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• How to make a reference to a normal java class from GWT server side

  - by mohammed-qumhieh

  hello I building my project using GWT plugin for eclipse Galileo, after i done from RPC between the server and client, i trying to make a reference from gwt server side to normal java class in non-gwt-project, but every time i make an object from the class (which in non-gwt-project) gives me ClassNotFoundException. i did the buildpath for the gwt project, but still gives me the same exception, is there a way to make that from server side (not from client side). i need help please, i spent a lot of time searching for solution but i did not found anything. i appreciate any suggestions...thanks

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• Voting UI for showing like/dislike community comments side-by-side

  - by Justin Grant

  We want to add a comments/reviews feature to our website's plugin gallery, so users can vote up/down a particular plugin and leave an optional short comment about what they liked or didn't like about it. I'm looking for inspiration, ideally a good implementation elsewhere on the web which isn't annoying to end users, isn't impossibly complex to develop, and which enables users to see both good and bad comments side-by-side, like this: Like: 57 votes Dislike: 8 votes --------------------------------- -------------------------------- "great plugin, saved me hours..." "hard to install" "works well on MacOS and Ubuntu" "Broken on Windows Vista with UAC enabled" "integrates well with version 3.2" More... More... Anyone know a site which does something like this?

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• Pure HTML + JavaScript client side templating

  - by Dev er dev

  I want to have achieve something similar to Java Tiles framework using only client side technologies (no server side includes). I would like to have one page, eg layout.html which will contain layout definition. Content placeholder in that page would be empty #content div tag. I would like to have different content injected on that page based on url. Something like layout.html?content=main or layout.html?content=edit will display page with content replaced with main.html or edit.html. The goal is to avoid duplicating code, even for layout, and to compose pages without server-side templating. What approach would you suggest? EDIT: I don't need a full templating library, just a way to compose a pages, similar for what tiles do.

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• Web UI for showing like/dislike community comments side-by-side

  - by Justin Grant

  We want to add a comments/reviews feature to our website's plugin gallery, so users can not only vote up or down a particular plugin, but also leave an optional short comment about what they liked or didn't like about it. I'm looking for inspiration, ideally a good implementation elsewhere on the web which isn't annoying to end users, isn't impossibly complex to develop, and which enables users to see both good and bad comments side-by-side, like this: Like: 57 votes Dislike: 8 votes --------------------------------- -------------------------------- "great plugin, saved me hours..." "hard to install" "works well on MacOS and Ubuntu" "Broken on Windows Vista with UAC enabled" "integrates well with version 3.2" More... More... Anyone know a site which does something like this?

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• When exactly does a method have side effects?

  - by Kim

  As I always understood it, any change to the programs state (or anything to do with IO) is a side effect. It does not matter, whether the change occurs in a global variable or in a private field of the object the method is called on. It follows that all methods which do not return anything either do nothing at all or have a side effect. My confusion comes from one of our university's instructors (who is still a student and thus not omniscient yet;) ) telling me setters don't have side effects.

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• Generating Dynamic web pages without server side scripting

  - by Microkernel

  Hi guys, I am trying to control a media device which has lot of multimedia content that it can play using another device(remote control device) like an ipad connected to the LAN. (UPnP) I want the media device to be able to send the content listing to the remote device so that it will be rendered as a webpage on the remote controller. And actions on the webpages needs to be sent to the the device as commands to execute (like play, pause, next etc). The media device is an embedded device, hence can't have any server side scripting, all has to be done on the client side. I want the page rendered to be HTML5. So, is it possible to generate dynamic HTML5 pages using just client side scripting? Thanks a lot. I am an embedded systems developer hence clueless about the web designing stuff.

