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  • enums in C# - assignment

    - by Zka
    How does one do this in c#? Let's say that myclass has : private enum Days{}; 1) How does one add data to the enum inside the myclass with the help of the constructor? As in : myclass my = new myclass(Monday,Friday); so that the enum inside the class gets the "Monday, Friday" properties. 2) Can one also make a property for an enume inside the class once it is initialized ? For example : my.Days = new enum Days(Tuesday); //where the old settings are replaced.

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  • Automatic Schema Validation using NHibernate/ActiveRecord

    - by Krembo
    Hi, let's assume I have a table of Products with columns: Id, Name, Price and using NHibernate (or ActiveRecord) I map the table to the POCO: public class Product { public virtual long Id { get; set; } public virtual string Name { get; set; } public virtual double Price { get; set; } } Now if someday a new column named ShipmentPrice (let's assume it's double too) will be added to the Products table, is there any way I can automatically know that. For saying automatically I mean adding code to do that or getting an exception? (I assume I don't have control on the columns of the table or a way to know of any changes to the table's schema in advance)

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  • Can Automapper populate a strongly typed object from the data in a NameValueCollection?

    - by Seth Petry-Johnson
    Can Automapper map values from a NameValueCollection onto an object, where target.Foo receives the value stored in the collection under the "Foo" key? I have a business object that stores some data in named properties and other data in a property bag. Different views make different assumptions about the data in the property bag, which I capture in page-specific view models. I want to use AutoMapper to map both the "inherent" attributes (the ones that always exist) as well as the "dynamic" attributes (the ones that vary per view and may or may not exist).

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  • Passing an instantiated class to concrete class derived by Castle Windsor

    - by Tr1stan
    I have a system that I'm using to test some new architecture. I have the following setup (In MVC2 .Net - C Sharp): View < Controller < Service < Repository < DB I'm using Castle Windsor as my DI (IoC) controller, and this is working just fine in both the Service and Repo layers. However, I'm now at a point where I would like to pass an Entity Framework (DatabaseNameEntity) to the constructor to the Service, and then to the Repo, so that I have something similar to a Unit of Work pattern per request (This feels like what I'm trying to achieve anyway) - and I'm having trouble working out how this can be done using Castle Windsor. Am I going off on a silly tangent? Any pointers appreciated.

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  • Django : proper way to use model, duplicates!

    - by llazzaro
    Hello, I have a question about the proper, best way to manage the model. I am relative newbie to django, so I think I need to read more docs, tutorials,etc (suggestions for this would be cool!). Anyway, this is my question : I have a python web crawler, that is "connected" with django model. Crawling is done once a day, so its really common to find "duplicates". To avoid duplicates I do this : cars = Car.Objects.filter(name=crawledItem['name']) if len(cars) 0: #object already exists, update it car = cars[0] else: car = Car() #some non-relevant code here car.save() I want to know, if this is the proper/correct way to do it or its any "automatic" way to do it. Its possible to put the logic inside the Car() constructor also, should I do that? Thanks a lot!

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  • Confusing rails div id naming

    - by RailAddict
    I have started using jQuery and rails. I have made a simple form that submits to the database and updates the page without reloading with ajax. In my jQuery functions I used $"#new_comment" for the id name (in my application.js and create.js.erb files) but on my articles/show view file, I named the div "add_comment" and it works.. I renamed it new_comment and it breaks! Can someone explain it please? I get an error: "no action responded to 1" My function in my controller is "create".

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  • Avoiding improper std::string initialization with NULL const char* using g++

    - by pachanga
    A there any g++ options which can detect improper initialization of std::string with NULL const char*? I was in the process of turning some int fields into std::string ones, i.e: struct Foo { int id; Foo() : id(0) {} }; ...turned into: struct Foo { std::string id; Foo() : id(0) {} //oooops! }; I completely overlooked bad 'id' initialization with 0 and g++ gave me no warnings at all. This error was detected in the run time(std::string constructor threw an exception) but I'd really like to detect such stuff in the compile time. Is there any way?

