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• Uploading Files Using ASP.NET Web Forms, Generic Handler and jQuery

  - by bipinjoshi

  In order to upload files from the client machine to the server ASP.NET developers use FileUpload server control. The FileUpload server control essentially renders an INPUT element with its type set to file and allows you to select one or more files. The actual upload operation is performed only when the form is posted to the server. Instead of making a full page postback you can use jQuery to make an Ajax call to the server and POST the selected files to a generic handler (.ashx). The generic handler can then save the files to a specified folder. The remainder of this post shows how this can be accomplished.http://www.bipinjoshi.net/articles/f2a2f1ee-e18a-416b-893e-883c800f83f4.aspx      

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• Color indication in Visual Studio 2012

  - by Jalpesh P. Vadgama

  This post will be a part of Visual Studio 2012 series. Before some days Microsoft has released the release candidate version of Visual Studio 2012. Today I got installed Visual Studio 2012 and once I loaded the visual studio 2012 first things I noticed that there is purple color blank strip is there at bottom. After doing some R and D on internet I have found that it is used for the different indication. The purple color indicates that there is no project loaded now. Once you open the project this line will be of blue color like below. Once you run and F5 and debug it, the color will change to orange like below . Isn’t that great? A simple color indicator for each mode in visual studio 2012. Stay tuned for the more. I am going to put some more post about Visual Studio 2012. Till then happy programing

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• OSB, Service Callouts and OQL - Part 1

  - by Sabha

  Oracle Fusion Middleware customers use Oracle Service Bus (OSB) for virtualizing Service endpoints and implementing stateless service orchestrations. Behind the performance and speed of OSB, there are a couple of key design implementations that can affect application performance and behavior under heavy load. One of the heavily used feature in OSB is the Service Callout pipeline action for message enrichment and invoking multiple services as part of one single orchestration. Overuse of this feature, without understanding its internal implementation, can lead to serious problems. This post will delve into OSB internals, the problem associated with usage of Service Callout under high loads, diagnosing it via thread dump and heap dump analysis using tools like ThreadLogic and OQL (Object Query Language) and resolving it. The first section in the series will mainly cover the threading model used internally by OSB for implementing Route Vs. Service Callouts. Please refer to the blog post for more details. 

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• Empathy auto accept group chat invite

  - by Sivaji

  I'm using empathy 2.34.0 as chat client for account hosted on Google app (server talk.google.com). I'm happy with the features that empathy provides and integration with Google chat, however for group chat when the request is received I need to click on "join" button showed in popup to get started. This makes sense but I would to know if there is any way to automatically join the chat room without clicking the "join" button as I use it only with trusted uses. Besides the messages shared after the invite request and before my entry to chat room is not accessible to me. I looked around the empathy settings but couldn't find anything useful, wondering if I can get some help from here. Thanks.

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• notification from additional driver

  - by MAHESH

  today i installed ubuntu 11.10 in my HP laptop well everything goes well installation and updates. i get notification on task bar from additional driver No propritery drivers are in use on this system i will elaborate what i seen on the screen proprietry driver do not have public source code that ubuntu developer are free to modify security updates and correction depend solely on the respnsiveness of the manufacture ubuntu cannot fix or improve these drivers. ATI/AMD proprietry FGLRX graphic driver( post release update) 2.ATI/AMD proprietry FGLRX graphic driver ATI/AMD propreitry FGLRX graphics driver(post release update) tested by ubuntu developers License propreitry 3D accelerated propreitry graphic drivers for ATI cards. This driver is required to fully utilise the 3D potential of some ATI graphic and as well as provide 2D accelerate newer card. guys do i need to active this driver in order to accomplish the complete installation. your response will be greatful

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• PHP, when to use iterators, how to buffer results?

  - by Jon L.

  When is it best to use Iterators in PHP, and how can they be implemented to best avoid loading all objects into memory simultaneously? Do any constructs exist in PHP so that we can queue up results of an operation for use with an Iterator, while again avoiding loading all objects into memory simultaneously? An example would be a curl HTTP request against a REST server In the case of an HTTP request that returns all results at once (a la curl), would we be better off to go with streaming results, and if so, are there any limitations or pitfalls to be aware of? If using streaming, is it better to replace curl with a PHP native stream/socket? My intention is to implement Iterators for a REST client, and separately a document ORM that I'm maintaining, but only if I can do so while gaining benefits from reduced memory usage, increased performance, etc. Thanks in advance for any responses :-)

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• Bug Tracking Etiquete - Necromany or Duplicate?

