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• How to be sure that my MVC project is running on the correct version after upgrade to vs2010?

  - by Stephane

  I just installed visual studio 2010 and upgraded my MVC project (which was running on MVC RC2 in visual studio 2008). visual studio 2010 updated every project file to target the framework 4.0. But the system.web.dll is pointing to C:\Program Files (x86)\Microsoft ASP.NET\ASP.NET MVC 2\Assemblies\System.Web.Mvc.dll in VS2010 object browser, I have every dll showing up in multiple versions as expected (3.5.0.0 and 4.0.0.0) except for the System.Web.Mvc dll which doesn't show any version and points to the path I mentioned above. Isn't this namespace point to the Framework folder like the System.Web namespace? C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETFramework\v4.0\System.Web.dll

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• How to create custom get and set methods for Linq2SQL object

  - by optician

  I have some objects which have been created automatically by linq2SQL. I would like to write some code which should be run whenever the properties on these objects are read or changed. Can I use typical get { //code } and set {//code } in my partial class file to add this functionality? Currently I get an error about this member already being defined. This all makes sense. Is it correct that I will have to create a method to function as the entry point for this functionality, as I cannot redefine the get and set methods for this property. I was hoping to just update the get and set, as this would mean I wouldn't have to change all the reference points in my app. But I think I may just have to update it everywhere.

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• problem with adding tool bar to UITableView

  - by chnet

  I'm writing a Navigation-Based iPhone app, and I'd like to have a UIToolBar docked at the bottom of my screen, with a UITableView scrolling between the tool bar and the navigation bar. I used [[self navigationController] setToolbarHidden:NO] and - (void)setToolbarItems:(NSArray *)toolbarItems animated:(BOOL)animated to set the UIToolBar. UIToolBar correctly shows in current view. If I drill down into a detail view using the button on navigation bar, i cannot return back to previous view. Before I add the tool bar, it can return back. I am wondering is there anything else should be noted when use UIToolbar?

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• touches event handler for UIImageView

  - by madmik3

  I am just getting stated with iPhone development and can't seem to find the answer I am looking for what I want to do. It seems like I should be able to programmatically create a UIImageView and then set up an event handler for it's touch functions. in c# i would have something that looks like Button b = new Button(); b.Click+= my handler code right now I have this CGRect myImageRect = CGRectMake(0.0f, 0.0f, 141.0f, 151.0f); UIImageView *myImage = [[UIImageView alloc] initWithFrame:myImageRect]; myImage.userInteractionEnabled = YES; [myImage setImage:[UIImage imageNamed:@"myImage.png"]]; myImage.opaque = YES; // explicitly opaque for performance [self.view addSubview:myImage]; [myImage release]; What do I need to do to override the touch events? thanks

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• Simplest Way to Process Basic HTTPS GET File Requests?

  - by stormin986

  All I need to do is download some basic text-based and image files from a web server that has a self-signed SSL certificate. I have been trying to figure out how to use HttpClient to do this, but getting the SSL to work is a nightmare that seems to be way too much trouble for such a simple task. Is there a better way to perform these file downloads? Perhaps through a WebView or Browser feature? Reinventing the wheel of making a simple HTTPS GET request is a major pain, and is significantly holding up my development schedule.

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• LINQ query and lambda expressions

  - by user329269

  I'm trying to write a LINQ query and am having problems. I'm not sure if lambda expressions are the answer or not but I think they may be. I have two combo boxes on my form: "State" and "Color". I want to select Widgets from my database based on the values of these two dropdowns. My widgets can be in one of the following states: Not Started, In Production, In Finishing, In Inventory, Sold. Widgets can have any color in the 'color' table in the database. The 'state' combobox has selections "Not Sold," "In Production/Finishing", "Not Started," "In Production," "In Finishing," "In Inventory," "Sold." (I hope these are self-explanatory.) The 'color' dropdown has "All Colors," and a separate item for each color in the database. How can I create a LINQ query to select the widgets I want from the database based on the dropdowns?

