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  • How do I get a screenshot of a given website using C#

    - by Ender
    I'm writing a specialised crawler and parser for internal use and I require the ability to take a screenshot of a web page in order to check what colours are being used throughout. The program will take in around ten web addresses and will save them as a bitmap image, from there I plan to use LockBits in order to create a list of the five most used colours within the image. To my knowledge it's the easiest way to get the colours used within a web page but if there is an easier way to do it please chime in with your suggestions. Anyway, I was going to use this program until I saw the price tag. I'm also fairly new to C#, having only used it for a few months. Can anyone provide me with a solution to my problem of taking a screenshot of a web page in order to extract the colour scheme? EDIT: Sorry for not getting back to this sooner, but I've been busy with some other things. Anyway, the code seems to work well, but the problem I am having right now is that I am running it within a form, and naturally with Application.Run() being called I cannot run two instances of the same form at once. It recommended Form.showDialog() but that broke everything. Can anyone give me a hand with this code? public static void buildScreenshotFromURL(string url) { int width = 800; int height = 600; using (WebBrowser browser = new WebBrowser()) { browser.Width = width; browser.Height = height; browser.ScrollBarsEnabled = true; // This will be called when the page finishes loading browser.DocumentCompleted += new System.Windows.Forms.WebBrowserDocumentCompletedEventHandler(OnDocumentCompleted); //browser.DocumentCompleted += OnDocumentCompleted; browser.Navigate(url); // This prevents the application from exiting until // Application.Exit is called // Application.Run() does not work as it cannot be called twice, recommended form.showDialog() // but still issues Application.Run(); } } public static void OnDocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) { // Define size of thumbnail neded int thumbSize = 50; // Now that the page is loaded, save it to a bitmap WebBrowser browser = (WebBrowser)sender; using (Graphics graphics = browser.CreateGraphics()) { using (Bitmap bitmap = new Bitmap(browser.Width, browser.Height, graphics)) { Rectangle bounds = new Rectangle(0, 0, bitmap.Width, bitmap.Height); browser.DrawToBitmap(bitmap, bounds); Bitmap thumbBitmap = new Bitmap(bitmap.GetThumbnailImage(thumbSize, thumbSize, thumbCall, IntPtr.Zero)); thumbBitmap.Save("screenshot.png", ImageFormat.Png); handleImage(thumbBitmap); } }

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  • Rich-Text Editing of Word Documents on the Web via ASP.NET

    - by Caveatrob
    My users upload Word 2007 documents to our site and I'd like to load them into a rich edit control of some kind so the users can make modifications/ comment, etc. What mechanisms are available to: load the Word document via ASP.NET, and parse/format/display the document in a rich editing control? Also, what kinds of rich editing controls are best to use in this circumstance?

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  • SOAP-ERROR: Parsing WSDl

    - by Pinu
    In my ASP.NET website I am trying to comsume a webserice and I and getting the following error: SOAP-ERROR: Parsing WSDL: Couldn't load from 'https://usaepay.com/soap/gate/3213EA2A/usaepay.wsdl' : failed to load external entity "https://usaepay.com/soap/gate/3213EA2A/usaepay.wsdl" Any idea on how to resolve it. Thanks, Pinaz.

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  • background Image

    - by Himanshu Jani
    Hi Everyone, I am using a big backgroound image and a moving clouds flash movie both as background of webpage..Every time the page loads the both contents load..Can anyone help me that how to load the background content single time when the page loads in browser first time. I am using html and IE7. Thnaks,

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  • Grails Liferay portlet not invoking action

