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  • IE6 extra padding on bottom

    - by Gian Basagre
    I have a div tag styled through CSS. I set the padding to 10px (padding:10px), it works just as I wanted in Firefox and IE7, but in IE6 it adds additional padding at the bottom (about 2-3px I think). Anyone has idea about what's happening here? [update] I just noticed this, the div tag I'm talking about has a background-image. When I removed the background-image, the extra padding on the bottom disappears. Any ideas? [another update, code sample] Here's the CSS applied to my div tag: .user-info{ margin-top: 20px; margin-right: 20px; padding: 10px; background-image: url("../img/user_panel_bg.png"); float:right; border: 1px #AAAAAA solid; font-size:12px; }

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  • MongoDB: embedding performance question

    - by Alex
    I just started learning MongoDB, and I really like the idea of embedding collections instead of referencing them. MongoDB's documentation recommends to use embedding if performance is needed. I just thought about a simple forum model. Let's say, every board category has several boards, every board has several topics, and every topic has several messages. All of these collections are embedded. After some time the size of the board category will be huge. Way more than the 2MB limit. Does this mean that there's a flaw in this design?

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  • Effecient data structure design

    - by Sway
    Hi there, I need to match a series of user inputed words against a large dictionary of words (to ensure the entered value exists). So if the user entered: "orange" it should match an entry "orange' in the dictionary. Now the catch is that the user can also enter a wildcard or series of wildcard characters like say "or__ge" which would also match "orange" The key requirements are: * this should be as fast as possible. * use the smallest amount of memory to achieve it. If the size of the word list was small I could use a string containing all the words and use regular expressions. however given that the word list could contain potentially hundreds of thousands of enteries I'm assuming this wouldn't work. So is some sort of 'tree' be the way to go for this...? Any thoughts or suggestions on this would be totally appreciated! Thanks in advance, Matt

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  • android java.lang.OutOfMemoryError

    - by xiangdream
    hi, all, when i download large data from website, i got this error information: I/global (20094): Default buffer size used in BufferedInputStream constructor. It would be better to be explicit if an 8k buffer is required. D/dalvikvm(20094): GC freed 6153 objects / 3650840 bytes in 335ms I/dalvikvm-heap(20094): Forcing collection of SoftReferences for 3599051-byte al location D/dalvikvm(20094): GC freed 320 objects / 11400 bytes in 144ms E/dalvikvm-heap(20094): Out of memory on a 3599051-byte allocation. I/dalvikvm(20094): "Thread-9" prio=5 tid=17 RUNNABLE I/dalvikvm(20094): | group="main" sCount=0 dsCount=0 s=0 obj=0x439b9480 I/dalvikvm(20094): | sysTid=25762 nice=0 sched=0/0 handle=4065496 anyone can help me?

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  • What's the best way to access Neo4j from Django?

    - by abdel
    it seems that i found something that let me confused; i've found two Neo4j to download to python, the first one is: http://pypi.python.org/pypi/neo4j-embedded and the second one is: https://svn.neo4j.org/components/neo4j.py/trunk/ what's the difference between the two? the first one seems to be big (size), so does this mean that if i use it i'll not need the neo4j community release (milestone)? when i've installed the first one, and tried to test a django example, it seems that the directory named "model" https://svn.neo4j.org/components/neo4j.py/trunk/src/main/python/neo4j/model/ is missing? so what's the difference, and who will be better to use with Django? and what about that one? http://pypi.python.org/pypi/neo4django/

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  • Weblogic Error - Method not supported : Statement.cancel

    - by manetic
    I am running an application on Weblogic 9.2 MP3, currently having problem with connection pool. ERROR - UserBean retrieving user record. weblogic.jdbc.extensions.PoolLimitSQLException: weblogic.common.resourcepool.ResourceLimitException: No resources currently available in pool MyApp Data Source to allocate to applications, please increase the size of the pool and retry.. I also kept getting below error message, saying "Method not supported : Statement.cancel()" which I think it is the cause to the error above. <Error> <JDBC> <BEA-001131> <Received an exception when closing a cached statement for the pool "MyApp Data Source": java.sql.SQLException: Method not supported : Statement.cancel()..> I went through the app source code, this method didn't seem to be used by the app at all. Just though it might be something to do with weblogic itself. Anyone have any idea to fix this error?

