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  • Sql Server as logging, best connection practise

    - by ozz
    I'm using SqlServer as logging. Yes this is wrong decision, there are better dbs for this requirement. But I have no other option for now. Logging interval is 3 logs per second. So I've static Logger class and it has static Log method. Using "Open Connection" as static member is better for performance. But what is the best implemantation of it? This is not that I know. public static class OzzLogger { static SqlConnection Con; static OzzLogger() { Con=ne SqlConnection(....); Con.Open(); } public static void Log(....) { Con.ExecuteSql(......); } } UPDATE I asked because of my old information. People say "connection pooling performance is enough". If there is no objection I'm closing the issue :)

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  • jQuery focus on content of input / textarea - not working properly in IE8

    - by katebp
    I want the input fields on my site to select all the text when the user first clicks on them, but in IE8 the text is selected for a split second then reverts back to normal. Works fine in FF. My js code: $(document).ready(function () { //HTML DOM document is ready // Add this behavior to all text fields $("input[type='text'], textarea").live("focus", function(){ // Select field contents this.focus(); }); }); Any ideas? I've tried adding ".select()" after "this" and bizarrely enough it works, but throws loads of js errors in FF and IE. Thanks

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  • TcpListener problem - re-binding to same port with different local addresses

    - by Zvika
    I'm trying to do the following: listen on some port for loopback connections only, and then start listening on any IP address. Here is the code: TcpListener l1 = new TcpListener(new IPEndPoint(IPAddress.Loopback, 12345)); l1.Start(); Socket s = l1.AcceptSocket(); Console.ReadKey(); //s.Close(); l1.Stop(); TcpListener l2 = new TcpListener(new IPEndPoint(IPAddress.Any, 12345)); l2.Start(); l2.AcceptSocket(); Console.ReadKey(); The problem is that if a client connects while listening on the Loopback address (l1), then no other client can connect to the Loopback address when the second listener (l2) starts listening. why is that? Another thing I noticed is that if I close all clients that connected to l1 (the remarked line), then l2 does accept loopback connections. Any ideas?

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  • Large static arrays are slowing down class load, need a better/faster lookup method

    - by Visualize
    I have a class with a couple static arrays: an int[] with 17,720 elements a string[] with 17,720 elements I noticed when I first access this class it takes almost 2 seconds to initialize, which causes a pause in the GUI that's accessing it. Specifically, it's a lookup for Unicode character names. The first array is an index into the second array. static readonly int[] NAME_INDEX = { 0x0000, 0x0001, 0x0005, 0x002C, 0x003B, ... static readonly string[] NAMES = { "Exclamation Mark", "Digit Three", "Semicolon", "Question Mark", ... The following code is how the arrays are used (given a character code). [Note: This code isn't a performance problem] int nameIndex = Array.BinarySearch<int>(NAME_INDEX, code); if (nameIndex > 0) { return NAMES[nameIndex]; } I guess I'm looking at other options on how to structure the data so that 1) The class is quickly loaded, and 2) I can quickly get the "name" for a given character code. Should I not be storing all these thousands of elements in static arrays?

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  • How do I know if a boost thread is done ?

    - by jules
    I am using boost::thread to process messages in a queue. When a first message comes I start a message processing thread. When a second message comes I check if the message processing thread is done. if it is done I start a new one if it is not done I don nothing. How do I know if the thread is done ? I tried with joinable() but it is not working, as when the thread is done, it is still joinable. I also tried to interrupt the process at once, and add an interruption point at the end of my thread, but it did not work. Thanks

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  • How to make instance of mxml and pass parameters?

    - by toshe
    i want to create instance of mxml (in my case EventList) and pass parameters. My Event List is a list of panels so I want to pass parameters and generate dynamically n number of panels (n-parameter to pass). I have the main app where I have toggle button bar when I click on the first I want for example to generate 3 panels (n=3) on the second button 20 panels (n=20) etc. How can I do this? How can I pass n and what is the best way to show the list? I whant to generate the list when I click on the toggle button!

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  • DoWork of BackgroundWorker is called twice when RunWorkerAsync is called once?

