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  • Class decorator to declare static member (e.g., for log4net)?

    - by Ken
    I'm using log4net, and we have a lot of this in our code: public class Foo { private static readonly ILog log = LogManager.GetLogger(typeof(Foo)); .... } One downside is that it means we're pasting this 10-word section all over, and every now and then somebody forgets to change the class name. The log4net FAQ also mentions this alternative possibility, which is even more verbose: public class Foo { private static readonly ILog log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType); ... } Is it possible to write a decorator to define this? I'd really like to say simply: [LogMe] // or perhaps: [LogMe("log")] public class Foo { ... } I've done similar things in other languages, but never a statically-compiled language like C#. Can I define class members from a decorator?

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  • Is there an free (or cheap) issue tracking software that allow you hide some issues to some member g

    - by Andrea Francia
    I need a Issue Tracking System that allow me to share information on a selective manner. I would be able to define these groups: supplier (my company) subcontractors customer Then, I would be able to define three type of permissions for issues: Issue that can be viewed only by supplier Issue that can be viewed only by supplier and subcontractors Issue that can be viewed by all (supplier, subcontractors, customer) I tried redmine but I didn't find a way of hide some issues, they are always visible. There is an open issue and a patch for that but I not sure if it suit well for my situation. With this patch you need always to remember to make it private and there is only a level of permission: private or not. I need something more flexible. EDIT: I need a software that works on Fedora Linux.

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  • Call a non member funcion on an instance before is constructed.

    - by Tom
    Hi everyone. I'm writing a class, and this doubt came up. Is this undef. behaviour? On the other hand, I'm not sure its recommended, or if its a good practice. Is it one if I ensure no exceptions to be thrown in the init function? //c.h class C{ float vx,vy; friend void init(C& c); public: C(); ~C(); }; //c.cpp C::C() { init(*this); } void init(C& c) //throws() to ensure no exceptions ? { c.vx = 0; c.vy = 0; } Thanks in advance

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  • Call a non member function on an instance before is constructed.

    - by Tom
    Hi everyone. I'm writing a class, and this doubt came up. Is this undef. behaviour? On the other hand, I'm not sure its recommended, or if its a good practice. Is it one if I ensure no exceptions to be thrown in the init function? //c.h class C{ float vx,vy; friend void init(C& c); public: C(); }; //c.cpp C::C() { init(*this); } void init(C& c) //throws() to ensure no exceptions ? { c.vx = 0; c.vy = 0; } Thanks in advance

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  • (iphone) How to access CGRect member variable inside c++ class?

    - by Eugene
    i have a c++ class with CGrect variable and i'm getting segfault when trying to access it. class Parent { //with some virtual functions/dtors }; class Child { public: void SetRect(CGRect rect) { mRect = rect; } CGRect GetRect() { return mRect; } int GetIndex() { return mIndex; } private: CGRect mRect; int mIndex; }; i'm doing CGRect rect = childPtr->GetRect(); from object c code and it segfaults. I printed *childPtr just before the call and rect looks fine with intended data value. int index = childPtr->GetIndex(); from same object c code(*.mm), works fine though. Any idea why I'm getting segfaults? Thank you edit - It's got something to do with virtual functions. (gdb) p singlePuzzlePiece-GetRect() Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_PROTECTION_FAILURE at address: 0x00000001 0x00000001 in ?? () Cannot access memory at address 0x1 The program being debugged was signaled while in a function called from GDB. GDB remains in the frame where the signal was received. To change this behavior use "set unwindonsignal on" Evaluation of the expression containing the function (at 0x1) will be abandoned. (gdb) Somehow, the function is not properly compiled?

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  • Toggling doesn't work in IE 7

    - by praveen
    I have two divs i need to perform toggling between two divs while doing this some of the divs in my main div are displaying even if i use hide() function this happens only in ie7 function initMakeAPost() { $('questionheaderid').hide(); //hiding the questions section $('MP_questionofday_txtboxid').hide();//hiding the questions answer"textbox and button" section $('recaspotheaderid').hide();//hiding the search by txtspotname and city-spots //$('footer_userpost').hide();//hiding the footer $('makeapostid').show();//show the make a post content $('btnQAPost').hide(); $('footer_userpost').hide(); $('sreetCredContainer').hide(); $('postbtnid_dead').hide(); $('askNextQuestion').hide(); //$('UploadImgContainer').show();// for upload }

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  • How to use another classes member variables in c++?

    - by Stephen
    Hi there I'm currently programming a Yahtzee game, and I'm having trouble with some of my classes I have two classes, Player, and Scorecard. class Player { private: string name; Scorecard scorecard; }; class Scorecard { public: void display() { //... } }; (All the classes have the appropriate getters and setters) I'd like the scorecard class to be able to display the name of the player to the user. Is there any way that can be done?

