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  • How to detect if a certain range resides (partly) within an other range?

    - by Tom
    Lets say I've got two squares and I know their positions, a red and blue square: redTopX; redTopY; redBotX; redBotY; blueTopX; blueTopY; blueBotX; blueBotY; Now, I want to check if square blue resides (partly) within (or around) square red. This can happen in a lot of situations, as you can see in this image I created to illustrate my situation better: Note that there's always only one blue and one red square, I just added multiple so I didn't have to redraw 18 times. My original logic was simple, I'd check all corners of square blue and see if any of them are inside square red: if ( ((redTopX >= blueTopX) && (redTopY >= blueTopY) && (redTopX <= blueBotX) && (redTopY <= blueBotY)) || //top left ((redBotX >= blueTopX) && (redTopY >= blueTopY) && (redBotX <= blueBotX) && (redTopY <= blueBotY)) || //top right ((redTopX >= blueTopX) && (redBotY >= blueTopY) && (redTopX <= blueBotX) && (redBotY <= blueBotY)) || //bottom left ((redBotX >= blueTopX) && (redBotY >= blueTopY) && (redBotX <= blueBotX) && (redBotY <= blueBotY)) //bottom right ) { //blue resides in red } Unfortunately, there are a couple of flaws in this logic. For example, what if red surrounds blue (like in situation 1)? I thought this would be pretty easy but am having trouble coming up with a good way of covering all these situations.. can anyone help me out here? Regards, Tom

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  • Recaptcha with Ajax error

    - by Brandon
    I'm having trouble validating a recaptcha input. Heres my code: // Validate Recaptcha Input var challenge = $("#recaptcha_challenge_field").val(); var response = $("#recaptcha_response_field").val(); var dataString = 'recaptcha_challenge_field=' + challenge + '&recaptcha_response_field=' + response; var html = $.ajax({ type: "POST", url: "PHP/recaptchaverify.php", data: dataString, async: true }).responseText; console.log(html); if(html == 'accept') { alert("CORRECT"); } else { alert("The reCAPTCHA wasn't entered correctly. Go back and try it again."); $("#recaptcha_response_field").focus(); Recaptcha.reload(); return false; } Now I passed my variables to recpatchaverify.php require_once('../scripts/recaptcha-php/recaptchalib.php'); $privatekey = "MYKEY"; $resp = recaptcha_check_answer ($privatekey, $_SERVER["REMOTE_ADDR"], $_POST["recaptcha_challenge_field"], $_POST["recaptcha_response_field"]); if (!$resp->is_valid) { // What happens when the CAPTCHA was entered incorrectly echo "error"; } else { // Your code here to handle a successful verification echo "accept"; } Now my problem is the html variable is displaying "accept" whenever I enter the Recaptcha correctly, but it won't work in the IF statement?

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  • When to define SDD operations System->Actor?

    - by devoured elysium
    I am having some trouble understanding how to make SDDs, as I don't fully grasp why in some cases one should define operations for System - Actor and in others don't. Here is an example: 1) The User tells the System that wants to buy some tickets, stating his client number. 2) The System confirms that the given client number is valid. 3) The User tells the System the movie that wants to see. 4) The System shows the set of available sessions and seats for that movie. 5) The System asks the user which session/seat he wants. 6) The user tells the System the chosen session/seat. This would be converted to: a) -----> tellClientNumber(clientNumber) b) <----- validClientNumber c) -----> tellMovieToSee(movie) d) <----- showsAvailableSeatsHours e) -----> tellSystemChosenSessionSeat(session, seat) I know that when we are dealing with SDD's we are still far away from coding. But I can't help trying to imagine how it how it would have been had I to convert it right away to code: I can understand 1) and 2). It's like if it was a C#/Java method with the following signature: boolean tellClientNumber(clientNumber) so I put both on the SDD. Then, we have the pair 3) 4). I can imagine that as something as: SomeDataStructureThatHoldsAvailableSessionsSeats tellSystemMovieToSee(movie) Now, the problem: From what I've come to understand, my lecturer says that we shouldn't make an operation on the SDD for 5) as we should only show operations from the Actor to the System and when the System is either presenting us data (as in c)) or validating sent data (such as in b)). I find this odd, as if I try to imagine this like a DOS app where you have to put your input sequencially, it makes sense to make an arrow even for 5). Why is this wrong? How should I try to visualize this? Thanks

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  • Address book Phone number (+45) prefix causing crash!

