficient it is, but it's got to run on an
unattended server so I can't afford to have my app get stuck forever.
TIA
Andy
"Alvin Bruney [MVP]" <vapor at steaming post office> wrote in message
news:OT******** ******@TK2MSFTN GP12.phx.gbl... A user dialog on a server indicates either poor design or usage of a
component outside of its intended environment. Which of the two can you
repair?
I think it's the latter, but I don't see any other option.
I'm trying to convert a word format document to WordProcessingM L. In this
case the user has uploaded a document with a password and word is asking for
the password.
AFAIK there is no other way of converting a .doc to XML other than using
winword.exe. This is the real problem - MS are pushing WordProcessingM L as a
way of processing word documents on the server but it does not offer any
server-side solution to convert to and from .doc format.
From what I can see there is no way to detect if the doc is
password-protected without opening it, and no way to stop word putting up
the dialog.
any other more "out-of-the-box" suggestions would be welcome
Andy
--
Regards,
Alvin Bruney
Shameless Author plug
The Microsoft Office Web Components Black Book with .NET
http://tinyurl.com/27cok
"Andy Fish" <aj****@blueyon der.co.uk> wrote in message
news:uI******** ******@TK2MSFTN GP09.phx.gbl... Hi,
I am using COM interop to invoke MS word from my .net app. If word pops
up a dialog box, my thread obviously hangs until the dialog is answered.
Here's the problem: because the app is running on a server, there is
nobody there to answer the dialog, so I have another thread that calls
Abort() on the first thread in the event that the operation doesn't
complete within a certain amount of time.
Unfortunately, whilst the call to Thread.Abort() works, the dialog box
stays up and the subsequent Thread.Join() hangs until the dialog is
cancelled.
Is there any way round this behaviour? This isn't going to happen very
often so I don't care how inefficient it is, but it's got to run on an
unattended server so I can't afford to have my app get stuck forever.
TIA
Andy
In essence what you are witnessing is one of the reasons why they warn you that Office is not suitable for server side use (theres lots of other reasons too like threading throughput). IIRC correctly, the WordML schema has now been published and generating WordML would be a more scaleable and robust solution than trying to automate word on the server
Regards
Richard Blewett - DevelopMentor http://www.dotnetconsult.co.uk/weblog http://www.dotnetconsult.co.uk
The abort does not actually get delivered to the managed thread until it
returns from the unmanaged call. There is no way to get around that
behavior.
You could try running the interop call in a separate appdomain, and then
unload the appdomain instead of using an abort. I've observed that the CLR
will go to greater lengths to unload frozen threads when unloading an
appdomain then when you simply call abort.
Another option is to run it in a totally separate process and then unload
the process. You could use remoting between processes to send data
back-and-forth between the main process and the helper process.
In short, there is no good way to shutdown a thread frozen in an unmanaged
call.
"Andy Fish" <aj****@blueyon der.co.uk> wrote in message
news:uI******** ******@TK2MSFTN GP09.phx.gbl... Hi,
I am using COM interop to invoke MS word from my .net app. If word pops up
a dialog box, my thread obviously hangs until the dialog is answered.
Here's the problem: because the app is running on a server, there is
nobody there to answer the dialog, so I have another thread that calls
Abort() on the first thread in the event that the operation doesn't
complete within a certain amount of time.
Unfortunately, whilst the call to Thread.Abort() works, the dialog box
stays up and the subsequent Thread.Join() hangs until the dialog is
cancelled.
Is there any way round this behaviour? This isn't going to happen very
often so I don't care how inefficient it is, but it's got to run on an
unattended server so I can't afford to have my app get stuck forever.
TIA
Andy
--
No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.7.1 - Release Date: 19/01/2005
[microsoft.publi c.dotnet.langua ges.csharp]
Thanks Richard, you understand my problem exactly !!
My application makes extensive use of WordML, and is a model of exactly the
type of thing MS want people to use WordML for. Unfortunately, when the user
uploads a document, I need to convert it from .doc format to WordML so get
the process started. Microsoft doesn't seem to have thought of this part of
it, so the only option open to me is to automate Word.
"Richard Blewett [DevelopMentor]" <ri******@NOSPA Mdevelop.com> wrote in
message news:ep******** ******@TK2MSFTN GP14.phx.gbl... In essence what you are witnessing is one of the reasons why they warn you
that Office is not suitable for server side use (theres lots of other
reasons too like threading throughput). IIRC correctly, the WordML schema
has now been published and generating WordML would be a more scaleable and
robust solution than trying to automate word on the server
Regards
Richard Blewett - DevelopMentor
http://www.dotnetconsult.co.uk/weblog
http://www.dotnetconsult.co.uk
The abort does not actually get delivered to the managed thread until it
returns from the unmanaged call. There is no way to get around that
behavior.
You could try running the interop call in a separate appdomain, and then
unload the appdomain instead of using an abort. I've observed that the CLR
will go to greater lengths to unload frozen threads when unloading an
appdomain then when you simply call abort.
