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JSP:Include not rendering the page correctly

- by sreekanth

am having trouble with including a jsp page with tag. This is what is happening. I making changes to a portlet application running on Websphere 7 server. This is the hierarchy of the jsp pages. blankPage.jsp --bookingViewTabs.jsp -- availableRooms.jsp meaning blankPage is included in bookingViewTabs which is inturn included in availableRooms.jsp I have 2 problems with this. (1). The blankPage.jsp does not render correctly on the screen. It gets cutoff (2). The other is in blankPage.jsp there is a form called "guestProfileSearchResultsFormId". this form has several hidden fields for data. example, "guestId" which is a child of that form and can be accessed formname.fieldname, but when i include that page into another jsp as the first include(there are several includes on the page) under the another form tag, the form field is not being rendered as a child of the form, but as a sibling of the form. If i change the order and include some other page and include this, it is working as it is supposed to have. meaning with children intact. I don't understand this behavior. I HAVE ATTACHED A GIF IMAGE OF WHAT I SEE ON THE BROWSER Any help is greatly appreciated. Thanks in advance

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What is the performance impact of CSS's universal selector?

- by Bungle

I'm trying to find some simple client-side performance tweaks in a page that receives millions of monthly pageviews. One concern that I have is the use of the CSS universal selector (*). As an example, consider a very simple HTML document like the following: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title>Example</title> <style type="text/css"> * { margin: 0; padding: 0; } </head> <body> <h1>This is a heading</h1> <p>This is a paragraph of text.</p> </body> </html> The universal selector will apply the above declaration to the body, h1 and p elements, since those are the only ones in the document. In general, would I see better performance from a rule such as: body, h1, p { margin: 0; padding: 0; } Or would this have exactly the same net effect? Essentially, what I'm asking is if these rules are effectively equivalent in this case, or if the universal selector has to perform more unnecessary work that I may not be aware of. I realize that the performance impact in this example may be very small, but I'm hoping to learn something that may lead to more significant performance improvements in real-world situations. Thanks for any help!

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odd nullreference error at foreach when rendering view

- by giddy

This error is so weird I Just can't really figure out what is really wrong! In UserController I have public virtual ActionResult Index() { var usersmdl = from u in RepositoryFactory.GetUserRepo().GetAll() select new UserViewModel { ID = u.ID, UserName = u.Username, UserGroupName = u.UserGroupMain.GroupName, BranchName = u.Branch.BranchName, Password = u.Password, Ace = u.ACE, CIF = u.CIF, PF = u.PF }; if (usersmdl != null) { return View(usersmdl.AsEnumerable()); } return View(); } My view is of type @model IEnumerable<UserViewModel> on the top. This is what happens: Where and what exactly IS null!? I create the users from a fake repository with moq. I also wrote unit tests, which pass, to ensure the right amount of mocked users are returned. Maybe someone can point me in the right direction here? Top of the stack trace is : at lambda_method(Closure , User ) at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext() at ASP.Index_cshtml.Execute() Is it something to do with linq here? Tell me If I should include the full stack trace.

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Help with rendering the Mandelbrot set in Java

- by SDLFunTimes

I wrote an implementation of the Mandelbrot set in Java using a JComponent but I'm getting strange results when I render it. Besides that everything compiles right. I'm just not for sure what I'm doing wrong with it. Any code review also would be appreciated. My source is posted on pastebin since it would take up too much room here: JMandelbrot.java Mandelbrat.java

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Is XSLT worth investing time in and are there any actual alternatives?

- by Keeno

I realize this has been a few other questions on this topic, and people are saying use your language of choice to manipulate the XML etc etc however, not quite fit my question exactly. Firstly, the scope of the project: We want to develop platform independent e-learning, currently, its a bunch of HTML pages but as they grow and develop they become hard to maintain. The idea: Generate up an XML file + Schema, then produce some XSLT files that process the XML into the eLearning modiles. XML to HTML via XSLT. Why: We would like the flexibilty to be able to easy reformat the content (I realize CSS is a viable alternative here) If we decide to alter the pages layout or functionality in anyway, im guessing altering the "shared" XSLT files would be easier than updating the HTML files. So far, we have about 30 modules, with up to 10-30 pages each Depending on some "parameters" we could output drastically different page layouts/structures, above and beyond what CSS can do Now, all this has to be platform independent, and to be able to run "offline" i.e. without a server powering the HTML Negatives I've read so far for XSLT: Overhead? Not exactly sure why...is it the compute power need to convert to HTML? Difficult to learn Better alternatives Now, what I would like to know exactly is: are there actually any viable alternatives for this "offline"? Am I going about it in the correct manner, do you guys have any advice or alternatives. Thanks!