    - by Power-Mosfet
    I have create a backgroundworker in an class it works, but if i call and wait until the end run, call it for the second time it will do the same process twice i thinks there is somthing wrong with bw.DoWork += private void button1_Click(object sender, EventArgs e) { nptest.test.start("null", "null"); } namespace nptest { class test { public static void start(string str, string strb) { if (bw.IsBusy != true) { bw.WorkerSupportsCancellation = true; bw.DoWork += (obj, e) => bw_DoWork(str, strb); bw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw_RunWorkerCompleted); bw.RunWorkerAsync(); } } private static BackgroundWorker bw = new BackgroundWorker(); private static void bw_DoWork(string str, string strb) { System.Windows.Forms.MessageBox.Show("initializing BackgroundWorker"); } private static void bw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) { if ((e.Cancelled == true)) { Console.WriteLine("Canceled"); } else if (!(e.Error == null)) { Console.WriteLine("Error: " + e.Error.Message); } bw.Dispose(); } } }

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  • css help , to create div

    - by 422
    Please see pic, this is what I want to do. I am really struggling to bloody do it lol. The master div, is 600px wide ( blue bg ) and need splitting into two areas, left for the image and right for the text etc. Ignore the vertical divider line The left hand div, is approx 200px wide, and need to specify a min-height of 100px, as the placeholder image which is centered to that div 50% 50% will change size, as I will be adding another div like this with larger image placeholder. The right part contains the header tag, description, button and second description. I have already constructed this and works fine in chrome and ff, but not in ie. So could you guys have a think, and give me some code that complies in all browsers. It is officially doing my head in now. Screenpic of it working in ff and chrome below:

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  • What's in-memory database technology that do realtime materialized view?

    - by KA100
    What I'm looking for is something like materialized views in front-end that shows my data in diffident ways without full recalculation. let's say I have stock watcher with many front-end views and dashborads some based on aggregation, order by or just filter with different criteria defined realtime by user. Now, I receive online record updates from some webservice and it's not like "data warehouse" every single record can be updated any time and it actually happens every second. Is there any technology can help me in such I create something like materialized view and it's update it without doing full recalculation every time data changed. Thank you.

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  • Push a variable into global scope?

    - by Spot
    We use instantiate and put system critical objects in $GLOBALS for easy access from anywhere (e.g. DB, Cache, User, etc.). We use $GLOBALS so much that it would (yes, really) drop the amount of code quite a bit if I could reference it like $G = &$GLOBALS for a shorthand call. The problem is that, per my experience and several hours of Googling, I have not found any construct in PHP which allows you to 'flag' a var as global, making $GLOBALS first class, and everything else second class. Am I missing something? Is this possible?

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  • How do I release an object allocated in a different AutoReleasePool ?

    - by ajcaruana
    Hi, I have a problem with the memory management in Objective-C. Say I have a method that allocates an object and stores the reference to this object as a member of the class. If I run through the same function a second time, I need to release this first object before creating a new one to replace it. Supposing that the first line of the function is: NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; This means that a different auto-release pool will be in place. The code to allocate the object is as follows: if (m_object != nil) [m_object release]; m_object = [[MyClass alloc] init]; [m_object retain]; The problem is that the program crashes when running the last line of the method: [pool release]; What am I doing wrong ? How can I fix this ? Regards Alan

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  • Monitoring file upload progress in Actionscript 3

    - by helloworlder
    I'm trying to track the progress of a file upload in AS3, and I'm getting strange behavior. When I select a file and upload it, the progress is instantaneously 100% even if the file is 10 or more megabytes, but it's not finished. The onComplete event is fired about 30 second to a few minutes later (depending on file size) when the file has really finished uploading. I've tested this locally and on the server, the behaviour is the same. Has anyone else experienced this? Very frustrating ... Otherwise, the file is uploading fine. The code is simple: myFileReference.addEventListener(ProgressEvent.PROGRESS, onUploadProgress); function onUploadProgress(e:ProgressEvent) { var pctDone:Number = (e.bytesLoaded / e.bytesTotal) * 100; trace(pctDone); }

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  • How do you remove the Bing Disambiguation Dialog via API call?