  - by Shauna

  I came across a really old (2+ years) feature request issue in a bug tracker for an open source project that was marked as "resolved (won't fix)" due to the lack of tools required to make the requested enhancement, but since the determination was made, new tools have been developed that would allow it to be resolved, and I'd like to bring that to the attention of the community for that application. However, I'm not sure as to what the generally accepted etiquette is for bug tracking in cases like this. Obviously, if the system explicitly states to not duplicate and will actively mark new items as duplicates (much in the way the SE sites do), then the answer would be to follow what the system says. But what about when the system doesn't explicitly say that, or a new user can't easily find a place that says with the system's preference is? Is it generally considered better to err on the side of duplication or necromancy? Does this differ depending on whether it's a bug or a feature request?

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• Openx api Advertiser statistics call [migrated]

  - by Sameer

  I am trying to write a jsp application which will establish the xmlrpc connection with openxapi and return the values. I am using openxapi v1 Here I get the dates through a datepicker and then convert to date format: `String dateStr = request.getParameter("datum1"); SimpleDateFormat formater = new SimpleDateFormat("dd-MM-yyyy"); Date result1 = formater.parse(dateStr); String dateStr2 = request.getParameter("datum2"); SimpleDateFormat formater2 = new SimpleDateFormat("dd-MM-yyyy"); Date result2 = formater2.parse(dateStr2);` Then I call the service provided by openxapi (Advertiser Daily Statistics) (sessionID, advertiserID, from date, to date) Object[] objects1=(Object[])client.execute("advertiserDailyStatistics", new Object[]{sessionId,3,result1,result2});

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• Modifying the SL/WIF Integration Bits to support Issued Token Credentials

  - by Your DisplayName here!

  The SL/WIF integration code that ships with the Identity Training Kit only supports Windows and UserName credentials to request tokens from an STS. This is fine for simple single STS scenarios (like a single IdP). But the more common pattern for claims/token based systems is to split the STS roles into an IdP and a Resource STS (or whatever you wanna call it). In this case, the 2nd leg requires to present the issued token from the 1st leg – this is not directly supported by the bits. But they can be easily modified to accomplish this. The Credential Fist we need a class that represents an issued token credential. Here we store the RSTR that got returned from the client to IdP request: public class IssuedTokenCredentials : IRequestCredentials {     public string IssuedToken { get; set; }     public RequestSecurityTokenResponse RSTR { get; set; }     public IssuedTokenCredentials(RequestSecurityTokenResponse rstr)     {         RSTR = rstr;         IssuedToken = rstr.RequestedSecurityToken.RawToken;     } } The Binding Next we need a binding to be used with issued token credential requests. This assumes you have an STS endpoint for mixed mode security with SecureConversation turned off. public class WSTrustBindingIssuedTokenMixed : WSTrustBinding {     public WSTrustBindingIssuedTokenMixed()     {         this.Elements.Add( new HttpsTransportBindingElement() );     } } WSTrustClient The last step is to make some modifications to WSTrustClient to make it issued token aware. In the constructor you have to check for the credential type, and if it is an issued token, store it away. private RequestSecurityTokenResponse _rstr; public WSTrustClient( Binding binding, EndpointAddress remoteAddress, IRequestCredentials credentials )     : base( binding, remoteAddress ) {     if ( null == credentials )     {         throw new ArgumentNullException( "credentials" );     }     if (credentials is UsernameCredentials)     {         UsernameCredentials usernname = credentials as UsernameCredentials;         base.ChannelFactory.Credentials.UserName.UserName = usernname.Username;         base.ChannelFactory.Credentials.UserName.Password = usernname.Password;     }     else if (credentials is IssuedTokenCredentials)     {         var issuedToken = credentials as IssuedTokenCredentials;         _rstr = issuedToken.RSTR;     }     else if (credentials is WindowsCredentials)     { }     else     {         throw new ArgumentOutOfRangeException("credentials", "type was not expected");     } } Next – when WSTrustClient constructs the RST message to the STS, the issued token header must be embedded when needed: private Message BuildRequestAsMessage( RequestSecurityToken request ) {     var message = Message.CreateMessage( base.Endpoint.Binding.MessageVersion ?? MessageVersion.Default,       IssueAction,       (BodyWriter) new WSTrustRequestBodyWriter( request ) );     if (_rstr != null)     {         message.Headers.Add(new IssuedTokenHeader(_rstr));     }     return message; } HTH

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• Hyperion Calculation Manager in the Oracle Communities

  - by THE

  (guest post by Mel)Do you use the Oracle Hyperion Calculation Manager?Did you know that an easy way to access the product knowledge of Oracle employees and other customers are the My Oracle Support Communities?Oracle Hyperion Calculation Manager can be used with these Oracle Hyperion products: HFM Hyperion Planning Hyperion Essbase OBIEE OBIA Please log into the  My Oracle Support Communities and post your question to the relevant community.I like to encourage you to add Calculation Manager or "Calc Man" at the beginning of the subject field when posting your questions.This will help the Oracle moderators and other Community member to quickly identify queries about the Oracle Hyperion Calculation Manager and assist you with it.Thank you for your ongoing contributions to our My Oracle Support Community.

