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  • Max value amongst 4 columns in a row.

    - by KandadaBoggu
    I have test_scores table with following fields: Table schema: id (number) score1 (number) score2 (number) score3 (number) score4 (number) Sample data: id score1 score2 score3 score4 1 10 05 30 50 2 05 15 10 00 3 25 10 05 15 Expected result set: id col_name col_value 1 score4 50 2 score2 15 3 score1 25 What is a good SQL for this?(I am using MySQL.)

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  • How to join table to itself and select max values in SQL

    - by Jakub Konop
    I have a contracts table: contractId date price partId 1 20120121 10 1 2 20110130 9 1 3 20130101 15 2 4 20110101 20 2 The contract with greatest date being the active contract (don't blame me, I blame infor for creating xpps) I need to create query to see only active contracts (one contract per part, the contract with highest date). So the result of the query should be like this: contractId date price partId 1 20120121 10 1 3 20130101 15 2 I am out of ideas here, I tried self joining the table, I tried aggregation functions, but I can't figure it out. If anyone would have any idea, please share them with me..

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  • Max size of localStorage values?

    - by user269386
    Hi, since the localStorage (currently) only supports strings as values and in order to that the objects have to be stringified (stored as JSON-string), before they can be stored, i wondered if there is a defined limitation regarding the length of the values. Does anyone know if there is a definition which applies to all browsers, respectively does anyone know the limitations for Chrome5? Thanks, in advance, for your help

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  • Max number of nested \input in LaTeX/Beamer

    - by P. Henaff
    When using the beamer documentclass, it looks like the third level of nested input is ignored: \documentclass{beamer} \input{body} body.tex: \begin{document} \input{file1} \input{file2} \end{document} file2.tex: \input{file21} The content of file21.tex is ignored with documentclass beamer, but correctly inserted if I use a documentclass article, for example. Has anyone seen something like this?

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  • Setting a min/max zoom for Bing maps in Silverlight

    - by Boone
    I am using the Silverlight sdk for Bing Maps. I have my map, I have my PushPins all mapped out. Now I want to disable the user from zooming out so far they see the whole world and keep it constricted to the just the US. It would be nice if there was something simple like Map.MaxZoom but there is not. Any help?

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  • Transparently surround a component with a link in Wicket

    - by Toni Menzel
    I want to be able to add links on certain items in an ListView. If an items is surrounded by the link or not is up to the code, so its not in the normal page markup. Say i have a markup like this: <div class="column" wicket:id="columnRepeater"> <span wicket:id="column"></span> </div> So essentially, while filling the repeater with a ListView i am able to find a custom renderer for the column component. (not my playingfield). What i want is to add a Link/Ajax Link around the column component. I learned using wicket:border lets you surround additional stuff. Now, the border markup looks like this: <wicket:border> <a wicket:id="link"><wicket:body/></a> </wicket:border> Now, i am a bit puzzled what the Border implementation looks like. Anyone there who can suggest a working java part? I have a couple of "work in progress" solutions but none works. Most questions have to do with usage of component ids. Is the border id = column ? Whats the id of the inner (border body) id then?

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  • JQuery DataTables link item

    - by rogcg
    I'm trying to link the items from a specific column, but each one will be linked for a different id from the json string. Unfortunately I can't find a way to do this using the API (I know there is a lot of ways to do that without using the API ), but I'm looking for a way to link a item from a column (each one with a link for a specific id). So here is my code, I use getJSON to get the JSON from the server, and I load the data from this JSON to the table like this: $.getJSON("/method/from/server/", function(data) { var total = 0; $("#table_body").empty(); var oTable = $('#mytable').dataTable( { "sPaginationType" : "full_numbers", "aaSorting": [[ 0, "asc" ]] }); oTable.fnClearTable(); $.each(data, function(i, item) { oTable.fnAddData( [ item.contact_name, item.contact_email ] ); }); }); What I want to do, is for each row, link the contact_name to its id, which is also in the JSON, and can be accessed inside this $.each loop by using item.contact_id. Is there a way to do this using DataTables API, if yes, could you explain me and provide a good resource that will help me with this? Thanks.

