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  • MVC design pattern - who loads view initially

    - by enableDeepak
    This query is about MVC design pattern in general and not ASP.net MVC framework I understand in MVC (desktop application): 1. User clicks something in view 2. this is passed on to controller to manage 3. controller makes some changes in Model 4. Model calls method on view which has the logic to refresh UI Questions around these: Q1) Can controller also modify View or Model only updates View? Q2) When screen loads for the first time, there is no Model change. Then, who fetches data from model and populates view? View directly calls Model and populates itself OR controller gets data and passes to view method OR some dummy event is raised at Model which updates View?

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  • "too many threads error" in blackberry OS-4.5

    - by SWATI
    hi in my application i have 20 icons(bitmap fields) on the home screen When i click on any icon an HTTP request is made in a separate thread. I have used invoke later method wherever necessary to take care of multi-threading problems. But still the number of threads goes beyond 16 and an error pops up indicating too many threads error and applications needs to be restarted!! can anybody tell me how to destroy these threads when they are no longer in use. I don't understand why they don't destroy on their own as usually they do.

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  • Rails: How do I run a before_save only if certain conditions are met?

    - by Shpigford
    I have a before_save method that I call that renames an uploaded image. before_save :randomize_file_name def randomize_file_name extension = File.extname(screen_file_name).downcase key = ActiveSupport::SecureRandom.hex(8) self.screen.instance_write(:file_name, "#{key}#{extension}") end That method is part of my Item model. That works great when I create a new item or need to update the image associated with an item...but the problem is that if I need to update an item but NOT the image, the randomize_file_name method still gets run and renames the file in the database (though not the file itself, obviously). So, I'm thinking I need to figure out a way to only run randomize_file_name if a file is included in the form submission...but I'm not sure how to pull that off.

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  • Why isn't this simple program working?

    - by user1445478
    I'm writing a very basic program that aims for the text view to display the phrase "Hello" after a button is pressed on the screen. However, I can't get this program to work; every time I run it, it says that the application has stopped unexpectedly. This is the program I wrote: public class EtudeActivityActivity extends Activity{ TextView tvResponse; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final TextView tvResponse = (TextView) findViewById (R.id.tvResponse); } public void updateTV(View v) { tvResponse.setText("Hello"); } } Also, I inserted an android:onClick = "updateTV" into my main.xml file for the button. Thanks for any help!

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  • Using Beyond Compare for Visual Diff in TortoiseHg

    - by geoff
    I am trying to use Beyond Compare for Visual Diff in TortoiseHg. eg Right click on a modified file in explorer and select Visual Diff from TortoiseHg context menu... BeyondCompare opens but only shows the 'welcome' screen and not the file I want to diff. Am I missing something? I have setup the mercurial.ini file as follows: [extensions] extdiff = [extdiff] cmd.bcomp = C:\Program Files (x86)\Beyond Compare 3\BCompare.exe opts.bcomp = /ro [tortoisehg] vdiff = bcomp [merge-tools] bcomp.executable = C:\Program Files (x86)\Beyond Compare 3\BComp bcomp.args = $local $other $base $output bcomp.priority = 1 bcomp.premerge = True bcomp.gui = True [ui] merge = bcomp

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  • interface builder breaks on dual display

    - by madmik3
    Hi, I frequently connect and disconnect my laptop from a secondary display. Additionally I work in a small group that uses svn to manage xib files. It seems that if you drag a UIView display into a secondary display in interface builder and save the xib then either disconnect that display or open it on a computer with a secondary display in a different postion (left v right of the screen for example) then the view can't be seen/closed/moved. I've found no work around other than attaching a secondary display in the same position. This can be a real pain. Has anyone found a solution to this? thanks.

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  • How to make some simple GUI controls?

    - by daniels
    I need to make a DirectX or OpenGL app and i will need a custom GUI for that. I think a button, a input text box, a list box (that will need a scroll bar as there will be more items that can fit on the screen) and a slider control will be enough. I know about CeGUI framework but i just don't like it, way too many XML files for my taste. My question is where should i start in learning how to do this custom GUI controls, are there any tutorial available or any material that could get me started? I haven't done a GUI contol myself before.

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  • changing window.location without triggering refresh

    - by jdwyah
    I have an AJAX form that submits GET requests. Because these are all GET requests these should be easily bookmark-able. Preferably I'd make my Ajax request, update the screen and then update window.location.href to be the URL for the new page. Unfortunately this reloads the page. Is there any way I can get around this? Basically I'd like the URL bar to be a permalink bar, but it needs to be able to change to keep up with the state of the page. window.location.hash is no good because that doesn't get sent to the server.

