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  • Multilingual sites and Google search results, using sub-folders for language

    - by AWinter
    About three months ago we added an English version of our, previously Japanese only, site under the subfolder /en/ we've tried to follow the sometimes incomplete best practices laid out by Google by adding alternate tags to all pages that are currently translated. The top page for instance has the following meta tags for language. <link rel="canonical" href="/"> <link rel="alternate" hreflang="ja" href="/"> <link rel="alternate" hreflang="en" href="/en/"> While the English main page under /en/ has <link rel="canonical" href="/en/"> <link rel="alternate" hreflang="ja" href="/"> <link rel="alternate" hreflang="en" href="/en/"> Alternate languages are setup in the sitemap. (as per Google's recommendations) It seems however that Google absolutely refuses to show the English top page in results when the user is using English at google.com if you search you'll, as of this post, get the Japanese description and a title that Google has apparently invented instead of the title and description in the meta-tags for the /en/ index page. Does anyone have any experience with subfolders actually working to affect search results? What are the best practices for ensuring that the correct language version of my website is displayed through Google and other search engines? And how long will it take before the new language version becomes prominent in search engine results?

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  • Ubuntu-Java Installation-Topcoder-“Java not found”

    - by hakuna121
    I realized that this might be the dumbest question here, but being a total beginner as I am, I really couldn't figure it out after trying all kinds of instructions I could found on the web. Specs: Ubuntu 13.04; What I intended to do: check out the Algorithm Competition section, by clicking the second-to-left tab,located on the top-left of the page: http://community.topcoder.com/tc What I got: a pop-up saying Java not found! Java could not be automatically detected on your machine. This page will attempt to automatically install Java and Java Web Start. If the download and installation does not occur automatically, click the link below to go to the Sun website where you can download the latest version of Java. What I did: I followed instructions on this Ubuntu Documentation page: https://help.ubuntu.com/community/Java and installed OpenJDK(Java Runtime Environment/Browser plugin/SDK) through Ubuntu Software Center. Then I rebooted the system, tried the page again. But I still got the java not found pop-up described above. Question: What's missing the get this working? Thank you!

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  • Good links somehow being converted to ones with a PHP redirect (not a virus)

    - by Rebecca
    This has happened to links we put on web pages and in emails. We might put www.oursite.org/work/ but when I view source it shows up as webmail.ourhosting.ca/hwebmail/services/go.php?url=https%3A%2F%2Fwww.oursite.org%2F%2work%2F This ends up at the webmail login page for our web host. But only some of the people who click the link get the login page; others go directly to the original page we intended. We don't want it to go to the webmail login page, nobody needs to log in to our web site. This occurs for links to pages on our site, but also to links to other sites that we put in emails or in posts. It seems to be browser independent as well as e-mail client independent as we variously have used Firefox and Chrome as well as MS Outlook and Thunderbird. I've tried to resolve the issue with our webhost but they keep telling me they don't support our browser, or our email client (i.e., they don't understand the issue). At the moment, our only option is to try another web host just to get rid of their login. Any ideas about what's going on?

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  • SEO and internal links

    - by hanazair
    I'm fairly new to SEO and although I've read many articles on the topic I still don't have a clear idea of how to get my client's website get to the first page of Google Search. I run MOZ competitor analysis and see that a competitor that comes up at the top of Google Search has approximately same Domain Authority, Domain Moz Rank and Trust. They have 8 External Linking Root Domains while my client's site has five. Yet the competitor comes up as one of the top sites on the first page, and my client's side is on page #3. Then I noticed one drastic difference in competitor's ranking and that is Total Links. He has 1,388! I don't understand how this could be a positive factor in Search Engine ranking and how can they legitimately have 1,388 links (while only 14 of those are external). Another competitor who is #2 in search engine rankings has 773 links total with only 14 external links. It seems fishy, but yet there they are - at the top of the search engine results. Is that some current way to trick Search Engines? What to do if I'd like to get my client's website onto the first page by some legitimate means? Thanks.