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• Visual Studio: Add necessary using directives with macro

  - by Kiril

  Hello guys, I am trying to do the following. Imagine you are reading some LINQ article and you decide to copy/paste some code from the article to a newly created project. In most cases, if you directly compile you will probably get an error for missing a using directives or assembly reference. I am trying to optimize the process where I have to go each keyword, click on it with the mouse and hit Shift + Alt + F10 to add the using directive. I know that it is not that much pain, but for the sake of optimization, is it possible and at what cost? Best Regards, Kiril

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• UILabel reset after Autorotate

  - by MB

  Hi, I have a UILabel in a view that is set by calling a method against my view controller. The app is a TABBar app and the VC is in the MORE section. When I rotate the phone the label disappears (don't mind that) when I rotate back the label is showing all .......... (the value it is set to in the XIB) I added a line to set the label in the shouldAutoRotateToOrientation method lblProductTxt.titleLabel.text = self.productText; when autorotating what viewcontroller methods are being called. ?? the shouldAutoRotateToOrientation method doesn't get called when the VC is in the More section but when I move it it does get called but has no affect on the labeltext

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• window.focus() not working in firefox

  - by Nisanth

  Hi all i am developing a chat application ... i have multiple chat windows ... i want to know which windw contain new message ... i have the following code .. function getCount() { $.ajax({ type: "POST", url: baseUrl + '/Chat/count', data: "chat_id=" + document.ajax.chat_id.value, success: function(msg){ if(msg == 'new1') { self.focus(); } } }); } This code is work fine with IE but not in firefox...please give me a solution... the above code is in the same html

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• How to render a Partial from a Model in Rails 2.3.5

  - by empire29

  I have a Rails 2.3.5 application and Im trying to render several Partials from within a Model (i know, i know -- im not supposed to). The reason im doing this is im integrating a Comet server (APE) into my Rails app and need to push updates out based on the Model's events (ex. after_create). I have tried doing this: ActionView::Base.new(Rails::Configuration.new.view_path).render(:partial => "pages/show", :locals => {:page => self}) Which allows me to render simple partials that don't user helpers, however if I try to user a link_to in my partial, i receive an error stating: undefined method `url_for' for nil:NilClass I've made sure that the object being passed into the "project_path(project)" is not nil. I've also tried including: include ActionView::Helpers::UrlHelper include ActionController::UrlWriter in the Module that contains the method that makes the above "render" call. Does anyone know how to work around this? Thanks

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• Retrieve Google Calendar Events

  - by Don

  Hi, I'm using the Java API for Google Calendar. The documents show the following example of how to retrieve events from a calendar: URL feedUrl = new URL("http://www.google.com/calendar/feeds/[email protected]/private/full"); CalendarService myService = new CalendarService("exampleCo-exampleApp-1"); myService.setUserCredentials("[email protected]", "mypassword"); // Send the request and receive the response: CalendarEventFeed myFeed = myService.getFeed(feedUrl, CalendarEventFeed.class); This will retrieve all events from the primary calendar of the [email protected] account. However, I need to retrieve events from a secondary calendar. I already have a reference the CalendarEntry object that represents the secondary calendar, but I still can't figure out how to get events from it. I suspect I can do this using the same code as above, but I just need to change the URL to something else. Thanks, Donal

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• jQuery - Add click event to Div and go to first link found

  - by LuckyShot

  Hi guys, I think I've been too much time looking at this function and just got stuck trying to figure out the nice clean way to do it. It's a jQuery function that adds a click event to any div with a click CSS class found in the page and when clicked it redirects the user to the first link found in the div. function clickabledivs() { $('.click').each( function (intIndex) { $(this).bind("click", function(){ window.location = $( "#"+$(this).attr('id')+" a:first-child" ).attr('href'); }); } ); } The code simply works although I'm pretty sure there is a fairly better way to accomplish it, specially the selector I am using: $( "#"+$(this).attr('id')+" a:first-child" ) looks too long and slow. Any ideas? Please let me know if you need more details. Thanks! PS: I've got some jQuery benchmarking reference from Project2k.de here: http://blog.projekt2k.de/2010/01/benchmarking-jquery-1-4/

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• No method found compiler warning

  - by Magic Bullet Dave

  I have create a class from a string, check it is valid and then check if it responds to a particular method. If it does then I call the method. It all works fine, except I get an annoying compiler warning: "warning: no '-setCurrentID:' method found". Am I doing something wrong here? Is there anyway to tell the compiler all is ok and stop it reporting a warning? The here is the code: // Create an instance of the class id viewController = [[NSClassFromString(class) alloc] init]; // Check the class supports the methods to set the row and section if ([viewController respondsToSelector:@selector(setCurrentID:)]) { [viewController setCurrentID:itemID]; } // Push the view controller onto the tab bar stack [self.navigationController pushViewController:viewController animated:YES]; [viewController release]; Cheers Dave

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• Retweet button in asp.net site

  - by Zerotoinfinite

  Hi All, I am using asp.net 3.5 and C# for my personal blog site. I want to include retweet\tweet button on every post I have made, for this I have some query. I have made the account on twitter with my website name. As I want to check the individual tweets for each of my post, do I have to create new account for each post or do I have to include new list for each post. As my post has the url something like this www.mywebsite.net/myblog.aspx?id=9 , with this id I am recognising the post. Then how would I write the reference URL to the retweet button for each & every post. Thanks in advance. Please let me know if the information provided by me requires more details.