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• Performance improvement of client server system

  - by Tanuj

  I have a legacy client server system where the server maintains a record of some data stored in a sqlite database. The data is related to monitoring access patterns of files stored on the server. The client application is basically a remote viewer of the data. When the client is launched, it connects to the server and gets the data from the server to display in a grid view. The data gets updated in real time on the server and the view in the client automatically gets refreshed. There are two problems with the current implementation: When the database gets too big, it takes a lot of time to load the client. What are the best ways to deal with this. One option is to maintain a cache at the client side. How to best implement a cache ? How can the server maintain a diff so that it only sends the diff during the refresh cycle. There can be multiple clients and each client needs to display the latest data available on the server. The server is a windows service daemon. Both the client and the server are implemented in C#

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• iphone/ipad with 2 side by side tables

  - by jesse001

  I want to create a view with 2 tables side by side, where selecting the row on 1 table effects the content of the other and vice versa (not parent child). My problem is how to send the request. I started with a utility app using core data, and added 2 table view controllers. I added these to the main view nib and moved the tables to the view. One table controls a list from Core Data, then on selecting a row I want it to move to the other table which is based on a mutable array. On didselectrow I want to tell the other table to update, however I can only find samples that are parent/child so involves initializing. Does anyone know of a way to do this for an active view? Thanks heaps for your help.

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• client side spring

  - by Gholi

  I wanna sth like Spring framework to use in client side. Actually I am going to abstract ui from data sources that may be added to system while it is up. An XML will be injected to system and ui will be generated automatically. Client side use would be able to search on new data source while objects are created in client side. Thanks

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• Synergy, OSX client, Windows 7 server - No mouse on client

  - by Majenko

  I have the following Synergy setup: +------------++------------++------------++------------+ | Mac || Win 7 || Ubuntu 1 || Ubuntu 2 | |c ||s ||c ||c | +------------++------------++------------++------------+ Mac: OS/X Tiger 10.4.11 (G3) Win 7: Windows 7 Ultimate x64 Ubuntu 1 & Ubuntu 2: Desktop 10.10 Now, everything works nicely between the Win7 server and the two Ubuntu machines. What doesn't work is the Mac. I am running the very latest Synergy (1.4.2, downloaded last night). As far as the Mac is concerned everything should be working fine: Synergy 1.4.2 Client on Darwin 8.11.0 Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC Power Macintosh Unable to connect to pasteboard. Clipboard sharing disabled. 2011-03-22 09:32:56.725 synergyc[406] Can't register screen saver connection 'com.apple.ScreenSaverDaemon' started client connecting to '192.168.0.202': 192.168.0.202:24800 connected to server entering screen leaving screen entering screen leaving screen But it's just not interacting with the display at all (mouse doesn't move, keyboard does nothing). I have tried running ktrace on synergyc and examining the dump, and the only clue I found was that it was trying to interact with the AccessibilityAPI which was disabled at first. Enabling Accessibility has had no effect whatsoever (it has only stopped the failure to open /var/db/.AccessibilityAPIEnabled in the ktrace dump) Anyone managed to get this to work in OS/X Tiger yet? I used to run the server on OS/X and have the windows / unix machines as clients, but as my Windows is now a laptop I'd like that to be the server.

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• I am unable to run a client/server program in php

  - by sibi

  This is the program I am trying to run: $host = "127.0.0.1"; $port = 25003; // don't timeout! set_time_limit(0); // create socket $socket = socket_create(AF_INET, SOCK_STREAM, 0) or die("Could not create socket\n"); // bind socket to port $result = socket_bind($socket, $host, $port) or die("Could not bind to socket\n"); // start listening for connections $result = socket_listen($socket, 3) or die("Could not set up socket listener\n"); // accept incoming connections // spawn another socket to handle communication $spawn = socket_accept($socket) or die("Could not accept incoming connection\n"); // read client input $input = socket_read($spawn, 1024) or die("Could not read input\n"); // clean up input string $input = trim($input); echo "Client Message : ".$input; // reverse client input and send back $output = strrev($input) . "\n"; socket_write($spawn, $output, strlen ($output)) or die("Could not write output\n"); // close sockets socket_close($spawn); socket_close($socket); I enabled the PHP_socket option in WAMP but still I keep getting errors like unable to bind. Can someone please help me out?

