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  • Passing jQuery object and WebMethod return value to an OnSuccess function

    - by iboeno
    I am calling a WebMethod from this code: if($(this).attr("checked")) { .. MyWebMethod(variable1, variable2, onSuccessFunction); } The MyWebMethod returns an integer, and I want to set $(this).attr("id") of the jQuery object above to the returned integer. Basically, I'm trying to do the equivalent of an MVC Ajax.ActionLink...AjaxOptions {UpdateTargetID =...} However, I can't figure out how to get both a reference to $(this) as well as the returned value. For example, if I do: MyWebMethod(variable1, variable2, onSuccessFunction($(this))); I can succesfully manipulate the jQuery object, but obviously it doesn't have the return value from the MyWebMethod. Alternatively, the first code block with a method signature of onSuccessFunction(returnValue) has the correct return value from MyWebMethod, but no concept of the jQuery object I'm looking for. Am I going about this all wrong?

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  • Anyone successfully using Commission Junction API ?

    - by Mauricio Scheffer
    Is anyone successfully using the CJ web services? I just keep getting java.lang.NullPointerExceptions even though my app is .net (clearly their errors). CJ support doesn't even know what a web service is. I googled and found many people getting this or other errors. Question is: is it a temporary problem or am I doomed to parse manually downloaded reports for eternity? The specific API I'm trying to use is the daily publisher commission service. Here is the WSDL. Links: CJ web services home API Reference

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  • linq where clause and count result in null exception.

    - by nestling
    The code below works unless p.School.SchoolName turns out to be null, in which case it results in a NullReferenceException. if (ExistingUsers.Where(p => p.StudentID == item.StaffID && p.School.SchoolName == item.SchoolID).Count() > 0) { // Do stuff. } ExistingUsers is a list of users: public List<User> ExistingUsers; Here is the relevant portion of the stacktrace: System.NullReferenceException: Object reference not set to an instance of an object. at System.Linq.Enumerable.WhereListIterator1.MoveNext() at System.Linq.Enumerable.Count[TSource](IEnumerable1 source) How should I handle this where clause? Thanks very much in advance.

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  • Windows7 IIS7: zips don't have php5isapi.dll Can I use php.dll instead?

    - by Pete Alvin
    The page: How to Install PHP 5.2 on IIS 7and Windows Vista (and a few others) reference a mysterious php5isapi.dll which is not in the Windows install, or the zip files: php-5.3.2-Win32-VC9-x86.zip - VC9 x86 Thread Safe php-5.3.2-nts-Win32-VC9-x86.zip - VC9 x86 Non Thread Safe There was another post on stackoverflow that said it's obsolete and replaced by "fastapi" but no instructions mention this. I did find a php.dll in the zip file. Can I use that instead of php5isapi.dll? It's very frustrating trying to install basic PHP5 on Windows with MySQL.

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  • Can the MVVM-Light ViewModelLocator be used in nested ViewModels?

    - by dthrasher
    The Visual Studio 2008 Designer doesn't seem to like UserControls that reference the MVVM-Light ViewModelLocator. I get an error message like: Could not create an instance of type 'MyUserControl'. For example, the following XAML will cause this behavior if MyUserControl uses the ViewModelLocator to establish its DataContext. <Page x:Class="MyProject.Views.MainView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:Views="clr-namespace:MyProject.Views" > <Grid> <Views:MyUserControl/> </Grid> </Page> Is the ViewModelLocator only meant to be used in top-level Views?

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  • client ip address in ASP.NET (.asmx) webservices

    - by Zain Shaikh
    I am using ASP.Net (.asmx) web services with Silverlight. since there is no way to find client ip address in Silverlight, therefore I had to log this on service end. these are some methods I have tried: Request.ServerVariables(”REMOTE_HOST”) HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"] HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; Request.UserHostAddress() Request.UserHostName() string strHostName = System.Net.Dns.GetHostName(); string clientIPAddress = System.Net.Dns.GetHostAddresses(strHostName).GetValue(0).ToString(); All the above methods work fine on my local system, but when I publish my service on production server. it starts giving errors. Error: Object reference not set to an instance of an object. StackTrace: at System.Web.Hosting.ISAPIWorkerRequestInProc.GetAdditionalServerVar(Int32 index) at System.Web.Hosting.ISAPIWorkerRequestInProc.GetServerVariable(String name) at System.Web.Hosting.ISAPIWorkerRequest.GetRemoteAddress() at System.Web.HttpRequest.get_UserHostAddress()

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  • MSB3422 Failed to retrieve VC project information through the VC project engine object model. MSB342