    - by CCDEV
    Hi Guys... I am having trouble getting phone numbers from the iPhone Addressbook. There is no problem when the number do not contain a country code prefix like +45, but if it does, my app crashes... Is this a known issue? I haven't been able to find anything about it... Thanks EDIT: I get phonenumber like this: -(void)getContact { ABPeoplePickerNavigationController *pp = [[ABPeoplePickerNavigationController alloc] init]; pp.displayedProperties = [NSArray arrayWithObject:[NSNumber numberWithInt:kABPersonPhoneProperty]]; pp.peoplePickerDelegate = self; [self presentModalViewController:pp animated:YES]; [pp release]; } - (void)peoplePickerNavigationControllerDidCancel:(ABPeoplePickerNavigationController *)peoplePicker { // assigning control back to the main controller [self dismissModalViewControllerAnimated:YES]; } - (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person { return YES; } -(BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier { ABMultiValueRef phoneProperty = ABRecordCopyValue(person,property); saveString = (NSString *)ABMultiValueCopyValueAtIndex(phoneProperty,identifier); saveString = [saveString stringByReplacingOccurrencesOfString:@" " withString:@""]; nummerTextField.text = saveString; }

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  • How do I put my return data from an asmx into JSON?

    - by jphenow
    I want to return an array of javascript objects from my asp.net asmx file. ie. variable = [ { *value1*: 'value1', *value2*: 'value2', ..., }, { . . } ]; I seem have been having trouble reaching this. I'd put this into code but I've been hacking away at it so much it'd probably do more harm than good in having this answered. Basically I am using a web service to find names as people type the name. I'd use a regular text file or something but its a huge database that's always changing - and don't worry I've indexed the names so searching can be a little snappier - but I would really prefer to stick with this method and just figure out how to get usable JSON back to javascript. I've seen a few that sort of attempt to describe how one would approach this but I honestly think microsofts articles are damn near unreadable. Thanks in advance for assistance. EDIT: I'm using the $.ajax() function from jQuery - I've had it working but it seems like I was doing it in bad practice not returning and using actual JSON. Previously I'd take a string back and insert it into html to use the variable it set - very roundabout.

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  • Is there a design pattern that expresses objects (an their operations) in various states?

    - by darren
    Hi I have a design question about the evolution of an object (and its state) after some sequence of methods complete. I'm having trouble articulating what I mean so I may need to clean up the question based on feedback. Consider an object called Classifier. It has the following methods: void initialise() void populateTrainingSet(TrainingSet t) void pupulateTestingSet(TestingSet t) void train() void test() Result predict(Instance i) My problem is that these methods need to be called in a certain order. Futher, some methods are invalid until a previous method is called, and some methods are invalid after a method has been called. For example, it would be invalid to call predict() before test() was called, and it would be invalid to call train() after test() was called. My approach so far has been to maintain a private enum that represents the current stateof the object: private static enum STATE{ NEW, TRAINED, TESTED, READY}; But this seems a bit cloogy. Is there a design pattern for such a problem type? Maybe something related to the template method.

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  • C++ Operator Ambiguity

    - by Scott
    Forgive me, for I am fairly new to C++, but I am having some trouble regarding operator ambiguity. I think it is compiler-specific, for the code compiled on my desktop. However, it fails to compile on my laptop. I think I know what's going wrong, but I don't see an elegant way around it. Please let me know if I am making an obvious mistake. Anyhow, here's what I'm trying to do: I have made my own vector class called Vector4 which looks something like this: class Vector4 { private: GLfloat vector[4]; ... } Then I have these operators, which are causing the problem: operator GLfloat* () { return vector; } operator const GLfloat* () const { return vector; } GLfloat& operator [] (const size_t i) { return vector[i]; } const GLfloat& operator [] (const size_t i) const { return vector[i]; } I have the conversion operator so that I can pass an instance of my Vector4 class to glVertex3fv, and I have subscripting for obvious reasons. However, calls that involve subscripting the Vector4 become ambiguous to the compiler: enum {x, y, z, w} Vector4 v(1.0, 2.0, 3.0, 4.0); glTranslatef(v[x], v[y], v[z]); Here are the candidates: candidate 1: const GLfloat& Vector4:: operator[](size_t) const candidate 2: operator[](const GLfloat*, int) <built-in> Why would it try to convert my Vector4 to a GLfloat* first when the subscript operator is already defined on Vector4? Is there a simple way around this that doesn't involve typecasting? Am I just making a silly mistake? Thanks for any help in advance.

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  • How can I show grouping in a WPF Data Grid with multiple levels?