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• How to use WPA2 client mode in the Linux-based Cisco WAP4410N access point

  - by joechip

  I have a Cisco WAP4410N access point that I want to use as a client to connect to a WPA2 wireless network (for WLAN service monitoring purposes). Supposedly this access point supports a "Wireless Client/Repeater" mode that allows to do this. The Repeater function is optional (I have that box unchecked so that nobody can connect to this access point wirelessly). I have verified through SSH that the access point gets configured as a client and not as a Master. But it never associates to the SSID I ask it to. This is what iwconfig shows: ath04 IEEE 802.11ng ESSID:"myownssid" Mode:Managed Channel:0 Access Point: Not-Associated Bit Rate:0 kb/s Tx-Power:14 dBm Sensitivity=1/3 Retry:off RTS thr:off Fragment thr:off Encryption key:off Power Management:off Link Quality=0/94 Signal level=161/162 Noise level=161/161 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 Although I've never done this from the command line, I suppose I could use wpa_supplicant or wpa_client to associate it, but I don't know how to do that without editing configuration files and the filesystem is readonly. Besides, I would have to run those commands manually after every reboot. I'd like to know how to do this the Cisco way, if possible. If not, any trick to make this work would be useful. Edit: This is with the latest firmware, 2.0.4.2. And I found that not all of the filesystem is readonly, since /var and /tmp are mounted with type ramfs.

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• How to use Cisco AnyConnect VPN Client?

  - by ktm5124

  I wrote a related question earlier, which is still unresolved. This question is much more specific. So I installed Cisco AnyConnect VPN Client on Snow Leopard. I connect to my work VPN. Once connected, I can't ping my work machine. I don't see any computers on the network. If the client were not running, I wouldn't believe myself to be connected to the VPN. Is there something that I am doing wrong? Do I have to route my network traffic through the tunnel manually? (ifconfig route comes to mind) Is the POST request that I am about to submit going to go through the tunnel created by my VPN? I guess the main question is: why do I feel so in the dark? Cisco says I am connected to my VPN, but for all I know it is invisible. N.B. I do have the up-to-date Cisco VPN Client: version 2.3.2016. I installed it about a week ago.

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• tmux: Suddenly, cannot horizontally split