    - by Justin Dearing
    I am integrating bing maps into a web page. I am calling the GetDirections() method of my VEMap option. and setting the VERouteOptions.ShowDisambiguation property to true when I call VEMap.GetDirections(). So sometimes I get the following dialog: The problem is sometimes the user will enter a second set of directions into my form, and dialog remains. I've done the following to attempt to correct it: // In case the disambiguation dialog a.k.a "" is present from a previous direction search var disambiguationDialogElement = $('#myMap_veplacelistpanel')[0]; if (typeof (disambiguationDialogElement) == "object") { map.DeleteControl(disambiguationDialogElement); } It seems to work, but it feels like a suboptomial approach. Is there a better way to do it?

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  • How to find the Mode in Array C#?

    - by sarah
    I want to find the Mode in an Array. I know that I have to do nested loops to check each value and see how often the element in the array appears. Then I have to count the number of times the second element appears. The code below doesn't work, can anyone help me please. for (int i = 0; i < x.length; i ++) { x[i]++; int high = 0; for (int i = 0; i < x.length; i++) { if (x[i] > high) high = x[i]; } }

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  • Regex to replace a string in HTML but not within a link or heading

    - by Vladimir
    I am looking for a regex to replace a given string in a html page but only if the string is not a part of the tag itself or appearing as text inside a link or a heading. Examples: Looking for 'replace_me' <p>You can replace_me just fine</p> OK <a href='replace_me'>replace_me</a> no match <h3>replace_me</h3> no match <a href='/test/'><span>replace_me</span></a> no match <p style="background:url('replace_me')">replace_me<h1>replace_me</h1></p> first no match, second OK, third no match Thanks in advance!

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  • How to access the next element and check if it has a particular class

    - by NaN
    I need to call a function based on whether the second following td element has a certain class. Here is the HTML <tr id="939"> <td data-id="939">Test2</td> <td class="hold" data-id="939"></td> </tr> <tr id="938"> <td data-id="938">Test1</td> <td class="someotherclass" data-id="938"></td> </tr> Here is the JQuery function $('body').on('click', '#article td:first-child', function(e){ // I need to check the next td for the hold class if($(this).next().hasClass(".hold")){ // Call my function } }); How do I do this? I've tried using next and closest but that yields nothing.

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  • How to make last line of each table's part unfinished in latex longtable?

    - by diver_ru
    I have a table that automatically stretched over several pages by longtable package. \begin{longtable}{| l | l |} \hline A & B \\ \hline \endfirsthead \multicolumn{3}{l}{Table \thetable{} -- finishing} \\ \hline \endhead a1 & b1 \\ \hline a1 & b2 \\ hline ........ \end{longtable} Suppose that table broken (automatically) between first and second lines. Now i have this: ------- |A | B| ------- |a1|b1| ------- <page break> Table 1 -- finishing. ------- |a2|b2| ------- I want the following effect: ------- |A | B| ------- |a1|b1| <page break> Table 1 -- finishing. ------- |a2|b2| ------- I.e. last line of broken part should be unfinished.

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  • stars and slideshow input not working in IE browsers

    - by pradeep
    http://ratingscorner.com/product_rating.php?alias=Rashtreeya-Vidyalaya-College-of-Engineering-Mysore-Road-Bangalore&product=colleges I have a page like this .this works very well in all browsers, but not in IE. problem in IE is that : 1. If you go to "your ratings" tab in second section. the stars and input are not clickable only. 2. and the gap between tabs and tables are more in IE .. tried to check in firebug also. the element has not margin or padding at bottom. the slideshow also does not work in IE

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  • Could You Quickly Test a Web Page in Apples Safari 3 [Simple Pass:Fail]

    - by Jay
    I am not fortunate to have access to Apple Safari 3.0 [which has a WebKit version < 525]. Would someone kindly test a Web page for me, it will return your userAgent string and a simple pass:fail. In WebKit versions < 525.… [<= Apple Safari 3.0] it should fail and = 525.… [= Apple Safari 3.1] it should pass. I appreciate all your help, all you have to post is if the Web page, on the second line, says pass or fail, please. Kind regards! To test: http://80etc.com/test.html

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  • CSS navigation submenu and seperator

    - by Xenioz
    I have created a navigation bar that is centered with CSS which works. Each li item is separated with a border which is a background image. When hovering on the nav items, the separator disappears because the hover changes the background (I guess) but I wonder how I can fix this, padding or margin can't work because it will just shift the li element. Second problem is that the sub menu items aren't displaying correctly and I have no idea why... Demonstration: http://jsfiddle.net/Xenios/tfbhh/9/embedded/result/ The code: http://jsfiddle.net/Xenios/tfbhh/9/ I'm trying to get this to work for almost a week, and I'm quite tired of it, so I'm looking here for support.