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  • Redirection & SEO related stuff while moving to a new blog

    - by Karshim Kanwar
    I have a WordPress blog and recently I have setup a new blog lets call the old blog as blog old and new blog as blog new. What I did is moved the content, photos, pictures and all 250 posts from blog old to blog new. Both the blog name are changed as they are pointing to different domain names! I read helpful things in this site itself at here. I will no longer use blog old, moreover I am concerned about the SEO of the blog new. The blog new is fairly new (just 24 hours and no pages have been indexed in Google). I have done the following stuff: Deleted all the post share at Facebook fan Page, Twitter profile, Google+ page and Finally deleted the fan page/Twitter, Google+ page. Edited the link backs of old blog in the blog new. The question I have is: How do I prevent duplicate content issues? Do I go straightaway and delete all the posts in blog old? Should I start sharing the blog posts in blog new? Should I submit the new site to Webmaster Tools or wait for few weeks? Every comment here is appreciated! What issues can I face relating to SEO?

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  • Google Analytics Social Tracking implementation. Is Google's example correct?

    - by s_a
    The current Google Analytics help page on Social tracking (developers.google.com/analytics/devguides/collection/gajs/gaTrackingSocial?hl=es-419) links to this page with an example of the implementation: http://analytics-api-samples.googlecode.com/svn/trunk/src/tracking/javascript/v5/social/facebook_js_async.html I've followed the example carefully yet social interactions are not registered. This is the webpage with the non-working setup: http://bit.ly/1dA00dY (obscured domain as per Google's Webmaster Central recommendations for their product forums) This is the structure of the page: In the : ga async code copied from the analytics' page a script tag linking to stored in the same domain. the twitter js loading tag In the the fb-root div the facebook async loading js including the _ga.trackFacebook(); call the social buttons afterwards, like so: (with the proper URL) Tweet (with the proper handle) That's it. As far as I can tell, I have implemented it exactly like in the example, but likes and twitts aren't registered. I have also altered the ga_social_tracking.js to register the social interactions as events, adding the code below. It doesn't work either. What could be wrong? Thanks! Code added to ga_social_tracking.js var url = document.URL; var category = 'Social Media'; /* Facebook */ FB.Event.subscribe('edge.create', function(href, widget) { _gaq.push(['_trackEvent', category, 'Facebook', url]); }); /* Twitter */ twttr.events.bind('tweet', function(event) { _gaq.push(['_trackEvent', category, 'Twitter', url]); });

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  • Multilingual sites and Google search results, do subfolders really work?

    - by AWinter
    About three months ago we added an English version of our, previously Japanese only, site http://www.clubberia.com under the subfolder http://www.clubberia.com/en/ we've tried to follow the sometimes incomplete best practices laid out by Google by adding alternate tags to all pages that are currently translated. The top page for instance has the following meta tags for language. <link rel="canonical" href="/"> <link rel="alternate" hreflang="ja" href="/"> <link rel="alternate" hreflang="en" href="/en/"> While the English main page under /en/ has <link rel="canonical" href="/en/"> <link rel="alternate" hreflang="ja" href="/"> <link rel="alternate" hreflang="en" href="/en/"> We also have these alternate languages setup in the sitemap. (as per Google's recommendations) http://www.clubberia.com/sitemap.xml It seems however that Google absolutely refuses to show the English top page in results when the user is using English at google.com if you search for "clubberia" you'll, as of this post, get the Japanese description and a title that Google has apparently invented instead of the title and description in the meta-tags for the /en/ index page. Does anyone have any experience with subfolders actually working to affect search results? Am I being too impatient, or possibly doing something incorrect? Should we just give up on subfolders and push to subdomains (not the prettiest option)?

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  • Making WatiN Wait for JQuery document.Ready() Functions to Complete

