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• Event handling to detect if user clicks a 'Like' button in XFBML page

  - by Simon_Weaver

  I have a Facebook connect app / canvas IFrame app which has a Like control for a fanpage. I'd like to detect when the user clicks the Like button to be able to display additional info (a discount coupon code). I'm using the latest Javascript API but the events that can be handled doesn't seem to include detection of social widget controls. The documentation for the Like Plugin doesn't show any events. However I know its definitely possible because if I have two Like buttons on a page they both instantly update each other if I like or unlike whatever it is.

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• How HID devices work when programming?

  - by user1008476

  I have a barcode scanner works as HID device. Everytime a barcode scans it goes directly to windows keyboard, for example if I open notepad I can see the barcode typed there. As far as I know programmatically is it possible to to read HID data from your HID devices. But what happens if the user is already on a form with a text edit control? The scanned code will go inside the text box. Can you block incoming text and make a background-only processing? Can you explain the theory please?

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• One repository/multiple projects without getting mixed up?

  - by OverTheRainbow

  Hello After reading Joel's last article on Mercurial, I'm giving it a shot on XP as a single-user, single-computer source control system. One thing I'd like to check, though, is: It'd be easier to just create a repository of all the tiny projects I keep in eg. C:\VB.Net\, but the result is that the changes I make to the different projects therein (C:\VB.Net\ProjectA\, C:\VB.Net\ProjectB\, etc.) will be mixed in a single changelog. But if I use a single repository for all projects, when I do diff's or go through the change history, will I be able to filter data so that I only see changes pertaining to a given project? Otherwise, is creating repositories in each project directory the only solution? Thank you.

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• DLL response is too slow in Visual Studio [Resolved]

  - by magsto

  I use a 3rd party DLL in my VB.NET project (VS2005) that responds to slow and give wrong values in debug mode. In run-time mode everything works as expected. I do understand that there are something going on in the debug mode which makes the DLL communication slow. This behavior makes it hard to debug the application correctly. Is there any way to force VS to communicate with the DLL in "run-time" mode during debugging but let the rest of the project be in control of the debugger? I found a setting that resolved my issue: Project Properties Debug Enable Debuggers select "Enable unmanaged code debugging". Now the DLL communication flowed smoothly. The DLL I use is a middleware between my app and a USB device. There is no Debug/Release version of the DLL.

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• how to selfhost wcf without iis

  - by dotnetcoder

  Reading up on WCF we have self hosting option available , one limitation here is we have to manage the host process lifecycle ourselves. What I am exploring here is to run the service without IIS and do a self hosting. Few things come to mind - How will request management work here. In case of IIS it manages the request and give control to dotnet on a particular thread. In absence of IIS do we need to write code ourselves to manage incoming requests ( say on a tcp port ) or WCF provides some classes to manage request and spawn threads to process each thread. I am aware that in case of self hosting this needs to be a windows service. In case of self hosting how can me tap on the number of simultaneous requests on the sever , it can be managed by limiting the thread pool ? or we can configure this via wcf ? Thanks dc

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• How to make WPF Listview works same as Photoshop layer

  - by Youngjae

  As we can see in Photoshop layer window (or other image editting tool also), it has several features: groups with folder-like header (collapse/expandable) ungroupped item (no header) sort "manually" by dragging. In case of No 1, I made groupped item with expander control. (ref: http://www.dotnetspark.com/kb/1753-expand-and-collapse-listbox-group-header.aspx) In case of No 3, Sort manually can be solved with this code. (ref: codeproject.com/kb/WPF/ListViewDragDropManager.aspx) but I don't know how to list ungroupped items together. Of course, the ungroupped items may not have a header. I am using ICollectionView and MVVM. Does ICollectionView can make it?

