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• Most efficient way to download media files from a server from within an iPhone app.

  - by nikki

  Hi, I have an iPhone application which contains a lot of media files, so far we have been able to keep the size of the iPhone app to less than 20 MB. We add new content with new updates, it would be difficult to keep the app size within the 20 MB limit. The right thing to do here would be to fetch the files on demand from a media/web server. If you have any pointers on how to go about doing this, please suggest. What we would need is to fetch the media files (.jpg/.png images ) on demand when the user taps on a small thumbnail for the image. Are there existing frameworks/servers that provide such services to iPhone clients. Thanks.

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• Rewriting URL in AJAX application

  - by Artem Moskalev

  I am making a simple online application. I have a navigation bar with a few buttons and one "div" into which all the new contents will be loaded dynamically i.e. when I click "About", it will load the page parts into the "div" without reloading the whole page with .load() function. The problem is: what if I need to give a link to the Documents section of my web site, or the user wants to store this kind of link, the url is not rewritten when browsing my site. when the user stores the default link it will always link him to the default "Home" part. How can I rewrite the URL and what is the most correct way to do this?

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• Session being reset when using sub-domain.

  - by Adam Witko

  Hi, I'm trying to use sub-domains in my ASP.NET website but I'm coming across a few problems with the session being reset. I've edited my hosts file to have 'localhost', 'one.localhost' and 'two.localhost'. I can go to any of these URLs and do what I need to do and login to my system. The session mode is defined as follows in the web.config: I'm using SQLServer as the website will be ran as a webfarm. What I'm finding is when I click something that causes a postback all the session is lost and a new session id is created, when this occurs my website is now 'localhost' rather than the logged in 'one.localhost' for example. Does anyone know what might be causing this? Cheers

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• Taking web page screen shot in Windows 8 Metro app

  - by Megan

  I'm trying to take screen shot of web page in Windows 8 Metro app. So far the only helpful control is the WebView. Unfortunately it does not contain any method like DrawToBitmap (known from Forms WebBrowser control). Am I missing something? Different approach would focus on injecting some JS (e.g. html2canvas) to page rendered in WebView but I don't think it is possible due to security reasons. I would greatly appreciate any help.

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• Developing on a windows machine that interacts with a linux system

  - by Jamie

  Sorry for the bad title (couldn't think of a better way to describe it) I have a windows machine which I do development on. However, I have a new project which needs to interact with a linux system (executing linux commands etc.). So, obviously I can't do development on my windows machine..and I don't wish to code on the dev machine, svn commit and then svn update it on the linux machine. Is there a way where any changes I make on my dev machine will be quickly mirrored to the linux machine? SVN is not a very quick alternative and of course some changes will be very minor. Any ideas? A network share I guess....but that's not very pretty (bit slow too). As fellow developers I would like to know if you've been in a similar situation and how you've resolved it. On a furthernote, I can't just install Ubuntu as my development machine and mirror the commands, applications etc. from the linux machine because it's a cluster 'master' machine and so therefore it has quite a special configuration. Thanks guys! EDIT: I've also thought about having web services on the linux machine and then just calling them from code thus seperating platform development dependency. What do you think about that too? thanks

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• Unique serial number in a java web application.

  - by Zenzen

  I've been wondering what's the correct practice for generating unique ids? The thing is in my web app I'll have a plugin system, when a user registers a plugin I want to generate a unique serial ID for it. I've been thinking about storing all numbers in a DB or a file on the server, generating a random number and checking whether it already exists in the DB/file, but that doesn't seem that good. Are there other ways to do it? Would using the UUID be the preferred way to go?

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• Call Web Service from https and parse responded xml data in Java

  - by Nirmal

  Hello All.. I need to get connect with https url, send my request schema and I will get some xml response from web service. For https url connection I am using : HttpURLConnection con = (HttpURLConnection)myurl.openConnection(); con.setDoOutput(true); con.setDoInput(true); con.setUseCaches(false); InputStream ins = con.getInputStream(); con.setRequestProperty("Content-type","text/xml"); So, from above code I am getting responded XML from server. Now my question is which would be best parser for me to parse responded xml data to my Simple Java Object. I have goggled alot on that, and getting various solutions but I have confuse for choosing appropriate one. if anybody have suggestion with some sample example, then please provide.. Thanks in advance...

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• Download office document without the web server trying to render it

  - by Dan Revell

  I'm trying to download an InfoPath template that's hosted on SharePoint. If I hit the url in internet explorer it asks me where to save it and I get the correct file on my disk. If I try to do this programmatically with WebClient or HttpWebRequest then I get HTML back instead. How can I make my request so that the web server returns the actual xsn file and doesn't try to render it in html. If internet explorer can do this then it's logical to think that I can too. I've tried setting the Accept property of the request to application/x-microsoft-InfoPathFormTemplate but that hasn't helped. It was a shot in the dark.

