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  • XCode 3.2.1 and Instruments: Useless Stack Trace

    - by Jason George
    I've reached the stage where it's time to start tracking down memory leaks and, to my dismay, Instruments is giving me very little to go on (other than the fact that I definitely have leaks). My stack trace contains no information other than memory addresses. Since I'm working on a new project and I've transitioned to version 3.2.1 of XCode in tandem, I'm not sure if it's my program configuration or XCode that's causing the problem. I have found one reference to the issue coupled with a post on the dyld leak that seems to be prevalent with the 3.2.1 release. Since I haven't been able to find much on the problem I'm guessing it's something I've created rather than a systematic issue with XCode. If someone has any idea where I might have thrown a wrench in the works, I would love some pointers. Also, if someone could just verify that the stack trace is indeed functioning properly in 3.2.1 that would be useful as well.

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  • System.Net.WebProxy in .NET Client

    - by NealWalters
    I don't yet have a good understanding of how the network is set up at my current client, but here is my issue. The vendor has a normal URL, but it might be a leased line. I have a .NET program that calls an external .asmx service. If I go to IE, Connections, LAN Settings, and uncheck "Automatic detect settings" and uncheck "Use Automatic Configuration Sript", then the .NET program runs and access the web service fine. But then, to access internet again from the browser, I have to re-check the two boxes, and so on throughout the day while we are testing and browsing. I'm hoping to put some code like this in the .NET program to avoid us having to constantly change: if (chkUseProxy.Checked) { myclient.Proxy = new System.Net.WebProxy(""); } I tried null and empty string and so far not able to connect without errors. Is this possible, and if so, what might be the correct parms for the constructor? Or are there other objects or properties that would need to be set? Thanks, Neal Walters

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  • EJB3 with Spring

    - by fish
    I have understood that if I use EJB in Spring context, I get all the same benefits as if I was using it in "pure" EJB3 environment, is this true? I have googled but can't find a definitive, clear answer. For example, let's say I have a session bean that updates some tables in the database and it throws a System Exception. In "pure" EJB3 environment the transaction is rolled back. What if I for example @Autowire this bean using Spring, does Spring take care of the transaction handling same way as does the EJB3 container? Or what? Does it maybe require some specific configuration or is it fully "automatic"?

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  • Launching MapActivity from another activity

    - by DixieFlatline
    Hello! I have 1 activity and 1 class that extends MapActivity(Lokacija). I added MapActivity to manifest, this line and my build configuration is set to Google API. I want to launch the mapactivity with the press of a button as usually: final Intent i = new Intent(); intent.setClass(getApplicationContext(), Lokacija.class); startactivity(i);ode here When i click on a button, I get android runtime exception (no activity found to handle intent). I has to be something with class extending MapActivity, but i don't know what. Any suggestions?

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  • Visual Studio C++ multi-project solution

    - by Lucas
    I have created an C++ solution in VS2008. The first project contains the model. The second projects is the view. The problem is that i don't get make references to my model classes defined in the first project. The message error is : Error 1 fatal error C1083: Cannot open include file: 'utils/GeradorSistematicoDeAlturaDoPlanoDeCorteStrategy.h': No such file or directory c:\Users\user\Programação em C++\Simulacao\Simulacao_Testes\src\Teste1.cpp 3 Simulacao_Testes Is there any configuration in VS2008 that makes to be made in order to, from the my view (second project) project, i do make references to the first project, the model?

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  • Server Development Tool?

    - by aloneguid
    Hi, For my programming tasks I use about 2-3 remote servers to deploy and run my code against different conditions. This cannot be emulated locally as the server configuration requires powerful hardware. Most of time I need to stop service, update binareis, start service, view logs in realtime, download logs. Currently I'm doing this manually and over time this becomes a real pain in the ass, especially because the environment is not ideal in terms of network badwidth, reliability etc. I just wonder if someone from server programmers have the similar problems and how do you bear with them. Any special tools/hints/secrets?

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  • OpenLayers, Layers: Tiled vs. single tile

    - by Chau
    Each time we add a new layer to our OpenLayers based website (data provided primarily by a GeoServer server), we discuss whether to use a single-tile or a tiled approach. Some of the parameters we evaluate are the following: Using the tiled approach we get: Slow but continuous buildup of the viewport Lots of small images Client side caching possibilities Blocking of the loading pipeline (6 requests at a time) Jerky feeling when navigating during load Using the single-tile approach we get: Smoother feeling when navigating during load Time delay before layer is loaded One large image for each layer No caching of the single tile We have a lot of data editing in the layers, thus a tile-cache might not be that efficient. Are there any best-practices when it comes to tiling? Progressing towards infinitely fast hardware and unlimited data connections, the discussion becomes irrelevant, but what configuration do you percieve as the most user-pleasing?