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  • Select count() max() Date HELP!!! mysql oracle

    - by DAVID
    Hi guys i have a table with shifts history along with emp ids im using this code to retrieve a list of employees and their total shifts by specifying the range to count from: SELECT ope_id, count(ope_id) FROM operator_shift WHERE ope_shift_date >=to_date( '01-MAR-10','dd-mon-yy') and ope_shift_date <= to_date('31-MAR-10','dd-mon-yy') GROUP BY OPE_ID which gives OPE_ID COUNT(OPE_ID) 1 14 2 7 3 6 4 6 5 2 6 5 7 2 8 1 9 2 10 4 10 rows selected. NOW how do i choose the employee with the highest no of shifts under the specified range date, please this is really important

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  • HELP with sql query involving two tables and a max date

    - by wes
    hello all....firstly any help is greatly appreciated! i have been searching for a solution to my problem for a while and haven't found exactly what i am looking for. i have two tables notifications and mailmessages. notifications has fields( notifytime, notifynumber, and accountnumber). mailmessages has fields(id, messagesubject, messagenumber, accountnumber) my goal is to create a single sql query to retrieve distinct rows from mailmessages WHERE the accountnumber is a specific number AND the notifynumber=messagenumber AND ONLY the most recent notifytime from the notifications table where the accountnumbers match in both tables. i am using sqlexpress2008 as a backend to an asp.net page....this query should return distinct messages for an account with only the most recent date from the notifications table..please help! i'll buy you a beer!!!

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  • Jquery to max number from a set of divs

    - by Matias
    Guys, Given the following HTML <div class"myclass">10</div> <div class"myclass">25</div> <div class"myclass">50</div> <div class"myclass">20</div> I want Jquery to return the maximum value found on divs with class:"myclass". (This is 50) I thought of using .find.text() will be a good starting point but cant figure out exactly how, Help is greatly appreciatted, Thanks

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  • Max. # of printers allowed for google cloud print

    - by user1858673
    I intend to write an online shopping program using PHP. When the buyer completes an order I want to print the receipt to his/her printer using Google Cloud Print. For that I will need the buyer to shared his/her printer with my Google account. My questions are: 1. Is there an upper bound for the number of printers a Google account is allowed to print to? 2. Is there a daily upper bound for the number of print jobs a Google account is allow? Thanks for reading and thanks for the answers in advance.

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  • WINDOWS 7: Make the contents of two folders appear in one

    - by big_smile
    In Windows 7, I have three folders: "Images", "assets" and "all". I want the contents of "Images " and "assets" to appear in "all" automatically without copying those files into that folder (e.g. I don't want to duplicate the files). I also only want the contents to be copied over and not the folders themslves (The reason for this is that if the folders are copied over, they will become sub-directories. I am using a printing hot folder that access "all" but it can't see any subdirectories in "all"). When Images and Assets are updated (e.g. with files being added or deleted), "all" should automatically update as well. How can I do this? This is what I have tried: Libraries: This is a feature built into Windows. It works exactly as I want. However, the print hot folder cannot recognise the library as a folder. Sym Link Extension: I can use this to make the "images" and "assets" folders appear as a sub directories of "all". However, I want the contents of "images"/"assets" to appear in the "all" folder (I don't want the directories to appear as sub directories, because as stated, the print hot folder cannot access sub directories).

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  • Increasing link speed on OpenVPN (bandwidth)

    - by Mike
    I have bought a tunnel service by using OpenVPN. For a year I've had 10 Mbps max upload/download speed but now I've bought an additional 20 Mbps making the available total bandwidth 30 Mbps for me. On their homepage there are some controls available for me, for example to restart the tunnel. I've done that. It also says that the speed has indeed been upgraded to 30 Mbps on their page. I also got an email that said they have upgraded the speed. However after I reboot my machine, and OpenVPN has started up and is running as usual, when I look at the Windows Task Manager (opens when pressing CTRL+SHIFT+ESC) in the "Networking" tab I still have a link speed of only 10 Mbps. Two adapters are listed: Local Area Connection 4 (10 Mbps) and Local Area Connection 5 (100 Mbps). LAC5 is my "real" adapter, I have a 100 Mbps Internet connection if I don't use a tunnel. LAC3 is the virtual adapter used by OpenVPN. The problem is that it is still showing 10 Mbps even though I have upgraded to 30 Mbps. How can I fix this?