    - by RJ Regenold
    I am trying to create a simple portlet for Liferay 5.2.2 using Grails 1.2.1 with the grails-portlets 0.7 and grails-portlets-liferay 0.2 plugins. I created and deployed a stock portlet (just updated title, description, etc...). It deploys correctly and the view renders correctly. However, when I submit the default form that is in view.gsp it never hits the actionView function. Here are the relevant code bits: SearchPortlet.groovy class SearchPortlet { def title = 'Search' def description = ''' A simple search portlet. ''' def displayName = 'Search' def supports = ['text/html':['view', 'edit', 'help']] // Liferay server specific configurations def liferay_display_category = 'Category' def actionView = { println "In action view" } def renderView = { println "In render view" //TODO Define render phase. Return the map of the variables bound to the view ['mykey':'myvalue'] } ... } view.gsp <%@ taglib uri="http://java.sun.com/portlet" prefix="portlet" %> <div> <h1>View Page</h1> The map returned by renderView is passed in. Value of mykey: ${mykey} <form action="${portletResponse.createActionURL()}"> <input type="submit" value="Submit"/> </form> </div> The tomcat terminal prints In render view whenever I view the portlet, and after I press the submit button. It never prints the In action view statement. Any ideas? Update I turned on logging and this is what I see whenever I click the submit button in the portlet: [localhost].[/gportlet] - servletPath=/Search, pathInfo=/invoke, queryString=null, name=null [localhost].[/gportlet] - Path Based Include portlets.GrailsDispatcherPortlet - DispatcherPortlet with name 'Search' received render request portlets.GrailsDispatcherPortlet - Bound render request context to thread: com.liferay.portlet.RenderRequestImpl@7a158e portlets.GrailsDispatcherPortlet - Testing handler map [org.codehaus.grails.portlets.GrailsPortletHandlerMapping@1f06283] in DispatcherPortlet with name 'Search' portlets.GrailsDispatcherPortlet - Testing handler adapter [org.codehaus.grails.portlets.GrailsPortletHandlerAdapter@74f72b] portlets.GrailsPortletHandlerAdapter - portlet.handleMinimised not set, proceeding with normal render portlet.SearchPortlet - In render view portlets.GrailsPortletHandlerAdapter - Couldn't resolve action view /search/null.gsp portlets.GrailsPortletHandlerAdapter - Trying to render mode view /search/view.gsp portlets.GrailsDispatcherPortlet - Setting portlet response content type to view-determined type [text/html;charset=ISO-8859-1] [localhost].[/gportlet] - servletPath=/WEB-INF/servlet/view, pathInfo=null, queryString=null, name=null [localhost].[/gportlet] - Path Based Include portlets.GrailsDispatcherPortlet - Cleared thread-bound render request context: com.liferay.portlet.RenderRequestImpl@7a158e portlets.GrailsDispatcherPortlet - Successfully completed request The fourth line in that log snippet says Bound render request..., which I don't understand because the action in the form that is in the portlet is to the action url. I would've thought that should be an action request.

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  • how to refresh/reload dhtmlx grid

    - by steve
    I am using dhtmlx grid.I have two grids named grid1,grid2. I have loaded the two grids using json object. If i select one record in the grid1 and click on the button that record has to load in the second record.I am able to load that selected record in the second grid using document.location.reload(true);with this, the total page is refreshing.but i want to refresh grid2 only. I want to refresh grid2 only after click on the button.how can i refresh/reload grid2.

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  • Reading and writing to app.config file in C#

    - by Indigo Praveen
    I have some of the values saved in app.config file, I want to create a WinForms application which shows all the AppSettings values in a Form. In the form user can change the settings values, after making changes the user can press the Save button and on this I want to save all the values back to the app.config file. Is there any way to do that in C#?

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  • NUnit isn't running VS10 code

    - by Ball
    I'm trying to load a Visual Studio 2010 beta dll into the NUnit GUI. I get a popup error. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded. You may be attempting to load an assembly build with a leter version of the CLR than the version under which NUnit is currently running. How do I force an executable to run under .NET 4 beta?

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  • Objective-C memory leak in loading remote content

    - by Ican Zilb
    I try to load a plist file from my server. I can think of 2 ways to do that, but for both Instruments says there's huge memory leak : NSData* plistData = [NSData dataWithContentsOfURL:url]; and NSDictionary* updateDigest = [NSDictionary dictionaryWithContentsOfURL: [NSURL URLWithString:updateURL] ]; The backtrace of the memory leak leads to __CFURLCache in CFNetwork and I am wondering if something can be done to fix the leak? Any other way to load a remote plist xml, without the memory leakage ? Thanks

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  • reCaptcha issue with Spring MVC