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  • C# How to redirect assembly loading using application config file

    - by Adi barda
    Hi Guys, I have an assembly with few versions registered in the GAC. Now, I want one of my clients which uses this assembly (version 1.3) to point to the newest version (1.4) without opening the source and recompiling the client. I saw an article demonstrating a technique for doing so using the application config file (winform application) here is the config file content : <?xml version="1.0" encoding="utf-8" ?> <configuration xmlns:asm="urn:schemas-microsoft-com:asm.v1"> <runtime> <asm:assemblyBinding> as you can see, there is a binding redirect from version 1.3.0.0 to 1.4.0.0 for assembly named MyFacade. Now, there's only a Minor issue with this approach. It doesn't work :) I'm sure it's something with my code. Any suggestions? Thanks, Adi Barda

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  • ASP.NET MVC2 custom rolemanager (webconfig problem)

    - by ile
    Structure of the web: SAMembershipProvider.cs namespace User.Membership { public class SAMembershipProvider : MembershipProvider { #region - Properties - private int NewPasswordLength { get; set; } private string ConnectionString { get; set; } //private MachineKeySection MachineKey { get; set; } //Used when determining encryption key values. public bool enablePasswordReset { get; set; } public bool enablePasswordRetrieval { get; set; } public bool requiresQuestionAndAnswer { get; set; } public bool requiresUniqueEmail { get; set; } public int maxInvalidPasswordAttempts { get; set; } public int passwordAttemptWindow { get; set; } public MembershipPasswordFormat passwordFormat { get; set; } public int minRequiredNonAlphanumericCharacters { get; set; } public int minRequiredPasswordLength { get; set; } public string passwordStrengthRegularExpression { get; set; } public override string ApplicationName { get; set; } // Indicates whether passwords can be retrieved using the provider's GetPassword method. // This property is read-only. public override bool EnablePasswordRetrieval { get { return enablePasswordRetrieval; } } // Indicates whether passwords can be reset using the provider's ResetPassword method. // This property is read-only. public override bool EnablePasswordReset { get { return enablePasswordReset; } } // Indicates whether a password answer must be supplied when calling the provider's GetPassword and ResetPassword methods. // This property is read-only. public override bool RequiresQuestionAndAnswer { get { return requiresQuestionAndAnswer; } } public override int MaxInvalidPasswordAttempts { get { return maxInvalidPasswordAttempts; } } // For a description, see MaxInvalidPasswordAttempts. // This property is read-only. public override int PasswordAttemptWindow { get { return passwordAttemptWindow; } } // Indicates whether each registered user must have a unique e-mail address. // This property is read-only. public override bool RequiresUniqueEmail { get { return requiresUniqueEmail; } } public override MembershipPasswordFormat PasswordFormat { get { return passwordFormat; } } // The minimum number of characters required in a password. // This property is read-only. public override int MinRequiredPasswordLength { get { return minRequiredPasswordLength; } } // The minimum number of non-alphanumeric characters required in a password. // This property is read-only. public override int MinRequiredNonAlphanumericCharacters { get { return minRequiredNonAlphanumericCharacters; } } // A regular expression specifying a pattern to which passwords must conform. // This property is read-only. public override string PasswordStrengthRegularExpression { get { return passwordStrengthRegularExpression; } } #endregion #region - Methods - public override void Initialize(string name, NameValueCollection config) { throw new NotImplementedException(); } public override bool ChangePassword(string username, string oldPassword, string newPassword) { throw new NotImplementedException(); } public override bool ChangePasswordQuestionAndAnswer(string username, string password, string newPasswordQuestion, string newPasswordAnswer) { throw new NotImplementedException(); } // Takes, as input, a user name, password, e-mail address, and other information and adds a new user // to the membership data source. CreateUser returns a MembershipUser object representing the newly // created user. It also accepts an out parameter (in Visual Basic, ByRef) that returns a // MembershipCreateStatus value indicating whether the user was successfully created or, if the user // was not created, the reason why. If the user was not created, CreateUser returns null. // Before creating a new user, CreateUser calls the provider's virtual OnValidatingPassword method to // validate the supplied password. It then creates the user or cancels the action based on the outcome of the call. public override MembershipUser CreateUser(string username, string password, string email, string passwordQuestion, string passwordAnswer, bool isApproved, object providerUserKey, out MembershipCreateStatus status) { throw new NotImplementedException(); } public override bool DeleteUser(string username, bool deleteAllRelatedData) { throw new NotImplementedException(); } public override MembershipUserCollection FindUsersByEmail(string emailToMatch, int pageIndex, int pageSize, out int totalRecords) { throw new NotImplementedException(); } // Returns a MembershipUserCollection containing MembershipUser objects representing users whose user names // match the usernameToMatch input parameter. Wildcard syntax is data source-dependent. MembershipUser objects // in the MembershipUserCollection are sorted by user name. If FindUsersByName finds no matching users, it // returns an empty MembershipUserCollection. // For an explanation of the pageIndex, pageSize, and totalRecords parameters, see the GetAllUsers method. public override MembershipUserCollection FindUsersByName(string usernameToMatch, int pageIndex, int pageSize, out int totalRecords) { throw new NotImplementedException(); } // Returns a MembershipUserCollection containing MembershipUser objects representing all registered users. If // there are no registered users, GetAllUsers returns an empty MembershipUserCollection // The results returned by GetAllUsers are constrained by the pageIndex and pageSize input parameters. pageSize // specifies the maximum number of MembershipUser objects to return. pageIndex identifies which page of results // to return. Page indexes are 0-based. // // GetAllUsers also takes an out parameter (in Visual Basic, ByRef) named totalRecords that, on return, holds // a count of all registered users. public override MembershipUserCollection GetAllUsers(int