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  • Naming a typedef for a boost::shared_ptr<const Foo>

    - by Blair Zajac
    Silly question, but say you have class Foo: class Foo { public: typedef boost::shared_ptr<Foo> RcPtr; void non_const_method() {} void const_method() const {} }; Having a const Foo::RcPtr doesn't prevent non-const methods from being invoked on the class, the following will compile: #include <boost/shared_ptr.hpp> int main() { const Foo::RcPtr const_foo_ptr(new Foo); const_foo_ptr->non_const_method(); const_foo_ptr->const_method(); return 0; } But naming a typedef ConstRcPtr implies, to me, that the typedef would be typedef const boost::shared_ptr<Foo> ConstRcPtr; which is not what I'm interested in. An odder name, but maybe more accurate, is RcPtrConst: typedef boost::shared_ptr<const Foo> RcPtrConst; However, Googling for RcPtrConst gets zero hits, so people don't use this as a typedef name :) Does anyone have any other suggestions?

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  • Communication between Page and User Controls

    - by Narmatha Balasundaram
    I have a main page that has multiple user controls on it. All the user controls have static text and some data to be retrieved from the DB. The aysnchronous DB call is clubbed at the page level and one call is made to avoid multiple calls (in the different user controls) to get the same data. I want the page and user controls to load initially with the static text and later refresh the contents obtained from the server. To sum it all up, Page Loads = Asyn calls fired on page load = Data received back from the server (XML/text/whatever) = User controls to load with this data using AJAX. What methods do I have to let the user controls know that I have the data from the server and they need to update with this data?

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  • How to get window opened/closed/minimized messages from a native app?

    - by Josh Santangelo
    It's tough to write a good title for this one. I'm working on a WPF application which needs to know about the existence of all other open windows on the system. I'm able to do this by calling the native EnumWindows method just fine, and I can call other native methods to filter out just the windows I'm interested in. This works well. The problem I'm having is that I want to know when a window is opened or closed (and, ideally, minimized). I can do this by polling with EnumWindows, but I'm finding that to be pretty slow, even if I push it off to another thread. Is there a better way to get notifications of window opened/closed/minimized? Keep in mind that my knowledge of non-managed code is pretty limited.

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  • Monkeypatch a model in a rake task to use a method provided by a plugin?

    - by gduquesnay.mp
    During some recent refactoring we changed how our user avatars are stored not realizing that once deployed it would affect all the existing users. So now I'm trying to write a rake task to fix this by doing something like this. namespace :fix do desc "Create associated ImageAttachment using data in the Users photo fields" task :user_avatars => :environment do class User # Paperclip has_attached_file :photo ... <paperclip stuff, styles etc> end User.all.each do |user| i = ImageAttachment.new i.photo_url = user.photo.url user.image_attachments << i end end end When I try running that though I'm getting undefined method `has_attached_file' for User:Class I'm able to do this in script/console but it seems like it can't find the paperclip plugin's methods from a rake task.

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  • How to indefinitely pause a thread in Java and later resume it?

    - by Carlos Torres
    Maybe this question has been asked many times before, but I never found a satisfying answer. The problem: I have to simulate a process scheduler, using the round robin strategy. I'm using threads to simulate processes and multiprogramming; everything works fine with the JVM managing the threads. But the thing is that now I want to have control of all the threads so that I can run each thread alone by a certain quantum (or time), just like real OS processes schedulers. What I'm thinking to do: I want have a list of all threads, as I iterate the list I want to execute each thread for their corresponding quantum, but as soon the time's up I want to pause that thread indefinitely until all threads in the list are executed and then when I reach the same thread again resume it and so on. The question: So is their a way, without using deprecated methods stop(), suspend(), or resume(), to have this control over threads?

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  • Type-safe, generic, empty Collections with static generics

    - by Droo
    I return empty collections vs. null whenever possible. I switch between two methods for doing so using java.util.Collections: return Collections.EMPTY_LIST; return Collections.emptyList(); where emptyList() is supposed to be type-safe. But I recently discovered: return Collections.<ComplexObject> emptyList(); return Collections.<ComplexObject> singletonList(new ComplexObject()); etc. I see this method in Eclipse Package Explorer: <clinit> () : void but I don't see how this is done in the source code (1.5). How is this magic tomfoolerie happening!!

