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  • Cannot access implict object from within method in custom JSP tag file

    - by David Hamilton
    I'm attempting to create a custom jsp tag. Everything is working fine, except for the fact that I the request seems to be out-of-scope for my custom function. Here is the relevant bit from the .tag file: <%! private String process(String age, BigDecimal amount) { //Attempting to access request here results in an compile time error trying to: String url=request.getURL; } %> I'm very new to JSP so I'm sure I'm missing something obvious..but I can't seem to figure out what. Any help is appreciated.

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  • Returning a ReadOnlyCollection from a method with an IList return type

    - by devoured elysium
    Here I have the following bit of code: private IList<IState> _states = new List<IState>(); private ReadOnlyCollection<IState> _statesViewer; public IList<IState> States { get { return _statesViewer; } } Generally it is preferable to return interfaces than the concrete classes themselves, but in this case, shouldn't I set as the return type of the States property a ReadOnlyCollection? Any user of my library will think it is possible to anything you can do with an IList if I set it as so, and that means adding elements. That is not true and I'm definitely breaking the contract exposing it as an IList. Am I right with this view or there is something else I am missing here?

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  • Generic extension method returning IEnumerable<T> without using reflection

    - by roosteronacid
    Consider this snippet of code: public static class MatchCollectionExtensions { public static IEnumerable<T> AsEnumerable<T>(this MatchCollection mc) { return new T[mc.Count]; } } And this class: public class Ingredient { public String Name { get; set; } } Is there any way to magically transform a MatchCollection object to a collection of Ingredient? The use-case would look something like this: var matches = new Regex("([a-z])+,?").Matches("tomato,potato,carrot"); var ingredients = matches.AsEnumerable<Ingredient>();

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  • most efficient method of turning multiple 1D arrays into columns of a 2D array

    - by Ty W
    As I was writing a for loop earlier today, I thought that there must be a neater way of doing this... so I figured I'd ask. I looked briefly for a duplicate question but didn't see anything obvious. The Problem: Given N arrays of length M, turn them into a M-row by N-column 2D array Example: $id = [1,5,2,8,6] $name = [a,b,c,d,e] $result = [[1,a], [5,b], [2,c], [8,d], [6,e]] My Solution: Pretty straight forward and probably not optimal, but it does work: <?php // $row is returned from a DB query // $row['<var>'] is a comma separated string of values $categories = array(); $ids = explode(",", $row['ids']); $names = explode(",", $row['names']); $titles = explode(",", $row['titles']); for($i = 0; $i < count($ids); $i++) { $categories[] = array("id" => $ids[$i], "name" => $names[$i], "title" => $titles[$i]); } ?> note: I didn't put the name = value bit in the spec, but it'd be awesome if there was some way to keep that as well.

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  • XmlSerializer.Deserialize method appends timezone to a time and datetime field

    - by G33kKahuna
    Have a small script in Microsoft.NET 2.0 that deserializes a XML back to a typed object, connects dyanimcally to a web service using ServiceDescription and binds the deserialized typed object to the WebMethod inbound. The XML prior to serialization looks like below <completion_time>12:19:38</completion_time> on the wire when communicating to the web service looks like below <completion_time>12:19:38.0000000-04:00</completion_time> with the timezone appended to the end. This is causing the time to be read differently when communicating to a web service at a different timezone. is there anyway to let XmlSerializer skip the timezone? Or any other known workarounds?