pageIndex, int pageSize, out int totalRecords) { throw new NotImplementedException(); } // Returns a count of users that are currently online-that is, whose LastActivityDate is greater than the current // date and time minus the value of the membership service's UserIsOnlineTimeWindow property, which can be read // from Membership.UserIsOnlineTimeWindow. UserIsOnlineTimeWindow specifies a time in minutes and is set using // the <membership> element's userIsOnlineTimeWindow attribute. public override int GetNumberOfUsersOnline() { throw new NotImplementedException(); } // Takes, as input, a user name and a password answer and returns that user's password. If the user name is not // valid, GetPassword throws a ProviderException. // Before retrieving a password, GetPassword verifies that EnablePasswordRetrieval is true. If // EnablePasswordRetrieval is false, GetPassword throws a NotSupportedException. If EnablePasswordRetrieval is // true but the password format is hashed, GetPassword throws a ProviderException since hashed passwords cannot, // by definition, be retrieved. A membership provider should also throw a ProviderException from Initialize if // EnablePasswordRetrieval is true but the password format is hashed. // // GetPassword also checks the value of the RequiresQuestionAndAnswer property before retrieving a password. If // RequiresQuestionAndAnswer is true, GetPassword compares the supplied password answer to the stored password // answer and throws a MembershipPasswordException if the two don't match. GetPassword also throws a // MembershipPasswordException if the user whose password is being retrieved is currently locked out. public override string GetPassword(string username, string answer) { throw new NotImplementedException(); } // Takes, as input, a user name or user ID (the method is overloaded) and a Boolean value indicating whether // to update the user's LastActivityDate to show that the user is currently online. GetUser returns a MembershipUser // object representing the specified user. If the user name or user ID is invalid (that is, if it doesn't represent // a registered user) GetUser returns null (Nothing in Visual Basic). public override MembershipUser GetUser(object providerUserKey, bool userIsOnline) { throw new NotImplementedException(); } // Takes, as input, a user name or user ID (the method is overloaded) and a Boolean value indicating whether to // update the user's LastActivityDate to show that the user is currently online. GetUser returns a MembershipUser // object representing the specified user. If the user name or user ID is invalid (that is, if it doesn't represent // a registered user) GetUser returns null (Nothing in Visual Basic). public override MembershipUser GetUser(string username, bool userIsOnline) { throw new NotImplementedException(); } // Takes, as input, an e-mail address and returns the first registered user name whose e-mail address matches the // one supplied. // If it doesn't find a user with a matching e-mail address, GetUserNameByEmail returns an empty string. public override string GetUserNameByEmail(string email) { throw new NotImplementedException(); } // Virtual method called when a password is created. The default implementation in MembershipProvider fires a // ValidatingPassword event, so be sure to call the base class's OnValidatingPassword method if you override // this method. The ValidatingPassword event allows applications to apply additional tests to passwords by // registering event handlers. // A custom provider's CreateUser, ChangePassword, and ResetPassword methods (in short, all methods that record // new passwords) should call this method. protected override void OnValidatingPassword(ValidatePasswordEventArgs e) { base.OnValidatingPassword(e); } // Takes, as input, a user name and a password answer and replaces the user's current password with a new, random // password. ResetPassword then returns the new password. A convenient mechanism for generating a random password // is the Membership.GeneratePassword method. // If the user name is not valid, ResetPassword throws a ProviderException. ResetPassword also checks the value of // the RequiresQuestionAndAnswer property before resetting a password. If RequiresQuestionAndAnswer is true, // ResetPassword compares the supplied password answer to the stored password answer and throws a // MembershipPasswordException if the two don't match. // // Before resetting a password, ResetPassword verifies that EnablePasswordReset is true. If EnablePasswordReset is // false, ResetPassword throws a NotSupportedException. If the user whose password is being changed is currently // locked out, ResetPassword throws a MembershipPasswordException. // // Before resetting a password, ResetPassword calls the provider's virtual OnValidatingPassword method to validate // the new password. It then resets the password or cancels the action based on the outcome of the call. If the new // password is invalid, ResetPassword throws a ProviderException. // // Following a successful password reset, ResetPassword updates the user's LastPasswordChangedDate. public override string ResetPassword(string username, string answer) { throw new NotImplementedException(); } // Unlocks (that is, restores login privileges for) the specified user. UnlockUser returns true if the user is // successfully unlocked. Otherwise, it returns false. If the user is already unlocked, UnlockUser simply returns true. public override bool UnlockUser(string userName) { throw new NotImplementedException(); } // Takes, as input, a MembershipUser object representing a registered user and updates the information stored for // that user in the membership data source. If any of the input submitted in the MembershipUser object is not valid, // UpdateUser throws a ProviderException. // Note that UpdateUser is not obligated to allow all the data that can be encapsulated in a MembershipUser object to // be updated in the data source. public override void UpdateUser(MembershipUser user) { throw new NotImplementedException(); } // Takes, as input, a user name and a password and verifies that they are valid-that is, that the membership data // source contains a matching user name and password. ValidateUser returns true if the user name and password are // valid, if the user is approved (that is, if MembershipUser.IsApproved is true), and if the user isn't currently // locked out. Otherwise, it returns false. // Following a successful validation, ValidateUser updates the user's LastLoginDate and fires an // AuditMembershipAuthenticationSuccess Web event. Following a failed validation, it fires an // // AuditMembershipAuthenticationFailure Web event. public override bool ValidateUser(string username, string password) { throw new