    - by Steve Wilkes
    WatiN's DomContainer.WaitForComplete() method pauses test execution until the DOM has finished loading, but if your page has functions registered with JQuery's ready() function, you'll probably want to wait for those to finish executing before testing it. Here's a WatiN extension method which pauses test execution until that happens. JQuery (as far as I can see) doesn't provide an event or other way of being notified of when it's finished running your ready() functions, so you have to get around it another way. Luckily, because ready() executes the functions it's given in the order they're registered, you can simply register another one to add a 'marker' div to the page, and tell WatiN to wait for that div to exist. Here's the code; I added the extension method to Browser rather than DomContainer (Browser derives from DomContainer) because it's the sort of thing you only execute once for each of the pages your test loads, so Browser seemed like a good place to put it. public static void WaitForJQueryDocumentReadyFunctionsToComplete(this Browser browser) { // Don't try this is JQuery isn't defined on the page: if (bool.Parse(browser.Eval("typeof $ == 'function'"))) { const string jqueryCompleteId = "jquery-document-ready-functions-complete"; // Register a ready() function which adds a marker div to the body: browser.Eval( @"$(document).ready(function() { " + "$('body').append('<div id=""" + jqueryCompleteId + @""" />'); " + "});"); // Wait for the marker div to exist or make the test fail: browser.Div(Find.ById(jqueryCompleteId)) .WaitUntilExistsOrFail(10, "JQuery document ready functions did not complete."); } } The code uses the Eval() method to send JavaScript to the browser to be executed; first to check that JQuery actually exists on the page, then to add the new ready() method. WaitUntilExistsOrFail() is another WatiN extension method I've written (I've ended up writing really quite a lot of them) which waits for the element on which it is invoked to exist, and uses Assert.Fail() to fail the test with the given message if it doesn't exist within the specified number of seconds. Here it is: public static void WaitUntilExistsOrFail(this Element element, int timeoutInSeconds, string failureMessage) { try { element.WaitUntilExists(timeoutInSeconds); } catch (WatinTimeoutException) { Assert.Fail(failureMessage); } }

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  • Non-dynamic CMS [closed]

    - by user20457
    Some of the web sites I visit every day (news, sports, etc..), although the content changes very often (several times per day), the URLs always have .html extension, what makes me thing that the content has been generated once, and then published as a static page, rather than generated in every call, or even cached in memory. For example, the fictitious site "mysports.com" have a "futbol.html" page, and then yesterday Messi gets injured and they have another thing to put in that page, then I presume they post the new item in their CMS system, and automatically a publishing action is triggered aftewards that recreates "futbol.html" in a CDN with the new item and probably discard the oldest one. Then the ETag changes and clients will get the new page if they try to access it. (the site is fictitious but this is what I believe happened yesterday in the sports site I read) This would fit in the CQRS approach, and I presume they have a huge performance. I know lots of CMS (WP, Drupal, BlogEngine.net, DNN, etc...), but I have never seen any able of doing this, or at least, I was not aware this feautre. How are called those distributed CMS? Which are the most well known? Cheers.

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  • File Activation in Windows RT

    - by jdanforth
    The code sample for file activation on MSDN is lacking some code so a simple way to pass the file clicked to your MainPage could be: protected override void OnFileActivated(FileActivatedEventArgs args) {     var page = new Frame();     page.Navigate(typeof(MainPage));     Window.Current.Content = page;       var p = page.Content as MainPage;     if (p != null) p.FileEvent = args;     Window.Current.Activate(); } And in MainPage: public MainPage() {     InitializeComponent();     Loaded += MainPageLoaded; } void MainPageLoaded(object sender, RoutedEventArgs e) {     if (FileEvent != null && FileEvent.Files.Count > 0)     {         //… do something with file     } }

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  • Full Text Search Strategy For My Website

    - by Hosea146
    I have a website that allows users to search for items in various categories. Each category is a separate area (page) of my website. For example, some categories might be cars, bikes, books etc. At the moment a user has to search for an item by going to the page (for example, cars) and searching for the car they want. I would like to allow the user to search for anything on my site, from my main home page. At the moment, each page (category) has its own set of tables, and I don't really want to turn Full Text Search on for each table (20+ of them) and search each table individually when a search is done. This is going to be slow and tedious. What I'm thinking of doing is creating a single table that will hold all searchable information for each category of item (when an item is saved in its respective table, I would copy all searchable information over to my 'Search' table). I would then turn Full Text Search on for that table, and search that table. Does this sound reasonable? Is there a better way? I've never used Full Text Search before, so this is new to me.

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  • Subdomain takes the position of main site in Google search result

    - by user3578586
    We have one domain and one sub-domain. Until last week both of them appear in first page of Google search for very important keyword. Unfortunately Google dropped our main domain from search results. our main site has been in first page for 5 years! About one year ago we build this sub-domain. It simply has been redirected to one of pages of main domain. For solving problem we upload a independent site for sub-domain because we guessed that Google think this is our main page of our site. But problem did not solved. What should we do? our main site offer main services and we we want that will be on first page. Shout down sub-domain? Redirect to main site? Put the link of our main site in sub-domain? (About one year ago we put link of this sub-domain to our main site. Google indexed it and continuously bring that to top.) changing in robots.txt ....

