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• C# Generic List constructor gives me a MethodAccessException

  - by evilfred

  Hi, I make a list in my code like so: List<IConnection> connections = new List<IConnection>(); where IConnection is my own interface. This is in a .NET 2.0 executable. If I run the code on my machine (with lots of .Net versions installed) it works fine. If I run it on my test machine (which only has .NET 3.5 SP1 installed) then I get a MethodAccessException in the System.Collections.Generic.List constructor. Any ideas what could be going wrong?

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• iOS get file size on disk

  - by F2_CMD

  I'm trying to get the size on disk of a file in iOS using Objective C. As of now I've been able to get the actual size of the file and other file information using NSFileManager and then getting the attributes attributesOfItemAtPath:error but not the size on disk. I also tried getting the file size from struct stat but again it doesn't give me size on disk.I tried using NSTask to make a call to du -h but iOS didn't allow me to fork other processes. Any ideas are welcome :) I know this questions is similar to many others but the difference is that I'm trying to do this in iOS and most of the methods used in other systems don't work here. Thanks

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• Iphone does not recognize reneweed ad hoc provising profile

  - by Amnon Dekel

  I installed a new version of an app we are developing, and also a new ad hoc provisioning profile (the old one had expired). I removed the app and profile from the phone and from itunes. Added the new profile and app to itunes and synched. All seemed well- the new profile was on the phone and the new app too. But when trying to launch the app, I get an alert: "the application cannot be opened because the provisioning profile has expired". I removed and reinstalled. I rebooted the phone. Nothing helped. Any ideas? Thanks

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• how to find out how much application memory django process is (or will be) taking?

  - by photographer

  There are different "Application memory" options (like 80MB...200MB) in django-friendly hosting called webfaction and I'm confused deciding which one I should buy. Could someone please walk me through the ideas on how to figure out how much memory my project might require (excluding operating system, the main apache server and the database servers memory requirements)? I understand in theory I'll need to perform some kind of load testing, but thought there might be ways to calculate that in advance with some simple/relatively easy understandable approach. I don't know how hard they enforce application memory usage limit, and another question is: what will happen if more users came to the site and more threads started than what I expected? Will the application crash? Or will delays just become uncomfortable? And - no, application is not ready yet (I can't measure anything right now). Development environment if it matters is Winodows 7, 64-bit. Hosting itself is some kind of Linux I think. (Sorry if it's not a stackoverflow question.)

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• jQuery Syntax Question, pretty easy I think..

  - by Fuego DeBassi

  Hi all, question: <script type="text/javascript"> $(document).ready(function() { $(".module .caption").hide(); $(".module").hover(function() { $(this).find(".caption").slideDown(); },function() { $(this).find(".caption").slideUp(); }); }); </script> This snippet works great for my purposes, the only caveat is that I need the .module hover function to simultaneously add a class of "under" to all other ".caption"'s that are not $this, and then remove them when the hover ends. So basically I don't want the "module" that is hovered to get the class, I want it to do exactly what I am showing here...sliding .caption up and down on end hover, I just want all other ".caption"s to get the under class when any ".module" is hovered. Just hitting a dead end with what I have been trying, want to do it in the same function. Any ideas?

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• HTML Line Spacing & Compact Code

  - by William Hand

  I was just wondering if there was a professional opinion on the matter of compact code. Does it really speed up page loading. Example: <body> <div id="a"></div> <div id="b"></div> </body> VS <body> <div id="a"></div> <div id="b"></div> </body> any ideas?

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• Expiring an IE session using WatiN

  - by Steve Wilkes

  I'm trying to write an acceptance test using WatiN which checks that a user is redirected to the login page if they navigate to a page after their session times out. I'm using WatiN's IE class for the browser, and trying the following: // 1. Login // 2. Do this: Browser.ClearCookies(); Browser.ClearCache(); // 3. Navigate to a different page But the user is always still logged in. Other info: I'm running the test through the NUnit GUI running as an administrator It's an ASP.NET MVC 3 site, using forms authentication and in-process session state I'm using IE9. If I manually clear all cookies in Chrome, the user is logged out If I manually clear all cookies in IE the user stays logged in If I call Browser.Eval("alert(document.cookie)"); in IE it alerts an empty string Given the above, I'm assuming this is a quirk with IE; any ideas how I can work around it?

