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• Entity Framework - Self Tracking Objects - how to reset client side?

  - by David

  I am using wcf with self tracking entity framework objects. On the client side i have bound an entity to an edit form (which has multiple textboxes and comboboxes). After the user hits Save, the entity is sent through wcf to the server wcf service which will attempt to save the entity. If there is a failure (say a network failure), I need to reset the current entity back to original values. How best can I do this client side? (I recognize with Self Tracking objects there is a property OriginalValues however that collection seems to have count=0) so not sure how to get the original values? Thanks-

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• Android dictionary application

  - by mawia

  Hi, I wanted to develop an application on top of a dictionary i.e. an application that uses dictionary as a part of it.Is their any dictionary application available in the market for this purpose?Application which come under GPL is preferable.Also those which uses local database instead of using network connection is preferable. If not,is there any dictionary database available in the market on the top of which a dictionary application can be developed which can then be used for said purpose? Hope I am clear. Thanks in advance.

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• spoof mac address

  - by Cold-Blooded

  // macaddress.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include <windows.h> #include <iostream> using namespace std; void readregistry(); void spoofmac(); void main(int argc, char* argv[]) { readregistry(); spoofmac(); } void spoofmac() { ////////////////////// ////////Write to Registry char buffer[60]; unsigned long size = sizeof(buffer); HKEY software; LPCTSTR location; char adapternum[10]=""; char numbers[11]="0123456789"; char editlocation[]="System\\CurrentControlSet\\Control\\Class\\{4D36E972-E325-11CE-BFC1-08002bE10318}\\0000"; char macaddress[60]; cout << "\n//////////////////////////////////////////////////////////////////\nPlease Enter Number of Network Adapter to Spoof or type 'E' to Exit.\nE.g. 18\n\nNumber: "; cin >> adapternum; if (adapternum[0]=='E') { exit(0); } if (strlen(adapternum)==2) { editlocation[strlen(editlocation)-2]=adapternum[0]; editlocation[strlen(editlocation)-1]=adapternum[1]; } if (strlen(adapternum)==1) { editlocation[strlen(editlocation)-1]=adapternum[0]; } if (strlen(adapternum)!=1 && strlen(adapternum)!=2) { cout << "Invaild Network Adapter Chosen\n\n"; exit(0); } cout << "Please Enter the Desired Spoofed Mac Address Without Dashes\nE.g. 00123F0F6D7F\n\nNew Mac: "; cin >> macaddress; location = editlocation; //error line strcpy(buffer,macaddress); size=sizeof(buffer); RegCreateKey(HKEY_LOCAL_MACHINE,location,&software); //RegSetValueEx(software,"NetworkAddress",NULL,REG_SZ,(LPBYTE)buffer,size); RegCloseKey(software); cout << "\nMac Address Successfully Spoofed.\n\nWritten by Lyth0s\n\n"; } void readregistry () { //////////////////////////////////// // Read From Registry char driver[60]=""; char mac[60]=""; char numbers[11]="0123456789"; char editlocation[]="System\\CurrentControlSet\\Control\\Class\\{4D36E972-E325-11CE-BFC1-08002bE10318}\\0000"; unsigned long driversize = sizeof(driver); unsigned long macsize = sizeof(mac); DWORD type; HKEY software; LPCTSTR location; int tenscount=0; int onescount=0; for (int x =0;x<=19; x+=1) { strcpy(driver,""); driversize=sizeof(driver); strcpy(mac,""); macsize=sizeof(mac); if (editlocation[strlen(editlocation)-1]=='9') { tenscount+=1; onescount=0; editlocation[strlen(editlocation)-2]=numbers[tenscount]; } editlocation[strlen(editlocation)-1]=numbers[onescount]; location=editlocation; //error line // cout << location << "\n"; // cout << "Checking 00" << location[strlen(location)-2] << location[strlen(location)-1] << "\n\n"; RegCreateKey(HKEY_LOCAL_MACHINE,location,&software); RegQueryValueEx(software,"DriverDesc",NULL,&type,(LPBYTE)driver,&driversize); //RegCloseKey(software); //RegCreateKey(HKEY_LOCAL_MACHINE,location,&software); RegQueryValueEx(software,"NetworkAddress",NULL,&type,(LPBYTE)mac,&macsize); RegCloseKey(software); cout << x << ": " << driver << "| Mac: " << mac << "\n"; onescount+=1; } } this program gives error as follows error C2440: '=' : cannot convert from 'char [83]' to 'LPCTSTR' why this error coming please explain