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  • iOS : is it possible to open previous viewController after crashing and re-launch app?

    - by Nitin Gohel
    How to achieve this stuff below? Please give me some guidance for it. I describe my issue below. When I tap home button and remove app from tray and while I am opening app I get the login screen. I know how to use NSUserDefaults well. But my issue is that when I navigate 3rd or 4th viewController and I press Home Button and remove app from tray, Then whenever I open app than I want to open with last open viewController. Also same when my app is Crashing and I am opening it again then I want to open app with last open viewController state. So I just want to know that is that possible or not? If yes, then please guide me how to achieve this stuff. Thank you

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  • CSS issue with margin: auto

    - by user1702273
    Hi am having an issue with the margin auto of my website where i have a wrapper div with the width set to 1000px and the margins top and bottom to 0 and left and right to auto. I have a navigation menu in the side bar, where i used java script to replace the same div with different tables. when i click a link in the menu the wrapper shifts right some px and the comes to original, I don't want that action i want the wrapper to be static and not to vary at any time. how can i achieve that. when i set the margin to just 0, so problem with positioning. But i want the wrapper to be centered. Here is my css code: body { background-color:#E2E3E4; color:#333; margin:0; padding:0; font-size: 12px; } #wrapper { width:1000px; margin:0 auto; margin-bottom:10px; } #header1 { width:1000px; height:44px; margin:0 auto; background-color:#ED6B06; } #header2 { width:1000px; height:40px; margin:0 auto; border-bottom:1px solid #EDE9DE; } #header3 { width:1000px; height:40px; margin:0 auto; border-bottom:1px solid #EDE9DE; } #header2 p { margin:0 auto; font-size:20pt; color: #364395; font-smooth: auto; margin-left:15px; margin-top:5px; } #welcome { width:600px; float:left; padding:10px; margin:0 auto; } #status{ margin:0 auto; width:50px; float:right; padding:10px; margin-top:3px; margin-right:15px; } #content { width:780px; float:right; } #sidebar { width:150px; margin-top:15px; margin-left:10px; float:left; border-right:1px solid #EDE9DE; margin-bottom:25px; } #footer { clear:both; margin:0 auto; width:1000px; height:44px; border-top:1px solid #EDE9DE; } HTML: <html> <head> <link rel="stylesheet" type="text/css" href="style/style.css" media="screen" /> <title>Pearson Schools Management Portal</title> </head> <body id="home"> <div id="wrapper"> <?php include('includes/header1.php'); ?> <?php include('includes/header2.php'); ?> <?php include('includes/header3.php'); ?> <div id="content"> <h2>Welcome to Portal!</h2> </div> <!-- end #content --> <?php include('includes/sidebar.php'); ?> <?php include('includes/footer.php'); ?> </div> <!-- End #wrapper --> <link rel="stylesheet" type="text/css" media="screen" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/themes/base/jquery-ui.css"> <script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script> <script type="text/javascript" src="http://jzaefferer.github.com/jquery-validation/jquery.validate.js"></script> <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.min.js"></script> <?php include('scripts/index_data.js'); ?> </body>

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  • In MS Access is there a way to allow forms to update while maintaning Read Only

    - by Alex
    I have several forms linked tables via queries. The form pull data such as sales and ratios by selecting a product from the main's form's combo box. I am however having to issues: 1- I would ultimately prefer the combo box to be a free entry; however by just entering in the box and hitting enter (not a button called “enter on a screen” which would initiate recalcs, just normal enter), while it does bring the new information in sub-forms it also changes the information in the original table. If I make the table read only that it just doesn't allow the form to work by saying that the table is read only. 2- The same Read only issue occurs when another user with read only rights tries to use the database. I understand that ready only is functioning as intended, however I am wondering if there is way to make some functions work while disallowing the updating. I am unfortunately learning on the go, so go easy plz. Thank you

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  • Drupal does not recognize my website has been installed

    - by Marcos Buarque
    After a successful Drupal install, I was trying to follow the security recommendations and reverted the settings.php file to 444 permissions (read, read, read). Then, all of a sudden, right after doing that, Drupal does not recognize the installation process was completed. It went back to the install screen. Worst of all. I did chmod back to 666 (write, write, write) but it does not work any more. When I move forward as if I was going to install Drupal again, he tells me he does not have permissions to create the files folder under sites/default... But since the installation has already been completed... the files folder is already there... I am puzzled... Could it be some sort of server caching? Since this is one of my first adventures with a Linux server, I am a bit confused. Any help appreciated... Thanks.