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  • Showing a Toast using "setUncaughtExceptionHandler"

    - by VitalyB
    Hi everyone, I'm trying to do a simple global exception handler in my Android app and I am having troubles: public class TicTacToe extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Thread.currentThread().setUncaughtExceptionHandler(new UncaughtExceptionHandler() { @Override public void uncaughtException(Thread thread, Throwable ex) { Toast.makeText(this, "TOAST", Toast.LENGTH_LONG); } }); setContentView(R.layout.main); } } I'm a rather new with both Android AND java but in .NET that would work. Can't I access local variable from anonymous methods in java? If so, how should I rewrite it? Thanks, Vitaly

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  • Dynamically loading hi-res images into UIScrollView

    - by Jeff
    I've been looking into creating a gallery mode in my application. The functionality will be identical to the built in Photos App. Here's the flow: 1. You touch on a thumbnail and ... 2. a modal view displays a large detail version of the image 3. You have the ability to scroll horizontally through all the images in the gallery while in this modal view I'm stuck on step 3. How do I dynamically load hi res images into a scroll view? I understand I need to set the contentSize for the the scrollView but how do I do that when I've only selected and loaded one image? What delegate methods do I need to implement and what does the heavy lifting look like? Thanks in advance!

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  • How to fit page to Silverlight WebBrowser control?

    - by Igor V Savchenko
    Hello. I use WebBrowser Silverlight 4 control to load some page: <WebBrowser Height="350" Name="webBrowser" Width="400" /> ... webBrowser.Navigate(new Uri("http://mail.live.com")); But page loads with horizontal and vertical scroll bars. So I'm trying to find some ways to get actual size of loaded page (then I can change Height/Width of control) OR change scale of loaded page (to fit it to the actual WebControl control). Is it possible to do with standard WebControl methods?

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  • Is an IQueryable a query or just an object which can be queried?

    - by Albic
    I'm kinda confused what the IQueryable interface actually represents. The MSDN documentation for IQueryable says: "Provides functionality to evaluate queries against a specific data source." The documentation for IQueryProvider says: "Defines methods to create and execute queries that are described by an IQueryable object." The name and the documentation summary suggest that it is an object/data store which can be queried. The second quote and the fact the ObjectQuery class from the Entity Framework implements IQueryable suggest it is a query which can be executed. Did I misunderstood something or is it really kinda fuzzy?

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  • Office Automation Libraries

    - by Ian
    Some time ago I posted about a question about reading Excel files as a server process, to get around the tighter restrictions Microsoft have been applying on Office Automation. I now need to extend this, by finding methods/libraries to read other sorts of Office files in an automated way on a server. The applications I'm interested in are Word, Powerpoint, Project and to a lesser extent Word and Visio. I need to be able to support 97-2003 office files, and the newer open xml formats (e.g. xlsx, docx) at a very least. With regards to Word integration, I also need to be able to handle writing/reading RTF text. If anyone has any suggestions I'd be pleased to hear them. Thanks

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  • Choosing routing.yml based on user culture?

    - by Erland Wiencke
    In my Symfony application I would like to choose the routing.yml based on the current user's culture; 'en' => routing.en.yml 'no' => routing.no.yml and so forth. Any suggestion to how this can be done? Edit: I am not trying to do i18n this way - I use Symfony's built-in methods for that. I simply want "static" urls to reflect the user's language: /en/projects/internal/project-name /no/prosjekter/interne/prosjektnavn /fr/baguette/champs-elysee/foux-de-fafa Where "projects" is a module, the category "internal" and "project-name" are stored in the database.

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  • cant populate cells with an array when i have loaded a second UITableViewController

