473,410 Members | 1,976 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,410 software developers and data experts.

Async strange behaviour

adh
I am reading a part of my data using an Asyn call and for some starnge
reason it comes back again (twice!! per call) to the line:
Result=Deleg.BeginInvoke(ar)
The 2'nd time mixes things up (result is empty) and I get the exeption:
---------------------------
RefreshData_Complete
---------------------------
Async Exeption: EndInvoke can only be called once for each asynchronous
operation.
---------------------------
OK
---------------------------
I follow the help & demo's step by step and cann't see any reason for
dis misbehaviour.
VB.NET 2003

Thanks, adh

*** Sent via Developersdex http://www.developersdex.com ***
Nov 23 '05 #1
1 878
adh
OK, Sorry about that.
Problem (Bug) was 20 Miles away from there. It just jumped there again
bcs the Try/Catch.
(Took me 2 days..........)

Thanks to all who intended to help me (next time...),
adh

*** Sent via Developersdex http://www.developersdex.com ***
Nov 23 '05 #2

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

8
by: Dave | last post by:
I'm using the BeginInvoke method of a delegate to invoke a thread asynchronously and then use the EndInvoke to retrieve the value. This works wonderfully until a Serviced Component is added to...
0
by: Passynkov, Vadim | last post by:
I am using Asynchronous Query Processing interface from libpq library. And I got some strange results on Solaris My test select query is 'SELECT * from pg_user;' and I use select system...
2
by: Tom Vandeplas | last post by:
Hi all, When using an asynchronous API call (in my case WriteFileEx) in a thread it seems to become blocking instead of non-blocking (see details below). Can somebody explain me what is...
6
by: Amy L. | last post by:
I am working on a project where I will have a ton of async DNS calls in a console application. I would like to process the results of the Aync calls on the same thread that made the async call. ...
5
by: Paul Hasell | last post by:
Hi, I'm trying to invoke a web method asynchronously but just can't seem to get it to tell me when it has finished! Below is the code I am (currently) using: private void...
4
by: Roemer | last post by:
Hey all While working with Async Methods and Networking I found something very strange or better a bug? To test it yourself create a new Windows Application with just a Button on the Form. ...
0
by: hynek.cihlar | last post by:
A strange behaviour thatI found in ASP.NET 2.0. I am trying to issue a callback request (handled by ICallbackEventHandler and RaiseCallbackEvent) and a regular GET request in the client browser...
8
by: Dinsdale | last post by:
I am trying to write a Tcp "Server" that opens a class that wraps a tcp socket when a new connection is made (Listener.AcceptSocket()). Everything is going swimmingly except when I try to close the...
11
by: atlaste | last post by:
Hi, In an attempt to create a full-blown webcrawler I've found myself writing a wrapper around the Socket class in an attempt to make it completely async, supporting timeouts and some scheduling...
0
BarryA
by: BarryA | last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
by: Hystou | last post by:
There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
0
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
0
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
0
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
0
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing,...
0
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.