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  • Call to a member function ... on a non-object

    - by jayceekay
    i have an object which is instantiated in an initialize file, which is called with every request. the name is right, so why is it telling me that oourls isn't an object and that redirectLoggedIn isn't its method? a var dump on oourls says NULL. but it's instantiated, and the backtrace at the bottom shows that it goes through initialization and instantiates it. pretty small snippet of code, here's the relevant bit: if($email) { global $session; $session->grantLogin($email); global $oourls; $oourls->redirectLoggedIn(); } else { return false; } and here's the output of debug_print_backtrace i threw in above the oourls method call because i'm completely confused: #0 accounts::verifyEmailRegisterAccount(37a6274c8f4bfa5c537b40e8e04d634a) called at [\public\includes\default\verifyemail.php:16] #1 require_once(\public\includes\default\verifyemail.php) called at [\support\php\ObjectOrientedURLs.class.php:48] #2 ObjectOrientedURLs->mhqqrVerifyemail(Array ([0] => 37a6274c8f4bfa5c537b40e8e04d634a)) #3 ReflectionMethod->invoke(ObjectOrientedURLs Object (), Array ([0] => 37a6274c8f4bfa5c537b40e8e04d634a)) called at [\support\php\ObjectOrientedURLs.class.php:280] #4 ObjectOrientedURLs->parseAndInvokeURL() called at [\support\php\ObjectOrientedURLs.class.php:255] #5 ObjectOrientedURLs->__construct() called at [\support\php\initialize.php:76] #6 require_once(\support\php\initialize.php) called at [\public\index.php:2]

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  • C# Why does calling an interface member from a class generate an error?

    - by Jack
    So I have an interface: interface IFoo { int Bar(); int this[int i] {get; set;} } And a class that derives from it class Foo : IFoo { public int IFoo.Bar() { //Implementation { public int IFoo.this[int i] { //Implementation } } Now, I try to do this: var fooey = new Foo(); int i = Fooey.Bar(); or this: int i = Fooey[4]; I would expect these to work properly. However, the compiler generates an error as if such members don't exist. Why is that? I am aware I can cast Foo as IFoo, but I am also aware that casting is costly to performance, which is often the reason to use interfaces in the first place. EDIT 1: These are the errors generated 'Foo' does not contain a definition for 'Bar' and no extension method 'Bar' accepting a first argument of type 'Foo' could be found (are you missing a using directive or an assembly reference?) "Cannot apply indexing to an expression of type 'Foo'"

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  • What is the purpose of @ as part of a member name in C#?

    - by thelaughingdm
    As you can imagine, Googling or Binging for any phrase containing an '@' is difficult. In creating a new web service, one of the members of the imported C# proxy class is prefixed with the @. For example: plan.@event = new Insurance.Event(); I assume that it is Visual Studio's way resolving potential conflicts with reserved words because 'event' is a reserved word. Changing the property in the web service interface to something other than 'event' (i.e. 'healthevent') removes the @ from the property. Is this a correct assumption?

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  • how to compile with llvm and g++?

    - by Sriram
    Hi, I use a fedora-11 system and recently I installed llvm ( sudo yum -y install llvm llvm-docs llvm-devel ). When I search for llvm I get them in /usr/bin. some of the links to the binaries are broken(llvm-gcc,llvm-g++,llvm-cpp,etc.) the include files are found within /usr/include/llvm and libs at /usr/lib/llvm. How to compile them using g++? I tried to compile the kaleidoscope code given in the tutorial (http://llvm.org/docs/tutorial/LangImpl3.html) as per directed, but it fails to compile.. I get this... toy.cpp:5:30: error: llvm/LLVMContext.h: No such file or directory toy.cpp:352: error: ‘getGlobalContext’ was not declared in this scope toy.cpp: In member function ‘virtual llvm::Value* NumberExprAST::Codegen()’: toy.cpp:358: error: ‘getGlobalContext’ was not declared in this scope toy.cpp: In member function ‘virtual llvm::Value* BinaryExprAST::Codegen()’: toy.cpp:379: error: ‘getDoubleTy’ is not a member of ‘llvm::Type’ toy.cpp:379: error: ‘getGlobalContext’ was not declared in this scope toy.cpp: In member function ‘llvm::Function* PrototypeAST::Codegen()’: toy.cpp:407: error: ‘getDoubleTy’ is not a member of ‘llvm::Type’ toy.cpp:407: error: ‘getGlobalContext’ was not declared in this scope toy.cpp:408: error: ‘getDoubleTy’ is not a member of ‘llvm::Type’ toy.cpp: In member function ‘llvm::Function* FunctionAST::Codegen()’: toy.cpp:454: error: ‘getGlobalContext’ was not declared in this scope toy.cpp: In function ‘int main()’: toy.cpp:543: error: ‘LLVMContext’ was not declared in this scope toy.cpp:543: error: ‘Context’ was not declared in this scope toy.cpp:543: error: ‘getGlobalContext’ was not declared in this scope I cannot find the LLVMContext.h file too. so i guess this might be a version problem. what should i do to make it work? some help would be good! thanks in advance... :)