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GSP rendering programatically

- by tuler

Suppose I have a gsp snippet stored in my database. How do I programatically merge it with a data model to produce a string.

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dojo 1.4: difference in tree html rendering

- by Fell

Hi, I have written an application using dojo 1.3 in which i have used the dijit tree. I am loading the tree with json data specified in the store which is in turn used by the tree model. In the 1.3 version the tree elements pick up the id directly from the json data.However in 1.4 the tree elements have their own id which is something like dijit__treenode_4. The id's that I have specified in json are unique and im not able to understand why these are not being used anymore. Please help me understand how this functionality has changed and how I can override the automatic id generation.. Thanks in advance, Fell

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page.insert_html not rendering partial correctly

- by mathee

The following is in the text_field. = f.text_field :title, :size => 50, :onchange => remote_function(:update => :suggestions, :url => {:action => :display_question_search_results}) The following is in display_questions_search_results.rjs. page.insert_html :bottom, 'suggestions', :partial => 'suggestions' Whenever the user types, I'd like to search the database for any tuples that match the keywords in the text field. Then, display those results. But, at the moment, _suggestions.haml only contains the word "suggestions!!". But, instead of seeing "suggestions!!" in the suggestions div tag, I get: try { Element.insert("suggestions", { bottom: "suggestions!!" }); } catch (e) { alert('RJS error:\n\n' + e.toString()); alert('Element.insert(\"suggestions\", { bottom: \"suggestions!!\" });'); throw e } I've been trying to find out why this is being done, but the previously asked questions I found seem more complicated than what I'm doing...

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Make an empty DIV height and width of its container

- by Olly F

My HTML currently contains a background image that stretches with the viewport. Within that, I plan to place a div that stretches to the height and width of the viewport and has black background colour at 50% opacity. I've set the div to be 100% width and height. The div is not stretching and I can't figure out why! HTML: <!DOCTYPE HTML> <html lang="en"> <head> <title>Tester</title> <meta charset="UTF-8"/> <style type="text/css"> html { background: url(http://cjpstudio.com/wp-content/uploads/2011/12/cityrock1.jpg) no-repeat center center fixed; -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover; } #background-color { width: 100%; height: 100%; background-color: #000000; } </style> </head> <body> <div id="background-color"> </div> </body>

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Mozilla Firefox border rendering

- by zA

Hi, I've come across a strange thing in Firefox, which has become a problem to me. It seems that Firefox renders borders thinner than other browsers. For example I have just a simple empty div element, and nothing else on the webpage, with a border set to width:3px. In all other browsers, such as IE, Opera, Chrome and Safari, the width looks the same and is in fact 3px wide. But in Firefox I noticed that the border width seemed thinner. So I checked the border width with Firebug, under the Computed tab - Box model. And yes as I suspected, the rendered border in Firefox is thinner. The border width that Firefox rendered is actually 2.2px and not the expected 3px. This small difference with Firefox completely messes up my design. Has anyone else noticed this? Does anyone have a solution for this? Thanks in advance!

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Haml Inherit Templates

- by kjfletch

I'm using Haml (Haml/Sass 3.0.9 - Classy Cassidy) stand-alone to generate static HTML. I want to create a shared layout template that all my other templates inherit. Layout.haml %html %head %title Test Template %body .Content Content.haml SOMEHOW INHERIT Layout.haml SOMEHOW Change the title of the page "My Content". %p This is my content To produce: Content.html <html> <head> <title>My Content</title> </head> <body> <div class="Content"> <p>This is my content</p> </div> </body> </html> But this doesn't seem possible. I have seen the use of rendering partials when using Haml with Rails but can't find any solution when using Haml stand-alone. Having to put the layout code in all of my templates would be a maintenance nightmare; so my question is how do I avoid doing this? Is there a standard way to solve this problem? Have I missed something fundamental?