NotImplementedException(); //if (string.IsNullOrEmpty(password.Trim())) return false; //string hash = EncryptPassword(password); //User user = _repository.GetByUserName(username); //if (user == null) return false; //if (user.Password == hash) //{ // User = user; // return true; //} //return false; } #endregion /// <summary> /// Procuses an MD5 hash string of the password /// </summary> /// <param name="password">password to hash</param> /// <returns>MD5 Hash string</returns> protected string EncryptPassword(string password) { //we use codepage 1252 because that is what sql server uses byte[] pwdBytes = Encoding.GetEncoding(1252).GetBytes(password); byte[] hashBytes = System.Security.Cryptography.MD5.Create().ComputeHash(pwdBytes); return Encoding.GetEncoding(1252).GetString(hashBytes); } } // End Class } SARoleProvider.cs namespace User.Membership { public class SARoleProvider : RoleProvider { #region - Properties - // The name of the application using the role provider. ApplicationName is used to scope // role data so that applications can choose whether to share role data with other applications. // This property can be read and written. public override string ApplicationName { get; set; } #endregion #region - Methods - public override void Initialize(string name, NameValueCollection config) { throw new NotImplementedException(); } // Takes, as input, a list of user names and a list of role names and adds the specified users to // the specified roles. // AddUsersToRoles throws a ProviderException if any of the user names or role names do not exist. // If any user name or role name is null (Nothing in Visual Basic), AddUsersToRoles throws an // ArgumentNullException. If any user name or role name is an empty string, AddUsersToRoles throws // an ArgumentException. public override void AddUsersToRoles(string[] usernames, string[] roleNames) { throw new NotImplementedException(); } // Takes, as input, a role name and creates the specified role. // CreateRole throws a ProviderException if the role already exists, the role name contains a comma, // or the role name exceeds the maximum length allowed by the data source. public override void CreateRole(string roleName) { throw new NotImplementedException(); } // Takes, as input, a role name and a Boolean value that indicates whether to throw an exception if there // are users currently associated with the role, and then deletes the specified role. // If the throwOnPopulatedRole input parameter is true and the specified role has one or more members, // DeleteRole throws a ProviderException and does not delete the role. If throwOnPopulatedRole is false, // DeleteRole deletes the role whether it is empty or not. // // When DeleteRole deletes a role and there are users assigned to that role, it also removes users from the role. public override bool DeleteRole(string roleName, bool throwOnPopulatedRole) { throw new NotImplementedException(); } // Takes, as input, a search pattern and a role name and returns a list of users belonging to the specified role // whose user names match the pattern. Wildcard syntax is data-source-dependent and may vary from provider to // provider. User names are returned in alphabetical order. // If the search finds no matches, FindUsersInRole returns an empty string array (a string array with no elements). // If the role does not exist, FindUsersInRole throws a ProviderException. public override string[] FindUsersInRole(string roleName, string usernameToMatch) { throw new NotImplementedException(); } // Returns the names of all existing roles. If no roles exist, GetAllRoles returns an empty string array (a string // array with no elements). public override string[] GetAllRoles() { throw new NotImplementedException(); } // Takes, as input, a user name and returns the names of the roles to which the user belongs. // If the user is not assigned to any roles, GetRolesForUser returns an empty string array // (a string array with no elements). If the user name does not exist, GetRolesForUser throws a // ProviderException. public override string[] GetRolesForUser(string username) { throw new NotImplementedException(); //User user = _repository.GetByUserName(username); //string[] roles = new string[user.Role.Rights.Count + 1]; //roles[0] = user.Role.Description; //int idx = 0; //foreach (Right right in user.Role.Rights) // roles[++idx] = right.Description; //return roles; } public override string[] GetUsersInRole(string roleName) { throw new NotImplementedException(); } // Takes, as input, a role name and returns the names of all users assigned to that role. // If no users are associated with the specified role, GetUserInRole returns an empty string array (a string array with // no elements). If the role does not exist, GetUsersInRole throws a ProviderException. public override bool IsUserInRole(string username, string roleName) { throw new NotImplementedException(); //User user = _repository.GetByUserName(username); //if (user != null) // return user.IsInRole(roleName); //else // return false; } // Takes, as input, a list of user names and a list of role names and removes the specified users from the specified roles. // RemoveUsersFromRoles throws a ProviderException if any of the users or roles do not exist, or if any user specified // in the call does not belong to the role from which he or she is being removed. public override void RemoveUsersFromRoles(string[] usernames, string[] roleNames) { throw new NotImplementedException(); } // Takes, as input, a role name and determines whether the role exists. public override bool RoleExists(string roleName) { throw new NotImplementedException(); } #endregion } // End Class } From Web.config: <membership defaultProvider="SAMembershipProvider" userIsOnlineTimeWindow="15"> <providers> <clear/> <add name="SAMembershipProvider" type="User.Membership.SAMembershipProvider, User" /> </providers> </membership> <roleManager defaultProvider="SARoleProvider" enabled="true" cacheRolesInCookie="true"> <providers> <clear/> <add name="SARoleProvider" type="User.Membership.SARoleProvider" /> </providers> </roleManager> When running project, I get following error: Server Error in '/' Application. Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. Parser Error Message: The method or operation is not implemented. Source Error: Line 71: <providers> Line 72: <clear/> Line 73: <add name="SARoleProvider" type="User.Membership.SARoleProvider" /> Line 74: </providers> Line 75: </roleManager> I tried: <add name="SARoleProvider" type="User.Membership.SARoleProvider, User" /> and <add name="SARoleProvider" type="User.Membership.SARoleProvider, SARoleProvider" /> and <add name="SARoleProvider" type="User.Membership.SARoleProvider, User.Membership" /> but none works Any idea what's wrong here? Thanks, Ile