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  • Activity Stream

    [Do you tweet? Follow us on Twitter @matthawley and @codeplex] We deployed a new version of the CodePlex website yesterday.  Redesigned Home Page with Activity Stream In CodePlex we continuously look for ways to provide our users with the most recent and relevant information they are seeking. It is with this in mind that we released our latest feature, the home page activity stream. The activity stream showcases events taking place on projects you are a part of as well as projects you are following. There are many different events in the system that causes activities to be created, including starting a discussion, creating a work item etc.   All the functionality that was available on the former home page, such as creating a new project or finding a project that needs help, is available on the right side of the new home page.     The CodePlex team values your feedback. We are frequently monitoring Twitter, our Discussions, and Issue Tracker. If you have not visited the Issue Tracker recently, please take a few minutes to suggest or vote on a feature you would like to see implemented.

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  • Google Analytics custom variables and how are they recorded?

    - by mrtsherman
    I have been asked to add GA custom variable tracking to my company's website. The company website uses server side includes, so making modifications to the tracking code happens identically everywhere. Maintenance is therefore a headache. Also, GA takes about twenty-four hours for custom variables to start showing up in reports and that makes troubleshooting a headache. So if you have custom variables // visitor level tracking, id = 12345 _gaq.push(['_setCustomVar', 1, 'id', '12345', 1]); // page level tracking, email = [email protected] _gaq.push(['_setCustomVar', 1, 'email', '[email protected]', 1]); The marketing people want the following out of this: User visits site and we record a unique id for them. Whenever they return this id will be used in GA. User signs up for our newsletter on page X and we record their email address. Whenever they return this email address is used in GA. Now a big problem for me is that I don't use GA and the marketing people don't use custom variables. So we don't actually know how this will work. Do I want Page, Session or Visitor level tracking? What happens because the same GA code is used on every page? If they visit the email sign up form and we record the email address, but then they go somewhere else where email is nonexistent will the value get 'overwritten.' Sorry for the long question, but there are a lot of unknowns for a GA noob.

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  • Help with URL Rewrite

    - by bodesam
    This is the first time i'm doing this and have been doing some research on it. I have a page that selects some info from a database and displays it with a link to a second page that uses the result to query the database, something like this: $sel=mysql_query("select id, title from thetable "); while($row=mysql_fetch_array($sel)) { $id=$row['id']; $title=$row['title']; echo "<a href='more.php?id=$id'>$title</a>"; } The issue is, in the more.php page, instead of more.php?id=5 to show in the address bar, I want something like more/title Secondly, as it obtains in most sites, I want the link on the referring page to show this friendly url on mouse hover not the more.php?id=5 And I notice in most sites some words like 'a', 'and', 'the' etc are usually removed from the url title(even if there originally), moreover how does one handle the situation where more than one record have the same title. How does one go about achieving this url rewrite with htaccess or whatever method is used. Thanks.

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  • Is it possible to use two different ErrorDocuments for different paths of a website?

    - by tapwater
    this is my first question on stackexchange and it might be a bit confusing. I currently run PmWiki (sorry, you'll have to google it, new user can only have 2 hyperlinks) at mydomain.com/pmwiki. I have a 404 page and .htaccess set up in my site's document root for 404 pages regarding anything that doesn't have to do with my wiki. By default, PmWiki handles URLs a little confusingly so I had to use this in order to get it to look like mydomain.com/pmwiki/Namespace/Page I had to create a .htaccess in /pmwiki to remove parts of the URL. PmWiki also has a custom 404 (Site/PageNotFound) page that has stopped working, now my site uses the /404.htm page. I noticed this when trying to install this "recipe" to enable case-insensitive URLs. Currently the only way to access Site/PageNotFound is by actually linking to it, and, if you read how that recipe seems to function, this is an issue. Currently mydomain.com/pmwiki/blahblah and mydomain.com/pmwiki/legitimate_namespace_but_lowercase/legitimate_lowercase_page_name both direct to mydomain.com/404.htm. I have to admit I'm very confused, and I apologize if I was unclear in any of this, but I could definitely use some help. Thanks!

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  • Should my web app have its own domain name?

