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You are welcome. Cheers.
I wasn't, now I am, then I won't be anymore.
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Actually that question has been asked here many times, try searching delegates in this forum, you will find many explanations and some of them are more enlightening that the MSDN doco.
I find some forum explanations to be easier to understand than microsofts own interpretation.
Never underestimate the power of human stupidity
RAH
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Hi Friends,
I need javascript coding for textbox to allow only alphabets on key press,
provide me solution
Thanks
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ks.vignesh wrote: javascript coding
Asking for javascript code in the C# forum is not likely to get you a whole bunch of relevant answers.
http://www.codeproject.com/Forums/1580226/JavaScript.aspx[^]
Why is common sense not common?
Never argue with an idiot. They will drag you down to their level where they are an expert.
Sometimes it takes a lot of work to be lazy
Please stand in front of my pistol, smile and wait for the flash - JSOP 2012
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Voted 1 for (i) wrong forum (this has nothing to do with C#) and (ii) 'gimme codez' – we are not here to 'provide you solution' to a problem, that is what Google is for; CP is for asking specific questions when you are having a problem with an isolated aspect of your code.
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Using Scalabledesktop dll it is possible...?
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The best placed people to answer that question are here[^]. Whenever you have a vendor specific problem, you should always think that they would be the best source for answers.
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I have A string that contain a Sentence.
i have write 5 diff words from 5 diff language into this string .
string Words = "this is English , این فارسی است , c'est françaises ,यह भारतीय है,это Россия"
how to determine the words language , i mean how to know which word belong to which language .
i hope you get what i mean .
any idea w'll be helpfull.
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By comparing them to words from a dictionary. The dictionary that returns the least spellingerrors on the piece o' string, is the correct language.
Having strings in multiple languages makes even Google Translate choke when asked to guess. It would mean that you had to test every possible *word* of the string (ideally even word-combinations).
Bastard Programmer from Hell 
if you can't read my code, try converting it here[^]
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mohammadkaab wrote: i have write 5 diff words from 5 diff language into this string .
Looks to me like you have 5 different phrases, not words, and that each phrase is separate by a comma.
So first step is to break it into those parts.
After that you no longer have a problem of 5 different languages together. Instead you have a problem of identify a language (one language) given a string with one language. And then doing that five times.
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I have worker threads writing to my GUI right now with the following code. My issue is that I'm getting MDA errors (ContextSwitchDeadlock and DisconnectedContext) during debugging and when I close the program, the child threads are still trying to write to controls that are nonexistent anymore, which generates errors as well.
I'm guessing I need to learn the proper way to use a delegate with multithreading/guis, so I was wondering if someone could provide some guidance and the proper/efficient way to communicate to the main form thread, from a child thread.
Thanks for reading!
this.Invoke((MethodInvoker)delegate()
{
lvwServicesOutput.Items[selectedIndex].SubItems[2].Text = "service not present";
});
this.BeginInvoke((MethodInvoker)delegate()
{
tbxServerName2.Enabled = false;
tbxServerName2.Text = "";
tbxServiceName.Enabled = false;
tbxServiceName.Text = "";
serviceNameList = true;
});
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Using Invoke (synchronous) or BeginInvoke (asynchronous) to communicate with the UI thread is the correct approach. However, it is possible for a control to disappear while the background thread is processing, so you need to catch that exception (I couldn't find a way to guarantee that it can never happen).
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Hi Bob,
I stumbled upon this link in googling and in one of the comments it was mentioned to set child thread to .IsBackground equaling true, so I did so (see brief code snip) and that seems to have eliminated the errors when closing my program. I'm glad the invoke/begininvoke are the correct way to do things, although I would still like to learn more about delegates and their proper usage.
My limited understanding of them now is that they are (at least in my project) an intermediary with the control on the main form, so that you can instruct the main thread/form thread to do something. It appears to have the ability to insert an item into the main form thread queue of what it is doing. Is that correct?
serviceMonitorThread = new Thread(new ThreadStart(serviceMonitor));
serviceMonitorThread.IsBackground = true;
serviceMonitorThread.Start();
Updating Your Form from Another Thread without Creating Delegates for Every Type of Update[^]
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If you set IsBackground, the worker thread will be killed when the main form is closed. That will solve the invoke-on-disposed-control issue but it is sometimes not what you want.
Delegates are simply typed function pointers. They are typically used to hook to events, which are some syntactic niceness around multicast delegates (i.e. the code calls what looks like one function, and several handler functions are run). They don't have anything directly to do with multithreading. Examples of non-threaded delegate usage include such obvious things as Click handlers on buttons (and all other UI events).
However, the way the Framework exposes threading functionality is either through Thread or BackgroundWorker. Thread takes a delegate to specify the method that should be run, and BackgroundWorker has several events which you can hook delegates onto.
turbosupramk3 wrote: It appears to have the ability to insert an item into the main form thread queue of what it is doing. Is that correct?
This is a decent description of the purpose of the Invoke or BeginInvoke methods. They ask the relevant thread to run a method (specified by a delegate) when appropriate.
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You'd usually set them to be "background-threads"; a normal thread would live on if the UI-thread exits, a background-thread[^] does not - hence, it will not write to a non-existing form 
Bastard Programmer from Hell
if you can't read my code, try converting it here[^]
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<--- Forever learning new things, even the obvious ones 
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Hello friends;
I am writing in a listview data from an array. It is listed by the checkbox for each data alone. I would like to add by selecting a different TextBox. It's ip address in the TextBox.
in the textbox:
111.99.1.100
in the listview :
/xxx.asp?name=EMMA&Surname=ALIYEVA&SNumber=00121214512&RDate=2012.07.04
/xxx.asp?name=ANNA&Surname=MARIA&SNumber=00121334512&RDate=2012.07.03
etc.
i want - for example :
I chose the first record.
111.99.1.100/xxx.asp?name=EMMA&Surname=ALIYEVA&SNumber=00121214512&RDate=2012.07.04
#listview #checkbox #post #send c#
p.s. I'm sorry for my english sucks.
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You may have better luck if you posted this in the ASP. NET forum[^]. If you do so, please edit your post and mark it as [Moved] so you don't get flamed for crossposting.
/ravi
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I'm working, I'm in visual studio C# # Windows Forms application. This study is not web application.
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OK, then this is the correct forum. But I still don't understand your problem.
/ravi
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Do you want to send data to another computer with a given IP-Adress?
Well for the take a look at socket-programming:
Sockets in C#[^]
------------------------------
Author of Primary ROleplaying SysTem
How do I take my coffee? Black as midnight on a moonless night.
War doesn't determine who's right. War determines who's left.
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If I understand the question.
1. Learn how TCP and sockets work.
2. Write code to send a message via a socket.
3. Write code to receive a message via a socket.
4. Create a message that contains the data above. Note that the message contains it. It is not just the data.
5. Put all of the above together to solve your problem.
Note that steps 1-4 have NOTHING to do with GUI elements of any kind. So your code for 2-4 must not have any text boxes, nor list views nor check boxes.
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Suppose structured
public struct stNhanVien
{
public WhatType? Picture;
public string FullName;
public DateTime BirthDay;
}
Can save images to a structured text file (note: do not store the path of the image), to save the image of the structure of text files will have style? one example of this?
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