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  • Defining a SPI in Clojure

    - by Joe Holloway
    I'm looking for an idiomatic way(s) to define an interface in Clojure that can be implemented by an external "service provider". My application would locate and instantiate the service provider module at runtime and delegate certain responsibilities to it. Let's say, for example, that I'm implementing a RPC mechanism and I want to allow a custom middleware to be injected at configuration time. This middleware could pre-process the message, discard messages, wrap the message handler with logging, etc. I know several ways to do this if I fall back to Java reflection, but feel that implementing it in Clojure would help my understanding. (Note, I'm using SPI in a general sense here, not specifically referring to the way it's defined in the JAR file specification) Thanks

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  • how to obtain a stack trace when WAMP server crashes ?

    - by mithunmo
    Hello, Some times my WAMP server crashes . I get the following error. HTTP has encountered exception and needs to close. Unreferenced Memory. szAppName : httpd.exe szAppVer : 2.2.11.0 szModName : php5ts.dll szModVer : 5.3.0.0 offset : 0000c309 C:\DOCUME~1\blrcom\LOCALS~1\Temp\WERc677.dir00\httpd.exe.mdmp C:\DOCUME~1\blrcom\LOCALS~1\Temp\WERc677.dir00\appcompat.txt My question is how to obtain stack trace to debug this problem ? Should I use a windows debugger windows debugger or is there some setting in WAMP server configuration should i enable ?

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  • Asp.Net application/web service not working on Vista/IIS7: access right problem?