  - by A__A__0

  As root, using a reasonably default .profile and .shrc and an empty tmux.conf, I am unable to split the window horizontally. There are a number of cases to consider so I'll list them clearly. Using the keybinding + empty configuration: nothing happens Using the keybinding + my configuration: a bell is generated, nothing else; occasionally, the split will appear and disappear immediately (maybe it always does this, but I'm connecting over ssh so it may not make it through) Using tmux split-window -h with any config: tmux immediately exits I've posted here in order the server and client verbose logs generated by tmux -v during the third case: server started, pid 9523 socket path /tmp/tmux-0/default new client 7 got 100 from client 7 got 101 from client 7 got 102 from client 7 got 103 from client 7 got 104 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 105 from client 7 got 106 from client 7 got 200 from client 7 cmdq 0x801c6e080: new-session (client 7) new term: xterm xterm override: XT xterm override: Ms ]52;%p1%s;%p2%s xterm override: Cs ]12;%p1%s xterm override: Cr ]112 xterm override: Ss [%p1%d q xterm override: Se [2 q new key Oo: 0x1021 (KP/) new key Oj: 0x1022 (KP*) new key Om: 0x1023 (KP-) new key Ow: 0x1024 (KP7) new key Ox: 0x1025 (KP8) new key Oy: 0x1026 (KP9) new key Ok: 0x1027 (KP+) new key Ot: 0x1028 (KP4) new key Ou: 0x1029 (KP5) new key Ov: 0x102a (KP6) new key Oq: 0x102b (KP1) new key Or: 0x102c (KP2) new key Os: 0x102d (KP3) new key OM: 0x102e (KPEnter) new key Op: 0x102f (KP0) new key On: 0x1030 (KP.) new key OA: 0x101d (Up) new key OB: 0x101e (Down) new key OC: 0x1020 (Right) new key OD: 0x101f (Left) new key [A: 0x101d (Up) new key [B: 0x101e (Down) new key [C: 0x1020 (Right) new key [D: 0x101f (Left) new key OH: 0x1018 (Home) new key OF: 0x1019 (End) new key [H: 0x1018 (Home) new key [F: 0x1019 (End) new key Oa: 0x501d (C-Up) new key Ob: 0x501e (C-Down) new key Oc: 0x5020 (C-Right) new key Od: 0x501f (C-Left) new key [a: 0x901d (S-Up) new key [b: 0x901e (S-Down) new key [c: 0x9020 (S-Right) new key [d: 0x901f (S-Left) new key [11^: 0x5002 (C-F1) new key [12^: 0x5003 (C-F2) new key [13^: 0x5004 (C-F3) new key [14^: 0x5005 (C-F4) new key [15^: 0x5006 (C-F5) new key [17^: 0x5007 (C-F6) new key [18^: 0x5008 (C-F7) new key [19^: 0x5009 (C-F8) new key [20^: 0x500a (C-F9) new key [21^: 0x500b (C-F10) new key [23^: 0x500c (C-F11) new key [24^: 0x500d (C-F12) new key [25^: 0x500e (C-F13) new key [26^: 0x500f (C-F14) new key [28^: 0x5010 (C-F15) new key [29^: 0x5011 (C-F16) new key [31^: 0x5012 (C-F17) new key [32^: 0x5013 (C-F18) new key [33^: 0x5014 (C-F19) new key [34^: 0x5015 (C-F20) new key [2^: 0x5016 (C-IC) new key [3^: 0x5017 (C-DC) new key [7^: 0x5018 (C-Home) new key [8^: 0x5019 (C-End) new key [6^: 0x501a (C-NPage) new key [5^: 0x501b (C-PPage) new key [11$: 0x9002 (S-F1) new key [12$: 0x9003 (S-F2) new key [13$: 0x9004 (S-F3) new key [14$: 0x9005 (S-F4) new key [15$: 0x9006 (S-F5) new key [17$: 0x9007 (S-F6) new key [18$: 0x9008 (S-F7) new key [19$: 0x9009 (S-F8) new key [20$: 0x900a (S-F9) new key [21$: 0x900b (S-F10) new key [23$: 0x900c (S-F11) new key [24$: 0x900d (S-F12) new key [25$: 0x900e (S-F13) new key [26$: 0x900f (S-F14) new key [28$: 0x9010 (S-F15) new key [29$: 0x9011 (S-F16) new key [31$: 0x9012 (S-F17) new key [32$: 0x9013 (S-F18) new key [33$: 0x9014 (S-F19) new key [34$: 0x9015 (S-F20) new key [2$: 0x9016 (S-IC) new key [3$: 0x9017 (S-DC) new key [7$: 0x9018 (S-Home) new key [8$: 0x9019 (S-End) new key [6$: 0x901a (S-NPage) new key [5$: 0x901b (S-PPage) new key [11@: 0xd002 (C-S-F1) new key [12@: 0xd003 (C-S-F2) new key [13@: 0xd004 (C-S-F3) new key [14@: 0xd005 (C-S-F4) new key [15@: 0xd006 (C-S-F5) new key [17@: 0xd007 (C-S-F6) new key [18@: 0xd008 (C-S-F7) new key [19@: 0xd009 (C-S-F8) new key [20@: 0xd00a (C-S-F9) new key [21@: 0xd00b (C-S-F10) new key [23@: 0xd00c (C-S-F11) new key [24@: 0xd00d (C-S-F12) new key [25@: 0xd00e (C-S-F13) new key [26@: 0xd00f (C-S-F14) new key [28@: 0xd010 (C-S-F15) new key [29@: 0xd011 (C-S-F16) new