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  • TextField instance inside a button Layer is null

    - by php html
    I've created an button object in flash. The button contains 2 layers. One is the background image and on top of it is a textField. The textfield is dynamic. I use the button inside a movieclip and I export it in a SWC. The I'm trying to use it in flex. I'm trying to do this: var myComponent:MyComponent = new MyComponent(); myComponent.button01.theTextField.text = "Caption"; I get and instance of the button, but the instance of the textField is null and I'm not able to change the text(but the default text appears onscreen). Does anyone has any idea what is wrong? Here is the button timeline(Layer 2 contains the textfield, and the textfield instance is named theTextField):

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  • Initialize Pointer Through Function

    - by SoulBeaver
    I was browsing my teacher's code when I stumbled across this: Order* order1 = NULL; then order1 = order(customer1, product2); which calls Order* order(Customer* customer, Product* product) { return new Order(customer, product); } This looks like silly code. I'm not sure why, but the teacher initialized all pointers to NULL instead of declaring them right away(looking at the code it's entirely possible, but he chose not to). My question is: is this good or acceptable code? Does the function call have any benefits over calling a constructor explicitely? And how does new work in this case? Can I imagine the code now as kind of like: order1 = new Order(customer, product);

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  • iPHone: Unit/Logic Tests initWithNibName

    - by pion
    I have setup my Logic Tests following the instructions on http://developer.apple.com/iphone/library/documentation/Xcode/Conceptual/iphone_development/135-Unit_Testing_Applications/unit_testing_applications.html. I could test a couple classes successfully. But I got error when testing the following: - (id)init { if (self = [super initWithNibName:@"Foo" bundle:nil]) { ... } return self; } The error message is -[UIViewController _loadViewFromNibNamed:bundle:] was unable to load a nib named "Foo" My question: Did I do something wrong? Missed something? or I cannot test -initWithNibName using Logic Tests technique. Thanks in advance for your help.

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  • Is it possible to compile IronRuby code to a .NET assembly (EXE or DLL)

    - by Chris Ammerman
    My scenario consists of the following points. I have a packaged software product I am developing in C# Since it is a packaged product, the public interfaces of the assemblies need to be tightly controlled... All assemblies are strong-named Any classes that don't absolutely have to be "public" are "internal" I want to write unit tests for those "internal" classes, since they are the bulk of the code And finally.... I want to try writing the unit tests in Ruby. Since the unit tests would be external to the assembly containing the code under test, the assemblies under test would each need to have an "InternalsVisibleTo" attribute specifying the name of the unit test assembly. Which of course would mean that the Ruby unit tests would have to compile down to a .NET assembly so they can be given access in this way. Can this be done? If so, how? All I can find on the web about "compiling IronRuby" is about building the actual IronRuby runtime from source.

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  • Clojure: Equivalent to Common Lisp READ function?

    - by jkndrkn
    Hi there. When I want to read in an S-expression stored in a file into a running Common Lisp program, I do the following: (defun load-file (filename) "Loads data corresponding to a s-expression in file with name FILENAME." (with-open-file (stream filename) (read stream))) If, for example, I have a file named foo.txt that contains the S-expression (1 2 3), the above function will return that S-expression if called as follows: (load-file "foo.txt"). I've been searching and searching and have not found an equally elegant solution in Clojure. Any ideas? Thanks!