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• httpCookie cause the page not to load

  - by jvcoach23

  I'm using VS 2010, vb.net and asp 3.5. I have a simple default.aspx page that has Dim ctx As HttpContext = HttpContext.Current Dim cookie As HttpCookie = ctx.Request.Cookies("SessionGUID") Me.lbl1.Text = cookie.Value.ToString the page loads fine when running it from within VS, but when i build the site and run the page, it doesn't load.. it doesn't give me an error, but nothing shows up. This is what the view source looks like HTMLHEAD META content="text/html; charset=windows-1252" http-equiv=Content-Type/HEAD BODY/BODY/HTML I took out the < in the tags so that it would display here... If i take out the Me.lbl1.Text = cookie.Value.ToString the page loads fine.. All i'm putting to the page is some text and the label control. anyone have any ideas

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• Auto wiring of Property does not work for me

  - by Xabatcha

  Hi All, In my Asp.Net project I wanna use Property Auto-wiring, e.g. for my ILogger. Basically I placed Property into my base classes. One for Page, one for UserControl. Like below. public class UserControlBase : UserControl { public ILogger CLogger { get; set; } .... } However when calling in inherited control, logger is null. I checked the container and it'a definitely set. Below is setting which is called from Global.asax. public static void SetupForIoC() { Debug.WriteLine("SetupForIoC"); ObjectFactory.Initialize(x => { x.FillAllPropertiesOfType<ILogger>().TheDefaultIsConcreteType<EntLibLogger>().AsSingletons(); x.FillAllPropertiesOfType<ISiteService>().TheDefaultIsConcreteType<SiteService>().AsSingletons(); }); Debug.WriteLine(ObjectFactory.WhatDoIHave()); } Thanks for any advice, tip? X.

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• Duplicate ID/indexes and looping

  - by Justin Alexander

  I realize having two elements in the same html doc with the same ID is wrong, bad, immoral, and will lead to global warming. But... I'm trying to write an XSS widgit, so I really have no control over the quality of the parent web page. I loop through document.images to retrieve a list of images on the page. I perform an action on each one. for(img in document.images){ ... } i've also tried for(var i=0;i<document.images.length;i++){ ... } in both cases it allows me to loop through all of the elements, BUT when trying trying to reference an object with a duplicate ID, I always get the first (in order of the html). When using debugger in IE8 i'm able to see that both elements ARE listed, but that they both have the same index (in IE the index of the document.images is either sequential or matches the image ID) Does anyone have a better solution?

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• value was "" blank when refreshing the page manually

  - by crisgomez

  Hi, I have a problem regarding the maintaining of value when page was refresh.I assign a value into a hidden control using javascript below: function displaytab(tabID) { var tabId = document.getElementById("ctl00_MainContent_tabId"); switch (tabID) { case 1: tabId.value=1; break; case 2: tabId.value=2; break; case 3: tabId.value=3; break; default: tabId.value=0; break; } but when i refresh the page the value was ("") blank. Is there any way how to resolved this issue? or what is the best way to do this?

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• Autoformat pom.xml without using m2eclipse plugin

  - by hashable

  I don't use the Eclipse maven plugin while developing in Eclipse. I generate my Eclipse classpath externally using the following command: mvn eclipse:eclipse This has worked fine for quite some time and I am not inclined to add a maven plugin. However, I would like to be able to "autoformat" my pom.xml file. My pom.xml is not showing up as a "Source" file and therefore the contextual "Source" menu doesn't show up. Control-Shift-F doesn't work either. Is there a way to do this without installing the m2eclipse plugin? Is there any other generic "XML Editor" plugin that can help with this?

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• Visual Studio 2008 hangs while opening aspx/ascx file.

  - by rafek

  Hi all! I've issue with VS08. I've got Web Application project (vb.net). Whenever I try to open an aspx or ascx (in Source view - just double clicking on Solution Explorer) the file opens, but VS hangs and is not responding. The only way to restart VS is then by killing it's process. And it happens all the time with these types of files. :/ Reinstall didn't work. In addition, the only plugin I've installed with this instance of VS is ClearCase source control plugin.

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• How can I retrieve the values of controls in the form that posted?