    - by Scott Langham
    I'm getting the following errors from MSBuild while trying to build a solution: C:\dev\MySln.sln : warning MSB3422: Failed to retrieve VC project information through the VC project engine object model. Unable to determine default tool for the specified file configuration. C:\dev\MySln.sln : warning MSB3425: Could not resolve VC project reference "C:\dev\MyProj.vcproj". Have you got any ideas on what's causing this? I've seen other postings about similar, but different errors such as when the MSB3422 error has a different message and shows "Illegal characters in path.", but I haven't seen any useful information about how to solve the error I'm getting where it says "Unable to determine default tool for the specified file configuration.". Thanks. I found this, but it doesn't really help: http://social.msdn.microsoft.com/Forums/en-US/msbuild/thread/b470f111-9321-4b43-8bd1-7fcf67c2d402

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  • Javascript upload in spite of same origin policy

    - by Brian M. Hunt
    Can one upload files to a domain other than the domain a script originates from? For example, suppose you're hosting files on www.example.com, and you want to upload files to uploads.example.com, would the following script violate the same origin policy (using uploadify): <!-- from http://www.example.com/upload.html --> <input id="fileInput" name="fileInput" type="file" /> <script type="text/javascript">// <![CDATA[ $(document).ready(function() { $('#fileInput').uploadify({ 'uploader' : 'uploadify.swf', 'script' : 'http://upload.example.com/uploadify.php', 'cancelImg' : 'cancel.png', 'auto' : true, 'folder' : '/uploads' }); }); // ]]></script> I haven't seen a clear reference on the same origin policy that would indicate one-way or the other whether the this would be an issue with any browsers.

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  • Decoding bitmaps in Android with the right size

    - by hgpc
    I decode bitmaps from the SD card using BitmapFactory.decodeFile. Sometimes the bitmaps are bigger than what the application needs or that the heap allows, so I use BitmapFactory.Options.inSampleSize to request a subsampled (smaller) bitmap. The problem is that the platform does not enforce the exact value of inSampleSize, and I sometimes end up with a bitmap either too small, or still too big for the available memory. From http://developer.android.com/reference/android/graphics/BitmapFactory.Options.html#inSampleSize: Note: the decoder will try to fulfill this request, but the resulting bitmap may have different dimensions that precisely what has been requested. Also, powers of 2 are often faster/easier for the decoder to honor. How should I decode bitmaps from the SD card to get a bitmap of the exact size I need while consuming as little memory as possible to decode it?

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  • Facebook Fanpage Wallposting from C# App

    - by brinthhillerup
    Hello Guys I have the following challenge at hand: I have a fanpage for a apartment renting company. They would like to autoupdate their fanpage everytime a new apartment is added to the system. The system is developed in C# ASP.NET 3.5. I have downloaded the Facebook C# API From codeplex. Have anyone done this, or know how to do it? UPDATE: So far I have tried the following: FacebookSession session = new Facebook.Session.ConnectSession(myKey,mySecretKey); Stream stream = new Stream(session); stream.Publish("Testing", null, null, null, 107010519323711); I get a null reference Exception when I call Stream.Publish

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  • Changing data in a django modelform

    - by Matt Hampel
    I get data in from POST and validate it via this standard snippet: entry_formset = EntryFormSet(request.POST, request.FILES, prefix='entries') if entry_formset.is_valid(): .... The EntryFormSet modelform overrides a foreign key field widget to present a text field. That way, the user can enter an existing key (suggested via an Ajax live search), or enter a new key, which will be seamlessly added. I use this try-except block to test if the object exists already, and if it doesn't, I add it. entity_name = request.POST['entries-0-entity'] try: entity = Entity.objects.get(name=entity_name) except Entity.DoesNotExist: entity = Entity(name=entity_name) entity.slug = slugify(entity.name) entity.save() However, I now need to get that entity back into the entry_formset. It thinks that entries-0-entity is a string (that's how it came in); how can I directly access that value of the entry_formset and get it to take the object reference instead?

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  • Is it a bad idea if equals(null) throws NullPointerException instead?

    - by polygenelubricants
    The contract of equals with regards to null, is as follows: For any non-null reference value x, x.equals(null) should return false. This is rather peculiar, because if o1 != null and o2 == null, then we have: o1.equals(o2) // returns false o2.equals(o1) // throws NullPointerException The fact that o2.equals(o1) throws NullPointerException is a good thing, because it alerts us of programmer error. And yet, that error would not be catched if for various reasons we just switched it around to o1.equals(o2), which would just "silently fail" instead. So the questions are: Why is it a good idea that o1.equals(o2) should return false instead of throwing NullPointerException? Would it be a bad idea if wherever possible we rewrite the contract so that anyObject.equals(null) always throw NullPointerException instead?

