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by: Dave Arkley |
last post by:
I have a type
Dictionary<int, List<int>> oKP = new Dictionary<int, List<int>>();
Im populating the dictionary so that a key is associated with a list of
integers. I then remove some, or possible all integers from the list by using
foreach:
foreach (int i in oKP.Keys)
{
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by: Anders Both |
last post by:
My client-server system, is begining (when more client are connected)
sometimes to throw an exception like this:
Collection was modified; enumeration operation may not execute.
foreach (tcClient per in tcClientList) <-- Exception throw by this line.
{
if (tcClient!=tcClientNow) tcClient.flush();
}
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by: Tamir Khason |
last post by:
I have a queue, wich recieves a lot of messages (between 10 and 100 a
second)
There is thread that takes care on this queue, but as far as I see it can
not follow the messages so "Collection was modified; enumeration operation
may not execute." exception thows. How to take care on it
txn
BTW. this not any other problem then reading from queue. I double checked
it.
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by: Chuck Bowling |
last post by:
I have a collection that I want to edit. When I remove an object from the
collection and then try to enumerate thru it with the foreach statement it
throws an exception - "Collection was modified; enumeration operation may
not execute."
Can somebody tell me how to fix this?
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by: David C |
last post by:
This is very strange. Say I have code like this. I am simply looping
through a collection object in a foreach loop.
Course course = new Course();
foreach(Student s in course.Students)
{
Console.WriteLine(s.StudentID);
}
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by: Tim |
last post by:
Hi,
I'm very new to .NET and am programming in C#. I have a web application
where i have two list boxes. Its kind of like a shopping card where you can
add items from one 'locations' list box to the 'locations selected' (cart)
listbox. I have a hirarchy of locations - main locations and sub
locations. main locations being the parent locations, and the sub locations
being the child locations.
I want to be able to check to see if the...
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by: Geoffrey |
last post by:
Hello,
I work with .net remoting,to simplify, when the client connected, he send an
handle to an object, the object is used to exchange message and events. no
problem.
In my server, I keep a list of all actives clients and the handle of each.,
no problem
In remoting, it's difficult to see when a client is disconnected, so I use
asynchronous call to contact the client and if I got an error when I call
EndInvoke =the client is...
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by: nondos |
last post by:
Hello
I have a thread that run loop in queue variable like this:
For each <somethingas <somethingin <queue variable>
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by: Michel Racicot |
last post by:
When executing the following function, I get this error message:
Collection was modified; enumeration operation may not execute.
The only thing that can modify lstClients is when I add one in it and I'm
sure that my listener isn't accepting another connection. As you can see,
I even locked it!!! What is wrong?
private void ReceiveMessage()
{
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by: SaradaV |
last post by:
Hi all,
I am working on vb.net web application and Often getting the following error. But even with the same inputs it is not reproducable. In most of the cases its executing successfully and in some rare (unknown) cases only its failing. The interesting point is; I just noted one set of the inputs caused the problem and tried to reproduce the same problem but not able to reproduce the error. One time error came at the firstline of the...
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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, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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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 effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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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 then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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