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  • Installing ant; clearly misunderstanding JAVA_HOME

    - by StormShadow
    Hey all, I am installing ant on a Windows XP machine, and am following the instructions at Apache's manual site. It said to set JAVA_HOME, so I checked, saw there was no environment variable named JAVA_HOME, made one, and set it to "C:\Program Files\Java\jdk1.6.0_19" When I try to run ant debug, however, it tells me that JAVA_HOME is currently set to "C:\Program Files\Java\jre6" I'm guessing JAVA_HOME isn't an environment variable. But if it isn't one, I'm at a loss as to where to start looking for it. Anybody know? Edit: Oh yeah - it's bugging me for tools.jar as well, but I'm guessing that when I fix the JAVA_HOME issue, that will help the terminal find tools.jar as well. Or maybe I'm wrong. Thanks

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  • MySQL query, SUM of multiple colums

    - by Mick
    Hi I have multiple columns in a mySQL table. Three of the columns are named i100s, i60s and i25s and what I want to do is get the sum of all three entries . currently I have this code '$query= "SELECT SUM(i100s),SUM(i60s),SUM(i25s) AS tkit FROM event WHERE acc='100' " ; $result = mysql_query($query) or die(mysql_error()); $row = mysql_fetch_assoc($result) ; $total = $row['tkit'];' But it is not returning the correct result , can anyone help me please ? Thanks Mick

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  • SQL Server: position based on marks

    - by Rhys
    I am using SQL Server 2008. I have a Student table in which there are following fields: 1. StudentId, 2. StudentName, 3. Marks . I want to get a resultset in which there should be a column named “Position”. Something like “Select StudentId,StudentName,Marks, as Position from Student...” so that, depending on the marks a student scored, i can evaluate them as the 1st, 2nd or 20th position. If students have the same marks, then they have the same position. Thanks. Rhys

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  • Delphi debug a wrong unit

    - by Averroes
    This is an odd behaviour by my D2006 as it happens sometimes only. I have a project I want to debug. The file I want to debug is named 'Main.pas'. I have another unrelated project with the same Unit name and sometimes the Debug prompt me the wrong Main file instead of the Main unit from the current project. This have happened to me with other files with the same name. I can't debug then as the debug keys don't work (they just don't do anything). Do you have experienced the same problem? How can I fix it? Thanks.

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  • Excel Data List Validation in Powershell

    - by idazuwaika
    Hi, I have a range named "STATE". I want to set data validation in range ("A1") to only take value within this range using Powershell. Below is what I have tried. Does not work. I dont know what to put as 4th and 5th parameters. The first 3 are Excel constants equivalent to xlValidateList, xlValidAlertStop and xlBetween respectively. $ws.Range("A1").Validation.Add(3, 1, 1, "=STATE", 0) Please help. Thanks.

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  • Unpacking Argument Lists and Instantiating WTForms objects from web.py

    - by Morris Cornell-Morgan
    After a bit of searching, I've found that it's possible to instantiate a WTForms object in web.py using the following code: form = my_form(**web.input()) web.input() returns a "dictionary-like" web.storage object, but without the double asterisks WTForms will raise an exception: TypeError: formdata should be a multidict-type wrapper that supports the 'getlist' method From the Python documentation I understand that the two asterisks are used to unpack a dictionary of named arguments. That said, I'm still a bit confused about exactly what is going on. What makes the web.storage object returned by web.input() "dictionary-like" enough that it can be unpacked by ** but not "dictionary-like" enough that it can be passed as-is to the WTForms constructor? I know that this is an extremely basic question, but any advice to help a novice programmer would be greatly appreciated!

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  • Static lib that links another static lib and qmake? Odd linking error

    - by Dan O
    I have two qt .pro files, both using the lib TEMPLATE and staticlib CONFIG. The first library (lets call it 'core') is a dependency for the second lib (I'll call it 'foo'). In fact, there's a class in foo that extends a class in core, I will call this class Bar. When I instantiate the class (which is defined and implemented in foo, but extends a class (Bar) from core) in another project (not a lib) I get the following linking error: /usr/bin/ld: Undefined symbols: Bar::Bar() Basically, the linker cannot find the class in the core lib that has been derived in the foo lib, but ONLY when I instantiate the class in a third project that is using both libs. Is this behaviour expected? Regards, Dan O Update: I fixed it by directly invoking the Bars constructor in the third project before using derived class... does anyone know why I need to do this?