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• The performance implications of IEnumerable vs. IQueryable

  It all started innocently enough. I was implementing a "Older Posts/Newer Posts" feature for my new web site and was writing code like this:IEnumerable<Post> FilterByCategory(IEnumerable<Post> posts, string category) {  if( !string.IsNullOrEmpty(category) ) { return posts.Where(p => p.Category.Contains(category)); }}...  var posts = FilterByCategory(db.Posts, category);  int count = posts.Count();... The "db" was an EF object context object, but it could just as...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• The performance implications of IEnumerable vs. IQueryable

  It all started innocently enough. I was implementing a "Older Posts/Newer Posts" feature for my new web site and was writing code like this:IEnumerable<Post> FilterByCategory(IEnumerable<Post> posts, string category) {  if( !string.IsNullOrEmpty(category) ) { return posts.Where(p => p.Category.Contains(category)); }}...  var posts = FilterByCategory(db.Posts, category);  int count = posts.Count();... The "db" was an EF object context object, but it could just as...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Recovering a deleted partition

  - by Kishore

  I had a dual boot PC running Ubuntu 12.04 and Windows 7. About a month back, I deleted the Ubuntu partition via the disk management utility (I do not remember whether or not I formatted the partition after performing this action). I ran into some grub issues and used lilo to solve the issue. I followed the simple instructions described in this blog post. I now realize that there were some files in the Ubuntu installation that I need. Of course, I backed up the data, but not this folder apparently. Is there any way to get the data back? I tried following the process suggested on another post on askubuntu (suggesting the use of TestDisk), but was not able to even install TestDisk. The live USB I use is running Ubuntu 12.04 and it does not have a synaptic package manager. Installing from the terminal does not work because even after I type: sudo apt-get update sudo apt-get upgrade the command: sudo apt-get install testdisk fails to work.

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• Storing a Hex Grid

  - by Pedro Caetano

  I've been creating a small hex grid framework for Unity3D and have come to the following dilema. This is my coordinate system (taken from here) Link because I'm a new user It all works pretty nicely except for the fact I have no idea how to store it. I originally intended to store this in a 2D array and use images to generate my maps. One problem was that it had negative values (this was easily fixed by offsetting the coordinates a bit). However, due to this coordinate system, such an image or bitmap would have to be diamond shaped - and since these structures are square shaped, this would cause a lot of headaches even if I hack something together. Is there anything I'm missing that could fix this? I recall seeing a forum post regarding this in the unity forums but I can no longer find the link. Is writing a set of coordinate translators the best solution here? If you guys think it would be helpful, I can post code and images of my problem.

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• How do I create and link to a database in ASP.NET (Razor) with Visual studio 2013?

  - by Blake

  We have a simple web app, part of which allows users to create accounts and then, hopefully soon, to write blog posts. The user log in system is working great, it utilizes the given .sdf database created when a new project is created. We would like to expand it now to allow for blog data (the title, body of the blog, image posts perhaps, etc). However, I'm unsure of how to add another table to the user database for this purpose - or if that would even be best since it has sensitive information in it. I've been reading blog post after blog post and still can't find anything current on this. All of the articles are for MVC projects or older versions of VS. If someone could point me in the right direction it would be greatly appreciated!

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• How can I install Ubuntu (SO many problems)

  - by Dragos

  I have a question, my friend tried installing Ubuntu on my notebook (Asus g75v) and nothing tried, at one point he went past the installation screen and every he used the mouse the screen flickered and the driver crashed (I assume) and it would go back a step, I heard that there is way to install ubuntu without any graphics, maybe that will help me with the screen flickering (I have a gtx 670m), so we tried WUBI installer, I tried installing with that and it gave me a Wubildr.mbr missing error, so I gave that up after several times, although I do notice that I have an intel driver, and I keep downloading AMD versions, does that effect anything? I'm having trouble installing Ubuntu and I wish to be able to run it on my laptop, I want to learn this OS and I cannot even install it, I am a bit concerned, if anyone can back at me with any answer at all, please don't hesitate to post, just please don't post if you don't know what's going on, thanks for listening! ~cheers -Dragos

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• How do I Export to excel on aspx page?