  - by Mike at KBS

  I know this has got to be the simplest-sounding question ever asked about ASP.Net but I'm baffled. I have a form wherein my visitor will enter name, address, etc. Then I am POSTing that form via the PostBackUrl property of my Submit button to another page, where the fields are supposed to be all re-formed into new hidden fields, then POSTed again to Paypal. My problem is I cannot get at the values entered by the visitor in the original page. Any time I put in "runat='server'", ASP.Net completely changes the ID of the control, making it impossible to figure out how to access. In the POSTed form I tried Request.Form["_txtFirstName"] and that turned up null. Then I tried ((TextBox)PreviousPage.FindControl("_txtFirstName")).Text and that was null, too. I've tried variations on those. I cannot figure out how I'm supposed to get at these controls. Why does this stuff need to be so difficult?

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• Multi-tab application (C#)

  - by Zach

  Hi, I'm creating a multi-tabbed .NET application that allows the user to dynamically add and remove tabs at runtime. When a new tab is added, a control is added to it (as a child), in which the contents can be edited (eg. a text box). The user can perform tasks on the currently visible text box using a toolbar/menu bar. To better explain this, look at the picture below to see an example of what I want to accomplish. It's just a mock-up, so it doesn't actually work that way, but it shows what I want to get done. Essentially, like a multi-tabbed Notepad. View the image here: http://picasion.com/pic15/324b466729e42a74b9632c1473355d3b.gif Is this possible in .NET? I'm pretty sure it is, I'm just looking for a way that it can be implemented.

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• Problem: connecting to drupal on hostgator without pointed domain.

  - by Kirk

  I need to connect to drupal on a website that I'm programming on a hostgator account. The website that I'm working on currently receives a lot of traffic, and I would like to make sure that it is fully functional before I launch the new website. The old website was programmed with .asp which hostgator doesn't support, and the old webhost doesn't support drupal or .php which are integral to the new web design. Drupal 6 has been freshly installed on my website, but when I try to login, it redirects me to http://gator83.hostgator.com/?q=node&destination=node instead of the drupal control panel. Is it possible to work around this? Thank you in advance.

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• How can a string timestamp with hours 0 to 24 be parsed

  - by user897052

  I am trying to parse a string timestamp of format "yyyyMMddHHmmss" with DateTime.ParseExact(). The catch is I must allow for an hour value of "24" (i.e. hours can be from 0 to 24; Note: I can't control the input values.) and, of course, that results in an exception. Are there any settings/properties I can set instead of manually parsing/using regex's? If not, any efficient parsing ideas? ex. DateTime.ParseExact("20120911240000", "yyyyMMddHHmmss", System.Globalization.CultureInfo.InvariantCulture); hour 24 means hour 0 of next day (so day + 1, hour = 0)

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• Xcode 3.1.2 locks up when loading C++ project...?

  - by Stabledog

  I have a project which builds correctly from the command line. On one of my Macs (10.5) running Xcode 3.1.2, I can load it and build it in the Xcode IDE. On my other Mac (same configuration of software), Xcode sometimes loads the project, but always locks up with a spinning beach ball at some point before the build is done. Sometimes this occurs as the project is loaded, sometimes late in the build. I've tried doing a 'clean' on the project, I've tried pulling in the source code fresh from source control. So far, no luck -- I have to kill Xcode and in effect, cannot develop on this particular Mac. I've uninstalled and reinstalled Xcode. Any clues?

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• MVC2 html dropdownlist is invisible

  - by Deb

  I am just trying to populate a html.dropdown list using mvc2 in VS2008. But the control is not displayed at all. Here is my code public ActionResult Index() { ViewData["Time"] = DateTime.Now.ToString(); var mdl = new List<SelectListItem>(); mdl.Add(new SelectListItem { Value = "1", Text = "Module One" }); mdl.Add(new SelectListItem { Value = "2", Text = "Module Two" }); ViewData["moduleList"] = new SelectList(mdl,"Value", "Text"); return View("MainMenu"); } and here is the markup <div> <%Html.DropDownList("moduleList", (IEnumerable<SelectListItem>)ViewData["moduleList"]); %> </div> Where did i go wrong ?

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• How to scan and count controls present in DataAccessPage of Access DataBase programmatically?