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• WCF: How to find out when a session is ending?

  - by TomTom

  I have a WCF application that is using sessions. Is there any central event to get thrown when a session ends? How can I find out when a session is ending WITHOUT (!) calling a method (network disconnect, client crashing - so no "logout" method call)? The server is hosted as: [ServiceBehavior( InstanceContextMode = InstanceContextMode.PerSession, ConcurrencyMode = ConcurrencyMode.Reentrant, UseSynchronizationContext = false, IncludeExceptionDetailInFaults = true )] Basically because it is using a callback interface. Now, I basically need to decoubple the instance created from the backend store when the session terminates ;) Any ideas?

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• numeric sort with NSSortDescriptor for NSFetchedResultsController

  - by edziubudzik

  I'm trying to numerically sort data that's displayed in a UITableView. Before that I used such a sort descriptor: sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES selector:@selector(caseInsensitiveCompare:)]; now I'd like to use block to sort this numerically like this: sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES comparator:^NSComparisonResult(id obj1, id obj2) { return [((NSString *)obj1) compare:(NSString *)obj2 options:NSCaseInsensitiveSearch | NSNumericSearch]; }]; but it sorts the data incorectly causing conflict with section names in NSFetchedResultsController. So I tryed to immitate the old sorting with a comparator block - just to be sure that the problem is not caused by numeric comparison. The problem is that those lines: sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES comparator:^NSComparisonResult(id obj1, id obj2) { return [((NSString *)obj1) caseInsensitiveCompare:(NSString *)obj2]; }]; also cause the same error and I don't see why they won't sort the data in the same way the first method did... Any ideas?

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• XNA Multi-Thread Jitters

  - by Ice Phoenix

  Hi guys, brand new question. Just implemented multi-threading into my XNA game as it was unable to keep up with using 1 processor. MT is all implemented fine and everything, however the player seems to jitter all over the spot every now and then. I originally thought it was a loss of data between the update and render, but even when i did the player update in the render it did the same thing. It's not a memory/processor issue as i'm no where near maxing out my RAM or processors. It's strange aswell because none of the other entities in the game seem to have any of these issues. Any ideas at all??

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• user height and weight in sql

  - by Samuel

  We are planning to capture a user's height and weight and am looking for ideas on representing them in sql. I have the following questions in mind weight can be expressed in kilograms and grams and height in meters and centimeters, so should I capture them as a BigDecimal with an appropriate precision and scale or capture them as vanilla strings and do the manipulation in the user interface. Note: I am planning to capture the kilograms and grams separately in the user interface. should the metric of measurement be part of the sql (i.e. the end user might want to view this information in pounds, inches according to his preference) OR Should I just support kilograms / meters in the database and do the conversion while showing this in the user interface

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• is it possible to evaluate JavaScript code using XMLHttpRequest

  - by user1064717

  I'm trying to use this ajax request to call a file with some php which is working ok and some JavaScript which is not. any ideas? function showpart2(){ if(window.XMLHttpRequest){ xmlhttp = new XMLHttpRequest(); xmlhttp.open("GET","atuamae.org/parte2-encomendar.php",false); xmlhttp.send(null); } document.getElementById('part2').innerHTML = xmlhttp.responseText; eval(xmlhttp.responseText.getElementById('part2').innerHTML) setTimeout('showpart2()',15000); } showpart2(); </script>

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• Keeping track of dirty blocks on a block device

  - by mikeY

  I'm looking for a way to keep track of what blocks on a block device are modified after a point in time. How I eventually want to use this for is to keep two 2TB disks in sync, one which only comes online (connected through USB) once a month. Without knowing what blocks have been modified, I have to go through the whole 2TB every time. I'm using a recent GNU/Linux OS and have C and Python experience. I'm hoping to avoid writing kernel level code as I don't have any experience in that area whatsoever. My current theory is that there should be some hooks somewhere where my code can get called when a disk flush is performed. Any ideas?