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• Wrong image dimensions when it's dynamically loaded on a page the 1st time

  - by Nikita Barsukov

  I have the following piece of Javascript code on my web-page var central_image = document.createElement("img") central_image.setAttribute("src", imgs[curr_image_no - 1]); central_image.setAttribute("name", "jpeg"); document.getElementById("photo").appendChild(central_image); central_image.onload = getDimensions(); //function that alerts image dimensions Now, when the central_image is loaded for the 1st time in Firefox, its height always equals to 0. In IE its dimensions are 28 x 30 pixels. When I reload image, its dimensions are OK in both browsers. I guess the problem is that function getDimensions() starts before image was loaded completely. How to change that?

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• generating an asp.net web application dll requirement list

  - by Oren Mazor

  I'm trying to set up a web app (32bit on ii7/win7, 32bit setting is enabled, everything is compiled to x86, using vs2008), but there's clearly some dll module loading issue happening. I've been watching procmon and fusion logs but I'm not seeing the name of the missing dll. I'm a complete newbie to asp.net (but fairly heavy experience on other platforms). I know I can call depends.exe on a binary to see what the dependancies are, but how do I do it for asp.net? specifically, is it possible to get a list of the dlls that iis7 loads for my application?

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• Cookie blocked/not saved in IFRAME in Internet Explorer

  - by Piskvor

  I have two websites, let's say they're example.com and anotherexample.net. On anotherexample.net/page.html, I have an IFRAME SRC="http://example.com/someform.asp". That IFRAME displays a form for the user to fill out and submit to http://example.com/process.asp. When I open the form ("someform.asp") in its own browser window, all works well. However, when I load someform.asp as an IFRAME in IE 6 or IE 7, the cookies for example.com are not saved. In Firefox this problem doesn't appear. For testing purposes, I've created a similar setup on http://newmoon.wz.cz/test/page.php . example.com uses cookie-based sessions (and there's nothing I can do about that), so without cookies, process.asp won't execute. How do I force IE to save those cookies? Results of sniffing the HTTP traffic: on GET /someform.asp response, there's a valid per-session Set-Cookie header (e.g. Set-Cookie: ASPKSJIUIUGF=JKHJUHVGFYTTYFY), but on POST /process.asp request, there is no Cookie header at all. Edit3: some AJAX+serverside scripting is apparently capable to sidestep the problem, but that looks very much like a bug, plus it opens a whole new set of security holes. I don't want my applications to use a combination of bug+security hole just because it's easy. Edit: the P3P policy was the root cause, full explanation below.

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• Multimedia content in REST responce(XML/JSON)

  - by Koushik

  In my thesis I need to test different architectures. A request to a REST web service developed using Apache CXF and Spring MVC with MySQL as back end serving references(a field in database) to images,audio and video files stored in file system. In the response message, what is the best method to send the content to the client(another application using the service which I developed). URI: http://www.filmservices.com/film/{id} A client here is not the end user. Send the encoded hyperlink's(where the content is stored in the file system) to the client, so that the client renders the response and displays it to the browser. Use Base64 to encode the message(image,audio,video) and send it to the client. Main concern is performance.

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• "derivative work" and the consumption of web services

  - by yodaj007

  From the Wowhead Terms of Service: "Intellectual Property Rights The Service and any necessary software used in connection with the Service ("Software") contain proprietary and confidential information that is protected by applicable intellectual property and other laws. You agree not to modify, rent, lease, loan, sell, distribute or create derivative works based on the Service or the Software, in whole or in part." Does this mean that I can't write a program to consume a web service being published by the writers of this TOS? I find it kind of scary that I even have to ask this question. The wikipedia article on "derivative works" isn't very conclusive.

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• Is there a way to send a blog post to wordpress via an api?

  - by Yuval Cohen

  In more details: I want to build a web service to which users register and by browsing my site, users can send blog posts to their own blogs. Initially wordpress.org is discussed. However, I'll be happy to hear solutions for typepad or wordpress.com as well. The ideal solution would be a way for my server to simply "tell" their blog what to post (as a draft of course for them to confirm). A good solution would be for my users to install a plugin in their blog that will allow my server the above functionality. Lacking any other solution, I would give my users text to copy-paste into their blog editor. Help me find a solution and feel free to be creative!

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• Calling a web service from javascript and .net 2.0

  - by rod

  Hi All, Is it possible to call a web service (on my localhost) from jquery in a plain html page inside an asp.net 2.0 application? <script type="text/javascript"> $(document).ready(function(){ $('#button1').click(function(){ $('#targetDiv').load('http://localhost/testservice/Service1.asmx/HelloWorld',null,function(){alert('test')}); }); }); </script> I'm getting a 500 error? Not sure if it's even possible to do this way? thanks, rod

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• UI fonts and languages

  - by Kai Sellgren

  I am developing a multilingual web application that has a nice looking UI. I thought using CSS 3's font-face property to make it even nicer UI, but I'm not really sure if that's a good idea. According to some people I have talked to, different languages need different fonts. This means that there is no single font that can display characters of all languages, because the same character may look different across languages. For example, according to Wikipedia, the Unicode code point U+4EE4 looks different in Korean and Japanese languages. So my question is, would it make most sense to contain the fonts within the language packs -- or within the themes of my UI?