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  • SQL Stored Queries - use result of query as boolean based on existence of records

    - by Christian Mann
    Just getting into SQL stored queries right now... anyway, here's my database schema (simplified for YOUR convenience): member ------ id INT PK board ------ id INT PK officer ------ id INT PK If you're into OOP, Officer Inherits Board Inherits Member. In other words, if someone is listed on the officer table, s/he is listed on the board table and the member table. I want to find out the highest privilege level someone has. So far my SP looks like this: DELIMITER // CREATE PROCEDURE GetAuthLevel(IN targetID MEDIUMINT) BEGIN IF SELECT `id` FROM `member` WHERE `id` = targetID; THEN IF SELECT `id` FROM `board` WHERE `id` = targetID; THEN IF SELECT `id` FROM `officer` WHERE `id` = targetID; THEN RETURN 3; /*officer*/ ELSE RETURN 2; /*board member*/ ELSE RETURN 1; /*general member*/ ELSE RETURN 0; /*not a member*/ END // DELIMITER ; The exact text of the error is #1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELECT id FROM member WHERE id = targetID; THEN IF SEL' at line 4 I suspect the issue is in the arguments for the IF blocks. What I want to do is return true if the result-set is at least one -- i.e. the id was found in the table. Do any of you guys see anything to do here, or should I reconsider my database design into this:? person ------ id INT PK level SMALLINT

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  • Setting javascript prototype function within object class declaration

    - by Tauren
    Normally, I've seen prototype functions declared outside the class definition, like this: function Container(param) { this.member = param; } Container.prototype.stamp = function (string) { return this.member + string; } var container1 = new Container('A'); alert(container1.member); alert(container1.stamp('X')); This code produces two alerts with the values "A" and "AX". I'd like to define the prototype function INSIDE of the class definition. Is there anything wrong with doing something like this? function Container(param) { this.member = param; if (!Container.prototype.stamp) { Container.prototype.stamp = function() { return this.member + string; } } } I was trying this so that I could access a private variable in the class. But I've discovered that if my prototype function references a private var, the value of the private var is always the value that was used when the prototype function was INITIALLY created, not the value in the object instance: Container = function(param) { this.member = param; var privateVar = param; if (!Container.prototype.stamp) { Container.prototype.stamp = function(string) { return privateVar + this.member + string; } } } var container1 = new Container('A'); var container2 = new Container('B'); alert(container1.stamp('X')); alert(container2.stamp('X')); This code produces two alerts with the values "AAX" and "ABX". I was hoping the output would be "AAX" and "BBX". I'm curious why this doesn't work, and if there is some other pattern that I could use instead.

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  • Which database I can used and relationship in it ??

    - by mimo-hamad
    My projece make me confused which I didn't find clear things that make me understand the required database and the relationships in it So, would a super one help me to solve it ?!! ;D this is required: 1) Model the data stored in the database (Identify the entities, roles, relationships, constraints, etc.) 2) Write the Oracle commands to create the database, find appropriate data, and populate the database 3) Write five different queries on your database, using the SELECT/FROM/WHERE construct provided in SQL. Your five queries should illustrate several different aspects of database querying, such as: a. Queries over more than one relation (by listing more than one relation in the FROM clause) b. Queries involving aggregate functions, such as SUM, COUNT, and AVG c. Queries involving complicated selects and joins d. Queries involving GROUP BY, HAVING or other similar functions. e. Queries that require the use of the DISTINCT keyword. And this the condition that we need to determine it to solve the required Q's above : 5) It is desired to develop an Internet membership club to buy products at special prices online. To join, new members must be referred by another existing member of the club. The system will keep the following information for each member: The member ID, referring member, birth date, member name, address, phone, mobile, credit card type, number and expiration date. The items are always shipped to the member's address noted in the membership application. The shipping fees will differ for each order.For each item to be requested, the member will select an item from a long list of possible items. For each item in the database, we store an item ID, an item name, description, and list price. The list price will be different from the actual sale price. The available quantity and the back-ordered quantity (the back-ordered quantity is the quantity on-order by the club from its suppliers) is also noted

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  • stealing inside the move constructor

    - by FredOverflow
    During the implementation of the move constructor of a toy class, I noticed a pattern: array2D(array2D&& that) { data_ = that.data_; that.data_ = 0; height_ = that.height_; that.height_ = 0; width_ = that.width_; that.width_ = 0; size_ = that.size_; that.size_ = 0; } The pattern obviously being: member = that.member; that.member = 0; So I wrote a preprocessor macro to make stealing less verbose and error-prone: #define STEAL(member) member = that.member; that.member = 0; Now the implementation looks as following: array2D(array2D&& that) { STEAL(data_); STEAL(height_); STEAL(width_); STEAL(size_); } Are there any downsides to this? Is there a cleaner solution that does not require the preprocessor?