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  • SL4 - Binding DataGridTextColumn to a property

    - by Brent
    I have a DataGrid. In the DataGrid's AutoGeneratingColumn event I have some code that looks like this: if (e.Property.Name.Contains("MetaData")) { var descCol = new DataGridTextColumn(e.Property); var bnd = new Binding("Description"); bnd.Mode = BindingMode.TwoWay; descCol.Binding = bnd; e.Column = descCol; e.Column.Header = "Description"; return; } The column binds to a type MetaData which has a string property named Description that I would like displayed in my DataGrid. So far I've been unable to get the value of the Description property to display in my DataGrid. I think the path I am passing into the Binding constructor might be incorrect. I've tried "MetaData.Description" as well and it doesn't work either. Can anyone help me properly set up the binding on my DataGridTextColumn?

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  • installing simplejson on the google appengine

    - by user266564
    Super nub question time! I am trying to use simplejson on the google appengine. In a terminal on my machine I have simplejson installed and working. But my when I try to import it in a script running on the appengine I get an error saying no such library exists. If open the interactive console on my machine (from the link on http://localhost:8080/_ah/admin) and type "import simplejson" I get: Traceback (most recent call last): File "/home/chris/google_appengine/google/appengine/ext/admin/init.py", line 210, in post exec(compiled_code, globals()) File "", line 1, in ImportError: No module named simplejson Any thoughts?

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  • Java: Get Mainform object from JInternalFrame

    - by rodion
    Can I do this without reference to the object in the constructor? In other words, any class inherited from FrmTaoChild when creating must to add the button on the toolbar of the main window public class FrmTaoMain extends JFrame { JToolBar tbTask = new JToolBar(); public FrmTaoMain(String Caption) { super(Caption); ... FrmTaoChild FrmChild = new FrmTaoChild(tbTask,"test"); } } public class FrmTaoChild extends JInternalFrame { public FrmTaoChild(JToolBar tbTask, String Caption) { super (Caption); JButton btnTask = new JButton(Caption); tbTask.add(btnTask); } }

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  • Getting the starting shortcut in c#

    - by Flores
    Lets say that I have an executable and when it is started I want to know how it's started. I.e. I would like to know if it is started with a shortcut or directly. With this: string test = Environment.GetCommandLineArgs()[0]; I can get the path of the executable, but this is always the same, even if it's started by a shortcut. Lets say my executable is named c:\text.exe and I start it directly, then test = 'c:\test.exe' If I create a shortcut i.e. c:\shortcut.lnk (with target c:\test.exe) I want test to be 'c:\shortcut.exe' but it is 'c:\test.exe' I strongly suspect this to be impossible because the OS handles the shortcut part and the executable never can see the difference, but maybe someone has a creative idea?

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  • nHibernate session - Using repository pattern in Web, windows, wcf etc...

    - by alex
    I recently posted a question which was answered by Bryan Watts, regarding generic repository for nHibernate. I'm trying to design my data access to allow various facets - from ASP.net, WCF and Windows Forms / Windows services. I'm a bit confused re: session management etc.. How would I handle this? I've been checking out code such as: http://membranecms.googlecode.com/svn/ and questions such as: http://stackoverflow.com/questions/1207833/nhibernate-linq-session-management But what do i do if i don't just do things in a web based environment..? Do i need to create different repositories for each client? Or do i pass in the ISession into the (for example) UserRepository constructor..? ... as a side note I'm using nHibernate.Linq Also using fluent nHibernate to config my mapping

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  • What does BucketAlreadyOwnedByYou error (from Amazon S3) actually mean? I can't find any reason affe

    - by Phyo Wai Win
    Hi there, I am using Amazon S3 to back up my Rails app's mysql database. And I am using astrails-safe plugin to do that and I got the "Your previous request to create the named bucket succeeded and you already own it. (AWS::S3::BucketAlreadyOwnedByYou)" error back whenever I try to update it. I have checked that the folder in which I am going to back up is there in my account already. It's just that I can't upload the files from the code (using astrails-safe). Any help would be appreciated! Thanks.

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