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  • Using HTMLAgility Pack to Extract Links

    - by Soham
    Hi Folks, Consider this simplest piece of code: using System; using System.Collections.Generic; using System.Linq; using System.Text; using HtmlAgilityPack; namespace WebScraper { class Program { static void Main(string[] args) { HtmlDocument doc = new HtmlDocument(); doc.LoadHtml("http://www.google.com"); foreach (HtmlNode link in doc.DocumentNode.SelectNodes("//a[@href]")) { } } } } This effectively doesnt do anything at all, and is copied/inspired from various other StackOverflow questions like this. When compiling this, there is a runtime error which says "Object reference not set to an instance of an object." highlighting the foreach line. I can't understand, why the environment has become irritable to this humble,innocent and useless piece of code. I would also like to know, does HTMLAgilityPack accept HTML classes as nodes?

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  • Does OpenRasta support Mono?

    - by Earlz
    Although Mono support is not a big deal for us, I figured OpenRasta supported it cause it has some commit messages about it.. Well, I tried to build it on Mono and got Ambiguous type references(after manually creating like 10 obj directories.) So I tried just using the prebuilt assemblies I had on hand and that gave me an Object Reference Not Set To Instance of an Object (the usual error I have with mono.. ) at OpenRasta.Diagnostics.DebuggerLoggingTraceListener.WriteAll (using xsp2) Is there official support for Mono or am I missing some sorta extra step for deployment?

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  • WPF Theming and dynamic controls

    - by Eduard
    Hello, I am trying to add control to ContentPresenter on then run, but control I've added does not apply theme. Theres is code with reference to theme in xaml file: <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="Resources/PocGraphDataTemplates.xaml" /> </ResourceDictionary.MergedDictionaries> Also I've tried to set style in code behind, does not work: this.graphLayout.Content = analyzerViewModel.AnalyzedLayout = new PocGraphLayout() { LayoutAlgorithmType = "FR" }; ResourceDictionary rd = new ResourceDictionary(); rd.Source = new Uri("Resources/PocGraphDataTemplates.xaml", UriKind.Relative); analyzerViewModel.AnalyzedLayout.Style = new Style(typeof(PocGraphLayout)); analyzerViewModel.AnalyzedLayout.Style.Resources.MergedDictionaries.Add(rd); When control was static everything worked fine: <ViewModel:PocGraphLayout x:Name="graphLayout" Graph="{Binding Path=Graph}" LayoutAlgorithmType="{Binding Path=LayoutAlgorithmType}" Sample:LayoutManager.ManagedLayout="True" OverlapRemovalAlgorithmType="FSA" HighlightAlgorithmType="Simple" /> Any ideas? PS. I am newbie in wpf.

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  • Visual studio 2010 MVC 2 (2008 project imported) - publish fails - System.Web.Routing.RouteValueDict

    - by Maslow
    Error 7 The type 'System.Web.Routing.RouteValueDictionary' exists in both 'c:\Program Files\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\System.Web.dll' and 'c:\WINNT\assembly\GAC_MSIL\System.Web.Routing\3.5.0.0__31bf3856ad364e35\System.Web.Routing.dll' c:\Projects\VS\solutionfolder\projectfolder\Views\group\List.aspx 44 ProjectName The project utilizes T4MVC.tt if that is relevant. Also Visual studio 2010 ultimate. I did not upgrade the target .net framework to 4.0 because my host will not support this for ~24 hours. I have a .Tests project in the same solution that says it is targeting .net 4.0 but it still won't build even with that unloaded, same message.

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  • Java Generics Type Safety warning with recursive Hashmap

    - by GC
    Hi, I'm using a recursive tree of hashmaps, specifically Hashmap map where Object is a reference to another Hashmap and so on. This will be passed around a recursive algorithm: foo(String filename, Hashmap<String, Object> map) { //some stuff here for (Entry<String, Object> entry : map.entrySet()) { //type warning that must be suppressed foo(entry.getKey(), (HashMap<String, Object>)entry.getValue()); } } I know for sure Object is of type Hashmap<String, Object> but am irritated that I have to suppress the warning using @SuppressWarnings("unchecked"). I'll be satisfied with a solution that does either a assert(/*entry.getValue() is of type HashMap<String, Object>*/) or throws an exception when it isn't. I went down the Generics route for compile type safety and if I suppress the warning then it defeats the purpose. Thank you for your comments, ksb

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  • XML documentation to context sensitive help

    - by Yonas
    These days a number of commercial and open source tools have been developed for this purpose. However(unfortunately), non of them meet my requirement for specific problem I am dealing with. Currently, I am working on a project that exposes a different classes and functions to user as scripting interface. the user can use the objects from custom scripting interface and call methods to solve some specific problem. The problem I am facing is users of my classes need some sort of documentation in order to write their script efficiently. To address this problem am planing to use the compiler generated XML file to provide context sensitive help, which allows users to mouse over on any of the controls and corresponding methods from the GUI and read the reference documentation of the class/method. Now ... here are my questions: Can I get the sample source code? Can any one give me someone point me to some sort of best approach to address the problem?