    - by skip
    Hi I've been trying to integrate reCaptcha with my application built on Spring framework, but I am getting this error: org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'recaptcha_challenge_field' is not present Could someone help me understand that why am I getting this error. I've got both recaptcha_challenge_field and recaptcha_response_field parameters bound to the User domain object. Could anybody help me understand what am I missing? Thanks Here is the code of the controller I am using, all I am trying to do is register a user with reCaptcha functionality but what I am getting is a http status 400 with the error org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'recaptcha_challenge_field' is not present: UserManagementController.java @Controller public class UserManagementController { private static final String RECAPTCHA_HTML = "reCaptchaHtml"; @Autowired private UserService userService; @Autowired private ReCaptcha reCaptcha; @RequestMapping(method=RequestMethod.GET, value="/addNewUser.do") public ModelAndView addNewUser() { User user = new User(); String html = reCaptcha.createRecaptchaHtml(null, null); ModelMap modelMap = new ModelMap(); modelMap.put("user", user); modelMap.put(RECAPTCHA_HTML, html); return new ModelAndView("/addNewUser", modelMap); } @RequestMapping(method=RequestMethod.POST, value="/addNewUser.do") public String addNewUser(@Valid User user, BindingResult result, @RequestParam("recaptcha_challenge_field") String challenge, @RequestParam("recaptcha_response_field") String response, HttpServletRequest request, Model model) { verifyBinding(result); String remoteAddr = request.getRemoteAddr(); ReCaptchaResponse reCaptchaResponse = reCaptcha.checkAnswer(remoteAddr, challenge, response); if (!reCaptchaResponse.isValid()) { result.rejectValue("captcha", "errors.badCaptcha"); } model.addAttribute("user", user); if (result.hasErrors()) { result.reject("form.problems"); return "addNewUser"; } return "redirect:showContent.do"; } @InitBinder public void initBinder(WebDataBinder binder) { binder.setAllowedFields(new String[] { "firstName", "lastName", "email", "username", "password", "recaptcha_challenge_field", "recaptcha_response_field" }); } private void verifyBinding(BindingResult result) { String[] suppressedFields = result.getSuppressedFields(); if (suppressedFields.length > 0) { throw new RuntimeException("You've attempted to bind fields that haven't been allowed in initBinder(): " + StringUtils.join(suppressedFields, ", ")); } } } Here is the addNewUser.jsp element on the form page for the above controller: <tr> <td>Please prove you're a person</td> <td>${reCaptchaHtml}</td> <td><form:errors path="captcha" cssStyle="color:red"></form:errors></td> </tr> Could you help me understand what am I missing here? Thanks for reply.

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  • C#: BackgroundWorker cloning resources?

    - by Dav
    The problem I've been struggling with this partiular problem for two days now and just run out of ideas. A little... background: we have a WinForms app that needs to access a database, construct a list of related in-memory objects from that data, and then display on a DataGridView. Important point is that we first populate an app-wide cache (List), and then create a mirror of the cache local to the form on which the DGV lives (using List constructor param). Because fetching the data takes a good few seconds (DB sits on a LAN server) to load, we decided to use a BackgroundWorker, and only refresh the DGV once the data is loaded. However, it seems that doing the loading via a BGW results in some memory leak... or an error on my part. When loaded using a blocking method call, the app consumes about 30MB of RAM; with a BGW this jumps to 80MB! While it may not seem as much anyway, our clients are not too happy about it. Relevant code Form private void MyForm_Load(object sender, EventArgs e) { MyRepository.Instance.FinishedEvent += RefreshCache; } private void RefreshCache(object sender, EventArgs e) { dgvProducts.DataSource = new List<MyDataObj>(MyRepository.Products); } Repository private static List<MyDataObj> Products { get; set; } public event EventHandler ProductsLoaded; public void GetProductsSync() { List<MyDataObj> p; using (MyL2SDb db = new MyL2SDb(MyConfig.ConnectionString)) { p = db.PRODUCTS .Select(p => new MyDataObj {Id = p.ID, Description = p.DESCR}) .ToList(); } Products = p; // tell the form to refresh UI if (ProductsLoaded != null) ProductsLoaded(this, null); } public void GetProductsAsync() { using (BackgroundWorker myWorker = new BackgroundWorker()) { myWorker.DoWork += delegate { List<MyDataObj> p; using (MyL2SDb db = new MyL2SDb(MyConfig.ConnectionString)) { p = db.PRODUCTS .Select(p => new MyDataObj {Id = p.ID, Description = p.DESCR}) .ToList(); } Products = p; }; // tell the form to refresh UI when finished myWorker.RunWorkerCompleted += GetProductsCompleted; myWorker.RunWorkerAsync(); } } private void GetProductsCompleted(object sender, RunWorkerCompletedEventArgs e) { if (ProductsLoaded != null) ProductsLoaded(this, null); } End! GetProductsSync or GetProductsAsync are called on the main thread, not shown above. Could it be that the GarbageCollector just gets lost with two threads? Or is it the task manager that shows incorrect values? Will be greateful for any responses, suggestions, criticism.

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  • jquery ajax call in onsubmit function is not working