Another option is to run it in a totally separate process and then unload
the process. You could use remoting between processes to send data
back-and-forth between the main process and the helper process.
In short, there is no good way to shutdown a thread frozen in an unmanaged
call.
"Andy Fish" <aj****@blueyon der.co.uk> wrote in message
news:uI******** ******@TK2MSFTN GP09.phx.gbl... Hi,
I am using COM interop to invoke MS word from my .net app. If word pops
up
a dialog box, my thread obviously hangs until the dialog is answered.
Here's the problem: because the app is running on a server, there is
nobody there to answer the dialog, so I have another thread that calls
Abort() on the first thread in the event that the operation doesn't
complete within a certain amount of time.
Unfortunately, whilst the call to Thread.Abort() works, the dialog box
stays up and the subsequent Thread.Join() hangs until the dialog is
cancelled.
Is there any way round this behaviour? This isn't going to happen very
often so I don't care how inefficient it is, but it's got to run on an
unattended server so I can't afford to have my app get stuck forever.
TIA
Andy
--
No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.7.1 - Release Date: 19/01/2005
[microsoft.publi c.dotnet.langua ges.csharp]
Hmmm - you are in a bad place basically. Can you get the user to upload in WordML format in the first place? Assuming they do it via http, maybe you could check the content type of the PUT and if it is not text/xml return an error to them so they know what they have done wrong
Regards
Richard Blewett - DevelopMentor http://www.dotnetconsult.co.uk/weblog http://www.dotnetconsult.co.uk
Thanks Richard, you understand my problem exactly !!
My application makes extensive use of WordML, and is a model of exactly the
type of thing MS want people to use WordML for. Unfortunately, when the user
uploads a document, I need to convert it from .doc format to WordML so get
the process started. Microsoft doesn't seem to have thought of this part of
it, so the only option open to me is to automate Word.
"Richard Blewett [DevelopMentor]" <ri******@NOSPA Mdevelop.com> wrote in
message news:ep******** ******@TK2MSFTN GP14.phx.gbl... In essence what you are witnessing is one of the reasons why they warn you
that Office is not suitable for server side use (theres lots of other
reasons too like threading throughput). IIRC correctly, the WordML schema
has now been published and generating WordML would be a more scaleable and
robust solution than trying to automate word on the server
Regards
Richard Blewett - DevelopMentor
http://www.dotnetconsult.co.uk/weblog
http://www.dotnetconsult.co.uk
Unfortunately that's not an option from a business perspective. we'll have
to have some kind of solution even if it comes down to a robot arm which
presses the escape key every 20 seconds ;-))
current options I'm looking at are (a) using SendKeys; or (b) killing every
copy of winword.exe on the machine. Not what you'd call elegant
Andy
"Richard Blewett [DevelopMentor]" <ri******@NOSPA Mdevelop.com> wrote in
message news:ub******** ******@TK2MSFTN GP09.phx.gbl... Hmmm - you are in a bad place basically. Can you get the user to upload in
WordML format in the first place? Assuming they do it via http, maybe you
could check the content type of the PUT and if it is not text/xml return
an error to them so they know what they have done wrong
Regards
Richard Blewett - DevelopMentor
http://www.dotnetconsult.co.uk/weblog
http://www.dotnetconsult.co.uk
Thanks Richard, you understand my problem exactly !!
My application makes extensive use of WordML, and is a model of exactly
the
type of thing MS want people to use WordML for. Unfortunately, when the
user
uploads a document, I need to convert it from .doc format to WordML so get
the process started. Microsoft doesn't seem to have thought of this part
of
it, so the only option open to me is to automate Word.
"Richard Blewett [DevelopMentor]" <ri******@NOSPA Mdevelop.com> wrote in
message news:ep******** ******@TK2MSFTN GP14.phx.gbl... In essence what you are witnessing is one of the reasons why they warn
you
that Office is not suitable for server side use (theres lots of other
reasons too like threading throughput). IIRC correctly, the WordML
schema
has now been published and generating WordML would be a more scaleable
and
robust solution than trying to automate word on the server
Regards
Richard Blewett - DevelopMentor
http://www.dotnetconsult.co.uk/weblog
http://www.dotnetconsult.co.uk
"Andy Fish" <aj****@blueyon der.co.uk> wrote in message
news:OG******** ******@TK2MSFTN GP10.phx.gbl... Unfortunately that's not an option from a business perspective. we'll have
to have some kind of solution even if it comes down to a robot arm which
presses the escape key every 20 seconds ;-))
current options I'm looking at are (a) using SendKeys; or (b) killing
every copy of winword.exe on the machine. Not what you'd call elegant
Andy
Did you look for alternatives that don't require Word at all?
Following a just a few I have used for asp based applications, guess they
offer the same for asp.net too. http://www.polarsoftware.com/product...rter/index.asp http://officewriter.softartisans.com...riter-253.aspx
Willy. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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