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  • Rails controller method going to plural form

    - by Jty.tan
    I'm new to rails! Ok, I am trying to set up a user signup form. It is mapped as a singular resource in the routes map.resource :user And trying to create the user through the console works fine. the controller code for user's signup is as follows: def signup @user = User.new#(params[:user]) end def create @user = User.new(params[:user]) #debugger if request.post? if @user.save session[:user] = User.authenticate(@user.login, @user.password) flash[:message] = "Signup successful" redirect_to registries_path else flash[:warning] = "Signup unsuccessful" #redirect_to 'user/signup' end end end The signup view is as follows (and this is where i think something is going wrong) <% form_tag user_path do %> <p>User creation.</p> <p><%= error_messages_for 'user' %></p> <p> <label>Username:</label> <%= text_field_tag 'login', nil, :size => 20, :maxlength => 20 %> </p> <p> <label>Password:</label> <%= password_field_tag 'password', nil, :size => 20, :maxlength => 20 %> </p> <p> <label>Password confirmation:</label> <%= password_field_tag 'password_confirmation', nil, :size => 20, :maxlength => 20 %> </p> <p> <label>Email:</label> <%= text_field_tag 'email' %> </p> <p><%= submit_tag 'Signup' %></p> <% end %> Now, that page renders just fine. I've called the form on the "user_path" which is singular (i think?). But when I hit the submit button, it gives me an error saying that uninitialized constant UsersController the occurence of the error makes sense, since User is meant to be singular, so if it is trying to call the Users controller, it should be chucking an error. When I checked the server log, it shows this message: Processing ApplicationController#create (for 127.0.0.1 at 2010-05-08 16:26:14) [POST] Parameters: {"commit"=>"Signup", "password_confirmation"=>"[FILTERED]", "action"=>"create", "authenticity_token"=>"yOcHY+rMjaqmu9HS8EwnDqJKbc0Zxictc0y4dtD26ac=", "controller"=>"users", "login"=>"bob", "password"=>"[FILTERED]", "email"=>"[email protected]"} NameError (uninitialized constant UsersController): In the params, I can see that it is calling the "users" controller. But I'm not sure how to fix that, or what is causing it to call the "users" controller as opposed to the "user" controller. Any ideas? Thanks in advance!

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  • amount of data returned by wcf 3.0 service contract method causes error

    - by ferrell carr
    CommuncationException was unhandled The maximum message size quota for incoming messages (65536) has been exceeded. To increase the quota, use the MaxReceivedMessageSize property on the appropriate binding element. here is my svc.map file <?xml version="1.0" encoding="utf-8"?> <ServiceReference> <ProxyGenerationParameters ServiceReferenceUri="http://d3w9501/SimpleWCF/SimpleWCF.svc" Name="svc" NotifyPropertyChange="False" UseObservableCollection="False"> </ProxyGenerationParameters> <EndPoints> <EndPoint Address="http://d3w9501.americas.hpqcorp.net/SimpleWCF/SimpleWCF.svc" BindingConfiguration="BasicHttpBinding_ISimpleWCF" Contract="TestSimpleWCF.svc.ISimpleWCF" > </EndPoint> <bindings> <basicHttpBinding> <binding name="BasicHttpBinding_ISimpleWCF" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" > <security mode="None" /> </binding> </basicHttpBinding> </bindings> </EndPoints> </ServiceReference>

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  • Permission error while trying to access Sql from a web method

    - by Pavan Reddy
    I created a web service which has a few web methods which inturn performs inserts/updates/select from a Sql Server and return non-primitive types. To test the web methods I tried using the Open source tool .net web service studio When I test for the web methods, I get the following error - Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. I searched for solutions and I tried a lot of approaches like setting up the permission levels, the trust level in config file etc. But the error still persists. Can anyone tell me what could be the reason for this error? I have tried toggling the permissions at all levels - Sql Server, web service etc. How can I fix this error?

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  • Wnat is the preferred method of building extremely lightweight business object / DAL now that I have

    - by Seth Spearman
    Hello, I have completed a simple database for a project. Only 6tables. Of the 6, one is a "lookup" table. There is one "master" table that is the driver for the system. It is referenced as a foreign key by the other four tables. Give that this step is completed. What is the FASTEST, EASIEST way to create POCOs/BizObjects that can load load the data and the child data. Here are my CAVEATS. *I don't want to spend more than 30-60 minutes learning how? *There is very little biz logic needed in the POCOs. They will pretty much load data. Don't even really need to write back data. *I already know CSLA (up to version 3) but I feel that is overkill for this little project. *Nevertheless, I would love it if it ROOT objects could have collection classes that contain the CHILD objects as in CSLA...but again, without using CSLA. *Please give the answer for .NET 35 but also if I was restricted to only use .NET 20. *Ideally I could just point a tool at the database and the POCOs would be genn'ed. *FREE Just curious what you guys use for this kind of scenario. I understand that this question is subjective but I want to hear a variety of answers. Seth