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  • Is it me or is developing web based data entry GUIs a big pain?

    - by GregH
    Maybe it's me or maybe it isn't. I don't have a huge amount of experience of developing web based data entry software but do have some. I used to do it quite a bit years ago. Used to use Oracle Forms, Visual Studio, various 4th generation languages, and performing the user interface layout used to be a snap. Now doing the user interface for developing web applications seems to be a huge pain in the rear. Just trying to get text entry fields and widgets to go where they are supposed to go on the screen is a total pain. You have to know Javascript, CSS, JQuery, HTML, etc. There must be an easier way to develop data entry forms that produce the needed underlying code for a web page. Maybe I'm just not looking in the right place. There must be some WYSIWYG GUI development tools for the web for developing data entry forms out there. Anybody know of any?

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  • How to change the image by click keyboard arrows?

    - by Nitz
    Hey Guys, I have made one project in java. Now in this particular module, i am showing the user , so i am showing them a stock inventory. Now for doing this. As you will see in the screen shot [ i have put screenshot so you can understand well ]. To show the images , i have made one table and i have put labels in that and then i am setting the icon at the label. Now as soon as user click on the any image, then that image i put on big label. But this works perfect on mouse click but client want that , if user navigate the by keyboard arrow keys then in same should be happen. Means : User navigate by key board then it should reflect on that table [user should know that which is currently seleted ] and then as soon as the user navigate by key board arrow events and then click enter then that image should reflect on big label. Here is the Link for that screenshot.

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  • Cant get Tomcat6.0 to work with Windows 7 Environment

    - by CitadelCSCadet
    Prior to upgrading to windows 7, I was able to use Tomcat 6.0, but when I upgraded to the new Windows, and downloaded Eclipse EE, and downloaded the apache content, I am unable to get Apache to run. When I attempt to start my apacher server through either system tray, or even windows services, it gives the followign error screen. "Windows could not start the Apache Tomcat 6 on local computer. For more information review the system event log. Refer to server specific error code 0." I have been able to locate some forums about error code 0, and some other documentation on this problem, but none of the solutions seems to work. One of the solutions I came across said to take the msvcr71.dll (mscvrt.dll on new platforms) and put it into the bin folder of apache. This also did not work. Does anybody know a fix for this problem, or a way to get around it so I can get my server up and running thanks.

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  • Is it possible to dither a gradient drawable?

    - by Seu
    I'm using the following drawable: <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" > <gradient android:startColor="@color/content_background_gradient_start" android:endColor="@color/content_background_gradient_end" android:angle="270" /> </shape> The problem is that I get severe banding on hdpi devices (like the Nexus One and Droid) since the gradient goes from the top of the screen to the very bottom. According to http://idunnolol.com/android/drawables.html#shape_gradient there isn't a "dither" attribute for a gradient. Is there anything I can do to smooth the gradient?

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  • Samsung Galaxy tab Textbox issue

    - by csharpnewbie
    We are working on a mobile web application( .NET based). We are facing an issue in Samsung galaxy tab text box. Pls find below the details. Let me know if you need more details. Problem in Samsung tab 750 We have a login screen where we focus on the input text box the Samsung tab keypad pops up and the design is completely collapsed. And the same is working fine in iPad. Wanted to check any settings or CSS property to fix this issue. ![After tapping on the text box]

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  • Rails 3 remote resubmit form with dynamic fields

    - by montrealmike
    I have a form which has remote => true. When i submit it the first time everything works well. If there are any errors i want to add new fields to this form. I did this with update.js.erb. The problem is that when i resubmit this form, the result js file is rendered as html (ie i see the js file text on the screen). This is the same update.js.erb file that was rendered as js the first time... Any idea what i'm missing?

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  • iPhone - Landscape Only App

    - by Robert
    Hello all! I am trying to make an app that will only be viewed in Landscape. I have looked up some tutorials (albeit older ones) and have done the following: -set up the info.plist to include a key for uiinterfaceorientation -in the main view controller I have set the frame to be 480 x 320 Now, the first screen loads up ok. Everything is where it should be and whatnot. However, if I click a button that is set to present a modal view controller nothing happens. Everything is linked and coded correctly but nothing happens when I press the button. Am I doing something wrong with trying to force landscape? At it's basic, this question is a how do you effectively make an app that will only be in landscape mode? Thanks for any help.