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  • Session memory – who’s this guy named Max and what’s he doing with my memory?

    - by extended_events
    SQL Server MVP Jonathan Kehayias (blog) emailed me a question last week when he noticed that the total memory used by the buffers for an event session was larger than the value he specified for the MAX_MEMORY option in the CREATE EVENT SESSION DDL. The answer here seems like an excellent subject for me to kick-off my new “401 – Internals” tag that identifies posts where I pull back the curtains a bit and let you peek into what’s going on inside the extended events engine. In a previous post (Option Trading: Getting the most out of the event session options) I explained that we use a set of buffers to store the event data before  we write the event data to asynchronous targets. The MAX_MEMORY along with the MEMORY_PARTITION_MODE defines how big each buffer will be. Theoretically, that means that I can predict the size of each buffer using the following formula: max memory / # of buffers = buffer size If it was that simple I wouldn’t be writing this post. I’ll take “boundary” for 64K Alex For a number of reasons that are beyond the scope of this blog, we create event buffers in 64K chunks. The result of this is that the buffer size indicated by the formula above is rounded up to the next 64K boundary and that is the size used to create the buffers. If you think visually, this means that the graph of your max_memory option compared to the actual buffer size that results will look like a set of stairs rather than a smooth line. You can see this behavior by looking at the output of dm_xe_sessions, specifically the fields related to the buffer sizes, over a range of different memory inputs: Note: This test was run on a 2 core machine using per_cpu partitioning which results in 5 buffers. (Seem my previous post referenced above for the math behind buffer count.) input_memory_kb total_regular_buffers regular_buffer_size total_buffer_size 637 5 130867 654335 638 5 130867 654335 639 5 130867 654335 640 5 196403 982015 641 5 196403 982015 642 5 196403 982015 This is just a segment of the results that shows one of the “jumps” between the buffer boundary at 639 KB and 640 KB. You can verify the size boundary by doing the math on the regular_buffer_size field, which is returned in bytes: 196403 – 130867 = 65536 bytes 65536 / 1024 = 64 KB The relationship between the input for max_memory and when the regular_buffer_size is going to jump from one 64K boundary to the next is going to change based on the number of buffers being created. The number of buffers is dependent on the partition mode you choose. If you choose any partition mode other than NONE, the number of buffers will depend on your hardware configuration. (Again, see the earlier post referenced above.) With the default partition mode of none, you always get three buffers, regardless of machine configuration, so I generated a “range table” for max_memory settings between 1 KB and 4096 KB as an example. start_memory_range_kb end_memory_range_kb total_regular_buffers regular_buffer_size total_buffer_size 1 191 NULL NULL NULL 192 383 3 130867 392601 384 575 3 196403 589209 576 767 3 261939 785817 768 959 3 327475 982425 960 1151 3 393011 1179033 1152 1343 3 458547 1375641 1344 1535 3 524083 1572249 1536 1727 3 589619 1768857 1728 1919 3 655155 1965465 1920 2111 3 720691 2162073 2112 2303 3 786227 2358681 2304 2495 3 851763 2555289 2496 2687 3 917299 2751897 2688 2879 3 982835 2948505 2880 3071 3 1048371 3145113 3072 3263 3 1113907 3341721 3264 3455 3 1179443 3538329 3456 3647 3 1244979 3734937 3648 3839 3 1310515 3931545 3840 4031 3 1376051 4128153 4032 4096 3 1441587 4324761 As you can see, there are 21 “steps” within this range and max_memory values below 192 KB fall below the 64K per buffer limit so they generate an error when you attempt to specify them. Max approximates True as memory approaches 64K The upshot of this is that the max_memory option does not imply a contract for the maximum memory that will be used for the session buffers (Those of you who read Take it to the Max (and beyond) know that max_memory is really only referring to the event session buffer memory.) but is more of an estimate of total buffer size to the nearest higher multiple of 64K times the number of buffers you have. The maximum delta between your initial max_memory setting and the true total buffer