    - by Daniero
    I'm going to get a domain name for my personal web page. It will contain my blog, photos and other personal stuff, plus different web apps and tools that I'm working on. I have put quite a lot of work in one of the web apps, and I think it has great potential. It covers a niche in a way that no other page has done before and I can see great possibilities to expand it. Via links to webstores and ads I think it could even make some money, and if I play it right this could be the place to go when you're into the specific niche that it covers (sorry for being so vague). My question is, would it be better for a (potentially great) web app like this to have its own domain name (nameofmyapp.com) instead of being a subpage of my personal page (mypersonaldomain.com/nameofmyapp)? Is the web app more likely to be found by others, via Google etc, with its own domain name? Could a "subpage" give more attention (visitors) to my personal page? pros and cons?

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  • .Net DataGridView "Index 0 does not have a value."

    - by Ben
    I am having trouble with a DataGridView. I have a collection of 3 Items bound to the grid, when trying to delete one of the items and reload the grid. If have code of If (dlg.ShowDialog() = DialogResult.OK) Then 'Show dialog with grid on it End If On the opened dialog, I delete an item from the grid (which should in turn, delete the item from the collection, and re-load the grid), and it returns to the "If (dlg.show..." line, with the error of "A first chance exception of type 'System.IndexOutOfRangeException' occurred in System.Windows.Forms.dll Additional information: Index 2 does not have a value. " (I have break into debugger set on for common language runtime errors) I can understand this error if i were trying to access any cells, row or columns, but im not, and then I would expect the exception to stop on the line of code that is trying to access this grid data, not the "If (dlg.ShowDialog()... " line Any ideas? Cheers

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  • Core Data managed object context thread synchronisation

    - by Ben Reeves
    I'm have an issue where i'm updating a many-to-many relationship in a background thread, which works fine in that threa, but when I send the object back to the main thread the changes do not show. If I close the app and reopen the data is saved fine and the changes show on the main thread. Also using [context lock] instead of a different managed object context works fine. I have tried NSManagedObjectContext: - (BOOL)save:(NSError **)error; - (void)refreshObject:(NSManagedObject *)object mergeChanges:(BOOL)flag; at different stages throughout the process but it doesn't seem to help. My core data code uses the following getter to ensure any operations are thread safe: - (NSManagedObjectContext *) managedObjectContext { NSThread * thisThread = [NSThread currentThread]; if (thisThread == [NSThread mainThread]) { //Main thread just return default context return managedObjectContext; } else { //Thread safe trickery NSManagedObjectContext * threadManagedObjectContext = [[thisThread threadDictionary] objectForKey:CONTEXT_KEY]; if (threadManagedObjectContext == nil) { threadManagedObjectContext = [[[NSManagedObjectContext alloc] init] autorelease]; [threadManagedObjectContext setPersistentStoreCoordinator: [self persistentStoreCoordinator]]; [[thisThread threadDictionary] setObject:threadManagedObjectContext forKey:CONTEXT_KEY]; } return threadManagedObjectContext; } } and when I pass object between threads i'm using -(NSManagedObject*)makeSafe:(NSManagedObject*)object { if ([object managedObjectContext] != [self managedObjectContext]) { NSError * error = nil; object = [[self managedObjectContext] existingObjectWithID:[object objectID] error:&error]; if (error) { NSLog(@"Error makeSafe: %@", error); } } return object; } Any help appreciated

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  • Need help with Android TableLayout alignment