    - by shilna mk
    I have form submission page add_sale.php and an ajax page ajx_check_sale.php.Ajax call is inthe onsubmit function.But ajax is not worikng.Anybody give any solution plz.. I have form submission page add_sale.php and an ajax page ajx_check_sale.php.Ajax call is inthe onsubmit function.But ajax is not worikng.Anybody give any solution plz.. add_sale.php function sale_credit(id) { var cust_name=$('#cust_name').val(); $.ajax({ type: "POST", url: 'ajx_typ1.php', data:'id='+id, success: function(msg) { $("#sale_type1").html(msg); } }); $.ajax({ type: "POST", url: 'ajx_typ3.php', data:'id='+id, success: function(msg) { $("#sale_type3").html(msg); } }); $.ajax({ type: "POST", url: 'ajx_typ2.php', data:'id='+id, success: function(msg) { $("#sale_type2").html(msg); } }); } function validate_form() { var cust_name= $('#cust_name').val(); var total= $('#total').val(); var sale_type= $('#sale_type').val(); if(sale_type=='return') { $.ajax({ type: "POST", url: 'ajx_check_sale.php', data:'cust_name='+cust_name + '&total=' + total, success: function(msg) { alert(msg); /*if(msg==0) { alert("Return is greater then sale"); return false; } */ } }); } } <form action="" method="post" name="adFrm" onSubmit="return validate_form()"> <select name="sale_type" style="width:130px;" id="sale_type" onchange="sale_credit(this.value)" > <option value="">Select</option> <option value="credit">Credit</option> <option value="payment">Payment</option> <option value="return">Return</option> </select> </form> ajx_check_sale.php require_once("codelibrary/inc/variables.php"); require_once("codelibrary/inc/functions.php"); echo $cust_name=$_POST['cust_name']; echo $return=$_POST['total']; $cus="select sum(total) as total_sum from customer where id='$cust_id'"; $cus2=mysql_query($cus); $fet=mysql_fetch_array($cus2); $total=$fet['total_sum']; if($return>$total) { $status=0; echo $status; } else { $status=1; echo $status; }

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  • How to set state of controls from viewstate on non PostBack page

    - by n1zero
    I am currently saving viewstate of pages in cache. I can see that viewstate is rebinding values and controls on PostBack. It is working properly on postback. However, I need to recreate state on a non-post back page.The key i'm using for loading viewstate from cache is being passed in the querystring but I am unable to find a way to force viewstate to load on a non-post back page. Is there any way to force a load of viewstate on a Non-Postbacked Page?

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  • file upload in ajax by using php

    - by princess123
    hi.... I wud like to use file upload(ajax/javascript with php) in my form that has other controls also. when i uploaded an img it displays on the same form with delete option. if i click on submit it goes into folder as well as database & if i click on delete it deletes an img.... anybody can help me?pls u knw gmail file upload exact like that

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  • XML cross-browser support

    - by 1anthony1
    I need help getting the file to run in Firefox: I have tried adapting scripts so that my file runs in both IE and Firefox but so far it still only works in IE. (The file can be tested at http://www.eyle.org/crosstest.html - simply type the word Mike in the text box using IE (doesn't work in Firefox).The HTML document is: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> <script type="text/javascript"> var xmlDoc; //loads xml using either IE or firefox function loadXmlDoc() { //test for IE if(window.ActiveXObject) { xmlDoc = new ActiveXObject("Microsoft.XMLDOM"); xmlDoc.async = false; xmlDoc.load("books2.xml"); } //test for Firefox else if(document.implementation && document.implementation.createDocument) { xmlDoc = document.implementation.createDocument("","",null); xmlDoc.load("books2.xml"); } //if neither else {document.write("xml file did not load");} } //window.onload = loadXmlDoc(); var subject; //getDetails adds value of txtField to var subject in outputgroup(subject) function getDetails() { //either this or window.onload = loadXmlDoc is needed loadXmlDoc(); var subject = document.getElementById("txtField1").value; function outputgroup(subject) { var xslt = new ActiveXObject("Msxml2.XSLTemplate"); var xslDoc = new ActiveXObject("Msxml2.FreeThreadedDOMDocument"); var xslProc; xslDoc.async = false; xslDoc.resolveExternals = false; xslDoc.load("contains3books.xsl"); xslt.stylesheet = xslDoc; xslProc = xslt.createProcessor(); xslProc.input = xmlDoc; xslProc.addParameter("subj", subject); xslProc.transform(); document.write(xslProc.output); } outputgroup(subject); } </script> </head> <body> <input type="text" id="txtField1"> <input type="submit" onClick="getDetails(); return false"> </body> </html> The file includes books2.xml and contains3books.xsl (I have put the code for these files at ...ww.eyle.org/books2.xml ...ww.eyle.org/contains3books.xsl) (NB: replace ...ww. with http: // www)

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  • How do you set the initial value for a ManyToMany field in django?

    - by mlissner
    I am using a ModelForm to create a form, and I have gotten the initial values set for every field in the form except for the one that is a ManyToMany field. I understand that I need to give it a list, but I can't get it to work. My code right now is roughly: contacts = userProfile.contact.all() initial = {'contacts': contacts} But that doesn't work. Am I missing something here?

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  • Add information through a stored procedure and PHP?

    - by theband
    I have a form which contains a lot of elements, my DB guy has generated an SP and now i need to call that stored procedure. My form has twenty elements, when i click on submit the data must be saved in database. I know how to do this on insert query, but how to call an SP and perform this operation.

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