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EllipseGeometry is not rendering in Silverlight

- by Mark Nelson

I'm trying to draw a circle in WP7 Silverlight using EllipseGeometry instead of Ellipse. The sample XAML in MSDN does not display anything on the canvas in Visual Studio. If I run the app, it does display in the emulator. <Canvas> <Path Fill="Gold" Stroke="Black" StrokeThickness="1"> <Path.Data> <EllipseGeometry Center="50,50" RadiusX="50" RadiusY="50" /> </Path.Data> </Path> </Canvas> Any ideas what is happening?

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Possible iphone animation timing/rendering bug?

- by David

Hi all, I have been working on an iphone apps for several weeks. Now I encounter an animation problem that I can't figure out how to resolve. Mayhbe you can help. Here is the details (a little long, bear with me): Basically the effect I want to achieve is, when user click a button, a loading view pops up, hiding the whole screen; and then the apps does a lot of heavy computation, which takes a few seconds. Once the computation is done, soem result views (something likes checkers on a checker board) are rendered under the loading view. Once all result views are rendered, I used animation animation to remove the loading view nand show the result views to the user. Here is what I do: when user click a button, run this code: [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:1.0]; [UIView setAnimationBeginsFromCurrentState:YES]; [UIView setAnimationTransition:UIViewAnimationTransitionCurlDown forView:self.view cache:YES]; [UIView setAnimationDelegate:self]; [UIView setAnimationDidStopSelector:@selector(loadingViewInserted:finished:context:)]; // use a really high index number so it will always on top [self.view insertSubview:loadingViewController.view atIndex:1000]; [UIView commitAnimations]; In the "loadingViewInserted" function, it calls another function doing the heavy computation work. Once the computation is done, a lot of result views (like checkers on a checker board) are rendered under the loading view. for(int colIndex = 1; colIndex <= result.columns; colIndex++) { for(int rowIndex = 1; rowIndex <= result.rows; rowIndex++) { ResultView *rv = [ResultView resultViewWithData:results[colIndex][rowIndex]]; [self.view addSubview:rv]; } } Once all result views are added, following animation is invoked to remove the loading view: [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:1.0]; [UIView setAnimationBeginsFromCurrentState:YES]; [UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view cache:YES]; [loadingViewController.view removeFromSuperview]; [UIView commitAnimations]; By doing this, most of the time (maybe 90%) it does exactly what I want. However, sometime I see some weird result: the loading view shows up first as expected, then before it disappears, some result views, which suppose to be under the loading view, suddenly appears on top of the loading view; and some of them are partial rendered. And then the loading view curled up, and everything looks normal again. The weird situation only lasts for less than a second, but already bad enough to screw up the UI. I have tried all different kinds of thing to fix this (using another thread to remove the loading view, make the loading view non-transparent), but none of them works. The only thing that makes a little better is, I hide all the result views first; after the last animation finished, in its call back, unhide all result views. But this loses the nice effect that when curling up the loading view, the results are already there. At this point, I really think this is a bug in iphone (I compile it with OS 3.0) OS. Or maybe you can point out what I have done wrong (or could do differently). (thanks for finishing this long post, :-) )

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Trouble with Canvas rendering in Safari/Opera

- by Jon

Been banging my head against this one for a while, and figured I'd turn to the experts for some advice. I've made a jQuery snippet that grabs the values from a table and plots them in a line graph on a canvas element (also generated by the JS). All's well in Firefox and Chrome, but Safari and Opera aren't displaying the plotted points. I've reviewed in Firebug, Web Inspector debugger, JSLint, and checked the markup with the w3 validator, but still can't find anything glaringly obvious. Any chance one of you guys could help me out? Here's a page with a simplified example: http://bit.ly/aAshPQ Thanks!

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What is the point of heightmaps?

- by Jake Petroules

I've been pondering this question awhile now... many 3d engines support advanced terrain rendering using quadtrees, LOD... all the features you expect. But every engine I've seen loads height data from heightmaps... grayscale bitmaps. I just can't understand how this is useful - each point in a heightmap can have one of 256 values. But what if you wanted to model Mt. Everest? with detail of 1 meter, or even greater? That's far outside the range of 256. Of course I understand that you can implement your own terrain format to achieve this, but I just can't see why heightmaps are so widely used despite their great limitations.