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  • Is it a good object-oriented-design practice to send a pointer to private data to another class?

    - by Denis
    Hello everyone, There is well known recommendation not to include into class interface method that returns a pointer (or a reference) to private data of the class. But what do you think about public method of a class that sends to another class a pointer to the private data of the first one. For example: class A { public: void fA(void) {_b.fB(&_var)}; private: B _b; int _var; }; I think that it is some sort of data hiding damage: the private data define state of their own class, so why should one class delegate changes of its own state to another one? What do you think? Denis

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  • How do I modify my WCF service to work with ASP.NET pages?

    - by Scott
    I created a WCF service (.NET 3.5) that grabs data from a db and returns a list of objects. It works just fine. I tested it using the WCFTestClient application and got the desired results. Now, I tried to create an ASP.NET web application and consume the service. After enabling <serviceDebug includeExceptionDetailInFaults="true"/> in the config file, the error message is "Object reference not set to an instance of an object." How do I modify the service to work with ASP.NET? Thanks!

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  • ASP.NET / WCF - Execute Server.Execute Asynchronously

    - by user208662
    Hello, I need to run the HttpContext.Current.Server.Execute method in my ASP.NET application. This application has a WCF operation that does some processing. Currently, I am to do my processing correctly from within my WCF operation. However, I would like to do this asynchronously. In an error to attempt this asynchronously, I tried running Server.Execute in the DoWork event handler of a BackgroundWorker. Unfortunately, this throws an error that says "object reference not set to an instance of an object" The HttpContext element is not null. I checked that. It is some property nested in the HttpContext object that appears to be null. However, I have not been able to identify why this won't work. It happens as soon as I move the processing to the BackgroundWorker thread. My question is, how can I asynchronously execute the Server.Execute method? Thank you,

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  • Java-Swing: Change getSource() in ActionListener

    - by Brandon
    I have a class that contains a JButton. This can't be changed. The problem is this: The actionListener calls getSource() and gets the JButton, not the container class. Can I change what getSource retrieves, before the actionListener is added? OR can JButtons have a variable reference to its container? I can't make a class extend a JButton. It caused bugs for drawing purposes... story of my week.

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  • java generics covariance

    - by soocracy42
    I am having trouble understanding the following article: http://www.ibm.com/developerworks/java/library/j-jtp01255.html Under, Generics are not covariant the author states, Because ln is a List, adding a Float to it seems perfectly legal. But if ln were aliased with li, then it would break the type-safety promise implicit in the definition of li -- that it is a list of integers, which is why generic types cannot be covariant. I can't understand the part where it says "if ln were aliased with li". What does the author means by alias?(reference?). The code snippet above the quoted line seems to illustrate WHAT is illegal in java and not WHY. It would be very helpful to me if somebody could explain with an example. Thanks in advance.

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  • jQuery Hover Problem - Hover Triggers on Mouse Move

    - by majman
    For reference: http://www.favsav.com/-public You'll notice that if you hover over a list item, the meta data slides up. If you leave your mouse still on top, and then move a smidgen to the left or right, it triggers again. There's some other silliness going on if you move around The code is pretty simple: $('li.post').hover(function(){ $(this).find('.meta').slideDown('fast'); }, function(){ $(this).find('.meta').slideUp('fast'); }) Any idea why things are behaving like this? This seems to only be happening in Firefox (i'm using 3.5.5 on OSX) UPDATE After restarting Firefox, all is well! Thanks for the input!

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  • Replace empty cells with logical 0's before cell2mat in MATLAB

    - by Doresoom
    I've got a cell array of empty cells and ones that I want to convert to a logical array, where the empty cells are zeros. When I use cell2mat, the empty cells are ignored, and I end up with a matrix of solely 1's, with no reference to the previous index they held. Is there a way to perform this operation without using loops? Example code: for n=1:5 %generate sample cell array mycellarray{n}=1; end mycellarray{2}=[] %remove one value for testing Things I've tried: mylogicalarray=logical(cell2mat(mycellarray)); which results in [1,1,1,1], not [1,0,1,1,1]. for n=1:length(mycellarray) if isempty(mycellarray{n}) mycellarray{n}=0; end end mylogicalarray=logical(cell2mat(mycellarray)); which works, but uses loops.

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