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  • Page fully rendered event?

    - by alex
    I'm altering the DOM tree in plain JS and need to know when the changes get fully rendered on screen (mostly care about document dimensions). window.onload=function(){ ss = document.styleSheets[0]; for(i = 0; i < ss.cssRules.length; i++) { ss.deleteRule(i) }; ss.addRule('p', 'color: red;') // ... many more // call some other function when the page is fully rendered? } TIA.

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  • How do I get a title or some text to appear in a Silverlight mediaplayer when switching to FullScree

    - by Matt
    I am working on an ASP.NET website with VB.NET code-behind. I have a Silverlight mediaplayer object on one of the pages and the user may view that video in FullScreen mode. When changing to full-screen mode they are losing the title and chapter of the video series they are viewing. I have tried accessing properties and searched the web for examples on how I could put a title or some text over the player when in FullScreen mode to give the user an indication of where they are currently at while viewing each video. I am using OnClientMediaEnded to move through the videos after each video has ended so they are able to watch the whole series once in FullScreen mode. I am using a call to javascript in with this method to do that and want to know if there is any way to get a title or text up there and then change once the video switches to the next in the series? The controls on the player also go away when going into FullScreen mode so any help with that would be greatly appreciated as well. Thanks

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  • I can't get the MapsDemo that comes with "Google APIs by Google Inc, Android API8, revision 2" to work

    - by Hanspeter Adam
    I have tried everything according to instructions to get the MapsDemo to work on API8. I followed all the certificate signing instructions and all I get is a blank (blue) screen on the emulator. I see that people have been having the same issues but all the suggested solutions boil down to the certificate signing and that has not worked for me. One guy on the Internet even said he got it to work but never said how!!!! So, I thought I'd try the MapsDemo that comes with "Google APIs by Google Inc, Android API7, revision 1". There I saw the map come up on the emulator but only once. That one time it came up clearly and I was able to pan it but after exiting the app and trying it again, it no longer worked. Now all I get is some faint outlines that makes it look like it's trying to work but for some reason is not successful. I am running on Windows Vista Service Pack 2 and using Eclipse Helios. Please help, Hans

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  • Authenticating a user for a single app with multiple domains

    - by hofnarwillie
    I have one asp.net web application, but two different domains point to this web app. For instance: www.one.com and www.two.com both point to the same web app. I have an issue where I need certain pages to be on a specific domain (due to some security requirements from our online payment provider - a third party website). So let's say page1.aspx needs to be called on www.two.com The process is as follows: A user logs into www.one.com The authentication cookie is saved to the browser The user then navigates to page1.aspx and, if on the wrong domain, gets redirected to the correct domain. (this redirection happens on page1.aspx in the page_load event) Then asp.net redirects the user to the login screen, because the authentication cookie is not sent to www.two.com. How can I track the user and keep him/her logged in between the two domains?

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  • Do there any dev who wrote iPhone wifi/bluetooth multiplay before?

    - by Jerry1923
    Hi there, do there any dev who wrote iPhone wifi/bluetooth multiplay before? Recently, I'm trying to make my latest game Doodle Kart to have mulityplay via bluetooth. But I found that there are hugh data need to share between the 2 devices. -your car's position and direction -your car's status(it is in normal state, it is hitting by bullet, it is falling into to hole....) -CUP car's position, dicretion, and their status -items position and status (pencil, bullet...) I'm thinking about one device calculate all the things, and the other device just wait and receive the data to display on the screen. Does it make sense? Hey, I should ask you the most important question first: Do you think it's possible to make bluetooth multiplay work on my game? It's just too much data need to share between the device.

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  • Android: Custom Clock widget Service work-around?

    - by Anthony Forloney
    I was interested in developing a clock widget for the homescreen and upon reading Home Screen Widgets tutorial, is there a pre-existing Service I could reference for updating the current time rather than re-inventing the wheel? I have currently Retro Clock on my android phone and noticed that when I click it, it pops up the Alarm Clock settings, but with the default Google Analog Clock widget, upon click does nothing. Is that because the Retro Clock widget implements the Alarm Clock service? If so, how can I go about referencing that service? Or do I have this all wrong and misunderstood? Any help is appreciated. EDIT: I believe implementing the service to update the clock would drain the battery life tremendously, any ideas on a work around or help shed some light on any performance issues with using Service?

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