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  • ActionController::RoutingError (No route matches {:action=>"show", :controller=>"users", :id=>nil}):

    - by Matt Bishop
    I have been trying to fix this routing error for a long time. I would appreciate any assistance! This error is preventing me from being able to authenticate. Here is what I am getting in my Heroku logs. app/controllers/authentications_controller.rb:12:in `create' ActionController::RoutingError (No route matches {:action=>"show", :controller=>"users", :id=>nil}) Here is the routes.rb file: Company::Application.routes.draw do resources :profile_individual resources :careers match 'careers' => 'careers#index' match 'about' => 'about#index' constraints(:subdomain => /^$|www/) do devise_for :users resources :authentications, :identities #, :beta_invitations resources :users do resources :invitations, :controller => 'UserInvitation' do post :upload, :on => :collection get :email_template, :on => :collection get :plaintext_template, :on => :collection get :facebook_invitation, :on => :collection end member do get :summary get :recruits get :friends_events get :events_near_me get :recent_activity get :impact get :campaigns end end resources :password_resets do get 'password_reset' => 'password_resets#show', :as => 'password_reset' end resources :events, :only => [:new, :index, :create] resources :organizations, :only => [:index, :create] resources :orders do post :ipn, :on => :member resource :payment do member do post :relay_response get :receipt end end resource :paypal_integration do member do get :authorize get :cancel post :finalize end end end match '/users/:id/impact/money/:d' => 'users#impact_money_graph', :constraints => {:d => /\d+{4}_\d+{2}-\d+{2}/}, :as => :user_impact_money match '/users/:id/impact/money' => 'users#impact_money_graph', :as => :user_impact_money match '/users/:id/impact/recruits/:d' => 'users#impact_recruits_graph', :constraints => {:d => /\d+{4}_\d+{2}-\d+{2}/}, :as => :user_impact_recruits match '/users/:id/impact/recruits' => 'users#impact_recruits_graph', :as => :user_impact_recruits match '/auth/failure' => 'authentications#failure' match '/auth/:provider/callback' => 'authentications#create' match '/auth/:provider/callback' => 'authentications#show', :controller => 'users', :as => :login match '/logout' => 'authentications#destroy', :as => :logout match '/login' => 'authentications#new', :as => :login match "/join_team/:id" => "team_members#join", :as => :join_team match "/rsvp/:id" => "rsvps#show", :as => :rsvp match "/signup" => 'authentications#signup', :as => :signup match "/beacon/:id.gif" => "email_beacons#show", :as => :email_beacon root :to => "homes#show" match '/corporate_giving' => "homes#corporate_giving" end constraints(Subdomain) do resource :organization, :path => "/", :only => [:edit, :update] do member do get :org_photos_videos get :org_recent_activity end end resources :events, :except => [:index] do post :publish, :on => :member resource :supporter_invite resource :team_management do post :mailer, :on => :member end resource :team_member do post :invite, :on => :member end resource :rsvp do put :make_order, :on => :collection get :make_order, :on => :collection end resources :invites do post :upload, :on => :collection end resources :ticket_tiers, :team_members end match "/events" => redirect("/") root :to => "organizations#show" end namespace :admin do resources :stats resources :organizations resources :campaigns do resources :rewards resources :contents put :header, :action => 'header_update' end resources :users do member do post :grant_access post :revoke_access end end resources :nonprofits do member do put :approve put :revoke end end end resources :campaigns do get :find_charities, :on => :collection get :how_many_charities, :on => :collection member do post :join get :join post :header, :action => 'header_creation' put :header, :action => 'header_update' end resources :rewards resources :contents resource :donations do resource :paypal_integration, :controller => 'donations' do member do get :authorize get :cancel post :finalize end end end end match '/campaigns/:id/graph/:d' => 'campaigns#graph', :constraints => {:d => /\d+{4}_\d+ {2}-\d+{2}/}, :as => :graph_campaign match '/campaigns/:id/graph' => 'campaigns#graph', :as => :graph_campaign resources :business_campaigns, :controller => 'campaigns' resources :businesses do put :logo, :on => :collection, :action => 'upload_logo' member do get :summary get :recruits get :friends_events get :events_near_me get :recent_activity get :impact get :campaigns end end resources :nonprofit_campaigns, :controller => 'campaigns' resources :nonprofits do put :logo, :on => :collection, :action => 'upload_logo' member do get :summary get :recruits get :friends_events get :events_near_me get :recent_activity get :impact get :campaigns get :supporting_campaigns end end resources :publicities match '/campaigns/:campaign_id/rewards/:id' => 'campaigns#reward', :via => :get match "/robots.txt" => "application#robots_txt" match "/beta_invitations" => redirect('/') resource :sitemap resources :referrals end Here is my authentications_controller.rb file class AuthenticationsController < ApplicationController skip_before_filter :require_beta_access before_filter :redirect_to_profile_if_logged_in, :only => [:create, :new] layout :resolve_layout def create omniauth = request.env["omniauth.auth"] authentication = Authentication.find_by_provider_and_uid(omniauth['provider'], omniauth['uid']) if authentication && authentication.user.present? sign_in(:user, authentication.user) redirect_to session[:redirect_to] || user_path(current_user, :subdomain => nil) elsif current_user current_user.authentications.create!