    - by Achim
    I have an .Net 3.5 based web service running at http://localhost/serivce.svc/. Then I have a Asp.Net application running at http://localhost/myApp. In Application_Load my App reads some XML configuration from the web service. That works fine on my machine, but: On Vista with IIS7 the request to the web services fails. The web service can be accessed via the browser without any problem. I configured the app pool of my App to run as admin. I added the admin to the IIS_USRS group, but it still cannot access the web service. impersonate=true/false seems not to make a difference.

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  • The handle is invalid when loading file or assembly AjaxControlToolkit

    - by Dharmik Bhandari
    I'm having one error repeatedly. The site is on ASP.NET 2.0 web form. There is no pattern to reproduce this error again because it occurs sometimes and it resolve by adding blank space at end of the in web.config. What could be the problem? Server Error in '/' Application. The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE)) Exception Details: System.Runtime.InteropServices.COMException: The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE)) [COMException (0x80070006): The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE))] [FileLoadException: Could not load file or assembly 'AjaxControlToolkit, Version=3.0.30930.28736, Culture=neutral, PublicKeyToken=28f01b0e84b6d53e' or one of its dependencies. The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE))] [ConfigurationErrorsException: Could not load file or assembly 'AjaxControlToolkit, Version=3.0.30930.28736, Culture=neutral, PublicKeyToken=28f01b0e84b6d53e' or one of its dependencies. The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE))] System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +613

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  • CodePlex Daily Summary for Wednesday, November 30, 2011