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• FFmpeg on iPhone

  - by gn-mithun

  Hello, I have downloaded ffmpeg libraries for iPhone and compiled them. My objective is to create a movie file from a series of images using ffmpeg libraries.The amount of documentation for ffmpeg on iphone is very less. I checked an app called iFrameExtractor, which does the opposite of what i want, it extracts frames from a video. On the command line there is a command called ffmpeg -f image2 -i image%d.jpg video.mov This turns a series of images into a video. I actually checked it on my mac and it works fine. What i wanted to know was how do we get the equivalent in iPhone. Or rather which class/api or method to call. There are a couple of examples of apps doing this on iPhone. Not sure whether they do it through ffmpeg though. Anyways, for reference "Time lapser" and "reel moments" Thanks in advance

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• UICollectionViewController nested in a normal UIViewController

  - by patrickS

  I have added a UICollectionView into a normal ViewController (MainViewController), and than created a UICollectionViewController Subclass (CollectionViewController) in the ViewController and connected the UICollectionView outlet with the CollectionViewController object _collectionViewController = [[CollectionViewController alloc] initWithCollectionViewLayout:_collectionView.collectionViewLayout]; _collectionView.dataSource = _collectionViewController; _collectionView.delegate = _collectionViewController; In the CollectionViewController I have setup an simple NSArray object and I show this one. This works as expected. But If I try to access the collectionview from the CollectionViewController via self.collectionview I am not able to access this one. I dont know what I have to do, to also connect the collectionview. I have build a sample ios-app it is available at: https://github.com/patricks/uicollectionview-problem The method - (void)outputSelectedCell in the UICollectionViewController always shows, that there is nothing selected… I hope you understand the problem.

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• dynamically created datagridview columns not accessible unless added to a form...why?

  - by deostroll

  We simply created a DataGridView control dynamically and bound it to a DataTable. We were tying to style certain columns. But, when we tried to access the columns we got a null reference. On further investigation we found that if we add the DataGridView control to the main form, and then try to access its columns, it works fine!!! Code which throws error: DataGridView gv = new DataGridView(); gv.DataSource = GetDataTable(); //binding it to datatable Debug.Assert(gv.Columns == null); Code which works fine: DataGridView gv = new DataGridView(); gv.DataSource = GetDataTable(); //binding it to datatable this.Controls.Add(gv); //adding to form Debug.Assert(gv.Columns == null); //the assertion fails! Why is this behaviour so? Is there a workaround for this?

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• How should objects be in a Java game.

  - by Gabriel A. Zorrilla

  EDIT: i just deleted the entire post and reformulated the question to be more generic. I want to do a simple strategy game: map, units. Map: one class. Units: another class, self drawn. Simple questions: How does an unit should redraw itself on the map. A unit should be a JPanel or similar Swing component (just to be able to manage them as an entity with its own mousehandlers) or can be another thing, without neglecting the fact that it should be an autonomous object with its own action handlers and fields. Is this map-units model correct of a simple game that would help me to learn in a fun way Java and OOP fundamentals. Thats it!

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• Loading remote assembly from the webservice with reflection

  - by Myat Htut

  I am using Assembly.LoadFrom within a web service to load assemblies from a web site. but the problem is it is in the virutal directory and the server.mappath parses the url like \share\mydll.dll and loadform method failed. Is there anyway to reference dll from the remote location? I've tried passing the url (http:\localhost\downloadable\mydll.dll) and again it got "Could not load file or assembly 'http:\localhost\downloadable\mydll.dll' or one of its dependencies. HTTP download of assemblies has been disabled for this appdomain. (Exception from HRESULT: 0x80131048)"

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• ASP.NET MVC- Bizarre problem - suddennly lost all LINQTO SQL data context objects

  - by MikeD

  I was making an edit to a long existing project. Specifically I added some fields to a table and had to delete the table from the LINQTOSQL designer and re-add it. doesn't Also had to do the same for a view. Mode some other code changes and went to build . Now my project won't build because it can't resolve any of the data context objects (all tables and views) in my code. I don't know what I did or how this happeened. I have many tables and views in the project's L2S data context so I don't wont to try and do over. Please any suggestions on how to resolve this problem are greatly appreciated. Desparate! The error messages I am getting are the familiar The type or namespace name 'equipment' could not be found (are you missing a using directive or an assembly reference?)