key [31@: 0xd012 (C-S-F17) new key [32@: 0xd013 (C-S-F18) new key [33@: 0xd014 (C-S-F19) new key [34@: 0xd015 (C-S-F20) new key [2@: 0xd016 (C-S-IC) new key [3@: 0xd017 (C-S-DC) new key [7@: 0xd018 (C-S-Home) new key [8@: 0xd019 (C-S-End) new key [6@: 0xd01a (C-S-NPage) new key [5@: 0xd01b (C-S-PPage) new key [I: 0x1031 ((null)) new key [O: 0x1032 ((null)) new key OP: 0x1002 (F1) new key OQ: 0x1003 (F2) new key OR: 0x1004 (F3) new key OS: 0x1005 (F4) new key [15~: 0x1006 (F5) new key [17~: 0x1007 (F6) new key [18~: 0x1008 (F7) new key [19~: 0x1009 (F8) new key [20~: 0x100a (F9) new key [21~: 0x100b (F10) new key [23~: 0x100c (F11) new key [24~: 0x100d (F12) new key [2~: 0x1016 (IC) new key [3~: 0x1017 (DC) replacing key OH: 0x1018 (Home) replacing key OF: 0x1019 (End) new key [6~: 0x101a (NPage) new key [5~: 0x101b (PPage) new key [Z: 0x101c (BTab) replacing key OA: 0x101d (Up) replacing key OB: 0x101e (Down) replacing key OD: 0x101f (Left) replacing key OC: 0x1020 (Right) spawn: /bin/sh -- session 0 created writing 207 to client 7 got 208 from client 7 input_parse: '#' ground input_parse: ' ' ground keys are 7 ([?1;2c) received service class 1 complete key [?1;2c 0xfff keys are 1 (t) complete key t 0x74 input_parse: 't' ground keys are 1 (m) complete key m 0x6d input_parse: 'm' ground keys are 1 (u) complete key u 0x75 input_parse: 'u' ground keys are 1 (x) complete key x 0x78 input_parse: 'x' ground keys are 1 ( ) complete key 0x20 input_parse: ' ' ground keys are 1 (s) complete key s 0x73 input_parse: 's' ground keys are 1 (p) complete key p 0x70 input_parse: 'p' ground keys are 1 (l) complete key l 0x6c input_parse: 'l' ground keys are 1 (i) complete key i 0x69 input_parse: 'i' ground keys are 1 (t) complete key t 0x74 input_parse: 't' ground keys are 1 (-) complete key - 0x2d input_parse: '-' ground keys are 1 (d) complete key d 0x64 input_parse: 'd' ground keys are 1 () complete key 0x7f input_parse: '' ground input_c0_dispatch: ' input_parse: '' ground input_parse: '[' esc_enter input_parse: 'K' csi_enter input_csi_dispatch: 'K' "" "" keys are 1 (w) complete key w 0x77 input_parse: 'w' ground keys are 1 (i) complete key i 0x69 input_parse: 'i' ground keys are 1 (n) complete key n 0x6e input_parse: 'n' ground keys are 1 (d) complete key d 0x64 input_parse: 'd' ground keys are 1 (o) complete key o 0x6f input_parse: 'o' ground keys are 1 (w) complete key w 0x77 input_parse: 'w' ground keys are 1 ( ) complete key 0x20 input_parse: ' ' ground keys are 1 (-) complete key - 0x2d input_parse: '-' ground keys are 1 (h) complete key h 0x68 input_parse: 'h' ground keys are 1 ( ) complete key 0xd input_parse: ' ' ground input_c0_dispatch: ' input_parse: ' ' ground input_c0_dispatch: ' new client 13 got 100 from client 13 got 101 from client 13 got 102 from client 13 got 103 from client 13 got 104 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 105 from client 13 got 106 from client 13 got 200 from client 13 cmdq 0x801c6e160: split-window -h (client 13) spawn: /bin/sh -- writing 203 to client 13 input_parse: '#' ground input_parse: ' ' ground input_parse: '#' ground input_parse: ' ' ground lost client 13 session 0 destroyed writing 203 to client 7 got 205 from client 7 writing 204 to client 7 lost client 7 got 207 from server got 203 from server got 204 from server There are some other peculiarities: With a newly created user (from which I overwrote root's .profile and .shrc, tmux works perfectly. Occasionally (twice out of the 50 or so times I've tested it), the splitting will work fine once in a session. (This happened for example when I ran ktrace on tmux, which I can also post) To explain the 'suddenly' part of the title: when I started my newly updated mysql56-server, tmux immediately exited and lost the session. Recently I changed architectures, from FreeBSD 10.0 i386 to amd64, and I am still working through shared library incompatibilities. I suspect that this could be involved, but I can't imagine how an incompatibility of this sort could result in such a specific, isolated failure.