    CodePlex Daily Summary for Wednesday, November 30, 2011Popular ReleasesLINQ to Twitter: LINQ to Twitter Beta v2.0.22: New support for Windows Phone 7.1, 100% Twitter API coverage.Anno 2070 Assistant: Anno 2070 Assistant v1.1: Anno 2070 Assistant v1.1 Released! Features Included: Building Layouts for Ecos, Tycoons & Techs Production Chains for Ecos, Tycoons & Techs Supply Calculator New Features: The new supply calculator will tell you how many of each production chain you need to sustain the current population. Simply plot in your total inhabitants of each type and calculate! Coming in v2.0: Population Calculator Port from hard coded data to XML data Calculate by Residence Feature and some more secret ...Rawr: Rawr 4.3.0: This is the Downloadable WPF version of Rawr!For web-based version see http://elitistjerks.com/rawr.php You can find the version notes at: http://rawr.codeplex.com/wikipage?title=VersionNotes Rawr AddonWe now have a Rawr Official Addon for in-game exporting and importing of character data hosted on Curse. The Addon does not perform calculations like Rawr, it simply shows your exported Rawr data in wow tooltips and lets you export your character to Rawr (including bag and bank items) like Char...BugNET Issue Tracker: BugNET 0.9.131: This is a bug fix release for 0.9 that fixes a number of pressing issues. FixesBGN-1989 - User verification is not working on the latest release BGN-1988 - Send password notification does not include the actual password and throws an error BGN-1987 - Issues revisions stop being updated BGN-1985 - Search by issue id no longer works Fixed issue when user is not authenticated and clicks on the Vote link the user is redirected to page not found (wrong location for the Login.aspx page) N...QuickStart Engine (3D Game Engine for XNA): QuickStart Engine v0.23: Main FeaturesXNA 4.0 compatible Clean engine architecture Makes it easy to make your own game using the engine. Messaging system allows you to communicate between systems and other entities without coupling your code in ways you wouldn't want to. Entity/Component system allows you to make your own objects and customize them very easily. Terrain engine Quad-tree culling Multi-texture splatting Multi-texture normal mapping Smoothing and scaling Physics engine integration Uses Ji...Windows Azure Toolkit for Windows Phone: Windows Azure Toolkit for Windows Phone v1.3.2: Upgraded Windows Azure projects to Windows Azure SDK for .NET – November 2011. Updated BabelCam, CRUDSqlAzure, WPCloud.ACS, and WPCloud.SQL.ACS samples to include default ACS configuration to allow developers running the samples without owning an ACS namespace.VideoLan DotNet for WinForm, WPF & Silverlight 5: VideoLan DotNet for WinForm, WPF, SL5 - 2011.11.29: The new version add and correct many features : Add Medias list property to VlcControl Correction to implement Medias list property Add PlaybackMode property to VlcControl (Loop/Repeat/Default) Remove "--play-and-pause" option in WPF sample Add MediaList Interops Add MediaListPlayer Interops Correction on Interops (error) Add MediaSubItemAdded event on MediaBaseMFCMAPI: November 2011 Release: Build: 15.0.0.1029 Full release notes at SGriffin's blog. If you just want to run the MFCMAPI or MrMAPI, get the executables. If you want to debug them, get the symbol files and the source. The 64 bit builds will only work on a machine with Outlook 2010 64 bit installed. All other machines should use the 32 bit builds, regardless of the operating system. Facebook BadgeWCF Community Site: WCF Web API Preview 6: Welcome to the sixth preview release of WCF Web API on Codeplex! Install WCF Web API Preview 6 using NuGet New Features/EnhancementsURL form encoding - Http request bodies sent as application/x-www-form-urlencoded can now deserialize into objects and participate in content negotiation. Custom OData entity keys - The ODataFormatter now supports custom conventions for determining which properties identify an entity key. [ServiceContract] is no longer required on the Web API class definiti...Devpad: 4.11: Whats new for Devpad 4.11: New Import Archive Improved Save Dialog Improved Replace Dialog Improved Go To Dialog Minor Bug Fix's, improvements and speed upsHome Access Plus+: v7.7: v7.7.1128.2200Added: ShowTo Option on Resources Added: Basic Authentication Logon Method Added: Button on the Live Tracker page to clear logons in the database but not do a remote logoff Updated: jquery from v1.6.2 to v1.7.1 Fixed: Another attempt at fixing the SIMS import in the booking system Fixed: JSON Issues with the Setup Added: More DEBUG Events to the Event Log (note DEBUG not RELEASE) Added: Support for Week A Week B instead of Week 1 and Week 2 Updated: The My Files ...CommonLibrary.NET: CommonLibrary.NET 0.9.8 - Alpha: A collection of very reusable code and components in C# 4.0 ranging from ActiveRecord, Csv, Command Line Parsing, Configuration, Holiday Calendars, Logging, Authentication, and much more. Samples in <root>\src\Lib\CommonLibrary.NET\Samples CommonLibrary.NET 0.9.8 AlphaNew Dynamic Scripting Language : workitem : 7493 Fixes 1622 6803Widget Suite for DotNetNuke: 01.04.00: The following features/enhancements are associated with this release: Bug: Removed the empty box/white space created by some widgets New Widget: FlexSlider New Widget: Google+ Button New Widget: Klout Badge Sample Widget Script FileFxCop Integrator for Visual Studio 2010: FxCop Integrator 2.0.0 RC: Replaced the MSBuild Tasks installer to fix the bug of the targets file. FxCop Integrator is not affected by this bug. (Nov 28 2011) New FeatureSupported calculating code metrics with Code Metrics PowerTool. (Work Item #6568: 6568). Provided MSBuild tasks. #7454: 7454 Supported to filter out auto-generated code from code analysis result. #7485: 7485 Supported exporting report of code analysis result. Supported multi-project analysis. Supported file level analysis. Added the featu...Terminals: Version 2 - Beta 4 Release: Beta 4 Refresh Build Dont forget to backup your config files BEFORE upgrading! As usual, please take time to use and abuse this release. We left logging in place, and this is a debug build so be sure to submit your logs on each bug reported, and please do report all bugs! Updated the About form to include the date and time of the build. Useful for CI builds to ensure we have the correct version "Favourites" and "History" save their expanded states after app restarts Code cleanup, secu...MiniTwitter: 1.76: MiniTwitter 1.76 ???? ?? ?????????? User Streams ???????????? User Streams ???????????