    - by richard Stephenson
    hi there, im very new to iphone programming, im creating my first app, (a world cup one) the first view is a table view. the cell text label is filled with an array, so it shows all the groups (group a, B, c,ect) then when you select a group, it pulls on another UITableViewcontroller, but whatever i do i cant set the text label of the cells (e.g france,mexico,south africa, etc. infact nothin i do to the cellForRowAtIndexPath makes a difference , could someone tell me what im doing wrong please Thanks `here is my code for the view controller #import "GroupADetailViewController.h" @implementation GroupADetailViewController @synthesize groupLabel = _groupLabel; @synthesize groupADetail = _groupADetail; @synthesize teamsInGroupA; #pragma mark Memory management - (void)dealloc { [_groupADetail release]; [_groupLabel release]; [super dealloc]; } #pragma mark View lifecycle - (void)viewDidLoad { [super viewDidLoad]; // Set the number label to show the number data teamsInGroupA = [[NSArray alloc]initWithObjects:@"France",@"Mexico",@"Uruguay",@"South Africa",nil]; NSLog(@"loaded"); // Set the title to also show the number data [[self navigationItem]setTitle:@"Group A"]; //[[self navigationItem]cell.textLabel.text:@"test"]; //[[self navigationItem] setTitle[NSString String } - (void)viewDidUnload { [self setgroupLabel:nil]; } #pragma mark Table view methods - (NSInteger)numberOfSectionsInTableView:(UITableView*)tableView { // Return the number of sections in the table view return 1; } - (NSInteger)tableView:(UITableView*)tableView numberOfRowsInSection:(NSInteger)section { // Return the number of rows in a specific section // Since we only have one section, just return the number of rows in the table return 4; NSLog:("count is %d",[teamsInGroupA count]); } - (UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath { static NSString *cellIdentifier2 = @"Cell2"; // Reuse an existing cell if one is available for reuse UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier2]; // If no cell was available, create a new one if (cell == nil) { NSLog(@"no cell, creating"); cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier2] autorelease]; [cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator]; } NSLog(@"cell already there"); // Configure the cell to show the data for this row //[[cell textLabel]setText:[NSString string //[[cell textLabel]setText:[teamsInGroupA objectAtIndex:indexPath.row]]; //NSUInteger row = [indexPath row]; //[cell setText:[[teamsInGroupA objectAtIndex:indexPath:row]retain]]; //cell.textLabel.text:@"Test" [[cell textLabel]setText:[teamsInGroupA objectAtIndex:indexPath.row]]; return cell; } @end #import "GroupADetailViewController.h" @implementation GroupADetailViewController @synthesize groupLabel = _groupLabel; @synthesize groupADetail = _groupADetail; @synthesize teamsInGroupA; #pragma mark Memory management - (void)dealloc { [_groupADetail release]; [_groupLabel release]; [super dealloc]; } #pragma mark View lifecycle - (void)viewDidLoad { [super viewDidLoad]; // Set the number label to show the number data teamsInGroupA = [[NSArray alloc]initWithObjects:@"France",@"Mexico",@"Uruguay",@"South Africa",nil]; NSLog(@"loaded"); // Set the title to also show the number data [[self navigationItem]setTitle:@"Group A"]; //[[self navigationItem]cell.textLabel.text:@"test"]; //[[self navigationItem] setTitle[NSString String } - (void)viewDidUnload { [self setgroupLabel:nil]; } #pragma mark Table view methods - (NSInteger)numberOfSectionsInTableView:(UITableView*)tableView { // Return the number of sections in the table view return 1; } - (NSInteger)tableView:(UITableView*)tableView numberOfRowsInSection:(NSInteger)section { // Return the number of rows in a specific section // Since we only have one section, just return the number of rows in the table return 4; NSLog:("count is %d",[teamsInGroupA count]); } - (UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath { static NSString *cellIdentifier2 = @"Cell2"; // Reuse an existing cell if one is available for reuse UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier2]; // If no cell was available, create a new one if (cell == nil) { NSLog(@"no cell, creating"); cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier2] autorelease]; [cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator]; } NSLog(@"cell already there"); // Configure the cell to show the data for this row //[[cell textLabel]setText:[NSString string //[[cell textLabel]setText:[teamsInGroupA objectAtIndex:indexPath.row]]; //NSUInteger row = [indexPath row]; //[cell setText:[[teamsInGroupA objectAtIndex:indexPath:row]retain]]; //cell.textLabel.text:@"Test" [[cell textLabel]setText:[teamsInGroupA objectAtIndex:indexPath.row]]; return cell; } @end

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  • Authenticate sites with different domain names using the Facebook API

    - by Onema
    We have a CMS that supports multiple sites, one of our features allows our users (The site admin) to connect to the site facebook account to allow status updates, create events and upload pictures to FB from with in the CMS. The authentication needs to occur once since each site may have multiple site admins that do not have access to the site FB user name and password. We use iframe and authenticate using $facebook-require_login() which redirects the user to the FB login and authentication pages. All this works just fine but when the user hits "Allow" the authentication will break as it will only redirect to whatever is in the "Post-Authorize Redirect URL" field making the app obsolete for any other domain except the one in the "Post-Authorize Redirect URL" I know other API's authentication methods like in Vimeo and YouTube will allow you to specify a NEXT parameter which is the equivalent of the "Post-Authorize Redirect URL" and it can be set at run time. How can I make this work for multiple domain names? Any hints on this issue will be of great help