  - by Suman

  As per my application (Vb.net), it scans the Access database for Active-X controls. It is working now for Report form and Access Form. The code to find out controls is as follows: oReportCtls = oReport.Controls For Each oReportCtl In oReportCtls If oReportCtl.ControlType = 119 Then 'Activex Control' intReportObjectCount = intReportObjectCount + 1 End If Next But for DataAccessPages I am not getting any reference for Controls. Need Help: Please let me know it is possible or not? If yes, then please provide me some reference or example. Many Many Thanks, Sugam

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• Eclipse error: This project needs to migrate WTP metadata

  - by larf311

  We started a Web Project in Eclipse 3.2 a ways back and we've since upgraded to Eclipse 3.4 but now the Project has the error: "This project needs to migrate WTP metadata" We've tried right-clicking and doing the "quick-fix" which is in fact to Migrate WTP Metadata. Unfortunately nothing happens and the error remains. We can delete that error from the Problems and everything works as it should, however, every time we re-import the project from source control, the error re-appears. Any ideas on how to permanently get rid of this error or how to ACTUALLY migrate WTP metadata? UPDATE: Everyone, please vote on the answer that works for you rather than adding your own answer that references a previous person's answer.

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• CUDA driver installation on a laptop with nVidia NVS140M card

  - by stanigator

  I'm trying to first figure out if my computer contains a CUDA-enabled card. It has an nVidia NVS 140M card, but I can't seem to figure out if it is the 128 MB version or 256 MB version. On the laptop purchase receipt, I found out that I ordered the 128 MB version, but the control panel description of the card said otherwise as shown below: When I ran the CUDA driver from nVidia's site, it cannot find a hardware compatible with CUDA (even though the product series is CUDA-enabled, the card does not have 256 MB minimum of memory to do so). What would be your recommendations in this case with trying to use CUDA on this computer (I'm not sure if nothing can be done at this point)? Thanks in advance.

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• How to find image width and height dynamically and specify height, width attibutes if over certain d

  - by Wbdvlpr

  Hi, I display some data on my website and one of the data feed elements is an image. [title] => Product title [description] => some description [image] => www.some-domain.com/product-image/p12345.jpg I then display this image using <img alt="product" src="<?=$data['image']?>" /> Most of the images are 80x80, 120x100 or other less than 150 in width, which perfectly fit in the website template, but some of them are quite large such as 800x600 which distort the layout. I want a control on these types. I tried to set WIDTH="150", but as the width vary they dont look good. I was thinking If I could set a fixed width to images, say, larger than 250px then I can live with it for now. Any ideas how to achieve this? Thanks

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• Gridview changing text in a button column

  - by Bob Avallone

  I am working in asp.net using the gridview control. I have a button column that I create dynamically as such: ButtonField bfSelect = new ButtonField(); bfSelect.HeaderText = "View"; bfSelect.ButtonType = ButtonType.Link; bfSelect.CommandName = "View"; bfSelect.Text = "View"; grdAttachments.Columns.Add(bfSelect); The text on the button is the same for every row. I was wondering if there was any way to have the text be different for different rows depending on a condition. When I try to look at the text property of a particular row it is blank, if I try to set it, it does not change. Thanks in advance. Bob

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• DataReader or DataSet when pulling multiple recordsets in ASP.NET

  - by Gern Blandston

  I've got an ASP.NET page that has a bunch of controls that need to be populated (e.g. dropdown lists). I'd like to make a single trip to the db and bring back multiple recordsets instead of making a round-trip for each control. I could bring back multiple tables in a DataSet, or I could bring back a DataReader and use '.NextResult' to put each result set into a custom business class. Will I likely see a big enough performance advantage using the DataReader approach, or should I just use the DataSet approach? Any examples of how you usually handle this would be appreciated.

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• Dynamically reducing image dimension as well as image size in C#

  - by hanesjw

  I have an image gallery that is created using a repeater control. The repeater gets bound inside my code behind file to a table that contains various image paths. The images in my repeater are populated like this <img src='<%# Eval("PicturePath")' %>' height='200px' width='150px'/> (or something along those lines, I don't recall the exact syntax) The problem is sometimes the images themselves are massive so the load times are a little ridiculous. And populating a 150x200px image definitely should not require a 3MB file. Is there a way I can not only change the image dimensions, but shrink the file size down as well? Thanks!

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