(:provider => omniauth['provider'], :uid => omniauth['uid']) redirect_to session[:redirect_to] || user_path(current_user, :subdomain => nil) else user = User.new user.apply_omniauth(omniauth) logger.debug "=======================auth=============================" logger.debug session[:referrer_token] logger.debug "========================================================" if session[:referrer_token] publicity = Publicity.find_by_token(session[:referrer_token]) user.invited_by = publicity user.recruited_by = publicity end if user.save sign_in(user) unless session[:redirect_to] session[:referrer_token] = nil end redirect_to session[:redirect_to] || user_path(current_user, :subdomain => nil) #redirect_to session[:redirect_to] || campaigns_url(:tc => request.env['omniauth.params']['tc']) #tc is for AB testing else session[:omniauth] = omniauth.except('extra') redirect_to signup_path end end end def failure flash[:error] = "Please check your email and password and try again" redirect_to login_path end def destroy reset_session redirect_to root_path end def signup # end private def redirect_to_profile_if_logged_in redirect_to user_path(current_user.permalink) if current_user end def resolve_layout case action_name when "new", "signup" "authentication" else "selfcontained" end end end I am adding my appplication_controller.rb too: class ApplicationController < ActionController::Base #Wrote by George for beta users -before_filter :require_beta_access before_filter :save_referrer_token protect_from_forgery helper_method :organization_admin?, :team_member?, :profile_url, :current_profile def set_headers # Set our headers here end def save_referrer_token #session.delete(:referrer_token) if params[:ref] publicity = Publicity.find_by_token(params[:ref]) logger.debug "========================================================" logger.debug current_profile.nil? logger.debug publicity.creator logger.debug current_profile logger.debug current_profile != publicity.creator session[:referrer_token] = params[:ref] if current_profile.nil? or publicity.creator != current_profile logger.debug session[:referrer_token] logger.debug "========================================================" end end def robots_txt robots = File.read(Rails.root + "public/robots.#{Rails.env}.txt") render :text => robots, :layout => false, :content_type => "text/plain" end def load_organization @organization = Organization.find_by_permalink(request.subdomain) raise ActiveRecord::RecordNotFound if @organization.nil? end def require_user unless current_user session[:redirect_to] = request.url redirect_to login_url(:host => request.domain) end end def require_beta_access if !current_user redirect_to root_url(:host => request.domain) elsif !current_user.beta_access? redirect_to new_beta_invitation_url(:host => request.domain) end end def require_organization_admin unless organization_admin? redirect_to root_url(:subdomain => @organization.permalink) end end def team_member? if current_user && @event.team_memberships.where(:user_id => current_user.id).count != 0 true end end def organization_admin? if current_user && current_user.beta_access? && @organization && @organization.memberships.where(:user_id => current_user.id, :role => 'admin').count != 0 true end end def profile_url(profile, opt = nil) if profile == current_user user_url(profile, :host => opt[:host]) elsif profile.is_a? BusinessProfile business_url(profile) elsif profile.is_a? NonprofitProfile nonprofit_url(profile) end end def set_current_profile(profile) session[:current_profile] = profile end def current_user @current_user ||= User.find_by_auth_token!(cookies[:auth_token]) if cookies[:auth_token] end def current_profile #if session session[:current_profile] || current_user #else # nil #end end IGIVEMORE_HTML5_OPTIOINS = { :style => 'z-index: 0;',:width => '290', :height => '200', :frameborder => '0', :url_params => {:wmode=>"opaque"} } def campaign_header_body(camp, opt = IGIVEMORE_HTML5_OPTIOINS) if camp.header_type == Campaign::HEADER_YOUTUBE youtube_html5(camp.header_url, opt).html_safe elsif camp.header_type == Campaign::HEADER_IMAGE "<img src=\"#{camp.header_url}\" width=\"#{opt[:width]}\" height=\"#{opt[:height]}\"/>'".html_safe else "Unsupported Type!!" end end def youtube_html5(url, opt) begin video = YouTubeIt::Client.new.video_by(url) video.embed_html5(opt).gsub(/http:\/\//,"https://") rescue => e "<div style='color:red; width:290px; height:100px; padding-top:100px'>Given Video URL has problem.</div>" end end end