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• mod_perl and libs

  - by paulj3000

  Hi, I just installed my system with Oracle 64bit Linux5.4 running Apache Server version: Apache/2.2.3 and mod_perl 2. Now, I have my perl libraries set in a specific path: /my/perl/libs and I have adjusted my httpd.conf to compensate for this (I added the below): SetEnv MY_LIBS /my/perl/libs and in my cgi I'm setting my environment to compensate: use lib($ENV{'MY_LIBS'}); Now the problem: Sometimes my perl modules will recognize the path of /my/perl/libs and call all the functions appropriately, and sometimes they won't, thus thowing a 500 error. Some observations: when I restart apache (/etc/init.d/httpd restart), things work fine but then the 500 error comes up. Are there any ideas? What should I be looking at? Thanks

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• Dynamic Custom Fields for Data Model

  - by Jerry Deng

  I am in the process of creating a dynamic database where user will be able to create resource type where he/she can add custom fields (multiple texts, strings, and files) Each resource type will have the ability to display, import, export its data; I've been thinking about it and here are my approaches. I would love to hear what do you guys think. Ideas: just hashing all the custom data in a data field (pro: writing is easier, con: reading back out may be harder); children fields (the model will have multiple fields of strings, fields of text, and fields for file path); fixed number of custom fields in the same table with a key mapping data hash stored in the same row; Non-SQL approach, but then the problem would be generating/changing models on the fly to work with different custom fields;

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• iOS get user contacts excluding businesses

  - by Kyle Begeman

  I have an app that is loading all of a users contacts. I would like to exclude any business, but I can't seem to find a way to determine if a contact is a business. I initially considered check if the "company" field contains a value when the first and last name do not, but I can't find this property from the ABRecord. Here is how I am grabbing the first and last name: NSString *firstName = (__bridge_transfer NSString *)ABRecordCopyValue(contactPerson, kABPersonFirstNameProperty); NSString *lastName = (__bridge_transfer NSString *)ABRecordCopyValue(contactPerson, kABPersonLastNameProperty); Any ideas? Thanks!

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• Dom Element onclick (MooTools :: optionally)

  - by Theofanis Pantelides

  Consider the following example: function async_callback(array1, array2, array3) { // All arrays are equal length for(var i = 0; i < array1.length; i++) { var myElement = new Element('div', { 'id': 'dvMy' + i, 'events': { 'click': function() { SomeFunction(array1[i], array2[i], array3[i] } }}); $(document).appendChild(myElement); } } Now when I click my element, I get a null value for all three arguments. I even tried doing: myElement.onclick = SomeFunction; // but this won't allow arguments I know I can create a string and use eval() and that does work, but I don't like eval(). Any ideas??? btw: This is a simple example to replicate the problem, and not actual code.

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• Unable to publish files in SharePoint

  - by iHeartDucks

  When I publish a file from code byte[] fileBytes = objItem.File.OpenBinary(); string DestinationURL = string.Format(@"{0}/{1}", objDestinationFolder.Url, objItem.File.Name); //Copy the file. SPFile objDestinationFile = objDestinationFolder.Files.Add(DestinationURL, fileBytes, true); objDestinationFile.Update(); objDestinationFile.Publish(string.Format("File Copied from {0}", objItem.Url)); I get an error message which says You can only publish, unpublish documents in a minor version enabled list Ii checked the permissions of the list and it has "Create major and minor (draft) versions" checked. Any ideas?

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• Grails external Jms broker (active mq)

  - by TheBigS

  I have what will become an 'external' activemq server I'd like grails to be able to talk to. Right now I am just running it on my dev box. Here is what I have setup right now: 1) Run activemq server 2) Run activemq/examples using ant to produce messages 3) View ActiveMQ admin site: http://localhost:8161/admin/queues.jsp verify that messages are in the queue. 4) Follow Mini Tutorial to create the Service and Controller: http://www.grails.org/ActiveMQ+Plugin 5) Configured my Grails resources.groovy file as follows: beans = { jmsConnectionFactory(SingleConnectionFactory){ targetConnectionFactory = { ActiveMQConnectionFactory cf -> brokerURL = 'tcp://localhost:61616' } } } When I run the grails app I get a BindException saying port 61616 is already in use. How do I configure this to use my server that is already running? I've tried changing 'localhost' to '127.0.0.1' and to my LAN ip, but no luck, it keeps trying to setup its own embedded activemq server. Any ideas?