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• Where do we put "asking the world" code when we separate computation from side effects?

  - by Alexey

  According to Command-Query Separation principle, as well as Thinking in Data and DDD with Clojure presentations one should separate side effects (modifying the world) from computations and decisions, so that it would be easier to understand and test both parts. This leaves an unanswered question: where relatively to the boundary should we put "asking the world"? On the one hand, requesting data from external systems (like database, extental services' APIs etc) is not referentially transparent and thus should not sit together with pure computational and decision making code. On the other hand, it's problematic, or maybe impossible to tease them apart from computational part and pass it as an argument as because we may not know in advance which data we may need to request.

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• How do client-server cooperation based games like Diablo 3 work?

  - by edgar

  Diablo 3 cooperates with Blizzard servers even during single player games. In fact, Blizzard has had problems with the games "melting their servers." I would like to ask: How do the client and the server communicate? What details does the client leave to the server, and vice versa? What details are redundant - both the client and the server know - and how often do they disagree? The previous paragraph contains the important questions, but I have a few more that I must explain my motivation towards. I am interested in the programming of botting. Ethical botting - I don't plan on actually abusing the automation to run 24/7. I just find it to be a great programming challenge to glean information from a game, and then make decisions from that information. I am stuck in the starting gate. The unofficial questions from this post would be: How can I make a bot (language, tools, libraries)? Can I get information through the communication between client and server, rather than the brute force pixel detection easily used in more static games? There probably is a trust issue, and to that all I can say is that I promise not to abuse the answers. But please feel free to answer any of the questions you feel comfortable with. Thank you!

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• asp.net mvc2 microsoftMvcJqueryValidation - Include my custom client-side function

  - by user314963

  Hi there I'm using microsoftMvcJqueryValidation and I want to call my own client-side validation function for a particular field with the system so that it fires with the other auto generated client-side validation. Is there a certain place I can call my function? Thanks~!

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• How to clear browser's cache from server side?

  - by Dunith Dhanushka

  I have to create a web application that deals with user's sensitive information. I need to immediately clear the browser's cache after user logs out since cached data would be vulnerable. Client's browser should be enforced to clear the Cache from server side. Also all cache policies must be exposed to the client from the server side. Is there any solution to this problem?

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• Server-side web browser for PHP?

  - by Lee

  If you wanted to re-create the DOM server-side and manipulate it in PHP, how would you choose to go about it? I'm looking for a fast, multi-user complete server-side web browser that can interface with PHP and run complete Javascript. Like Jaxer but something I can use with PHP... an extension would be fine, or even an Apache mod. Ideas?

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• creating ports and initiating communication between client and server

  - by dave

  what i need is a server that listens to 5060 port , when the client sends data to that port the server should open up another port ( any port after 1250 i believe ) and forward the clients data to that port keeping 5060 idle so it can perform the same function for the next client so basically i need the server to a) open up multiple ports one for each client b) get the voice data from the client and be able to send voice data to that client i m looking into the hardware specs and other such details of the scenario so i dont have time to make such a program myself if theres a code that i can run directly ( both server and client side ) on visual studio .net 2010 that will perform these tasks then that would be extremely helpful thanks alot in advance

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• How to implement dual communication between server and client via http

  - by Alex Sebastiano

  I have a AJAX client which must receive messages from server. Some messages from server not like request-response type. For example, imaging game in which players can enter. Server must send to client info about player entering. But how can server send message to client via http without request from client? Only decision that i can invent: client send request to server (getNewPlayerEnter request) with big timeout, server checks state of player set, if in set new players are, then server send info to client, if not server 'sleeps' on some time, and after 'sleeping' server checks players set again. I think my desicion a little stupid(maybe not little). How implement it right? p.s. sorry for my english

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• Client-side Twitter API method using XMLHttpRequest?