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OpenGL ES 2.0 Rendering with a Texture

- by Kyle

The iPhone SDK has an example of using ES 2.0 with a set of (Vertex & Fragment) GLSL shaders to render a varying colored box. Is there an example out there on how to render a simple texture using this API? I basically want to take a quad, and draw a texture onto it. The old ES 1.1 API's don't work at all anymore, so I'm needing a bit of help getting started. Most shader references talk mainly about advanced shading topics, but I'm really unsure about how to tell the shader to use the bound texture, and how to reference the UV's. Thanks!

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Problem with JQuery swapImage();

- by VUELA

Hello!~ On my articles page (http://www.adrtimes.squarespace.com/articles) I have each entry start with an image that changes on rollover. This is working fine. However, on my homepage (http://www.adrtimes.squarespace.com), I am loading in the 2 most recent articles that are not categorized as video, and the 2 most recent articles that are tagged as video. I am using jQuery load() to pull in the content from the articles page. Everything works ok with that except the swapImage rollovers on the homepage. i tried including the swapImage function as callbacks but only one group or the other will rollover properly, not both groups of content. I'm not sure what the problem is!! Here is the code: <script type="text/javascript">  </script> And here is a sample of the html for the images in an article entry: <a href="/articles/2010/5/6/article-title-goes-here.html"><img class="swapImage {src: '/storage/post-images/Sample2_color.jpg'}" src="/storage/post-images/Sample2_bw.jpg" /></a>

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Notepad++ tabbing out of tags, autocomplete

- by Matt

I'm trying to learn a little HTML. Everyone says to use Notepad++ over notepad. I have autocomplete on. My question: When I type my opening tag and Notepad++ then puts"""" closing tag, how do I "jump" out of the tag when I'm done typing? If I tab or hit enter, I'm still stuck before the closing tag. I can use my arrow keys, but if I'm going to do that, I would rather just type the closing tags. Also if I have an UL of 10 items, and I want to change it to an OL, how do I select both the opening and closing tags so I may edit them at the same time? Thanks PS I wasn't able to post the HTML tags.

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opacity in ie using absolutely positioned divs not working

- by camomileCase

I've been banging my head against the wall for a few hours how trying to sort this out. I'm trying to position one div on top of another for the purpose of fading one in on top of the other. The divs will have an image and some other html in them. I cannot get opacity to work in ie8. I've simplified my html as much as possible: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <style> * { margin: 0; padding: 0; } .carousel-container { position: relative; } .carousel-overlay { position: absolute; } #carousel-container-a { opacity: 1; -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)"; filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=100); } #carousel-container-b { opacity: 0; -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=0)"; filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=0); } h1 { font-size: 100px; } </style> </head> <body> <div id="carousel-container-a" class="carousel-container"> <div class="carousel-overlay" style="left: 10px; top: 10px;"> <h1 style="color: black;">Showcase</h1> </div>  </div> <div id="carousel-container-b" class="carousel-container"> <div class="carousel-overlay" style="left: 20px; top: 20px;"> <h1 style="color: red;">Welcome</h1> </div>  </div> </body> </html> Why doesn't the opacity work? How can I make it work?

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opengl - Rendering multiple cubes