    - by Keith
    I am relatively new to WPF, so I understand about Styles and setters, but I am having trouble on this one. I am using a WPF Data Grid and need to show multiple levels of grouping. I would like the 2nd and 3rd group levels to be more indented than the top level. The following code will show group levels, but it shows them one right on top of the other and makes the fact that they are nested group levels impossible to tell. <Style x:Key="GroupHeaderStyle" TargetType="{x:Type GroupItem}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type GroupItem}"> <Expander IsExpanded="True"> <Expander.Header> <TextBlock Text="{Binding Path=Name}"/> </Expander.Header> <ItemsPresenter /> </Expander> </ControlTemplate> </Setter.Value> </Setter> </Style> How can I get the group header to indent based on level?

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  • query sql database for specific value in vb.net

    - by user2952298
    I am trying to convert VBA code to vb.net, im having trouble trying to search the database for a specific value around an if statement. any suggestions would be greatly appriciated. thedatabase is called confirmation, type is the column and email is the value im looking for. could datasets work? Function SendEmails() As Boolean Dim objOutlook As Outlook.Application Dim objOutlookMsg As Outlook.MailItem Dim objOutlookRecip As Outlook.Recipient Dim objOutlookAttach As Outlook.Attachment Dim intResponse As Integer Dim confirmation As New ADODB.Recordset Dim details As New ADODB.Recordset On Error GoTo Err_Execute Dim MyConnObj As New ADODB.Connection Dim cn As New ADODB.Connection() MyConnObj.Open( _ "Provider = sqloledb;" & _ "Server=myserver;" & _ "Database=Email_Text;" & _ "User Id=bla;" & _ "Password=bla;") confirmation.Open("Confirmation_list", MyConnObj) details.Open("MessagesToSend", MyConnObj) If details.EOF = False Then confirmation.MoveFirst() Do While Not confirmation.EOF If confirmation![Type] = "Email" Then ' Create the Outlook session. objOutlook = CreateObject("Outlook.Application") ' Create the message. End IF

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  • JQuery dynamic .load - works for 1 and not for the other??