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• Security Policy not working, as3

  - by VideoDnd

  How to I get my security policy working? My parent swf parses an XML doc and loads 2 children. It throws a 2148 security error, and only works in the Flash IDE. PARENT SWF flash.system.Security.loadPolicyFile("crossdomain.xml"); I've referenced my security file from my swf. I Also published my parent swf as 'network only' and put all the crossdomain.xml and everything else in the same folder. I need to click on the animations and have them place from a local computer at a kiosk. Any suggestions? POLICY FILE <?xml version=\"1.0\"?> <!DOCTYPE cross-domain-policy SYSTEM \"/xml/dtds/cross-domain-policy.dtd\"> <cross-domain-policy> <site-control permitted-cross-domain-policies=\"master-only\"/> <allow-access-from domain=\"*\" to-ports=\"*\" secure=\"false\" /> </cross-domain-policy>"

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• GIT vs. Perforce- Two VCS will enter... one will leave.

  - by Justin Bozonier

  So I'm in the process of getting GIT sold at work. First thing I need is to convince everyone that GIT is better at what they're already used to doing. We currently use Perforce. Anybody else go through a similar sale? Any good links/advice? One of the big wins is that we can worth with it disconnected from the network. Another win imo is the way adds/checkouts are handled. More points are welcome! Also we have about 10-20 devs total.

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• .NET platform independant sync framework

  - by Quandary

  Question: I need to synchronize a few ActionScript files from my computer to a network share (backup). I saw a quick fix would be using Microsoft Sync Framework for this, and write a windows service. My problem is I also use Linux, and before I start with MS vendor lockin, is there any sync framework/library/whatever I could use that works accross platform? Or does the MS sync framework work on Linux, too? It is my understanding that it is a wrapper around some com objects, thus it wouldn't work. All I need is synchronizing files. So never mind the database part, although it would be nice to have it, too.

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• NoSQL for concurrent reads/writes

  - by Mickael Marrache

  After getting some performance issues for an application using a MySQL database, I'm thinking of using NoSQL solutions. My architecture is as follows: One application receives messages from the network at a high throughput (i.e. 50000 messages/sec). Each message is stored in the DB, so it's important for the write rate to be as fast as the arrival rate. Then, I also have some PHP pages that accesses the DB to get the data stored by the other application. It's important for me that the retrieved data is as relevant as possible (i.e. not old data, let's say not more than 5 seconds old). Also, the data is not critical, so I don't need any security mechanism to avoid losing the data. I see there are a lot of NoSQL solutions, but I don't know if they are all relevant. Could you please provide me some directions. Thanks

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• How to get the computer name (hostname in a web aplication)?

  - by Filipe

  Hi, how can I get the client's computer name in a web application. The user in a network. Regards // Already tryed this option string IP = System.Web.HttpContext.Current.Request.UserHostAddress; string compName = DetermineCompName(IP); System.Net.IPHostEntry teste = System.Net.Dns.GetHostEntry(IP); ssresult = IP + " - " + teste.HostName; // TODO: Write implementation for action private static string DetermineCompName(string IP) { IPAddress myIP = IPAddress.Parse(IP); IPHostEntry GetIPHost = Dns.GetHostEntry(myIP); string[] compName = GetIPHost.HostName.ToString().Split('.'); return compName[0]; } All of that, gives me only the IP :/

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• Using c#,c/c++ or java to improve BBN with GA

  - by madicemickael

  I have a little problem in my little project , I wish that someone here could help me! I am planning to use a bayesian network as a decision factor in my game AI and I want to improve the decision making every step of the way , anyone knows how to do that ? Any tutorials / existing implementations will be very good,I hope some of you could help me. I heard that a programmer in this community did a good implementation of this put together for poker game AI.I am planning to use it like him ,but in another poker(Texas) or maybe Rentz. Looking for C/c++ or c# or java code. Thanks , Mike

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• Can somehow show progress on file upload without using AJAX?

  - by nimo

  Let's say that I upload a file using a basic multipart post. The server then receives the request and starts to execute the server side code. Can I somehow in that state start to output the response and after some data is sent start to receive the file? Finally when the file is uploaded I output the rest of the response. If this is possible I can display file upload progress without using ajax? I guess this might depend on what I run server side. But let's assume that I have full network control.

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• Tkinter after that survives clock rewinding.