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  • Heavy use of templates for mobile platforms

    - by Chris P. Bacon
    I've been flicking through the book Modern C++ Design by Andrei Alexandrescu and it seems interesting stuff. However it makes very extensive use of templates and I would like to find out if this should be avoided if using C++ for mobile platform development (Brew MP, WebOS, iOS etc.) due to size considerations. In Symbian OS C++ the standard use of templates is discouraged, the Symbian OS itself uses them but using an idiom known as thin templates where the underlying implementation is done in a C style using void* pointers with a thin template layered on top of this to achieve type safety. The reason they use this idiom as opposed to regular use of templates is specifically to avoid code bloating. So what are opinions (or facts) on the use of templates when developing applications for mobile platforms.

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  • Drive space hungry NoSQL's databases

    - by forum_inquisitor
    I've tested NoSQL databases like CouchDB, MongoDB and Cassandra and observed tendence to absorbing very large amount of drive space relative to inserted key-value pairs. When comparing CouchDB and MySQL schemaless databases CouchDB is consuming much more drive space than MySQL. I know about that key-value DBs by default are versioning and have long uuid and need key optimalisation - the comparison was between about 15 mln rows in MySQL and 1-5 mln documents listed NoSQL DB's. My question is : Is there any NoSQL with good compaction / compression of data? So that I can have NoSQL database with a size closer to 5GB than 50GB?

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  • Determining whether a file is a duplicate

    - by Todd R
    Is there a reliable way to determine whether or not two files are the same? For example, two files with the same size and type may or may not be the same binarilly (yeah, I know it's not really a word). I assume that comparing one or two checksums of the files will help, but I wonder: How reliable are checksums at determining whether two files are different; what are the chances of two different files having the same checksum? Would reliability increase by applying additional checksum comparisons? Which checksum algorithm(s) would be the most efficient and/or reliable? Any ideas, suggestions or thoughts are appreciated! P.S. The code for this is being written in Java running on a nix system, but generic or platform agnostic input is most helpful.

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  • can't explain NullPointerException

    - by John Pope
    In the following code, i have a method to get a Vector of persons with the same zodiac sign. persoane is a Vector. I keep getting a NullPointerException at the if condition (persoane is definetly not null). I am unable to see why. Any help would be greatly appreciated public Vector<Persoana> cautaDupaZodie(String zodie) { Vector<Persoana> rezultat= new Vector<Persoana>(); for(int i=0; i<persoane.size(); i++) { if(persoane.get(i).getData().getZodie().equals(zodie)) //the exception occurs here { rezultat.add(persoane.get(i)); } } return rezultat; }

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  • POST data disapearing on large file upload

    - by DfKimera
    I'm having issues with a file uploading utility in my PHP application. When sending large files (9MB+) over the form, I get a very odd behaviour: the POST data I've included in the form dissapears, including the file information. I've already increased all PHP limits I could (time limit, max input time, post max size, memory limit and upload max filesize) and I still can't get the proper behaviour. I've tried replacing the regular HTTP forms with a Flash-based solution (SWFUpload, www.swfupload.org), still the same behaviour. I've tried multiple files of similar sizes and its definitely not a particular file issue. I've debugged the POST vars sent using Firebug, and the correct variables are still there in the header, together with the file. What could be going on here?

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  • What are the possible causes of JasperException

    - by CitadelCSCadet
    I have a JSP that takes an Arraylist from the session object and removes the items from it. It seemed to be working fine and then out of nowhere when I navigate to that page, the page is blank. I checked the Tomcat log files and in catalina.out I am receiving a JasperException an it is showing it as being on a line with the following for(int i; i < agentItems.size(); i++) agentItems is the name of the ArrayList I am using. I have been debugging it and can't seem to figure out what the problem might be. I have read that a JasperException is sometiems thrown as a JSP's NullPointerException. Is this true or am I just completely overlooking the problem? I have the web application running on a local machine and a intermediate server for development in which both of them have had no trouble. Why could it be that only on this server it is giving me problems?

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  • What is the fastest way to copy content of DVD to hard disc using Linux

    - by Ritesh
    I have gone through some of the links Which talks about fastest way of copying files in windows using FILE_FLAG_NO_BUFFERING and FILE_FLAG_OVERLAPPED . It also talks about how request made for read and write opeartions with BUFFER SIZE as 256KB and 128KB are faster than 1Mb .The link for that is :- Explanation for tiny reads (overlapped, buffered) outperforming large contiguous reads? I am also loking for a Similar method in linux Which allows me to copy the content of my DVD to Hard Disc in a fast Way . So I wanted to know Is there some file operation flags in Linux which would provide me the best result or Which way of Copy in Linux is the best ? My codes are all in c++.