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  • How to check if an entityset is populated

    - by TheQ
    How can i check if an entityset of a linq-object is populated or not? Example code below. My model have two methods, one joins data, and the other does not: public static Member GetMemberWithSettings(Guid memberId) { using (DataContext db = new DataContext()) { DataLoadOptions dataLoadOptions = new DataLoadOptions(); dataLoadOptions.LoadWith<Member>(x => x.Settings); db.LoadOptions = dataLoadOptions; var query = from x in db.Members where x.MemberId == memberId select x; return query.FirstOrDefault(); } } public static Member GetMember(Guid memberId) { using (DataContext db = new DataContext()) { var query = from x in db.Members where x.MemberId == memberId select x; return query.FirstOrDefault(); } } Then my control have the following code: Member member1 = Member.GetMemberWithSettings(memberId); Member member2 = Member.GetMember(memberId); Debug.WriteLine(member1.Settings.Count); Debug.WriteLine(member2.Settings.Count); The last line will generate a "Cannot access a disposed object" exception. I know that i can get rid of that exception just by not disposing the datacontext, but then the last line will generate a new query to the database, and i don't want that. What i would like is something like: Debug.WriteLine((member1.Settings.IsPopulated()) ? member1.Settings.Count : -1); Debug.WriteLine((member2.Settings.IsPopulated()) ? member2.Settings.Count : -1); Is it possible?

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  • How to check if a child-object is populated

    - by TheQ
    How can i check if a child-object of a linq-object is populated or not? Example code below. My model have two methods, one joins data, and the other does not: public static Member GetMemberWithPhoto(Guid memberId) { using (DataContext db = new DataContext()) { DataLoadOptions dataLoadOptions = new DataLoadOptions(); dataLoadOptions.LoadWith<Member>(x => x.UserPhoto); db.LoadOptions = dataLoadOptions; var query = from x in db.Members where x.MemberId == memberId select x; return query.FirstOrDefault(); } } public static Member GetMember(Guid memberId) { using (DataContext db = new DataContext()) { var query = from x in db.Members where x.MemberId == memberId select x; return query.FirstOrDefault(); } } Then my control have the following code: Member member1 = Member.GetMemberWithPhoto(memberId); Member member2 = Member.GetMember(memberId); Debug.WriteLine(member1.UserPhoto.ToString()); Debug.WriteLine(member2.UserPhoto.ToString()); The last line will generate a "Cannot access a disposed object" exception. I know that i can get rid of that exception just by not disposing the datacontext, but then the last line will generate a new query to the database, and i don't want that. What i would like is something like: Debug.WriteLine((member1.UserPhoto.IsPopulated()) ? member1.UserPhoto.ToString() : "none"); Debug.WriteLine((member2.UserPhoto.IsPopulated()) ? member2.UserPhoto.ToString() : "none"); Is it possible?

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  • Windows cant repair even with sfc /scannow