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  • Derived interface from generic method

    - by Sunit
    I'm trying to do this: public interface IVirtualInterface{ } public interface IFabricationInfo : IVirtualInterface { int Type { get; set; } int Requirement { get; set; } } public interface ICoatingInfo : IVirtualInterface { int Type { get; set; } int Requirement { get; set; } } public class FabInfo : IFabricationInfo { public int Requirement { get { return 1; } set { } } public int Type { get {return 1;} set{} } } public class CoatInfo : ICoatingInfo { public int Type { get { return 1; } set { } } public int Requirement { get { return 1; } set { } } } public class BusinessObj { public T VirtualInterface<T>() where T : IVirtualInterface { Type targetInterface = typeof(T); if (targetInterface.IsAssignableFrom(typeof(IFabricationInfo))) { var oFI = new FabInfo(); return (T)oFI; } if (targetInterface.IsAssignableFrom(typeof(ICoatingInfo))) { var oCI = new CoatInfo(); return (T)oCI; } return default(T); } } But getting a compiler error: Canot convert type 'GenericIntf.FabInfo' to T How do I fix this? thanks Sunit

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  • what is common GIS method?

    - by smile
    hello every one I want to know what is the main methods that used in GIS to connect between the location and their information (spatial access methodes) SAM. I read in some web sites two methods are: vector raster is that methods related what I want??? thank you ^_^

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  • Issue with Callback method and maintaining CultureInfo and ASP.Net HttpRuntime

    - by Little Larry Sellers
    Hi All, Here is my issue. I am working on an E-commerce solution that is deployed to multiple European countries. We persist all exceptions within the application to SQL Server and I have found that there are records in the DB that have a DateTime in the future! We define the culture in the web.config, for example pt-PT, and the format expected is DD-MM-YYYY. After debugging I found the issue with these 'future' records in the DB is because of Callback methods we use. For example, in our Caching architecture we use Callbacks, as such - CacheItemRemovedCallback ReloadCallBack = new CacheItemRemovedCallback(OnRefreshRequest); When I check the current threads CultureInfo, on these Callbacks it is en-US instead of pt-PT and also the HttpContext is null. If an exception occurs on the Callback our exception manager reports it as MM-DD-YYYY and thus it is persisted to SQL Server incorrectly. Unfortunately, in the exception manager code, we use DateTime.Now, which is fine if it is not a callback. I can't change this code to be culture specific due to it being shared across other verticals. So, why don't callbacks into ASP.Net maintain context? Is there any way to maintain it on this callback thread? What are the best practices here? Thanks.

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  • List in velocity macro, cannot find contains method

    - by fastcodejava
    I put a list strings as validTypes in velocity. When I do : #if (${validTypes}.contains("aaa")) // do something #end it throws an error. But when I do : #foreach (${validType} in ${validTypes}) ${validType} #end it works fine. Do I need to use velocity tools for this? How do I use it in an eclipse plugin? Are there any work around without using velocity tools?

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  • why drawRect method is not being called?