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• JavaScript function binding (this keyword) is lost after assignment

  - by Ding

  this is one of most mystery feature in JavaScript, after assigning the object method to other variable, the binding (this keyword) is lost var john = { name: 'John', greet: function(person) { alert("Hi " + person + ", my name is " + this.name); } }; john.greet("Mark"); // Hi Mark, my name is John var fx = john.greet; fx("Mark"); // Hi Mark, my name is my question is: 1) what is happening behind the assignment? var fx = john.greet; is this copy by value or copy by reference? fx and john.greet point to two diferent function, right? 2) since fx is a global method, the scope chain contains only global object. what is the value of this property in Variable object?

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• How to use sans-serif family, arial font in matplotlib, in ubuntu 12.04 lts?

  - by Shawn Wang

  I installed Ubuntu 12.04 LTS and the Scipy stack. I tried to set in matplotlibrc to use sans-serif family, arial font as default. While this has been working on my Windows computer, it reported the following warning: UserWarning: findfont: Font family ['sans-serif'] not found. Falling back to Bitstream Vera Sans (prop.get_family(), self.defaultFamily[fontext])) And it seems that the font is either not installed, or in a wrong name. I think I have installed the TrueType font (by googling), but I'd really appreciate it if anyone could help me to set the font family in the system with the name 'sans-serif' and find the relevant font files that belongs to this folder. Thank you! -Shawn

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• NSNotification center may not respond to -object ?

  - by blackkettle

  Hi, I'm trying to make simple use of the NSNotification center inside my iPhone application, but I seem to be doing something wrong in this case. I was under the impression that it was possible to retrieve an object associated with a particular message, or at least a reference to the object, but using the following example code I'm getting a warning, "NSNotification center may not respond to -object" - (void)addNewBookmark:(NSNotificationCenter *)notification { Bookmark *newBookMark = (Bookmark *)[notification object]; //Do some stuff with the bookmark object } Indeed, when I compile and run the code, basically nothing I try to do with the contents of the object actually gets carried out - it's simply ignored. The post code is as follows, - (IBAction)save:(id) sender{ //Sending the message with the related object [[NSNotificationCenter defaultCenter] postNotificationName:@"addNewBookmark" object:bookmark]; } and the bookmark object itself is just a dictionary. I also tried using the "userInfo" argument and passing the bookmark object through that, but the result was the same. How should I be doing this? What am I doing wrong?

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• ASP.NET Error when referencing a code-behind variable

  - by mattgcon

  I have an aspx page that is supposed to reference a code-behind variable but I am receiving an error of "The name [variable] does not exist in the current context" Here is the aspx code <%@ Control Language="C#" AutoEventWireup="true" Inherits="IPAM.Website.Controls.controls_event_header" Codebehind="event_header.ascx.cs" %> <%# strEventLink %> <h3><%# strEventDate %></h3> <%# strLinks %> Here is part of the aspx.cs code declaring those variables: public string strEventLink = ""; public string strEventDate; public string strLinks = ""; Here is the part of the aspx.cs code where it sets those variables: strEventLink = "<h2>" + parent.Name + "</h2>"; strLinks += "<p><font size=\"+1\"><a href=\"" + Page.ResolveUrl("~" + strScheduleLink) + "\"><b>" + strScheduleLinkText + "</b></a></font></p>\n"; strEventDate = ei.DateSpan; Please help me with this problem

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• c#-excel interop - create chart on workbook as opposed to in a sheet

  - by david.barkhuizen

  Using c# MS Excel interop library, I would like to programmatically create a new chart on the workbook, as opposed to on an a sheet. The code below allows me to create a chart on an existing _Worksheet (sheet). using using Microsoft.Office.Interop.Excel; _Worksheet sheet; (assume this is a reference to a valid _Worksheet object) ChartObjects charts = (ChartObjects)sheet.ChartObjects(Type.Missing); ChartObject chartObject = (ChartObject)charts.Add(10, 80, 300, 250); Chart chart = chartObject.Chart; chart.ChartType = XlChartType.xlXYScatter; Does anyone know how to rather go about creating a chart on the workbook (i.e. where the chart is the sheet).

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