  - by Oren

  I noticed that in my version of Tkinter, the after() call does not survive system clock rewinding. If the after(x, func) was called, and the system clock was rewinded, func will be called only after the clock returned to its time before the rewind + x milliseconds. I assume this is because Tkinter uses the system-clock instead of the "time.clock" (the amount of time that the program is running). I tested it only on windows, and maybe its because I have an old version of Tkinter. I want my App to work on computers that synchronize their clock from the network... Does anyone have a simple solution?

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• [java] how to parse XML document?

  - by user32167

  I have xml document in variable (not in file). How can i get data storaged in that? I don't have any additional file with that, i have it 'inside' my sourcecode. When i use DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder db = dbf.newDocumentBuilder(); Document doc = db.parse(XML); (XML is my xml variable), i get an error java.io.FileNotFoundException: C:\netbeans\app-s7013\<network ip_addr="10.0.0.0\8" save_ip="true"> File not found.

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• using Cookie-free Domains for Components

  - by JPro

  I was looking at the post here which says When the browser makes a request for a static image and sends cookies together with the request, the server doesn't have any use for those cookies. So they only create network traffic for no good reason. Although I tend not to use cookies at all, my doubt is I used to think that the server creates the cookies to store the session varialbles etc and sends to the client. But this statement says the reverse of that. I don't quiet understand what is the need for the browser to create and send cookies with the request, to me it doesn't make any sense?. Can anyone please correct me? Thanks/.

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• apache on windows virtual directory config help

  - by sprugman

  I'm running Apache on Windows XP via Xampplite, and could use help configuring my virtual directory. Here's what I'm hoping to do on my dev box: I want my source files to live outside of the xampp htdocs dir on my local machine I can access the project at http://myproject others on my local network can access the project at my.ip.address/myproject keep localhost pointing to the xampp's htdocs folder so I can easily add other projects. I've got 1 & 2 working by editing the windows hosts file, and adding a virtual directory in xampp's apache\conf\extra\httpd-vhosts.conf file. I don't immediately see how to do 3 without messing up 4.

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• Remote desktop connection to Raspberry Pi without specifying a port

  - by Max Methot

  I have a Raspberry Pi running Raspbian Wheezy connected in "Site A", where the network is managed by a third party company and where all ports are closed the the Internet (for security reasons). So, there is no way for me to do any port forwarding to VNC, nor SSH or anything else. That means I just can't access it in any way other than locally, on-site. However, I need to connect to that device on the X Desktop session (graphical interface) to do some maintenance, and I am located in let's say "Site B", which is nearly 300 miles away from site A. I know you can do such tasks on Windows or x86 Linux computers with TeamViewer (we use it for our other hardware in the same location and it works like a charm), but since the Raspberry Pi is based on an ARM architecture, it isn't supported by TeamViewer yet. If anyone has ever achieved this, I would be glad to hear how to do it! Thanks!

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• PHP 2d array question

  - by Neral

  Hello, So i have a 2 dimensional array that is used over several pages (session) $_SESSION ["Table"][$_SESSION ["count"]] [0] = $filename; $_SESSION ["Table"][$_SESSION ["count"]] [1] = $size; $_SESSION ["Table"][$_SESSION ["count"]] [2] = $floor; $_SESSION ["Table"][$_SESSION ["count"]] [3] = $phone; $_SESSION ["Table"][$_SESSION ["count"]] [4] = $network; $_SESSION ["Table"][$_SESSION ["count"]] [5] = $totalprice; This is used with a form so i can give in multiple input wich gets stored. But my question is how exactly can i calculate the AVERAGE of $total price of all given in results? Meaning for example i have 5 rows so this would mean 5 total prices. How exactly can i acces this value and count everything up / 5? This will happen in a other page so i would like to use sessions for this. /5 simply by count($_Session["table"]) , but really not sure about the other values. Kind Regards.

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• sql server 2008 express. cannot create mdf databse.

  - by yair

  Hi, I'm working with visual studio 2008 express and sql 2008 express. I'm trying to create mdf database (Add new Item ...)and I recieve the following error message: "a network-related or instance-specific error occured while establishing a connection to SQL Server. The server was not found or was not accessible. Verfy that instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named pipes Provider:40 - could not open connection to SQL)" Why ? Is it possible to create mdf database with SQL 2008 Express ? If it is then what to do ?