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• Can't access my files in ASP.NET web site

  - by jumbojs

  I'm having a very difficult time. I am running windows 2008 server, I have an Able Commerce site using ASP.NET with C#. I'm writing an automated task that will ftp some xml files down into a local directory on our web server and then the program parses the xml file and saves information to our database. The problem, once I save the files to our local directory, my program has no access to the files. The NETWORK SERVICE user permissions isn't being inherited by the xml files so my program can't do anything with them. I can manually change the permissions, but this wouldn't be automated and won't work. How can I get this to work? help please, it's very frustrating.

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• problem in multiple asynchronous calls on webservice method in wpf application

  - by black sensei

  Hello Experts! i'm trying to create an application which connects to internet and consume web services for every of it's operation.As far as i'm concerned i'll like to useasync method which i'm using already to get a collection of Contacts.I've realized that when i'm doing the same for groups (meaning getting groups async) i'm having errors in the calls , but when using normal call there ins't.So i did some research online and find that a lot of people has the same problem. Some of them are asked to use WCF (for which i don't know jack).I'll like to know if there is another way to overcome this. if not can somebody point me to reliable resource online and help me get through it? thanks for reading and helping

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• Preventing concurrent data modification in Web based app

  - by Manoj

  Hi, I am building a web app in Silverlight which allows users to view and edit a database. In order to prevent multiple users from editing the same data, I was thinking of implementing a lock and key mechanism, so that other users are made to wait when one particular user is editing the data. Is there any way in which we can have variable(flag specifying if a user is editing data) in the server which can be shared across multiple clients? Is there a better way to manage this type of conurrent data access issues?

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• Font families on the iPhone

  - by PurplePilot

  Normally in a web app i would put a font-family in the CSS something like this " font-family: "Helvetica Neue", Arial, Helvetica, Geneva, sans-serif;" This way i cover my bases as to whether the target browser can handle the various fonts and will fail gracefully if it is missing some. However that are only a limited number of fonts on the iphone and presumably if you only specify one, say Helvetica, the iPhone will always have that font and use it. So i don't really need a font-family. Do I?

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• What alternatives are there for asp.net forms authentication?

  - by Eytan Levit

  Hi, We are developing a web app that will have a pretty complex user and permission system. The general idea is that we have 3 levels of security: a simple user - that can only access basic data that is in a data repository a manager - that can open up data repositories a superuser - that can open up repository factories. each repository contains various data types(text, images, etc etc). We are looking for authentication methods that will allow us: 1. Scalability. 2. Customization. 3. To create permissions that will effect the GUI + deny access to certain pages. 4. To create predefined roles - that will allow for easy setup of new users. 5. To create custom roles for specific users - allowing them permission sets that are different from the predefined roles. Thanks in advance

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• Problem with compiler in Web.Config for generating xml doc

  - by asksuperuser

  I have several problems when putting code below in Web.Config to be able to generate xml doc with website (not webproject): <compiler language="c#;cs;csharp" extension=".cs" warningLevel="0" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" compilerOptions="/doc:c:\doc\WebDocs.xml"> How do I put a directory with spaces instead of /doc:c:\doc\WebDocs.xml? How do I put a directory that is a subdirectory of current project? Why my xml file output is nearly empty? Is it because some properties, methods, ... have no xml comment?

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• Replicate Printed Form With Web Form

  - by Michael

  I'm hoping people have some ideas to help solve this problem. I am developing a C# ASP.NET website and the client requires an online form that users will fill in and submit. OK, so far so good..... Imagine, say, a form that you fill in on paper - they normally have a distinctive look specific to the company and will be filed, quite possibly as a legally binding document. I need to have an online form that when submitted emails the client with something they can print out and will look exactly like their printed forms. As this is web based, I think the option of capturing a screenshot are out the question, so I'm wondering how best to approach this? Even if I just had a form that captures the data presented how I want, how could I translate this data into the view they want? Any ideas and suggestions greatly appreciated.

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• Does an HttpHandler require an aspnet_isapi.dll mapping

  - by DEH

  Hi, If I configure (via web.config) an httphandler to handle all .gif requests for a specific folder, is it absolutely essential for me to map .gif requests to aspnet_isapi.dll in IIS? Is there any other way of ensuring that the .gif http request will be handled by aspnet_isapi.dll? I have a server configured where the virtual dir that contained the .gif-aspnet_isapi.dll mapping has been deleted, but the .gif requests are still being passed to the handler. Anyone know how this might be being done, and where the setting might be lurking? Thanks

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• Architecting a generic search result web control

  - by Bartek Tatkowski

  In a project I'm currently working for we've stumbled upon the need for several kinds of search results presentation controls. The search result are similar, but not identical. For example, in the "office search" result we might want to present the office name and location, while in the "document search" could contain document name, author and publishing date. These fields should be sortable. My current strategy is to employ the Factory pattern and do something like this: ISearchResult officeResults = SearchResultFactory.CreateOfficeSearchResults(data); ISearchResult documentResults = SearchResultFactory.CreateDocumentSearchResults(data); The problem is: I don't know how to implement the markup code. Should I just do Controls.Add(officeResults); in the containing page? Or is there some ASPX trickery to create generic web controls? Or maybe I'm overthinking this and just should create five classes? ;)

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