    - by Alvin
    UPDATE: Site is online http://qwickqual.com/memorial/create/ under "Memoria Media" - Click on "Our Videos" and it loads the list of categories click on any sub category and it goes through the process below ---------------- end edit ---------------------------------- UPDATED DESCRIPTION OF ERROR: All code is based on <li> objects being linked If I click on an <li> from the Initial page load to load: section 1: I can click on an <li> to load sub-categories section 2: I then click on an <li>, the query is made server returns section 3, section is not loaded to screen / and callback function is skipped over perhaps someone has run into a similar issue before?? ---------------- end edit ---------------------------------- I've also added comments to the code I have a jquery function that is setup to load categorized lists of thumbnails. So far the function is in use in 3 location. Each of them generates HTML using the same template under django. The function works perfectly in 2 of the 3 locations, and I"m plain stumped as to why the 3rd won't work. Below is the complete set of relevant javascript, the page load HTML for the relevant section. And 2 examples of HTML that is loaded through the script, 1 of them works, 1 of them doesn't and both are loaded into the same page load HTML Any ideas what I'm missing here? Or information I need to add to help debug? Currently posting this to a live server to interact with, been local only till now... Error: Script works properly through all levels of title="our_photos" Script loads 1st level of title="our_videos" Script will not load sub-category of title="our_videos" Example: From HTML below: Click on Script will query the server properly: GET http://localhost%3A8000/memorial/media%5Ftype/our%5Fvideos/4/ Script will not load the returned HTML into the #select_media div scopeChain: [Call, Call multi=false uri=/memorial/media_type/our_videos/, Window # 0=Call 1=Call 2=window] relative vars: label = "our_videos" wrapper = "media" uri = "/memorial/media_type/our_videos/" multi = false Javascript <script type="text/javascript"> // this piece is where I'm having trouble in the grand scheme of things // label = piece of class tag // wrapper = tag to load everything inside of // uri = base of the page to load // multi = not relevant for this piece but needed to pass on to next function function img_thumb_loader(label, wrapper, uri, multi) { if(!(wrapper)) { wrapper = label } $('.'+label+'_category').click(function () { // show the loading animation $('div#'+wrapper+'_load').show(); // get var of current object type = $(this).attr('title') || ''; // load it into the screen - this is the error // when I click on an <li> from section 2 below it will query server // (Tamper data & server see it - & return section 3 below // But will not load into the screen on return // also skips over the callback function $('#select_'+label).load(uri+type+'/', '', function() { $('div#'+wrapper+'_load').hide(); $('input.img_'+label+'_field').each(function() { img = $(this).attr('value'); $('li#img_'+label+'-'+img).css('selected_thumb'); }); img_thumb_selected(label); window[label+'_loader'](); }); }); $('.img_'+label).click(function () { if($(this).hasClass('selected_thumb')) { $(this).removeClass('selected_thumb'); id = $(this).attr('title'); $('.img_'+label+'_selected[value="'+id+'"]').remove(); } else { if(!(multi)) { previous = $('.img_'+label+'_selected').val(); $('#img_'+label+'-'+previous).removeClass('selected_thumb'); $('.img_'+label+'_selected').remove(); } $(this).addClass('selected_thumb'); id = $(this).attr('title'); $('#select_'+wrapper).after('<input class="img_'+label+'_selected" id="img_'+label+'_field-'+id+'" type="hidden" name="imgs[]" value="'+id+'" />'); } }); img_thumb_selected(label); } function img_thumb_selected(label) { $('.img_'+label+'_selected').each(function() { current = $(this).val(); if(current) { $('#img_'+label+'-'+current).addClass('selected_thumb'); } }); } function media_type() { $('.media_type').click(function () { $('#media_load').show(); type = $(this).attr('title') || ''; $('#select_media').load('/memorial/media_type/'+type+'/', '', function() { $('#select_media').wrapInner('<div id="select_'+type+'"></div>'); $('#select_media').append('<ul class="root_link"><h3><a class="load_media" onclick="return false;" href="#">Return to Select Media Type</a></h3></ul>'); load_media_type(); $('#media_load').hide(); window[type+'_loader'](); }); }); } media_type(); function load_media_type() { $('.load_media').click(function () { $('#media_load').show(); $('#select_media').load('{% url mem_media_type %}', '', function() { $('#media_load').hide(); media_type(); }); }); } function our_photos_loader() { img_thumb_loader('our_photos', 'media', '{% url mem_our_photos %}', true); } function our_videos_loader() { img_thumb_loader('our_videos', 'media', '{% url mem_our_videos %}', false); } </script> HTML - Initial Page load <fieldset> <legend>Memorial Media</legend> <div style="display: none;" id="media_load" class="loading"/> <div id="select_media"> <ul style="width: 528px;" class="initial"> <li title="your_photos" class="media_type"><div class="photo_select_upload"><h3>Your Photos</h3></div></li> <li title="our_photos" class="media_type"><div class="photo_select"><h3>Our Photos</h3></div></li> <li title="our_videos" class="media_type"><div class="video_select"><h3>Our Videos</h3></div></li> </ul> </div> </fieldset> HTML - Returned from Click on section 1 this section can make calls to subcategories and it will work <br class="clear" /> <ul class="thumb_sub_category" style="width: 352px;"> <li id="our_photos_category-29" class="our_photos_category" title="29"> <div> <span style="background-image: url(/site_media/photologue/photos/cache/stuff_004_thumbnail.jpg);" class="thumb"><span></span></span> <p>Birds 1</p> </div> </li> <li id="our_photos_category-25" class="our_photos_category" title="25"> <div> <span style="background-image: url(/site_media/photologue/photos/cache/dsc_0035_thumbnail.jpg);" class="thumb"><span></span></span> <p>Dogs 1</p> </div> </li> </ul> HTML - Returned from click on Section 2 Having trouble with sub-categories from this area <br class="clear" /> <ul class="thumb_sub_category" style="width: 528px;"> <li id="our_videos_category-1" class="our_videos_category" title="1"> <div> <span style="background-image: url(/site_media/photologue/photos/cache/forest-1_thumbnail.jpg);" class="thumb"><span></span></span> <p>Video 1</p> </div> </li> <li id="our_videos_category-3" class="our_videos_category" title="3"> <div> <span style="background-image: url(/site_media/photologue/photos/cache/mountain-1_thumbnail.jpg);" class="thumb"><span></span></span> <p>Video 3</p> </div> </li> <li id="our_videos_category-4" class="our_videos_category" title="4"> <div> <span style="background-image: url(/site_media/photologue/photos/cache/mountain-3_thumbnail.jpg);" class="thumb"><span></span></span> <p>Video 4</p> </div> </li> </ul> HTML that fails to load inside - Section 3 <br class="clear" /> <ul class="thumb_sub_category" style="width: 528px;"> <li id="our_videos_category-1" class="our_videos_category" title="1"> <div> <span style="background-image: url(/site_media/photologue/photos/cache/forest-1_thumbnail.jpg);" class="thumb"><span></span></span> <p>Video 1</p> </div> </li> <li id="our_videos_category-3" class="our_videos_category" title="3"> <div> <span style="background-image: url(/site_media/photologue/photos/cache/mountain-1_thumbnail.jpg);" class="thumb"><span></span></span> <p>Video 3</p> </div> </li> <li id="our_videos_category-4" class="our_videos_category" title="4"> <div> <span style="background-image: url(/site_media/photologue/photos/cache/mountain-3_thumbnail.jpg);" class="thumb"><span></span></span> <p>Video 4</p> </div> </li> </ul>