    - by Ben L.
    I'm trying to build a calculator layout using TableLayout, but the last two rows aren't aligning with the rest of the layout. Is there something wrong with my layout XML? What I'm trying to do would be easier to accomplish in HTML (<td> with colspan or rowspan), so should I try converting this into a WebView? Code is as follows: (Screenshot) <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <EditText android:id="@+id/EditText01" android:layout_height="wrap_content" android:layout_width="fill_parent" /> <TableLayout android:layout_height="fill_parent" android:layout_width="fill_parent" android:stretchColumns="*"> <TableRow android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1"> <Button android:id="@+id/Button08" android:textSize="16pt" android:text="^" android:layout_weight="1" android:layout_height="fill_parent" android:layout_width="wrap_content" /> <Button android:id="@+id/Button09" android:text="÷" android:textSize="16pt" android:layout_height="fill_parent" android:layout_weight="1" android:layout_width="wrap_content" /> <Button android:id="@+id/Button10" android:text="×" android:textSize="16pt" android:layout_height="fill_parent" android:layout_weight="1" android:layout_width="wrap_content" /> <Button android:id="@+id/Button11" android:textSize="16pt" android:text="-" android:layout_weight="1" android:layout_height="fill_parent" android:layout_width="wrap_content" /> </TableRow> <TableRow android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="2"> <LinearLayout android:layout_width="wrap_content" android:layout_height="fill_parent" android:orientation="vertical" android:layout_weight="1"> <Button android:id="@+id/Button01" android:text="7" android:textSize="16pt" android:layout_weight="1" android:layout_height="wrap_content" android:layout_width="fill_parent" /> <Button android:layout_height="wrap_content" android:textSize="16pt" android:text="4" android:id="@+id/Button05" android:layout_weight="1" android:layout_width="fill_parent" /> </LinearLayout> <LinearLayout android:layout_height="fill_parent" android:orientation="vertical" android:layout_weight="1" android:layout_width="fill_parent"> <Button android:id="@+id/Button02" android:layout_height="wrap_content" android:text="8" android:textSize="16pt" android:layout_weight="1" android:layout_width="fill_parent" /> <Button android:layout_height="wrap_content" android:textSize="16pt" android:text="5" android:id="@+id/Button06" android:layout_weight="1" android:layout_width="fill_parent" /> </LinearLayout> <LinearLayout android:layout_height="fill_parent" android:orientation="vertical" android:layout_weight="1" android:layout_width="fill_parent"> <Button android:id="@+id/Button03" android:text="9" android:textSize="16pt" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1" /> <Button android:textSize="16pt" android:text="6" android:id="@+id/Button07" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1" /> </LinearLayout> <Button android:id="@+id/Button04" android:text="+" android:textSize="16pt" android:layout_height="fill_parent" android:layout_width="fill_parent" android:layout_weight="1" /> </TableRow> <TableRow android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="2"> <LinearLayout android:layout_width="wrap_content" android:layout_height="fill_parent" android:orientation="vertical" android:layout_weight="2"> <LinearLayout android:layout_weight="1" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content"> <Button android:id="@+id/Button02" android:textSize="16pt" android:layout_weight="1" android:layout_width="fill_parent" android:layout_height="fill_parent" android:text="1" /> <Button android:textSize="16pt" android:id="@+id/Button06" android:layout_weight="1" android:layout_width="fill_parent" android:layout_height="fill_parent" android:text="2" /> </LinearLayout> <Button android:id="@+id/Button01" android:layout_height="wrap_content" android:textSize="16pt" android:layout_weight="1" android:layout_width="fill_parent" android:text="0" /> </LinearLayout> <LinearLayout android:layout_width="wrap_content" android:layout_height="fill_parent" android:orientation="vertical" android:layout_weight="1"> <Button android:id="@+id/Button03" android:textSize="16pt" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1" android:text="3" /> <Button android:textSize="16pt" android:id="@+id/Button07" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1" android:text="." /> </LinearLayout> <Button android:id="@+id/Button04" android:textSize="16pt" android:layout_height="fill_parent" android:layout_width="fill_parent" android:layout_weight="1" android:text="=" /> </TableRow> </TableLayout> </LinearLayout>

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  • Usage of IcmpSendEcho2 with an asynchronous callback

