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  • Gratuitous use of System.Runtime.Serialization attributes?

    - by rasx
    Is there any cost/drawback (apart from typing too much) to adorning a class with System.Runtime.Serialization attributes (like [DataContract]) such that it can be used locally as a direct reference to a desktop Client project or as a type for a WCF service? The goal here is to write a data-tier class that can be used in both rich client (WPF) and Web scenarios. My data classes will be in a project that is separate from Client and WCF (*.svc code-behind) code. Is this a valid attempt to reuse code?

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  • Fastest method for SQL Server inserts, updates, selects from C# ASP.Net 2.0+

    - by Ian
    Hi All, long time listener, first time caller. I use SPs and this isn't an SP vs code-behind "Build your SQL command" question. I'm looking for a high-throughput method for a backend app that handles many small transactions. I use SQLDataReader for most of the returns since forward only works in most cases for me. I've seen it done many ways, and used most of them myself. Methods that define and accept the stored procedure parameters as parameters themselves and build using cmd.Parameters.Add (with or without specifying the DB value type and/or length) Assembling your SP params and their values into an array or hashtable, then passing to a more abstract method that parses the collection and then runs cmd.Parameters.Add Classes that represent tables, initializing the class upon need, setting the public properties that represent the table fields, and calling methods like Save, Load, etc I'm sure there are others I've seen but can't think of at the moment as well. I'm open to all suggestions.

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  • Is Minus Zero some sort of JavaScript performance trick?

    - by James Wiseman
    Looking in the jQuery core I found the folloiwng code convention: nth: function(elem, i, match){ return match[3] - 0 === i; }, And I was really curious about the snippet match[3] - 0 Hunting around for '-0' on google isn't too productive, and a search for 'minus zero' brings back a reference to a Bob Dylan song. So, can anyone tell me. Is this some sort of performance trick, or is there a reason for doing this rather than a parseInt or parseFloat? Thanks

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  • mysql concat all field table

    - by hafizan
    Is there a way we can concat all field in the table(1 sql statement)(automatic) ? The reason was before user updated or delete a record,the record will push to another table for future reference.

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  • How to become sharepoint developer from ASP.NET/Silverlight developer?

    - by funwithcoding
    Hello friends, I heard from my peers that knowledge of sharepoint is going to be good for career. We do not use sharepoint at our office. So dont know how to get started. These are my sharepoint newbie questions Is learning sharepoint worth the effort? Where are the resources to learn sharepoint? Is there any reference project I should considering aiming to develop? Appreciate your inputs.

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  • How do i add a string template to views in .net mvc?

    - by Lina
    Hi, I have a newbie question,, how do i add a string template to the views folder in a .net mvc project? i have added a reference to StringTemplate.dll and antlr.runtime.dll but seems that is not enough. i.e. when i right-click on views and choose Add New Item i can't find a file with .st extension in the list that i get... how do i achieve that? Thanks a million in advance

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  • My first c# app and first null object exception

    - by Fresheyeball
    Total noob here. This is my first c# attempt, its a console application that simulates a drinking game called 'Left Right Center'. In the console I receive the following: CONSOLE Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object at LeftRightCenter.MainClass.Main (System.String[] args) [0x00038] in /Users/apple/Projects/LearningC/LearningC/Main.cs:80 [ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException: Object reference not set to an instance of an object at LeftRightCenter.MainClass.Main (System.String[] args) [0x00038] in /Users/apple/Projects/LearningC/LearningC/Main.cs:80 C# using System; namespace LeftRightCenter { class Player { //fields private int _quarters = 4; public int Quarters { get{ return _quarters; } set{ _quarters += value; } } public Player (string name) { } } class Dice { Random random = new Random(); public int Roll () { random = new Random (); int diceSide; diceSide = random.Next (0, 6); diceSide = (diceSide > 2) ? 3 : diceSide; return diceSide; } } class MainClass { static int activePlayer = 0; static int theCup = 0; static Player[] thePlayers = { new Player ("Jessica"), new Player ("Isaac"), new Player ("Ed"), new Player ("Bella"), new Player ("Elisa"), new Player ("Fake RedHead"), new Player ("Linda"), new Player ("MJ"), new Player ("Irene"), new Player("Devin") }; static Dice[] theDice = new Dice[2]; private static void MoveQuarter (int direction) { int numberOfPlayers = thePlayers.Length - 1; switch (direction) { case 0: thePlayers [activePlayer].Quarters = -1; theCup++; break; case 1: thePlayers [activePlayer].Quarters = -1; int leftPlayer = (activePlayer == 0) ? numberOfPlayers : activePlayer - 1; thePlayers [leftPlayer].Quarters = +1; break; case 2: thePlayers [activePlayer].Quarters = -1; int rightPlayer = (activePlayer == numberOfPlayers) ? 0 : activePlayer + 1; thePlayers [rightPlayer].Quarters = +1; break; } } public static void Main (string[] args) { int cupEndPoint = thePlayers.Length * 4 - 1; while (theCup < cupEndPoint) { foreach (Dice rattle in theDice) { if (thePlayers [activePlayer].Quarters > 0) { MoveQuarter (rattle.Roll ()); // this line seems to be the problem } } Console.WriteLine ("{0} Quarters In the Cup", theCup); } } } } I have no idea what the problem is or why, and my googling have proven more use confusing than helpful.