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  • Client validation of INPUT of type FILE without postback using jQuery

    - by Fixer
    I want to check on the client side that a file has been selected before the form can be submitted. <script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script> @using (Html.BeginForm("Upload", "Files", FormMethod.Post, new { enctype = "multipart/form-data" })) { <input id="File" name="File" type="file" size="80" /> <input type="submit" name="name" value="Upload" /> } Currently this form is doing postbacks for validation. What is going wrong?

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  • PHP Form checkbox question

    - by Sef
    Hello, I have a form that takes the following inputs: Name: IBM Surface(in m^2): 9 Floor: (Checkbox1) Phone: (Checkbox2) Network: (Checkbox3) Button to send to a next php page. All those values above are represented in a table when i press the submit button. The first two (name and surname) are properly displayed in the table. The problem is with the checkboxes. If i select the first checkbox the value in the table should be presented with 1. If its not selected the value in the table should be empty. echo "<td>$Name</td>"; // works properly echo "<td>$Surface</td>"; // works properly echo "<td>....no idea for the checkboxes</td>; Some part of my php code with the variables: <?php if (!empty($_POST)) { $standnaam = $_POST["name"]; $oppervlakte = $_POST["surface"]; $verdieping = $_POST["floor"]; $telefoon = $_POST["telefoon"]; $netwerk = $_POST["netwerk"]; if (is_numeric($surface)) { $_SESSION["name"]=$name; $_SESSION["surface"]=$surface; header("Location:ExpoOverzicht.php"); } else { echo "<h1>Wrong input, Pleasee fill in again</h1>"; } if(!empty($floor) && ($phone) && ($network)) { $_SESSION["floor"]=$floor; $_SESSION["phone"]=$phone; $_SESSION["network"]=$network; header("Location:ExpoOverzicht.php"); } } ?> Second page with table: <?php $name= $_SESSION["name"]; $surface= $_SESSION["surface"]; $floor= $_SESSION["floor"]; $phone= $_SESSION["phone"]; $network= $_SESSION["network"]; echo "<table class=\"tableExpo\">"; echo "<th>name</th>"; echo "<th>surface</th>"; echo "<th>floor</th>"; echo "<th>phone</th>"; echo "<th>network</th>"; echo "<th>total price</th>"; for($i=0; $i <= $_SESSION["name"]; $i++) { echo "<tr>"; echo "<td>$name</td>"; // gives right output echo "<td>$surface</td>"; // gives right output echo "<td>...</td>"; //wrong output (ment for checkbox 1) echo "<td>...</td>"; //wrong output (ment for checkbox 2) echo "<td>...</td>"; //wrong output (ment for checkbox 3) echo "<td>....</td>"; echo "</tr>;"; } echo "</table>"; <form action="<?php echo $_SERVER["PHP_SELF"]; ?>" method="post" id="form1"> <h1>Vul de gegevens in</h1> <table> <tr> <td>Name:</td> <td><input type="text" name="name" size="18"/></td> </tr> <tr> <td>Surface(in m^2):</td> <td><input type="text" name="surface" size="6"/></td> </tr> <tr> <td>Floor:</td> <td><input type="checkbox" name="floor" value="floor"/></td> </tr> <tr> <td>Phone:</td> <td><input type="checkbox" name="phone" value="phone"/></td> </tr> <tr> <td>Network:</td> <td><input type="checkbox" name="network" value="network"/></td> </tr> <tr> <td><input type="submit" name="verzenden" value="Verzenden"/></td> </tr> </table> There might be a few spelling mistakes since i had to translate it. Best regards.

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  • Distributing a function over a single dimension of an array in MATLAB?

    - by Alex Feinman
    I often find myself wanting to collapse an n-dimensional matrix across one dimension, and can't figure out if there is a concise incantation I can use to do this. For example, when parsing an image, I often want to do something like this. (Note! Illustrative example only. I know about rgb2gray for this specific case.) img = imread('whatever.jpg'); s = size(img); for i=1:s(1) for j=1:s(2) bw_img = mean(img(i,j,:)); end end I would love to express this as something like: bw = on(color, 3, @mean); or bw(:,:,1) = mean(color); Is there a short way to do this?