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  • Using h:outputFormat to message-format the f:selectItems of a h:selectOneRadio

    - by msharma
    I am having some trouble with using h:selectOneRadio. I have a list of objects which is being returned which needs to be displayed. I am trying something like this: <h:selectOneRadio id="selectPlan" layout="pageDirection"> <f:selectItems value="#{detailsHandler.planList}" /> </h:selectOneRadio> and planList is a List of Plans. Plan is defined as: public class Plan { protected String id; protected String partNumber; protected String shortName; protected String price; protected boolean isService; protected boolean isOption; //With all getters/setters } The text that must appear for each radio button is actually in a properties file, and I need to insert params in the text to fill out some value in the bean. For example the text in my properties file is: plan_price=The price of this plan is {0}. I was hoping to do something like this: <f:selectItems value="<h:outputFormat value="#{i18n.plan_price}"> <f:param value="#{planHandler.price}"> </h:outputFormat>" /> Usually if it's not a h:selectOneRadio component, if it's just text I use the h:outputFormat along with f:param tags to display the messages in my .property file called i18n above, and insert a param which is in the backing bean. here this does not work. Does anyone have any ideas how I can deal with this? I am being returned a list of Plans each with their own prices and the text to be displayed is held in property file. Any help much appreciated. Thanks!

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  • Java convert time format to integer or long

    - by behrk2
    Hello, I'm wondering what the best method is to convert a time string in the format of 00:00:00 to an integer or a long? My ultimate goal is to be able to convert a bunch of string times to integers/longs, add them to an array, and find the most recent time in the array... I'd appreciate any help, thanks! Ok, based on the answers, I have decided to go ahead and compare the strings directly. However, I am having some trouble. It is possible to have more than one "most recent" time, that is, if two times are equal. If that is the case, I want to add the index of both of those times to an ArrayList. Here is my current code: days[0] = "15:00:00"; days[1] = "17:00:00"; days[2] = "18:00:00"; days[3] = "19:00:00"; days[4] = "19:00:00"; days[5] = "15:00:00"; days[6] = "13:00:00"; ArrayList<Integer> indexes = new ArrayList<Integer>(); String curMax = days[0]; for (int x = 1; x < days.length1; x++) { if (days[x].compareTo(curMax) > 0) { curMax = days[x]; indexes.add(x); System.out.println("INDEX OF THE LARGEST VALUE: " + x); } } However, this is adding index 1, 2, and 3 to the ArrayList... Can anyone help me?

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  • JSP displaying source code instead of executing

    - by DJStroky
    I'm new to jsp and have ran into some trouble. Initially, the jsp file and associated java classes were built and tested fine on a test Tomcat server. Now, they've been transitioned to another server of what I believe is the same setup (except it's linux now instead of windows). But when the jsp page is accessed the source code is displayed instead of the jsp actually executing. I've googled for a while but received no success. I had thought that this page might solve the problem since there was no reference to the jsp file I was using or even the following snippets in my web.xml file in the WEB-INF folder: <servlet> <servlet-name>jsp</servlet-name> <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class> <init-param> <param-name>logVerbosityLevel</param-name> <param-value>WARNING</param-value> </init-param> <load-on-startup>3</load-on-startup> </servlet> <servlet-mapping> <servlet-name>jsp</servlet-name> <url-pattern>*.jsp</url-pattern> </servlet-mapping> I tried inserting these lines and restarting Tomcat, but no success. Any ideas?

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  • CSS - Why is this invisible margin being applied to my <a> tag css-button?