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• Maximum open sll connections on Windows

  - by scooterman

  version: erlang R13B Hi all, how can I increase the amount of ssl ports/handles that my network server is able to create on Windows? On linux I was able to successful create about 1000 connections using: -env ERL_MAX_PORTS 80000 -P 268435456 and changing the maximum open fd's using ulimit. On windows apparently there is no effect using the same configuration, and sadly the number of open connections are VERY small (about 30, and it opens 6 handles for each one). I've noticed that the shell starts two other children processes, inet_gethost.exe and ssl_esock.exe. If these are the ones that I have to increase the port count, how do I do that? Thanks,

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• Display list of websites on local IIS server in a web page

  - by TGuimond

  Hey Guys, I am currently trying to figure out a way to list all of the websites that are running on a local IIS 6 server at the office and display links to each site with their descriptions so we can always find our development sites with ease. The way that the server is currently set up is I add a DNS record for a new site. eg: newsite.company.local and then add it to IIS. This way all the users in our office can access this site via their browser and developers can test, admins can review etc etc. What I want to do now is automatically generate a webpage with a list of all of the sites running on iis and have it be available across the network. I have never looked into this before and have no idea where to start.. help! Thanks :)

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• How to implement bridging/NAT on linux? [closed]

  - by mikepurvis

  What I have is a network topology which looks like this: ------ PC --- IP Camera The PC has two ethernet interfaces, and is hosting a small webserver providing some auxiliary data. The issue is that the server on the PC runs on port 80, and the IP Camera is also running on port 80. Currently, we are bridging them, so that the PC's server is accessible at 192.168.0.2 and the camera at 192.168.0.3. However, what I'm trying to explore is the feasibility of using the PC to expose them both on the PC's IP, ideally both on port 80. Can this be done with regular sockets, or will it be necessary to use raw sockets?

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• What if I made an explicit reference to 'this' for use inside an inner class?

  - by badp

  So far, I've used this approach to access this from the scope of an inner class: class FooManagementWindow extends JFrame { JButton rejectFoo; //... void getFooAcceptingPanel(){ //... final FooManagementWindow referenceToThis = this; rejectFoo = new JButton("Reject"); rejectFoo.addEventListener(new EventListener() { @Override public void actionPerformed(ActionEvent arg) { referenceToThis.setEnabled(false); //this requires a network call //... referenceToThis.setEnabled(true); //the user may resume his work } }); //... } } However, I just learned that instead of declaring referenceToThis, a direct reference is kept for me as: FooManagementWindow.this I have no reason to think my less standard approach may lead to errors or weird corner cases. Or are there?

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• Anyway to find out the current Windows is in lock mode?

  - by David.Chu.ca

  I have a windows application written in VS 2005. The application makes queries against to sql database in a timer cycle every 2 minutes. If there any data changes, the window will be refreshed with new data. If the user leaves the window, the windows will be automatically locked after a while. There is no sense to keep querying data in ever 2 minutes when the windows is locked; therefore I would like to stop the query when lock is on so that the network data trafic will be reduced and also saves the current windows resources such as memory and CPUs. I am not sure if there is any way to find out the current windows is locked? Not sure if there is any Windows APIs for this purpose if no .Net classes available? My project is in .Net 2.0 and all users are in Windows XP.

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• WCF: How to find out when a session is ending?

  - by TomTom

  I have a WCF application that is using sessions. Is there any central event to get thrown when a session ends? How can I find out when a session is ending WITHOUT (!) calling a method (network disconnect, client crashing - so no "logout" method call)? The server is hosted as: [ServiceBehavior( InstanceContextMode = InstanceContextMode.PerSession, ConcurrencyMode = ConcurrencyMode.Reentrant, UseSynchronizationContext = false, IncludeExceptionDetailInFaults = true )] Basically because it is using a callback interface. Now, I basically need to decoubple the instance created from the backend store when the session terminates ;) Any ideas?

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• Database for Large number of 1kB data chunks (MySQL?)

  - by The Unknown

  I have a very large dataset, each item in the dataset being roughly 1kB in size. The data needs to be queried rapidly by many applications distributed over a network. The dataset has more than a million items (so 500 million+ 1kB data chunks). What would be the best method to storing this dataset (need to allow adding more items, and reading them rapidly, but never modifying already added data)? Would using a MySQL DB using the binary blob format be appropriate? Or should each of these be stored as files on a file system? edit: the number is 1 million items now, but needs to be able to scale to well over 500 million items easily.

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• Java Synchronized Write Block

  - by ikurtz

  im new to java and i have a question regarding Synchronized. i have the following code for writing to network (simple implementation for now): public void networkSendData(byte[] data){ try { out.write(data); out.flush(); } catch (IOException e) { } } i was wondering if there is a need for block level Synchronized here as im am writing the whole data at once. or is there a chance for race condition? i ask because the data to write is coming for multiple sources. thank you.

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