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  • TableAdapter to return ONLY selected columns? (VS2008)

    - by MattSlay
    (VS2008) I'm trying to configure a TableAdapter in a Typed DataSet to return only a certain subset of columns from the main schema of the table on which it is based, but it always returns the entire schema (all columns) with blank values in the columns I have omitted. The TableAdpater has the default Fill and GetData() methods that come from the wizard, which contain every column in the table, which is fine. I then added a new parameterized query method called GetActiveJobsByCustNo(CustNo), and I only included a few columns in the SQL query that I actually want to be in this table view. But, again, it returns all the columns in the master table schema, with empty values for the columns I omitted. The reason I am wanting this, is so I can just get a few columns back to use that table view with AutoGenerateColumns in an ASP.NET GridView. With it giving me back EVERY column i nthe schema, my presentation GridView contains way more columns that I want to show th user. And, I want to avoid have to declare the columns in the GridView.

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  • WPF/MVVM - should we create a different Class for each ViewModel ?

    - by FMFF
    I'm attempting the example from the excellent "How Do I" video for MVVM by Todd Miranda found in MSDN. I'm trying to adapt the example for my learning purpose. In the example, he has a ViewModel called EmployeeListViewModel. Now if I want to include Departments, should I create another ViewModel such as DepartmentListViewModel? The example has EmployeeRepository as the Data Source. In my case, I'm trying to use an Entity object as the datasource (Employees.edmx in Model folder and EmployeeRepository.cs in DataAccess folder). If I want to display the list of Departments, should I create a separate class called DepartmentRepository and put all department related method definitions there? What if I want to retrieve the employee name and their department's name together? Where should I place the methods for this? I'm very new to WPF and MVVM and please let me know if any of the above needs to be re-phrased. Thank you for all the help.

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  • Cocoa Touch - Display an Activity Indicator while loading a UITabBar View

    - by Aurum Aquila
    I have a UITabBar Application with two views that load large amounts of data from the web in their "viewWillAppear" methods. I want to show a progress bar or an activity indicator while this data is being retrieved, to make sure the user knows the app isn't frozen. I am aware that this has been asked before. I simply need some clarification on what seems to be a rather good solution. I have implimented the code in the example. The question's original asker later solved their problem, by putting the retrieval of data into another "thread". I understand the concept of threads, but I do not know how I would impliment this. With research, I have found that I need to move all of my heavy data retrieval into a background thread, as all of the UI updating occurs in the main thread. If one would be so kind as to provide an example for me, I would be very appreciative. I can provide parts of my existing code as necessary.

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  • Define Instance Variable Outside of Method Defenition (ruby)

    - by Ell
    Hi all, I am developing (well, trying to at least) a Game framework for the Ruby Gosu library. I have made a basic event system wherebye each Blocks::Event has a list of handlers and when the event is fired the methods are called. At the moment the way to implement an event is as follows: class TestClass attr_accessor :on_close def initialize @on_close = Blocks::Event.new end def close @on_close.fire(self, Blocks::OnCloseArgs.new) end end But this method of implementing events seems rather long, my question is, how can I make a way so that when one wants an event in a class, they can just do this class TestClass event :on_close def close @on_close.fire(self, Blocks::OnCloseArgs.new) end end Thanks in advance, ell.

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  • MooTools Classes and JsDoc

    - by Joel Alejandro
    I have the following Moo class: Nem.Ui.Window = new Class({ Implements: [Options, Events], options: { caption: "Ventana", icon: $empty, centered: true, id: $empty, width: $empty, height: $empty, modal: false, desktop: $empty, x: $empty, y: $empty, layout: $empty }, initialize: function(options) { this.setOptions(options); /* ... */ }, setHtmlContents: function(content) { /* ... */ }, setText: function(text) { /* ... */ }, close: function(win) { /* ... */ }, /* ... */ }); I want to document it with JsDoc. I read you can use @lends [class].prototype inside new Class and mark initialize with the @constructs tag. How can I mark methods and events such? I.E.: setHtmlContents should be a method, close should be an event. Also, can the elements under options be documented, somehow?