    - by user338322
    #import <UIKit/UIKit.h> @interface quartzViewController : UIViewController { IBOutlet UIView *myView; } @end #import "quartzViewController.h" @implementation quartzViewController -(void)drawRect:(CGRect)rect { CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSelectFont(context, "Arial", 24, kCGEncodingFontSpecific); CGContextSetTextPosition(context,80,80); CGContextShowText(context, "hello", 6); //not even this works CGContextShowTextAtPoint(context, 1,1, "hello", 6); } - (void)viewDidLoad { [myView setNeedsDisplay]; [super viewDidLoad]; } Will I have to make any changed in the nib? Thanks

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  • Loading dictionary for input method suggestion list

    - by jpspringall
    Hi, For various reasons, i'm trying to write my own input keyboard. So far all is going well except that of creating the suggestions. I've found the latinIME algorithm, which is all good. However i'm having major difficulty working out how to load the dictionary in the first place. I've had a good look round the net, and found various suggestions, but no definitive answers, and i cant seem to get any of them to work. If anyone has any suggestions on how best to do it, or even better some sample code, that would be brilliant. Many Thanks James

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  • NSArray containObjects method

    - by Anthony Chan
    Hi, I have a simple question regarding xcode coding but don't know why things are not performing as I think. I have an array of objects (custom objects). I just want to check if this one is within the array. I used the following code: NSArray *collection = [[NSArray alloc] initWithObjects:A, B, C, nil]; //custom "Item" objects Item *tempItem = [[Fruit alloc] initWithLength:1 width:2 height:3]; //3 instance variables in "Item" objects if([collection containsObject:tempItem]) { NSLog(@"collection contains this item"); } I suppose the above checking will give me a positive result but it's not. Further, I checked whether the objects created are the same. NSLog(@"L:%i W:%i H:%i", itemToCheck.length, itemToCheck.width, itemToCheck.height); for (int i = 0, i < [collection count], i++) { Item *itemInArray = [collection objectAtIndex:i]; NSLog(@"collection contains L:%i W:%i H:%i", itemInArray.length, itemInArray.width, itemInArrayheight); } In the console, this is what I got: L:1 W:2 H:3 collection contains L:0 W:0 H:0 collection contains L:1 W:2 H:3 collection contains L:6 W:8 H:2 Obviously the tempItem is inside the collection array but nothing shows up when I use containsObject: to check it. Could anyone give me some direction which part I am wrong? Thanks a lot!

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  • PHP equivalent to JavaScript's string split method

    - by m4k00
    I'm working with this on JavaScript: <script type="text/javascript"> var sURL = "http://itunes.apple.com/us/app/accenture-application-for/id415321306?uo=2&mt=8&uo=2"; splitURL = sURL.split('/'); var appID = splitURL[splitURL.length - 1].match(/[0-9]*[0-9]/)[0]; document.write('<br /><strong>Link Lookup:</strong> <a href="http://ax.itunes.apple.com/WebObjects/MZStoreServices.woa/wa/wsLookup?id=' + appID + '&country=es" >Lookup</a><br />'); </script> This script takes the numeric ID and gives me 415321306. So my question is how can I do the same thing but using PHP. Best regards.

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  • Dynamically Run IQueryable Method

    - by Micah
    Hi! I'm trying to run the Count() function of a Linq statement in an overriden Gridview function. Basically, I want to be able to assign a linq query to a gridview, and on the OnDataBound(e) event in my new extended gridview have it retrieve the count, using the IQueryable. This is where I'm at so far: protected override void OnDataBound(EventArgs e) { IEnumerable _data = null; if (this.DataSource is IQueryable) { _data = (IQueryable)this.DataSource; } System.Type dataSourceType = _data.GetType(); System.Type dataItemType = typeof(object); if (dataSourceType.HasElementType) { dataItemType = dataSourceType.GetElementType(); } else if (dataSourceType.IsGenericType) { dataItemType = dataSourceType.GetGenericArguments()[0]; } else if (_data is IEnumerable) { IEnumerator dataEnumerator = _data.GetEnumerator(); if (dataEnumerator.MoveNext() && dataEnumerator.Current != null) { dataItemType = dataEnumerator.Current.GetType(); } } Object o = Activator.CreateInstance(dataItemType); object[] objArray = new object[] { o }; RowCount = (int)dataSourceType.GetMethod("Count").Invoke(_data, objArray); Any ideas? I'm really new with working with IQueryables and Linq so I may be way off. How can I get my _data to allow me to run the Count function?

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