    - by GeekyDewd
    Clean install of windows 8, then installed the windows 8.1 update (after all other updates). CBS Log: CBS Log on Google Drive Important pieces of the log: Found: {l:32 b:LrOXAtJDCCTN+z+D1bKj7ogYIrX7sfCCDh+wVBfsrCQ=} Expected: {l:32 b:n520k714Uu3utHa5JGQ6HQYbZphKhlMWq5pEmfnCDuw=} 2014-05-17 21:35:38, Info CSI 00000505 [SR] Cannot repair member file [l:36{18}]"Amd64\CNBJ2530.DPB" of prncacla.inf, Version = 6.3.9600.16384, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type = [l:24{12}]"driverUpdate", TypeName neutral, PublicKey neutral in the store, hash mismatch 2014-05-17 21:35:40, Info CSI 00000506 Hashes for file member \SystemRoot\WinSxS\amd64_prncacla.inf_31bf3856ad364e35_6.3.9600.16384_none_9590ba64d5b91f79\Amd64\CNBJ2530.DPB do not match actual file [l:36{18}]"Amd64\CNBJ2530.DPB" : Found: {l:32 b:LrOXAtJDCCTN+z+D1bKj7ogYIrX7sfCCDh+wVBfsrCQ=} Expected: {l:32 b:n520k714Uu3utHa5JGQ6HQYbZphKhlMWq5pEmfnCDuw=} 2014-05-17 21:35:40, Info CSI 00000507 [SR] Cannot repair member file [l:36{18}]"Amd64\CNBJ2530.DPB" of prncacla.inf, Version = 6.3.9600.16384, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type = [l:24{12}]"driverUpdate", TypeName neutral, PublicKey neutral in the store, hash mismatch 2014-05-17 21:35:40, Info CSI 00000508 [SR] This component was referenced by [l:186{93}]"Microsoft-Windows-Printer-Drivers-Package~31bf3856ad364e35~amd64~~6.3.9600.16384.INF_prncacla" 2014-05-17 21:35:43, Info CSI 00000509 [DIRSD OWNER WARNING] Directory [ml:520{260},l:138{69}]"\??\C:\WINDOWS\System32\WindowsPowerShell\v1.0\Modules\NetSecurity\en" is not owned but specifies SDDL in component Networking-MPSSVC-WMI.Resources, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture = [l:10{5}]"en-US", VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral And: Found: {l:32 b:LrOXAtJDCCTN+z+D1bKj7ogYIrX7sfCCDh+wVBfsrCQ=} Expected: {l:32 b:n520k714Uu3utHa5JGQ6HQYbZphKhlMWq5pEmfnCDuw=} 2014-05-17 21:42:12, Info CSI 00000888 [SR] Cannot repair member file [l:36{18}]"Amd64\CNBJ2530.DPB" of prncacla.inf, Version = 6.3.9600.16384, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type = [l:24{12}]"driverUpdate", TypeName neutral, PublicKey neutral in the store, hash mismatch 2014-05-17 21:42:13, Info CSI 00000889 Hashes for file member \SystemRoot\WinSxS\amd64_prncacla.inf_31bf3856ad364e35_6.3.9600.16384_none_9590ba64d5b91f79\Amd64\CNBJ2530.DPB do not match actual file [l:36{18}]"Amd64\CNBJ2530.DPB" : Found: {l:32 b:LrOXAtJDCCTN+z+D1bKj7ogYIrX7sfCCDh+wVBfsrCQ=} Expected: {l:32 b:n520k714Uu3utHa5JGQ6HQYbZphKhlMWq5pEmfnCDuw=} 2014-05-17 21:42:13, Info CSI 0000088a [SR] Cannot repair member file [l:36{18}]"Amd64\CNBJ2530.DPB" of prncacla.inf, Version = 6.3.9600.16384, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type = [l:24{12}]"driverUpdate", TypeName neutral, PublicKey neutral in the store, hash mismatch 2014-05-17 21:42:13, Info CSI 0000088b [SR] This component was referenced by [l:186{93}]"Microsoft-Windows-Printer-Drivers-Package~31bf3856ad364e35~amd64~~6.3.9600.16384.INF_prncacla" 2014-05-17 21:42:13, Info CSI 0000088c [SR] Repair complete

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  • gem install of mongrel

    - by atlantis
    I initiated myself into rails development yesterday. I installed ruby 1.9.1 , rubygems and rails. Running 'gem install mongrel' worked fine and ostensibly installed mongrel too. I am slightly puzzled because script/server starts webrick by default 'which mongrel' returns nothing 'locate mongrel' returns lots of entries like . /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1 /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel . . . /usr/local/bin/mongrel_rails /usr/local/lib/ruby/gems/1.9.1/cache/mongrel-1.1.5.gem /usr/local/lib/ruby/gems/1.9.1/doc/actionpack-2.3.2/rdoc/files/lib/action_controller/vendor/rack-1_0/rack/handler/evented_mongrel_rb.html /usr/local/lib/ruby/gems/1.9.1/doc/actionpack-2.3.2/rdoc/files/lib/action_controller/vendor/rack-1_0/rack/handler/mongrel_rb.html /usr/local/lib/ruby/gems/1.9.1/doc/actionpack-2.3.2/rdoc/files/lib/action_controller/vendor/rack-1_0/rack/handler/swiftiplied_mongrel_rb.html /usr/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/evented_mongrel.rb /usr/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/mongrel.rb /usr/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/swiftiplied_mongrel.rb /usr/local/lib/ruby/gems/1.9.1/gems/mongrel-1.1.5 . . . Does look like I have mongrel installed (both the default installation and my custom install). So why doesn't which mongrel return something. Also trying to reinstall mongrel using 'gem install mongrel' returns throws its own set of exceptions : Building native extensions. This could take a while... ERROR: Error installing mongrel: ERROR: Failed to build gem native extension. /usr/local/bin/ruby extconf.rb install mongrel checking for main() in -lc... yes creating Makefile make gcc -I. -I/usr/local/include/ruby-1.9.1/i386-darwin9.7.0 -I/usr/local/include/ruby-1.9.1/ruby/backward -I/usr/local/include/ruby-1.9.1 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -fno-common -D_XOPEN_SOURCE=1 -O2 -g -Wall -Wno-parentheses -fno-common -pipe -fno-common -o http11.o -c http11.c http11.c: In function 'http_field': http11.c:77: error: 'struct RString' has no member named 'ptr' http11.c:77: error: 'struct RString' has no member named 'len' http11.c:77: warning: left-hand operand of comma expression has no effect http11.c:77: warning: statement with no effect http11.c: In function 'header_done': http11.c:172: error: 'struct RString' has no member named 'ptr' http11.c:174: error: 'struct RString' has no member named 'ptr' http11.c:176: error: 'struct RString' has no member named 'ptr' http11.c:177: error: 'struct RString' has no member named 'len' http11.c: In function 'HttpParser_execute': http11.c:298: error: 'struct RString' has no member named 'ptr' http11.c:299: error: 'struct RString' has no member named 'len' make: *** [http11.o] Error 1