- by opiop65

I have this code (Doesn't work at all) static void initGl() { glViewport(0, 0, Display.getWidth(), Display.getHeight()); glMatrixMode(GL_PROJECTION); glLoadIdentity(); GLU.gluPerspective(45.0f, Display.getWidth() / Display.getHeight(), 1.0f, 1000.0f); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glClearColor(0.0f, 0.0f, 0.0f, 0.0f); glClearDepth(1.0f); glDepthFunc(GL_LEQUAL); glEnable(GL_DEPTH_TEST); glShadeModel(GL_SMOOTH); glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); } public static void renderGL() { glViewport(0, 0, Display.getWidth(), Display.getHeight()); glClearColor(0.0f, 0.0f, 0.0f, 0.5f); glLoadIdentity(); glTranslatef(0.0f, 0.0f, -60.0f); drawCube(); } public static void drawCube() { for (int x = 0; x < 100; x++) { for (int y = 0; y < 100; y++) { for (int z = 0; z < 100; z++) { glBegin(GL_QUADS); glColor3f(1, 0, 0); glVertex3f(-x, -y, z); glVertex3f(x, -y, z); glVertex3f(x, y, z); glVertex3f(-x, y, z); glColor3f(1, 0, 1); glVertex3f(x, -y, -z); glVertex3f(-x, -y, -z); glVertex3f(-x, y, -z); glVertex3f(x, y, -z); glColor3f(1, 1, 1); glVertex3f(-x, y, z); glVertex3f(x, y, z); glVertex3f(x, y, -z); glVertex3f(-x, y, -z); glColor3f(0, 0, 1); glVertex3f(x, -y, z); glVertex3f(-x, -y, z); glVertex3f(-x, -y, -z); glVertex3f(x, -y, -z); glColor3f(1, 1, 0); glVertex3f(x, -y, z); glVertex3f(x, -y, -z); glVertex3f(x, y, -z); glVertex3f(x, y, z); glColor3f(0, 2, 1); glVertex3f(-x, -y, -z); glVertex3f(-x, -y, z); glVertex3f(-x, y, z); glVertex3f(-x, y, -z); glEnd(); } } } All it does it freeze up the program and eventually it will render the red side of the cube. This obviously has to do with gltranslatef, but I don't know why that isn't working. My question is, how do I render multiple cubes at once? Are there any tutorials out there on voxel engines? Sorry for the horrible code, I realize I probably need a array to do this. I'm quite new at opengl.

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how to make shadows for transparent objects using ray tracing in C++/openGL

- by happy face

I'm trying to make a code that cast shadow from trasnparent objects(such as glass) for rendering in 3D I do not have a shadow map and photon mapping yet, and I wanted to know if there is a way to make shadows for transparent materials using ray tracing only. Caustics sounds very hard without photon mapping... I have implemented a simple code in C++ that only makes the shadows black (no matter if the objects are transparent or opaque) Pseudo code would be great, thnx. for(size_t i = 0;i < num; ++i) { if(state_list[i].hit && state_list[i].distance < dist_from_light[i]) { return[i] = BLACK; }

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How can I change a specific website's style?

- by Darthfett

I have a specific website I often use (specifically, http://www.pygame.org/), which has an awful color scheme. I would like to change the color scheme of the site, but I haven't been able to find a good tool for the job. Some basic requirements: It should not be universal to all websites, or affect other websites. I want this to be semi-automatic. I don't want to have to re-define the theme for each page of the site. I want to continue to access the site online (I don't want a local copy of the entire site) Not OS-specific (browser-specific is okay) I am currently using Firefox, but I am also happy with Chrome. There may be some limitations on what is able to be done automatically, as the CSS seems to be embedded in the HTML (and some also in the HTML tags). I would like to remove as much of the green as possible. Is there an existing extension/add-on that does this?

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How to remove an element from opener window viewsource using javascript

- by spj

Hi Step 1 I've two screens one is parent and the other one is child. On click of a button in the parent window the child popup will open. Step 2 On click of a button in child i'm displaying the html(viewsource) of parent window in a textbox(.net) and holding in a hidden variable hdnSource too. Step 3 I've 4 checkboxes in the child window. If the checkbox is not checked, then that part of html should be removed. eg: cbxPersonal, cbxProfessional if cbxProfessional is unchecked I should remove divProfessional from html which is in hdnSource and display in the textbox Can anyone help me to do the 3rd part of coding. Since the html is in the variable, I'm not able to find the div with document.getElementById

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Extra GET Request on META Refresh Redirect (CGI-C)

- by Koray Alkan

I have a form (on page form.html) submitting with POST method to a CGI-C page - let's call it form.cgi - and what form.cgi does is it redirects the user to the previous page (to form.html) with appending query strings using HTTP-EQUIV Refresh META after 5 seconds. However, if I monitor the Web server's access.log although I see the appropriate POST request for form.cgi there is an additional GET request for form.cgi again, after 5 seconds just before redirecting the user to form.html Has anyone faced with such an issue?

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What to Expect From HTML 5

Are your apps ready to take advantage of the new capabilities?

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