size occurs right after you break through a 64K boundary, for example if you set max_memory = 576 KB (see the green line in the table), your actual buffer size will be closer to 767 KB in a non-partitioned event session. You get “stepped up” for every 191 KB block of initial max_memory which isn’t likely to cause a problem for most machines. Things get more interesting when you consider a partitioned event session on a computer that has a large number of logical CPUs or NUMA nodes. Since each buffer gets “stepped up” when you break a boundary, the delta can get much larger because it’s multiplied by the number of buffers. For example, a machine with 64 logical CPUs will have 160 buffers using per_cpu partitioning or if you have 8 NUMA nodes configured on that machine you would have 24 buffers when using per_node. If you’ve just broken through a 64K boundary and get “stepped up” to the next buffer size you’ll end up with total buffer size approximately 10240 KB and 1536 KB respectively (64K * # of buffers) larger than max_memory value you might think you’re getting. Using per_cpu partitioning on large machine has the most impact because of the large number of buffers created. If the amount of memory being used by your system within these ranges is important to you then this is something worth paying attention to and considering when you configure your event sessions. The DMV dm_xe_sessions is the tool to use to identify the exact buffer size for your sessions. In addition to the regular buffers (read: event session buffers) you’ll also see the details for large buffers if you have configured MAX_EVENT_SIZE. The “buffer steps” for any given hardware configuration should be static within each partition mode so if you want to have a handy reference available when you configure your event sessions you can use the following code to generate a range table similar to the one above that is applicable for your specific machine and chosen partition mode. DECLARE @buf_size_output table (input_memory_kb bigint, total_regular_buffers bigint, regular_buffer_size bigint, total_buffer_size bigint) DECLARE @buf_size int, @part_mode varchar(8) SET @buf_size = 1 -- Set to the begining of your max_memory range (KB) SET @part_mode = 'per_cpu' -- Set to the partition mode for the table you want to generate WHILE @buf_size <= 4096 -- Set to the end of your max_memory range (KB) BEGIN     BEGIN TRY         IF EXISTS (SELECT * from sys.server_event_sessions WHERE name = 'buffer_size_test')             DROP EVENT SESSION buffer_size_test ON SERVER         DECLARE @session nvarchar(max)         SET @session = 'create event session buffer_size_test on server                         add event sql_statement_completed                         add target ring_buffer                         with (max_memory = ' + CAST(@buf_size as nvarchar(4)) + ' KB, memory_partition_mode = ' + @part_mode + ')'         EXEC sp_executesql @session         SET @session = 'alter event session buffer_size_test on server                         state = start'         EXEC sp_executesql @session         INSERT @buf_size_output (input_memory_kb, total_regular_buffers, regular_buffer_size, total_buffer_size)             SELECT @buf_size, total_regular_buffers, regular_buffer_size, total_buffer_size FROM sys.dm_xe_sessions WHERE name = 'buffer_size_test'     END TRY     BEGIN CATCH         INSERT @buf_size_output (input_memory_kb)             SELECT @buf_size     END CATCH     SET @buf_size = @buf_size + 1 END DROP EVENT SESSION buffer_size_test ON SERVER SELECT MIN(input_memory_kb) start_memory_range_kb, MAX(input_memory_kb) end_memory_range_kb, total_regular_buffers, regular_buffer_size, total_buffer_size from @buf_size_output group by total_regular_buffers, regular_buffer_size, total_buffer_size Thanks to Jonathan for an interesting question and a chance to explore some of the details of Extended Event internals. - Mike

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  • auto add route parameter to url

    - by user276640
    i have 2 urls on one page: http://host/home/list and http://host/home/list/1. if i click on second url then first url renders with param 1, so url1 equals ulr2 (url1 = http://host/home/list/1 and url2=http://host/home/list/1) i use such code <%= Html.ActionLink("link", "DesignerFiles", "Home", null, null)%> url1 <%= Html.ActionLink("link", "DesignerFiles", "Home", new { id = 1} , null)%> url2 what the problem?