    - by Kenny Bones
    I was having trouble with two types of buttons. It was a form button and a css button basically. And I was advised that the css button whould use display:inline-block; This made the whole a href tag actually look like a button. But this invisible margin seems to be screwing up something. I tried separating them into separate css classes, but oddly, applying a real margin to the css button gives an additional margin as well. What's causing this? You can easily see it here (low graphics): www.matkalenderen.no Basically, code looks like this: <input type="submit" value="Logg inn" class="button_blue" alt="ready to login"> <a class="button_css_red" href="access.php">Glemt passord</a> CSS .button_red, .button_blue, .button_css_red, .button_css_blue { background-image:url("../img/sprite_buttons.png"); background-repeat:no-repeat; border: none; color:#FFFFFF; display:inline-block; display:inline-block; font-size:12px; height:27px; width:98px; } .button_css_red, .button_css_blue { margin-top:20px; }

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  • Splitting a string which contain multiple symbols to get specific values

    - by Eon Rusted du Plessis
    I cannot believe I am having trouble with this following string String filter = "name=Default;pattern=%%;start=Last;end=Now"; This is a short and possibly duplicate question, but how would I split this string to get: string Name = "Default"; string Pattern = "%%" ; string start = "Last" ; string end = "Now" ; Reason why I ask is my deadline is very soon, and this is literally the last thing I must do. I'm Panicking, and I'm stuck on this basic command. I tried: pattern = filter.Split(new string[] { "pattern=", ";" }, StringSplitOptions.RemoveEmptyEntries)[1]; //Gets the pattern startDate = filter.Split(new string[] { "start=", ";" }, StringSplitOptions.RemoveEmptyEntries)[1]; //Gets the start date I happen to get the pattern which I needed, but as soon as I try to split start, I get the value as "Pattern=%%" What can I do? Forgot to mention The list in this string which needs splitting may not be in any particular order . this is a single sample of a string which will be read out of a stringCollection (reading these filters from Properties.Settings.Filters

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  • JSON is not being recognised

    - by richzilla
    Hi All, Im having a bit of trouble getting my JSON to be recognised by my web page. I have validated JSON that im getting returned from server, so i know that is correct, however my javascript function is not doing anything with it. My succes function is as follows: success: function(data) { $('input[name=customer_name]').val(data.name); $('textarea[name=customer_address]').text(data.address); $('input[name=customer_email]').val(data.email); $('input[name=customer_tel]').val(data.tel); $('input[name=user_id]').val(item.id); } Yet the fields are not being repopulated with the data that is returned, if it helps, a sample of my JSON data: { "name": "Terry O'Toole", "address": "Terrys House\nTerry Street\nTerrysville\nTerrytown\nTT1 6TT", "email": "[email protected]", "tel": "05110000000" } Any help would be appreciated. [EDIT] Expanded ajax call: $.ajax({ url: "<?php echo site_url('user/users/ajax'); ?>", type: 'POST', data: {"userid": item.id}, success: function(data) { $('input[name=customer_name]').val(data.name); $('textarea[name=customer_address]').text(data.address); $('input[name=customer_email]').val(data.email); $('input[name=customer_tel]').val(data.tel); $('input[name=user_id]').val(item.id); } }) });

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  • Namespace scoped aliases for generic types in C#

    - by TN
    Let's have a following example: public class X { } public class Y { } public class Z { } public delegate IDictionary<Y, IList<Z>> Bar(IList<X> x, int i); public interface IFoo { // ... Bar Bar { get; } } public class Foo : IFoo { // ... public Bar Bar { get { return null; //... } } } void Main() { IFoo foo; //= ... IEnumerable<IList<X>> source; //= ... var results = source.Select(foo.Bar); } The compiler says: The type arguments for method 'System.Linq.Enumerable.Select(System.Collections.Generic.IEnumerable, System.Func)' cannot be inferred from the usage. Try specifying the type arguments explicitly. It's because, it cannot convert Bar to Func<IList<X>, int, IDictionary<Y, IList<Z>>>. It would be great if I could create type namespace scoped type aliases for generic types in C#. Then I would define Bar not as a delegate, but rather I would define it as an namespace scoped alias for Func<IList<X>, int, IDictionary<Y, IList<Z>>>. public alias Bar = Func<IList<X>, int, IDictionary<Y, IList<Z>>>; I could then also define namespace scoped alias for e.g. IDictionary<Y, IList<Z>>. And if used appropriately:), it will make the code more readable. Now I have inline the generic types and the real code is not well readable:( Have you find the same trouble:)? Is there any good reason why it is not in C# 3.0? Or there is no good reason, it's just matter of money and/or time? EDIT: I know that I can use using, but it is not namespace based - not so convenient for my case.