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  • `gem install mongrel` fails with ruby 1.9.1

    - by atlantis
    I initiated myself into rails development yesterday. I installed ruby 1.9.1, rubygems and rails. Running gem install mongrel worked fine and ostensibly installed mongrel too. I am slightly puzzled because: script/server starts webrick by default which mongrel returns nothing locate mongrel returns lots of entries like /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1 /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel . . . /usr/local/bin/mongrel_rails /usr/local/lib/ruby/gems/1.9.1/cache/mongrel-1.1.5.gem /usr/local/lib/ruby/gems/1.9.1/doc/actionpack-2.3.2/rdoc/files/lib/action_controller/vendor/rack-1_0/rack/handler/evented_mongrel_rb.html /usr/local/lib/ruby/gems/1.9.1/doc/actionpack-2.3.2/rdoc/files/lib/action_controller/vendor/rack-1_0/rack/handler/mongrel_rb.html /usr/local/lib/ruby/gems/1.9.1/doc/actionpack-2.3.2/rdoc/files/lib/action_controller/vendor/rack-1_0/rack/handler/swiftiplied_mongrel_rb.html /usr/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/evented_mongrel.rb /usr/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/mongrel.rb /usr/local/lib/ruby/gems/1.9.1/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/swiftiplied_mongrel.rb /usr/local/lib/ruby/gems/1.9.1/gems/mongrel-1.1.5 . . . Does look like I have mongrel installed (both the default installation and my custom install). So why doesn't which mongrel return something. Also trying to reinstall mongrel using gem install mongrel returns throws its own set of exceptions: Building native extensions. This could take a while... ERROR: Error installing mongrel: ERROR: Failed to build gem native extension. /usr/local/bin/ruby extconf.rb install mongrel checking for main() in -lc... yes creating Makefile make gcc -I. -I/usr/local/include/ruby-1.9.1/i386-darwin9.7.0 -I/usr/local/include/ruby-1.9.1/ruby/backward -I/usr/local/include/ruby-1.9.1 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -fno-common -D_XOPEN_SOURCE=1 -O2 -g -Wall -Wno-parentheses -fno-common -pipe -fno-common -o http11.o -c http11.c http11.c: In function 'http_field': http11.c:77: error: 'struct RString' has no member named 'ptr' http11.c:77: error: 'struct RString' has no member named 'len' http11.c:77: warning: left-hand operand of comma expression has no effect http11.c:77: warning: statement with no effect http11.c: In function 'header_done': http11.c:172: error: 'struct RString' has no member named 'ptr' http11.c:174: error: 'struct RString' has no member named 'ptr' http11.c:176: error: 'struct RString' has no member named 'ptr' http11.c:177: error: 'struct RString' has no member named 'len' http11.c: In function 'HttpParser_execute': http11.c:298: error: 'struct RString' has no member named 'ptr' http11.c:299: error: 'struct RString' has no member named 'len' make: *** [http11.o] Error 1

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  • C++ shared objects

    - by Klaus
    Hello, I have got four classes A, B, C and D. Class A has a member b of class B. Class B has a member c of class C. A has a member D* dpointer; This hierarchy has to be preserved (in fact this is a GUI with app, window, panel as A, B and C). Now B and C must use a method from *dpointer. Is there something more elegant than giving dpointer as a member of B and C ? Is it bad ?

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