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  • ASP.NET. Css file in master page.

    - by w1z
    Hi All, In my application I have next problem. I created master page and some content pages, some of which are located in the nested folders. In the master page I added the link to .css file <link href="default.css" rel="stylesheet" type="text/css" /> But pages are located in the nested folders can't use this .css file. How can I fix this? I want to have one .css file for all pages (: Thanks!

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  • Search Links on a page

    - by Ravi Vyas
    Hi everyone. I want to search my link on other pages by passing url address. After passing the url it should return some boolean value which will define the existence of my link. Preferred language ASP.net/C# If it is possible, Please help me.

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  • git, egit, submodules, and symlinks -- how should shared sub-projects be handled in eclipse?

    - by Autophil
    Question: what's the best way to handle sub-projects in eclipse when using git for SCM? Here's the situation. I have a few git projects with a directory structure layed out more or less like this: simpleproj app www admin demo lib model orm view model user blah ... storeproj app www about mobile fbapp lib model orm view model user message cart product merchant Each directory in "lib" contains a separate project, either created in-house or forked, all of which use git for source control. So I figured I should make them submodules of my projects, right? Well, we've been moving toward eclipse + egit, because some of our windows guys not used to a CLI need something they can use without being scared of screwing things up. Anyway, the problem is, egit doesn't support submodules. So, my solution has been a rather crude one involving symlinks... lets say my directory structure on my dev box is generally layed out like this: ~/projects/ bigproj .git app lib model (- ~/lib/model/src/) orm (- ~/lib/orm/src/) neatproj .git app lib view (- ~/lib/view/src/) oldproj .git app lib orm (- ~/lib/orm/src/) ~/lib/ model .git src README.md orm .git src COPYING view .git src ...the symlinks link to a subdirectory of the directory containing the git repo, so eclipse doesn't get confused, and everything sort of works. On my machine, I can update the libs from anywhere and all projects will be updated (needing to be committed again of course). Each project stores a separate copy of the contents of the symlinked directories within "lib" -- but only when staged from within eclipse. After committing from eclipse and moving back to the CLI, git sees that a bunch of files have been removed and a few symlinks have been created. Of course this is acceptable also, probably more so than keeping a separate history of the libs for each project... but eclipse and CLI git obviously need to be on the same page so tons of files aren't vanishing and reappearing. So this brings me to my question. I'd like to know how to either: get eclipse+egit to see the symlinks as symlinks if git will somehow handle them properly*, or get the CLI git to treat them as non-symlinks. Or, if there's a better way to do this, I'm all ears. Hope this all made sense! :D Note: tried to tag this as git-submodules, but was not allowed :( * should I make them relative or absolute? Either way it's a mess. Also will symlinks will work on windows? i know there's something similar but you need a 3rd party tool to manage them AFAIK, i doubt these would translate well.

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  • git, egit, submodules, and symlinks -- how should shared sub-projects be handled in eclipse?