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  • Servlet that starts a thread only once for every visitor

    - by user858749
    Hey I want to implement a Java Servlet that starts a thread only once for every single user. Even on refresh it should not start again. My last approach brought me some trouble so no code^^. Any Suggestions for the layout of the servlet? public class LoaderServlet extends HttpServlet { // The thread to load the needed information private LoaderThread loader; // The last.fm account private String lfmaccount; public LoaderServlet() { super(); lfmaccount = ""; } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { if (loader != null) { response.setContentType("text/plain"); response.setHeader("Cache-Control", "no-cache"); PrintWriter out = response.getWriter(); out.write(loader.getStatus()); out.flush(); out.close(); } else { loader = new LoaderThread(lfmaccount); loader.start(); request.getRequestDispatcher("WEB-INF/pages/loader.jsp").forward( request, response); } } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { if (lfmaccount.isEmpty()) { lfmaccount = request.getSession().getAttribute("lfmUser") .toString(); } request.getRequestDispatcher("WEB-INF/pages/loader.jsp").forward( request, response); } } The jsp uses ajax to regularly post to the servlet and get the status. The thread just runs like 3 minutes, crawling some last.fm data.

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  • Detect mouseover and show tooltip text for dots on an HTML Canvas

    - by carl asquith
    Ive recently created a "map" although not very sophisticated (im working on it) it has the basic function and is generally heading in the right direction. If you look at it you can see a tiny red dots and on those tiny red dots i want to mouseover it and see text basically but ive had a bit of trouble getting the code right. http://hummingbird2.x10.mx/website%20creation/mainpage.htm This is all the code so far. <!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"> <head> <title>Oynx Warrior</title> <link rel="stylesheet" type="text/css" href="mystyle.css" /> </head> <body> <h1>Oynx Warrior</h1> <canvas id="myCanvas" width="500" height="500" style="border:1px solid #c3c3c3;"> Your browser does not support the canvas element. </canvas> <script type="text/javascript"> var c=document.getElementById("myCanvas"); var cxt=c.getContext("2d"); cxt.fillStyle="#red"; cxt.beginPath(); cxt.arc(50,50,1,0,Math.PI*2,true); cxt.closePath(); cxt.fill(); </script> </body> </html>

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  • How to replace auto-implemented c# get body at runtime or compile time?

    - by qstarin
    I've been trying to figure this out all night, but I guess my knowledge of the .Net Framework just isn't that deep and the problem doesn't exactly Google well, but if I can get a nod in the right direction I'm sure I can implement it, one way or another. I'd like to be able to declare a property decorated with a custom attribute as such: public MyClass { [ReplaceWithExpressionFrom(typeof(SomeOtherClass))] public virtual bool MyProperty { get; } } public SomeOtherClass : IExpressionHolder<MyClass, bool> { ... } public interface IExpressionHolder<TArg, TResult> { Expression<Func<TArg, TResult>> Expression { get; } } And then somehow - this is the part I'm having trouble figuring - replace the automatically generated implementation of that getter with a piece of custom code, something like: Type expressionHolderType = LookupAttributeCtorArgTypeInDeclarationOfPropertyWereReplacing(); return ReplaceWithExpressionFromAttribute.GetCompiledExpressionFrom(expressionHolderType)(this); The main thing I'm not sure how to do is replace the automatic implementation of the get. The first thing that came to mind was PostSharp, but that's a more complicated dependency than I care for. I'd much prefer a way to code it without using post-processing attached to the build (I think that's the jist of how PostSharp sinks its hooks in anyway). The other part of this I'm not so sure about is how to retrieve the type parameter passed to the particular instantiation of the ReplaceWithExpressionFrom attribute (where it decorates the property whose body I want to replace; in other words, how do I get typeof(SomeOtherClass) where I'm coding the get body replacement). I plan to cache compiled expressions from concrete instances of IExpressionHolder, as I don't want to do that every time the property gets retrieved. I figure this has just got to be possible. At the very least I figure I should be able to search an assembly for any method decorated with the attribute and somehow proxy the class or just replace the IL or .. something? And I'd like to make the integration as smooth as possible, so if this can be done without explicitly calling a registration or initialization method somewhere that'd be super great. Thanks!