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• Event is causing an error, but I can't catch the exception

  - by proudgeekdad

  A developer has created a custom control in ASP.NET using VB.NET. The custom control uses a repeater. In certain scenarios, the rpt_ItemDataBound event is encountering a data error. My goal is rather than having the user see the yellow screen of death, give the user a friendlier error explaining exactly what the data error is. I figured I would be able to use a Try/Catch block as shown below throw the exception, however, it appears that the event has nowhere to be thrown to and stops executing at the "End Try" line. Protected Sub rpt_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs) Handles rpt1.ItemDataBound, rpt2.ItemDataBound Try ProcessBadData... Catch ex As Exception Throw ex End Try End Sub In VB.NET, I can find where the repeater's DataSource is being set, however, I can not find a DataBind event. Any ideas how I can capture the exception in this ASCX control so I can report it to the user?

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• Zend autloading different namespaces from the same directory?

  - by Sled

  Hey guys, I have a models directory in my project, and I would like to save/files classes there with different namespaces. Example: models/User.php with classname Model_User models/Table_User.php with classname Model_Table_User For the first namespace I have this in bootstrap.php $resourceLoader->addResourceTypes(array( 'model' => array( 'namespace' => 'Model', 'path' => 'models' ) )); I can't figure out how to add the second namespace so it detects files starting with Table_ Any ideas? For now I've added a second directory named 'tables' but it's getting confusing because I have each model name twice (once in the models diretory and once in the tables directory)

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• A gridview for debugging collections?

  - by Llewellyn

  Hi Guys, I'm working with fairly large generic collections and I need a quick way to view all the items and their properties in these collections while debugging. When I say view all the items, I mean I would like to view the collection as if it was bound to say.. a gridview. That was I could see all all the item properties listed. Currently VS2010 displays the collection object during debugging, but it takes several clicks before I can view any item's properties within the collection. As I'm using collection with 50 to 100 items in them, I've having a hard time getting a feel for the collection data because of having to click through to view each individual item's properties during debugging. Do you have any ideas or know of a visual studio plugin that can help display collections in a table format or gridview format? Thanks for you time

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• Can JAXB store the class name in the XML so that the the deserialize code doesn't need knowledge of the class?

  - by Andrew

  It seems the standard approach for deserializing JAXB XML is to specify the package name when creating the context. Then, JAXB looks up the class based on the root element: JAXBContext jc = JAXBContext.newInstance("com.foo"); Unmarshaller u = jc.createUnmarshaller(); Object o = u.unmarshal(new StringReader("...")); I'm looking for a more flexible approach where I don't have to specify the package name and could still deserialize any object. This would be as simple as JAXB storing the package in the XML, but I can't seem to find out how to do this. I can write the code to do it myself but that would be unpleasant. It would like JAXB to do it, if possible. BTW, I am not using schemas, just Annotations and marshal/unmarshal. Any ideas?

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• C# - Keep track of open child forms

  - by Nate Shoffner

  I currently have a parent control (Form1) and a child control (Form2). Form1 contains a listview that stores a list of of file data (each file is a separate item). Form2 contains only a textbox. Upon clicking on one of these listviewitems in Form1, Form2 is opened up and accesses the file's data and loads it into the textbox in Form2 in plain text format. The issue I'm having is, I would like to be able to detect, upon clicking of a listviewitem, whether that file is already opened in said child form and if so, to activate it (bring it to the front) and if it is not already opened, open it. I'm not sure what the best method of doing this would be since this can involve many child forms being open at once. This is not an MDI application. Any ideas on how this could be accomplished are appreciated and samples even more so. Thank you.

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• How can keep track of the index path of a button in a tableview cell?

  - by Jake

  I have a table view where each cell has a button accessory view. The table is managed by a fatchedresults controller and is frequently reordered. I want to be able to press a button and be able to obtain the index path of the pressed button's tableviewcell. I've been trying to get this working for days by storing the row of the button in it's tag, but when the table get's reordered the row becomes incorrect and I keep failing at reordering the tags correctly when a change is made. Any new ideas on how to keep track of the button's cell's index path? Thanks so much for any help.

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