    - by Autophil
    Here's the situation. I have a few git projects with a directory structure layed out more or less like this: simpleproj app www admin demo lib model orm view model user blah ... storeproj app www about mobile fbapp lib model orm view model user message cart product merchant Each directory in "lib" contains a separate project, either created in-house or forked, all of which use git for source control. So I figured I should make them submodules of my projects, right? Well, we've been moving toward eclipse + egit, because some of our windows guys not used to a CLI need something they can use without being scared of screwing things up. Anyway, the problem is, egit doesn't support submodules. So, my solution has been a rather crude one involving symlinks... lets say my directory structure on my dev box is generally layed out like this: ~/projects/ bigproj .git app lib model (- ~/lib/model/src/) orm (- ~/lib/orm/src/) neatproj .git app lib view (- ~/lib/view/src/) oldproj .git app lib orm (- ~/lib/orm/src/) ~/lib/ model .git src README.md orm .git src COPYING view .git src ...the symlinks link inside of directory with the git repo, so eclipse doesn't get confused, and everything sort of works. On my machine, I can update the libs from anywhere and all projects will be updated (needing to be committed again of course). Each project stores a separate copy of the contents of the symlinked directories within "lib" -- but only when staged from within eclipse. After committing from eclipse and moving back to the CLI, git sees that a bunch of files have been removed and a few symlinks have been created. Of course this is acceptable also, probably more so than keeping a separate history of the libs for each project... but eclipse and CLI git obviously need to be on the same page so tons of files aren't vanishing and reappearing. So this brings me to my question. I'd like to know how to either: get eclipse+egit to see the symlinks as symlinks if git will somehow handle them properly*, or get the CLI git to treat them as non-symlinks. Or, if there's a better way to do this, I'm all ears. Hope this all made sense! :D Note: tried to tag this as git-submodules, but was not allowed :( * should I make them relative or absolute? Either way it's a mess. Also will symlinks will work on windows? i know there's something similar but you need a 3rd party tool to manage them AFAIK, i doubt these would translate well.

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  • Dlink search is hijacking my browser

    - by James
    For months now "DLink search" has been hijacking my search engines. I use google chrome, and I have organized my search engines in the handy dandy "manage search engines" tool about a TRILLION times. It never even says D-link is hacking my search engines. It does not show up! I have read many posts on this forum and others saying that to fix this problem from internet explorer: Setup, internet options, yadayada, magical fairies, and you are solved, but my browser is google chrome! How am I supposed to do this from there! I do not know how to re-setup my Dlink router, which is the cause of the problem! HOW? In those posts with the magical fairies fixing it, HUNDREDS responded saying, "yep, those fairies definitely fixed it right. :)" These people were so satisfied. IT WORKED FOR THEM, WHY NOT ME. I look at it and go ":(" because it does not help me. There are no options for anything to do with this in GOOGLE chrome. PLEASE EXPLAIN and HELP. I see no "SETUP" option, no "Internet Options" button, no anything. BTW the exact posts are these: "Uncheck Advanced DNS in the router internet setup. This will take care of it. I had this problem with my DLink router before." "I had this issue with my DIR-655 and unchecking the Advanced DNS setting in Setup - Internet - Manual Internet Connection Setup fixed it." "If this is just internet explorer, you can go to Tools Internet Options or Internet Options in Control Panel. From here, go to the advanced tab and click the Reset button." "I would set the router's DNS to a site like OpenDNS, and I would ensure the machines are set to get their DNS settings via DHCP or set the machine's DNS setting to OpenDNS. If the router's DNS looks like it was messed with, some bad software know the default passwords for routers and could have changed it. If you don't already I would make sure the password to the router is not default or easy to guess. I've had spyware change a machine's DNS, but the fact it is happening on all machines makes me wonder if it is the router." "Something got into your router and changed the dns server most likely, do a hard reset of the router and then change the password to something strong. Also check for a firmware update for the router and apply it as soon as possible."

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  • iPhone SDK : UIWebView detect link on textfeild !

    - by Momeks
    Hi i create simple web browser for my app and i don't know why when user click a link the address bar doesn't change as link address here is my code : -(IBAction)webAddress:(id)sender { [site loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:[webAdress text]]]]; [webAdress resignFirstResponder]; } - (BOOL)webView:(UIWebView*)webView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType { //CAPTURE USER LINK-CLICK. if (navigationType == UIWebViewNavigationTypeLinkClicked) { NSURL *URL = [request URL]; if ([[URL scheme] isEqualToString:@"http"]) { [webAdress setText:[URL absoluteString]]; [self webAddress:nil]; } return NO; } return YES; } what's my problem ?

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