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  • Develop multiple very similar projects at once

    - by Raveren
    I am developing a semi-complicated site that is available in several countries at once. Much effort has been put in to make the code bases as similar as possible to one another and ultimately only the config file and some representational data will differ between them. Each project has its own SVN repository which maps directly to a live test site. That part is handled by the IDE we use to work. Now I am in need to create a some sort of system to keep all these projects in sync. The best theoretical solution so far is to create a local hook script that would fire on committing and Merge the committed files from the project that is being committed to all other projects Optionally upload them to the live site, replacing previous files The first problem is that I don't know how I would do the merging - I guess it would be like applying a SVN patch or something. The second is if I do not want to upload the changes to the live server, how would I go about synching the live and local code bases (replace older files?). I am posting this question, not going through the potentially huge trouble of solving the aforementioned problems myself is that I believe this is a pretty common situation and someone would already have a solution and others may benefit from the answers in the future. Lastly, I'm on windows7, develop PHP and use tortoiseSVN.

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  • Accessing appropriate array of double arrays in order of last created.

    - by Zach
    I have an array of double arrays, they are within a specified time window (8am-5pm), and are in order of last created over a period of several days. They are all timestamped and as such I have access to all C# DateTime methods. I then have a different iterative function that goes in the same order of the array of double arrays, however it isn't within a specified time window, it's 24/7. I want to access from this iterative function, the appropriate double array from the one within the window. Let's say that it's 4:30PM on DayOfYear 52, I'd like to access the last double array less than or equal to 4:30PM on DayOfYear 52. I'd expect the same double array if the time were 12:30AM on DayOfYear 53. However, if it were 9:00 AM of DayOfYear 53, well then I'd expect it to return something from the DayOfYear 53, less than or equal to 9:00AM. I think you get the idea. So I'm a having a bit of trouble grokking how to do this. Is anyone willing to offer a starting point or how they'd approach it? Edit: It is not a literal double[][], it is exactly as Anthony Pegram says: Dictionary<DateTime, double[]>

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  • Why does Perl's Devel::LeakTrace::Fast point to blank files and evals?

    - by kt
    I am using Devel::LeakTrace::Fast to debug a memory leak in a perl script designed as a daemon which runs an infinite loop with sleeps until interrupted. I am having some trouble both reading the output and finding documentation to help me understand the output. The perldoc doesn't contain much information on the output. Most of it makes sense, such as pointing to globals in DBI. Intermingled with the output, however, are several leaked SV(<LOCATION>) from (eval #) line # Where the numbers are numbers and <LOCATION> is a location in memory. The script itself is not using eval at any point - I have not investigated each used module to see if evals are present. Mostly what I want to know is how to find these evals (if possible). I also find the following entries repeated over and over again leaked SV(<LOCATION>) from line # Where line # is always the same #. Not very helpful in tracking down what file that line is in.

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  • Entity Filter child without include

    - by Lic
    i'm a C# developer and i have a trouble with Entity Framework 5. I have mapped my database with Entity using the default code generation strategy. In particolar there are three classes: menus, submenus and submenuitems. The relationships about three classes are: one menu - to many submenus one submenu - to many submenuitems. All classes have a boolean attribute called "Active". Now, i want to filter all the Menus with the SubMenus active, and the SubMenus with the SubMenuItems active. To get this i've tried this: var tmp = _model.Menus.Where(m => m.Active) .Select => new { Menu = x, SubMenu = x.SubMenus.Where(sb => sb.Active) .Select(y => new { SubMenu = y, SubMenuItem = y.SubMenuItems.Where(sbi => sbi.Active) }) }) .Select(x => x.Menu).ToList(); But didn't work. Someone can help me? Thank you for your help!

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  • [jQuery] What would be the best way to perform a basic CRUD using AJAX

    - by rasouza
    I'm having trouble to make a simple CRUD in my site. I have a table of registries <table> <tbody> <?php foreach ($row as $reg) { ?> <tr <?php if ($reg['value'] < 0) { echo "class='error'"; } ?>> <td><?php echo $reg['creditor'] ?></td> <td><?php echo $reg['debtor'] ?></td> <td><?php echo $reg['reason'] ?></td> <td>R$ <?php echo number_format(abs($reg['value']), 2, ',', ' ')?></td> <td><a **href="<?php echo $this->baseUrl(); ?>/history/delete/id/<?php echo $reg['id']; ?>"** class="delete"><img src="http://192.168.0.102/libraries/css/blueprint/plugins/buttons/icons/cross.png" alt=""/></a></td> </tr> <?php } ?> </tbody> </table> which I would like to perform a simple delete in these rows using AJAX (preferenciably with jQuery). The question is: do I have to create a function in JS and add onmouseclick event in the HTML? is there a more consistent way for doing this, like adding $('.delete').click() directly in the js file? If so, how do I pass the row ID for the ajax function? What I really want is to know how to pass the row ID to $.ajax() jQuery function through a clean! way

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