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  • Array basics - Populating with loop

    - by madlan
    Hi, I'm looping through a zip file trying to add the file name of each file within. Is this the correct method? Dim ZipNameArray(?) Using zip As ZipFile = ZipFile.Read(ZipToUnpack) For Each file In zip ZipNameArray(?) = file .FileName Next End Using I do not know the array size until I start looping through the zip (To work out the number of files within). How do I increment the Array? file is not a number? (It's a ZipEntry)

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  • STL member variable initalization issue with windows API

    - by Django
    I am creating a windows app that uses a vector of stings as a member variable. For some reason, I can compile but when it tries to get at any of the vectors members is crashes. the error is 0xC0000005: Access violation reading location 0xcdcdcdd9. in the member function of the vector class. this is the size() function where it breaks. size_type capacity() const { // return current length of allocated storage return (this->_Myend - this->_Myfirst); } I am using visual studios 2010. thank you Django

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  • Build a decision tree for classification of large amount data,using python?

    - by kaushik
    Hi,i am working for speech synthesis.In this i have a large number of pronunciation for each phone i.e alphabet and need to classify them according to few feature such as segment size(int) and alphabet itself(string) into a smaller set suitable for that particular context. For this purpose,i have decided to use decision tree for classification.the data to be parsed is in the S expression format.eg:((question)(LEFTNODE)(RIGHTNODE)). i hav idea for building decision tree for normal buit in type such as list..looking for suggestion for implementation for S expression.. kindly help.. Thanks in advance.. Note:this question may look similar to my prev post,srry if cant giv multiple post.already edited it many times so though of wirting new question instead of editing again

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  • javascript switch using intervals

    - by Fernando SBS
    Can I use intervals in a switch statement? Like switch (parseInt(troops[i])) { case <10: editbox.style.fontSize = "13px"; break; case <100: editbox.style.fontSize = "12px"; break; case <1000: editbox.style.fontSize = "8px"; editbox.size = 3; //editbox.style.width = "18px"; break; default: editbox.style.fontSize = "10px"; } ???

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  • Restoring using SyncBack without profiles

    - by Thomas Matthews
    I backed up my internal hard drive (C:) using SyncBack onto an external (USB) hard drive with maximum compression. I then performed a clean install of Windows Vista onto the computer. I forgot to copy the SyncBack logs before the clean install. And now when ever I try to restore a directory, the RAR/ZIP files are copied to the system hard drive instead of extracting their contents to the hard drive. Also, SyncBack is not traversing the folders during the Restore process. How can I tell SyncBack to expand the compressed files? I am running the freeware version of SyncBack. I have to create new log files (unless SyncBack put them somewhere on the external drive). My alternative is to write a program that traverses the folders on the external drive and extracts files from the RAR/ZIP files. I am using Windows Vista, Service Pack 2, and the data size prior to backup was about 200 GB. (The backup process took over 72 hours due to "hiccups").

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  • Plotting Points in Java with Interaction

    - by mellort
    I have a large number of data points which are two dimensional coordinates with non-integer values (floats). I am looking for a Java library that can help me plot these points, allowing for custom point size, color, and labels. Further, I would like the user to be able to interact with the points with panning and zooming, and I want to be able to capture KeyEvents from the user. Processing looks great for what I want, but I don't want to do everything from scratch. Is there a better solution? Thanks in advance.

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  • Firefox doesn't show silverlight controls

    - by lmenaria
    I have a silverlight application in which I am using the windowless property to show text . Silverlight Plugin Size is 1000*2000, I Have a button (siverlight control) on the Top. I am showing some html text using DIV real time. Its working fine. My Silverlight Plugin & DIV both style property is= "position:absolute'. This application is working fine in IE, but When I run this application in Firefox Button doesn't dsiplayed. Please let me know whats a issue with Firefox ? Thanks in advance, Laxmilal

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  • Potential problems porting to different architectures

    - by Brendan Long
    I'm writing a Linux program that currently compiles and works fine on x86 and x86_64, and now I'm wondering if there's anything special I'll need to do to make it work on other architectures. What I've heard is that for cross platform code I should: Don't assume anything about the size of a pointer, int or size_t Don't make assumptions about byte order (I don't do any bit shifting -- I assume gcc will optimize my power of two multiplication/division for me) Don't use assembly blocks (obvious) Make sure your libraries work (I'm using SQLite, libcurl and Boost, which all seem pretty cross-platform) Is there anything else I need to worry about? I'm not currently targeting any other architectures, but I expect to support ARM at some point, and I figure I might as well make it work on any architecture if I can. Also, regarding my second point about byte order, do I need to do anything special with text input? I read files with getline(), so it seems like that should be done automatically as well.

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