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  • Discussion: Working TDD in a Scrum context

    - by Anders Juul
    Hi all, When I work TDD I tend to start out with the big picture and create the tests that should succeed in order for the overall assignment to be completed - it then kicks off a number of supporting classes/methods/tests as I 'dig in'. If my assignment has been planned out in detail, I would then open one task, and in order to solve it, open another and then another. Only when the overall tests are succeeding can I close the original task, which means that at any given time, I would have a number of open tasks. I find that this approach conflict somewhat with the scrum approach where, ideally, I should be able to take and close a task within a day's work - and never have more than one task open at a time. I'm looking for input about how you manage this in your project - references to articles are also very welcome, I'm sure this has been debated thoroughly somewhere... The 'answer tick' will be awarded to best comment/reference. Thanks for any input, Anders, Denmark

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  • How to automate configurating DotNetNuke settings for several environments?

    - by Joosh21
    Are there any recommended methods for automating configuring DotnetNuke settings? We will have several instances of our DNN application (prod, beta, qa, dev, local, etc) and need to be able to configure them all the same and be able to make updates to them all with our future releases. The settings currently needed to be configured include Host Settings, Portal Settings and User Profile Definitions. Here are some approaches I have come up with so far: 1) Create a Configuration module and use SQL scripts for all the settings? Is it generally safe to manipulate the DNN tables directly? Often it is recommended to use APIs with many frameworks. 2) Create a Configuration module and implement IUpgradeable.UpgradeModule and programatically set the settings? 3) Create a PortalTemplate from a portal with the settings all set. I believe this will only work for creating new portals. I will not be able to update existing portals.

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  • MSSQL Search Proper Names Full Text Index vs LIKE + SOUNDEX

    - by Matthew Talbert
    I have a database of names of people that has (currently) 35 million rows. I need to know what is the best method for quickly searching these names. The current system (not designed by me), simply has the first and last name columns indexed and uses "LIKE" queries with the additional option of using SOUNDEX (though I'm not sure this is actually used much). Performance has always been a problem with this system, and so currently the searches are limited to 200 results (which still takes too long to run). So, I have a few questions: Does full text index work well for proper names? If so, what is the best way to query proper names? (CONTAINS, FREETEXT, etc) Is there some other system (like Lucene.net) that would be better? Just for reference, I'm using Fluent NHibernate for data access, so methods that work will with that will be preferred. I'm using MS SQL 2008 currently.

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  • How to implement ASP.NET membership provider in my domain model

    - by Kjensen
    In a website, I need to integrate membership and authentication. So I want to use the functionality of ASP.NET Membership, but I have other custom stuff, that a "user" has to do. So I am sitting here with my pencil and paper, drawing lines for my domain model... And how can I best utilize the ASP.Net membership, but extend it to fill my needs? Should I create a class that inherits from a MembershipUser and extend it with my own properties and methods (and save this in a seperate table). Or should I let the MembershipUser be a property on my custom User/Client object? What would be a good solid way to do this?

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  • Algorithms to trim leading zeroes from a SQL field?

    - by froadie
    I just came across the interesting problem of trying to trim the leading zeroes from a non-numeric field in SQL. (Since it can contain characters, it can't just be converted to a number and then back.) This is what we ended up using: SELECT REPLACE(LTRIM(REPLACE(fieldWithLeadingZeroes,'0',' ')),' ','0') It replaces the zeroes with spaces, left trims it, and then puts the zeroes back in. I thought this was a very clever and interesting way to do it, although not so readable if you've never come across it before. Are there any clearer ways to do this? Any more efficient ways to do this? Or any other ways to do this period? I was intrigued by this problem and would be interested to see any methods of getting around it.

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  • Mapping class properties to generic columns in table .NET

    - by Tony_Henrich
    I have have a SQL Server table which has generic names like Text1, Text2.. etc. The table was designed like this because the same structure is used for different projects. I have a class in .NET which has properties. Say a Customer class has a property called FirstName. How can I do the mapping from FirstName to Text1 just once (central place) in the application so that I don't have to remember and hard code the mappings all over the app when I create the different DAL methods? For example, I want the app to know when I want to update, insert a FirstName, the DAL automatically uses Text1. Basically I don't have to remember which property goes to which column. The idea is so the developers do not map the properlies/columns in a wrong way. It's always consistent. Note: Database inserts, updates and deletes are allowed through stored procedures only.

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