EndInvoke can only be called once for each asynchronous operation

by: Vishal Gupta | last post by:

Hi, I am trying to call a function in my web page, asynchronously, to improve performance. I am using a function delegate to do that. I have a web page. When the user clicks a button, i want to...

.NET Framework

about BeginInvoke and EndInvoke

by: Jet Leung | last post by:

Hi All, There is a problem about asynchronism process.If I run the method by BeginInvoke() and how can I know when the method is finish? And maybe I can say when I can use EndInvoke()?

C# / C Sharp

BeginInvoke, EndInvoke leaves extra thread

by: Nick Palmius | last post by:

Hello, I am experimenting with async callbacks using BeginInvoke and EndInvoke, and although my code which I have shown below works, when the program stops at the end (on the ReadLine()), there...

C# / C Sharp

Using EndInvoke From within an AsyncCallback?

by: Doug Thews | last post by:

I've been working on some samples that use BeginInvoke/EndInvoke. In one example, I call BeginInvoke and pass it an AsyncCallback function pointer. I was messing around with ReaderWriterLocks and...

C# / C Sharp

EndInvoke can only be called once for each asynchronous operation

by: scott ocamb | last post by:

hello i am getting this error EndInvoke can only be called once for each asynchronous operation I have coded an app using the async method development pattern. This error occurred under...

.NET Framework

Cancel an Asynchronous operation?

by: Robinson | last post by:

I can start an Asynchronous operation against a data source with SQLCommand.BeginExecuteReader, allowing me to loop, checking for user cancellation before the operation has completed, but how then...

Visual Basic .NET

can I use IAsyncResult.IsCompleted Property to know if Endxxx was already called?

by: semedao | last post by:

Hi all, someone know if I can use the IAsyncResult.IsCompleted Property of IAsyncResult that return from Socket.Beginxxx methods to determine if the Endxxx method already called perior or not ? I...

C# / C Sharp

Asynchronous processing

by: Diffident | last post by:

Hello All, I would like to know how I can process a non-CPU bound operation in an asynchronous fashion so that the original thread is returned to the thread pool? Fritz Onion wrote a very...

ASP.NET

Determine underlying Object in Asynchronous EndInvoke().

by: Peter | last post by:

Hi I call some "worker"-Methods asyncronous. here some simplified code .... public delegate long AsyncWCaller(string parameter); ....

C# / C Sharp

Is that possible of reading the .csv file in column wise and the column have different lengths ?

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...

C / C++

What is ONU?

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,...

General

Changing the language in Windows 10

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...

Windows Server

Problem With Comparison Operator <=> in G++

by: Oralloy | last post by:

Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...

C / C++

Discussion: How does Zigbee compare with other wireless protocols in smart home applications?

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...

General

Access Europe - Using VBA to create a class based on a table - Wed 1 May

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...

Microsoft Access / VBA

Couldn’t get equations in html when convert word .docx file to html file in C#.

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...

C# / C Sharp

Windows Forms - .Net 8.0

by: adsilva | last post by:

A Windows Forms form does not have the event Unload, like VB6. What one acts like?

Visual Basic .NET

transfer the data from one system to another through ip address

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 ...

C# / C Sharp

EndInvoke can only be called once for each asynchronous operation

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