  - by user359239

  Does (or did) Twitter ever have a method in their API that allowed client-side HTTP requests without producing any cross-domain issues? I have a site that used the following url: http://search.twitter.com/search.json?q=from%3adaleyjem&rpp=3&page=1&callback=? It once worked, but now it doesn't. Is there something else I should be using, or do I have to make a request to my own server-side code?

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• Creating instance of a service-side DataContract class on client-side in WCF

  - by hgulyan

  Hi, I have my custom class Customer with its properties. I added DataContract mark above the class and DataMember to properties and it was working fine, but I'm calling a service class's function, passing customer instance as parameter and some of my properties get 0 values. While debugging I can see my properties values and after it gets to the function, some properties' values are 0. Why it can be so? There's no code between this two actions. DataContract mark workes fine, everything's ok. Any suggestions on this issue? I tried to change ByRef to ByVal, but it doesn't change anything. Why it would pass other values right and some of integer types just 0? Maybe the answer is simple, but I can't figure it out. Thank You. <DataContract()> Public Class Customer Private Type_of_clientField As Integer = -1 <DataMember(Order:=1)> Public Property type_of_client() As Integer Get Return Type_of_clientField End Get Set(ByVal value As Integer) Type_of_clientField = value End Set End Property End Class <ServiceContract(SessionMode:=SessionMode.Allowed)> <DataContractFormat()> Public Interface CustomerService <OperationContract()> Function addCustomer(ByRef customer As Customer) As Long End Interface type_of_client properties value is 6 before I call addCustomer function. After it enters that function the value is 0. UPDATE: The issue is in instance creating. When I create an instance of a class on client side, that is stored on service side, some of my properties pass 0 or nothing, but when I call a function of a service class, that returns a new instance of that class, it works fine. What's is the difference? Could that be serialization issue?

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• Web Grid, Client side Binding VS. Server side HTML generation

  - by Ron Harlev

  I'm working on replacing an existing web grid in an ASP.NET web application, with a new implementation. The existing grid is powerful, but not flexible enough. It also brings with it all kind of frameworks we don't like to have on our web pages. While looking into existing options I noticed I can break the available solutions into two main approaches. The older approach is represented best by the ASP.NET GridView. This is a classic ASP.NET control that generates the needed HTML on the server, based on a given set of data. The newer approach is depending on client side rendering, mainly with jQuery. A good example would be jqGrid. Only the data is sent to the client (Usually with JSON or XML) In the GridView case, if I want an AJAX behavior, I would have to implement it with something like an update panel. Is there a definitive choice I should make? Is there a good chance of achieving the same snappy behavior I get with jqGrid (even with many records), with server side rendered controls? Is there some hybrid implementation incorporating both approaches?

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• Rendering blocks side-by-side with FOP

  - by Rolf

  I need to generate a PDF from XML data using Apache FOP. The problem is that FOP doesn't support fo:float, and I really need to have items (boxes of rendered data) side-by-side in the PDF. More precisely, I need them in a 4x4 grid on each page, like so: In HTML, I would simply render these as left-floated divs with appropriate widths and heights. My data looks something like this: <item id="1"> <a>foo</a> <b>bar</b> <c>baz</c> </item> <item id="2">...</item> ... <item id="n">...</item> I considered using a two-column region-body, but then the order of items would be 1, 3, 2, 4 (reading from left to right) since they would be rendered tb-lr instead of lr-tb, and I need them to be in the correct order (id in above xml). I suppose I could try using a table, but I'm not quite sure how to group the items into table rows. So, some kind of workaround for the lack of fo:float would be greatly appreciated.

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