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  • Display calculating result in the same page

    - by garcon1986
    Hello, I have a table in my php code. In the second column of the table, normally it displays "---", and after i click the submit button, it will display the calculating result in the same page. For example, <table> <tr><td>1</td><td>---</td></tr> <tr><td>2</td><td>---</td></tr> <tr><td>3</td><td>---</td></tr> </table> And in the same page, it should receive the variables $var1 = $_POST['variable1']; I'm not sure which way to use, ajax or javascript or just css? Do you have any ideas? Thanks

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  • SQL Server (TSQL) - Is it possible to EXEC statements in parallel?

    - by Investor5555
    SQL Server 2008 R2 Here is a simplified example: EXECUTE sp_executesql N'PRINT ''1st '' + convert(varchar, getdate(), 126) WAITFOR DELAY ''000:00:10''' EXECUTE sp_executesql N'PRINT ''2nd '' + convert(varchar, getdate(), 126)' The first statement will print the date and delay 10 seconds before proceeding. The second statement should print immediately. The way T-SQL works, the 2nd statement won't be evaluated until the first completes. If I copy and paste it to a new query window, it will execute immediately. The issue is that I have other, more complex things going on, with variables that need to be passed to both procedures. What I am trying to do is: Get a record Lock it for a period of time while it is locked, execute some other statements against this record and the table itself Perhaps there is a way to dynamically create a couple of jobs? Anyway, I am looking for a simple way to do this without having to manually PRINT statements and copy/paste to another session. Is there a way to EXEC without wait / in parallel?

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  • Glassfish module deploy fails with "In-place deployment" error message

    - by iamanapprentice
    It was my first time to use Java EE and I am having an error everytime I run my html file. This is the error I am seeing: In-place deployment at C:\Documents and Settings\scybermonde\My Documents\NetBeansProjects\Exercises\build\web deploy?path=C:\Documents and Settings\scybermonde\My Documents\NetBeansProjects\Exercises\build\web&name=Exercises&force=true failed on GlassFish Server 3 C:\Documents and Settings\scybermonde\My Documents\NetBeansProjects\Exercises\nbproject\build-impl.xml:683: The module has not been deployed. BUILD FAILED (total time: 1 second) What was wrong if I am receiving an error like this? I also tried to deployed it referring to what it said in the later part "The module has not been deployed" but still the same error appears... please help... thanks in advance :)

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  • onchange on dropdownlist

    - by Abu Hamzah
    my qeustion is continuation of what i have asked see the link. http://stackoverflow.com/questions/2640001/load-country-state-city i have expand to load my drop downs list from db and i just need a way to wire onchange method in my first dropdownlist and second, please see the code. appreciate any help. $(document).ready(function() { var options = { type: "POST", url: "SearchPage.aspx/LoadCountry", data: "{}", contentType: "application/json; charset=utf-8", dataType: "json", success: function(msg) { var returnedArray = msg.d; list = $("#country"); for (var i = 0; i { list.append("" + returnedArray[i].Name + ""); } error : function(msg) { debugger } } }; $.ajax(options); }); how would i do for STATE dropdownlist ?

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  • Can I safely bind to data on multi-threaded applications?

    - by Paul
    Hi everyone, I'm trying to solve a classic problem - I have a multi-threaded application which runs some processor-intensive calculations, with a GUI interface. Every time one of the threads has completed a task, I'd like to update a status on a table taskID | status I use DataGridView and BindingList in the following way: BindingList<Task> tasks; dataGridView.DataSource = tasks public class Task : INotifyPropertyChanged { ID{get;} Status{get;set;} } Can a background thread safely update a task's status? and changes will be seen in the correct order in the GUI? Second Question: When do I need to call to PropertyChanged? I tried running with and without the call, didn't seem to bother.. Third Question: I've seen on MSDN that dataGridView uses BindingSource as a mediator between DataGridView.DataSource and BindingList Is this really necessary?

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