  - by meltdownmonk

  I am trying to take data that I request from an access database and put it into and excel file on the client computer. I usually use ajax to request a summary of the data I need. It is formatted into an html table. I need that table to be in an excel format for the user to download. What I have tried already is to use the vb.net code to open excel and silently save the data to a file, however I realized it's the sever side that opens excel, not the client side, in my locally testing of the code, excel would open on my machine and create the file. When running this on the network, I realized excel isn't on the server, I am not sure if I should just install it, or try and steam the file.

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• Null Or Empty Coalescing

  In my last blog post, I wrote about the proper way to check for empty enumerations and proposed an IsNullOrEmpty method for collections which sparked a lot of discussion. This post covers a similar issue, but from a different angle. A very long time ago, I wrote about my love for the null coalescing operator. However, over time, Ive found it to be not quite as useful as it could be when dealing with strings. For example, heres the code I might want to write: public static void DoSomething(string...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• what is the preparation of before apply for ads?

  - by cj333

  I have built a new site(finished last week, but no SEO, no clients). I know apply for ads need a long time. So I send my request to google adsense, and then do the SEO, send my site to web search. but yesterday I received an e-mail: Thank you for your interest in Google AdSense. Unfortunately, after a consideration of his request, showed that the It is not possible to accept your application to attend AdSense. what is the preparation of before apply for ads? Am I ignore something must do before apply for ads? And how to apply Google doubleclicks? Or other ads service? I am newer for apply for ads. can anyone recommend me some good ads service? Thanks.

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• HTTP Session Invalidation in Servlet/GlassFish

  - by reza_rahman

  HTTP session invalidation is something most of us take for granted and don't think much about. However for security and performance sensitive applications it is helpful to have at least a basic understanding of how it works in Servlets. In a brief code centric blog post Servlet specification lead Shing Wai Chan introduces the APIs for session invalidation and explains how you can fine tune the underlying reaper thread for session invalidation when it is needed in GlassFish 4. Don't hesitate to post a question here if the blog is not clear, this is a relatively esoteric topic...

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• What are the most effective learning methods?

  - by BuckWoody

  After I got done speaking at the SQL Server 2008 R2 Launch Event yesterday I came back to the hotel room for a web-meeting with some of the other teachers at the University of Washington. As teachers we are always looking to improve the knowledge transfer to our students – and the Program Director found an interesting study that I thought I might share here. Below is an un-labeled chart showing the effectiveness of learning methods according to a recent study. At the top are the labels. (“Teaching” here means students teaching each other). Try the experiment we did: place the labels where you think they’ll go. I’ll post the completed chart tomorrow. Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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• Covering Yourself For Copyrighted Materials [on hold]

  - by user3177012

  I was thinking about developing a small community website where people of a certain profession can register and post their own blogs (Which includes an optional photo). I then got to thinking about how people might use this and the fact that if they are given the option to add a photo, they might be likely to use one that they simply find on Google, another social network or even an existing online blog/magazine article. So how do I cover myself from getting a fine slapped on me and to make it purely the fault of the individual uploader? I plan on having an option where the user can credit a photo by typing in the original photographers name & web link (optional) and to make them tick a check box stating that the post is their own content and that they have permission to use any images but is that enough to cover myself? How do other sites do it?

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• ATI graphics card, with gnome shell, screen flickers

  - by bioShark

  After installing gnome shell, without any problem, after log in the fonts are missing and it looks like crap...nothing is readable. Don't want to make it a double post, because my issue is similar to the one from this question but for me the problems have not been solved properly. After running the commands from that post, and installing the latest AMD 11.10 driver, the Gnome shell display issues have been solved. But each time I move the mouse in the upper left corner, to bring up the applications...my entire screen flickers. Without the applications been displayed, everything looks fine. Hardware: ATI HD4870, Intel Q6600.

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• Jquery modal plugin

  - by trante

  In my web application i have one page call it mypage.html When user clicks some link in mypage a modal window will be opened and he will see some html page. (I do this by Colorbox or Twitter Bootstrap now) But when user clicked a button in modal window, an Ajax request will be sent to my server. If request is successfull he will see some new modal window, else user will see another modal window. After all steps user will close modal window and tasks will be finished. Which jquery modal window plugin is suitable for this type of usage?

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• How to insert in a blog sharing links to visitors Tweet, Facebook and so on social networks?

  - by Andry

  I am developing a web blog using ASP.NET, but I guess that the tech details like this, here, is not important. My aim is to insert in every post I create those nice buttons to the social networks account of my visitors so that they can quote or post the link to the blog entry in their space. How can I do this? I guess it also de3pend on the social network I want to use. Lets say, now, that I want to have links to Facebook, Tweet and Google circle accounts. Thankyou.

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