    - by Ben Voigt
    I've been reading the MSDN documentation for IcmpSendEcho2 and it raises more questions than it answers. I'm familiar with asynchronous callbacks from other Win32 APIs such as ReadFileEx... I provide a buffer which I guarantee will be reserved for the driver's use until the operation completes with any result other than IO_PENDING, I get my callback in case of either success or failure (and call GetCompletionStatus to find out which). Timeouts are my responsibility and I can call CancelIo to abort processing, but the buffer is still reserved until the driver cancels the operation and calls my completion routine with a status of CANCELLED. And there's an OVERLAPPED structure which uniquely identifies the request through all of this. IcmpSendEcho2 doesn't use an OVERLAPPED context structure for asynchronous requests. And the documentation is unclear excessively minimalist about what happens if the ping times out or fails (failure would be lack of a network connection, a missing ARP entry for local peers, ICMP destination unreachable response from an intervening router for remote peers, etc). Does anyone know whether the callback occurs on timeout and/or failure? And especially, if no response comes, can I reuse the buffer for another call to IcmpSendEcho2 or is it forever reserved in case a reply comes in late? I'm wanting to use this function from a Win32 service, which means I have to get the error-handling cases right and I can't just leak buffers (or if the API does leak buffers, I have to use a helper process so I have a way to abandon requests). There's also an ugly incompatibility in the way the callback is made. It looks like the first parameter is consistent between the two signatures, so I should be able to use the newer PIO_APC_ROUTINE as long as I only use the second parameter if an OS version check returns Vista or newer? Although MSDN says "don't do a Windows version check", it seems like I need to, because the set of versions with the new argument aren't the same as the set of versions where the function exists in iphlpapi.dll. Pointers to additional documentation or working code which uses this function and an APC would be much appreciated. Please also let me know if this is completely the wrong approach -- i.e. if either using raw sockets or some combination of IcmpCreateFile+WriteFileEx+ReadFileEx would be more robust.

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  • Problem running iPhone application on iPhone from Xcode (and in Instruments)

    - by Ben
    Hi I have a problem running one application on the iPhone from Xcode (or Instruments). When I try to run the app I get the error message Failed to upload XXX.app in the bottom left corner of Xcode. The strange thing is it actually uploaded the app to the iPhone but it doesn't start it (after this I can start the app by hand on the iPhone). So without being able to start the app from Xcode or instruments I have no chance of debugging/performance testing. Any advice on what might be going wrong here? The iPhone console shows me this: Thu Oct 1 14:25:18 unknown mobile_installationd[1976] <Error>: 00808e00 install_embedded_profile: Skipping the installation of the embedded profile Thu Oct 1 14:25:23 unknown SpringBoard[25] <Warning>: Reloading and rendering all application icons. Other applications work fine. I've tried this on two iPhones (both 3.1) with the same result. I am running Xcode 3.2 on SnowLeopard. Regards

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  • ASP.NET MVC returning ContentResult using Ajax form - how to preserve whitespace?

    - by Ben
    In my application users can enter commands that are executed on the server. The results are added to a session object. I then stuff the session object into ViewData and add it to a textarea. When done with a standard HTML form whitespace is preserved. However, when I swap this out for an ajax form (Ajax.BeginForm) and return the result as ContentResult, the whitespace is removed. Controller Action: [HttpPost] public ActionResult Execute(string submitButton, string command) { if (submitButton == "Clear") { this.CurrentConsole = string.Empty; } if (submitButton == "Execute" && !string.IsNullOrEmpty(command)) { var script = new PSScript() { Name = "Ad hoc script", CommandText = command }; this.CurrentConsole += _scriptService.ExecuteScript(script); } if (Request.IsAjaxRequest()) { return Content(this.CurrentConsole, "text/plain"); } return RedirectToAction("Index"); } View: <fieldset> <legend>Shell</legend> <%=Html.TextArea("console", ViewData["console"].ToString(), new {@class = "console", @readonly = "readonly"})%> <% using (Ajax.BeginForm("Execute", new AjaxOptions { UpdateTargetId = "console", OnBegin = "console_begin", OnComplete = "console_complete"})) { %> <input type="text" id="command" name="command" class="commandtext" /> <input type="submit" value="Execute" class="runbutton" name="submitButton" /> <input type="submit" value="Clear" class="runbutton" name="submitButton" /> <%} %> </fieldset> How can I ensure that whitespace is preserved? When I inspect the response in FireBug it looks like the whitespace is transmitted, so can only assume it has something to do with the way in which the javascript handles the response data.

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  • rich:fileupload inside rich:modalpanel doesnt send uploadcomplete event

    - by Ben
    I'm trying to use the rich:fileupload from inside a rich:modalpanel component. The problem is that, when inside modalpanel, fileupload doesn't doesnt start the fileuploadeventlistener method. The same fileupload component works fine outside of modalpanel. (Although it doesn't rerender the components I ask it to, but that's another topic.) I could find this issue and similar ones on search for "fileupload modalpanel" but no answers. My code is added from a backing bean, but this illustrates it: <a4j:form id="overlayForm"> <rich:modalPanel> <rich:fileupload fileuploadeventlistener="#{mrBean.uploadCompleteListener}"/> </rich:modalPanel> </a4j:form>

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