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  • Good programming style when handling multiple objects

    - by Glitch
    I've been programming a software version of a board game. Thus far I have written the classes which will correspond to physical objects on the game board. I'm well into writing the program logic, however I've found that many of the logic classes require access to the same objects. At first I was passing the appropriate objects to methods as they were called, but this was getting very tedious, particularly when the methods required many objects to perform their tasks. To solve this, I created a class which initialises and stores all the objects I need. This allows me to access an object from any class by calling Assets.dice(), for example. But now that I've thought about it, this doesn't seem right. This is why I'm here, I fear that I've created some sort of god class. Is this fear unfounded, or have I created a recipe for disaster?

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  • Programmatically add IP(s) or domain(s) to Relay Restrictions in SMTP Virtual Server on IIS 6

    - by RJ
    I have been given a task to create an admin page to programmatically add IPs or domains to a SMTP Relay Restrictions using C#. I spent some time researching this since yesterday and finally traced this down to a few posts on several website that use the System.DirectoryServices.DirectoryEntr class. Using the examples I found, I can add or deny IPs or domains under Connection control but not Relay Restrictions. What would be the commands in C# to add IPs to the Relay Restrictions? Below is a pic of the GUI in IIS for reference.-

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  • Trying to update an MVC 1.0 project to MVC 2.0

    - by Cptcecil
    I'm trying to update my project to MVC 2.0 from MVC 1.0. I've removed the references for System.Web.MVC to the newer versions. I'm getting an exception from the HTTPContext which reads "CurrentNotification = 'HttpContext.Current.CurrentNotification' threw an exception of type 'System.PlatformNotSupportedException'". What other binaries do I need to update a reference to, to get my project to work again?

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  • app engine jpa N-way joins ?

    - by cometta
    may i know is the latest version of jgae support N-way joins? or still limit to 2-way join? reference: http://gae-java-persistence.blogspot.com/2010/03/executing-simple-joins-across-owned.html?showComment=1276491851890_AIe9_BEqp-CCn0bibiOUY8JUbbSFwFE02aF9d68baX0squIcfBnve8K3iIT3IEhPhpJxEBSZQLlz8tH-NMq1XGzOV0fAA8othN4f3zhR2B6xN0WzsTRpyEZJl2vPDonhVY38iUhJGe8Ot9URs3IjYk4HoH9LG41az7l0blTBNNnpJuyI-xl5CDJGoPLGk5jw4tLvtvsCYhq3n7XuiZwJIaBMWjHSDdy7-fB1NYszI0G4f9JRjZ5UdDM4at3o3tAhd-CYK2Af1dnG#c3679507832415682306

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  • How to determine which class has called a function

    - by dannyc
    Hi, I am working on a Flex Front End at the moment, and have been using the Parsley framework for passing messages/events around. I was wondering if there is a simple way for a function (in this case, an event's constructor) to obtain a reference to the object which called it? This is to ensure that a certain event that I am defining can only be dispatched by one specified class. My thinking is to check the caller of the constructor somehow, and throw an error if it is not of the correct type. I am open to suggestions of alternative approaches here, but I would ideally like to stick to using the Parsley 'MessageHandler' approach if at all possible. Thanks for reading guys..

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  • Best Project Template to use for Classic Web Service

    - by coffeeaddict
    I'm going to create a new PayPal project. Should I just create a regular Class Library project then add the reference to the WSDL? We are not using WCF. I just want to know what the best project type / template I should use if I'm going to share this project with lets say another WAP web project. I simply want to create wrappers for some of the WSDL that we'll be using in part of the PayPal API.

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  • How would I set up this enum to return the image I want?

    - by Justen
    I'm trying to set up this enum so that it has the ability to return the correct image, though I'm struggling with a way to incorporate the context since it is in a separate class. public enum CubeType { GREEN { public Drawable getImage() { return Context.getResources().getDrawable( R.drawable.cube_green ); } }; abstract public Drawable getImage(); } The error I'm getting is: Cannot make a static reference to the non-static method getResources() from the type Context

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  • Parsing a DateTime containing milliseconds fails for certain cultures. Why?

    - by dradovic
    I'm trying to parse a string containing milliseconds like this: string s = "11.05.2010 15:03:08.7718687"; // culture: de-CH DateTime d = DateTime.Parse(s); // works However, for example under the de-DE locale, the decimal separator is a comma (not a dot). So the example becomes: string s = "11.05.2010 15:03:08,7718687"; // culture: de-DE (note the comma) DateTime d = DateTime.Parse(s); // throws a FormatException It is weird to me that DateTime.Parse(s) should throw a FormatException now as it is supposed to use the CultureInfo.CurrentCulture to do the parsing. Even passing the CurrentCulture as an argument explicitly does not help neither. Does anybody have an idea why this does not work? Doesn't parsing take the NumberFormatInfo.NumberDecimalSeparator into account?

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  • Is it possible to return as SiteMap as a JsonResult?

    - by Paul Suart
    I've got a very simple Action on my Controller that's attempting to return my XmlSiteMap as a JsonResult: public ActionResult Index() { var nodes = SiteMap.Provider.RootNode; return new JsonResult() { Data = nodes, JsonRequestBehavior = JsonRequestBehavior.AllowGet }; } However, when I call the Action, an InvalidOperationException is thrown: "A circular reference was detected while serializing an object of type 'System.Web.SiteMapNode'." Is there a way to Json serialize a SiteMap, or indeed any object that has children of the same type?

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  • Where is the JTree definition for eclipse's Project Explorer?

    - by Jim
    Hello, The JTree implementation / Renderer used in eclipse (see the navigation pane on the left side) is extremely good. I've checked out the eclipse source code and am looking through it, but can't seem to find the reference to the JTree used. Does anyone know which package contains the definition of this pane? Thanks!

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