、??????????????? REST ?????????? ?????????????????????????????? ??????????????????????????????Media Companion: MC 3.424b Weekly: Ensure .NET 4.0 Full Framework is installed. (Available from http://www.microsoft.com/download/en/details.aspx?id=17718) Ensure the NFO ID fix is applied when transitioning from versions prior to 3.416b. (Details here) Movie Show Resolutions... Resolved issue when reverting multiselection of movies to "-none-" Added movie rename support for subtitle files '.srt' & '.sub' Finalised code for '-1' fix - radiobutton to choose either filename or title Fixed issue with Movie Batch Wizard Fanart - ...Advanced Windows Phone Enginering Tool: WPE Downloads: This version of WPE gives you basic updating, restoring, and, erasing for your Windows Phone device.Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.37: Fix for issue #16936 - CSS strings containing ASP.NET replacement blocks that contain the same delimiter character(s) as the CSS string cause the CSS parser to barf. Need to use the -aspnet:1 flag to treat the ASP.NET blocks as single entities. Added support for CSS3 @keyframes syntax. Added NuGet package support to the DLL project. Expand the -line switch to also optionally specify the multiline/single line mode, and the spaces-per-tab for multiline mode. Tweak the -pretty switch to be more ...Get simpler, simpler, and simpler: UI 0.1 Binary: Inklude: you can use it with lib, header and dlls. Uzing: you can use it by adding it to your project.New ProjectsArchiveBytes: ArchiveBytes is an archiving solution with rolling archive capabilities. Arduino Controller: Arduino Controller is a GUI to control and arduino wirelessly using: - XBEES - WIFI - Bluetooth All that is required is: - Arduino Controller - Your wireless technology - And an Arduino If you would like info I'm trying to put together sets that include: - Software - Arduino - And a wireless technology (your choice)Artesis - Studiegids MVC: Artesis StudiegidsAzureHost: AzureHost is a synchronization framework that makes it easy to deploy web application files to Windows Azure and keep them synchronized between Web Roles and Blob Storage. AzureHost is a fork of the Windows Azure Accelerator for Umbraco made more simple and generic.Codes Of My ACE Study: Activity-based Center ExpansionCoreGallery.NET: An extensible .NET-based photo gallery. Project has been inactive for some time and currently in very early planning/prototyping stages. Help is definitely welcome!Custom SharePoint Designer Activities for SharePoint 2010: This project adds to the power of SharePoint Designer workflows by adding additional activities that previously were not available including sending emails with attachments, custom from addresses, and much more. Created with visual studio 2010 for SharePoint 2010.Declarative command line parser: A powerful, declarative command-line parsing system in a single .cs file. This file is available as a nuget package (package id: declcmdparser) and can be easily included or excluded in your project.DevCow: This is a location for all of the community projects that help support DevCow.comejg: ejgFibo.Authority: a authority system based on nhibernate,autofac,asp.net MVC,jquery easyui and so on.Georgia Southern House Control: This is a semester project for a group of students at Georgia Southern university.JSAnalyse - Javascript Analyser and Dependency Checker: JSAnalyse - Javascript Analyser and Dependency CheckerLogger - logging for your .NET project using file, mail, debug output: A light weight yet competent logger for .NET with configurable output modules, such as log file, e-mail and debug log. Easy to add your own output module if needed.MetaEdit+ extension for Visual Studio: Visual Studio extension for integrating MetaEdit+ and Visual Studio. This extension allows you to browse MetaEdit+ models and use the main MetaEdit+ functions from Visual Studio. It can also automatically import into Visual Studio the source code generated from MetaEdit+. MonopolyPatrones: Proyecto de patrones de software universidad Javeriana ColombiaMulti-threaded simple Reversi game: XNA Reversi game supporting multi-core processors. NDuplicate: Finds duplicate code (methods) across a C# solution.Netduino-compatible embedded webserver: Embedded Webserver is a small footprint, multi-platform webserver implementation exposing IIS-like API to web enable your hobby project in four easy steps.Orchard UserReviewedItems: An Orchard module extension of the Contrib.Reviews module. Includes a orchard content part for showing the reviews that are written by the user of the current context.PivotViewer Extensions: PivotViewer Extensions is a collection of add-ons to the Silverlight 5 PivotViewer. PowerShell TFS Build Server CmdLets: A set of CmdLets for managing a Team Foundation Server (TFS) Build server through PowerShell. SABON: Simple Access Business Object Network. This is a JavaScript Library that provides quickest way on accessing HTML elements, and DOM this includes Object/Class Creator, Table Effects, Message Box, Object Pop-up, Email Notification, and caseed: Seed creates complete ASP.NET website from object oriented business model definitions. Programers serves programs? No... Programs serves programers, Yep! "Firstly, I think I will build a system with 90% solid functions, and 10% dynamiic functions, the dynamic functions is the flower blossoming from top of it."Sharpshooter: ????OOP??????,??????。Silverlight Front end calling WCF Service in Azure Web Role: I recently written a sample which has Windows Azure Web Role with Silverlight front end, calling to WCF service which is hosted in the same Windows Azure Web Role. SPWikiDialogFix: For SharePoint 2010: Fix to prevent users from receiving ‘The Ribbon Tab with id: "Ribbon.Read" has not been made available for this page or does not exist. Use Ribbon.MakeTabAvailable()’ when viewing wiki pages in dialog mode. For explanation and details, read the blog post at http://blog.furuknap.net/solving-the-ribbon-tab-with-id-ribbon-read-has-not-been-made-available-for-this-page-or-does-not-exist-use-ribbon-maketabavailable Written in C#, because you deserve it.Trinity Christian School Lunches: This is a semester project for a group of students at Georgia Southern University creating a software packages that allows a school to keep track of the lunch orders of students.wp7project: We`re just training...Zavida: C# learning curve.??: fff

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  • URL redirect/remapping to a Django app, using DNS or Apache

    - by Art
    Typically I've been lucky enough to have a fairly simple Django and Apache configuration. But now I'm writing several apps that will sit on the same server and I need them to each have individual domains. The apps live at www.myserver.com/app/app1 (app2...) and I would like to access it using www.someawesomedomain.com. I don't want a redirect since I do not want to expose the underlying path. What is the best way to do this, in the context of 5 - 10 sites? I'm using Apache2.

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  • The host 'smtp' could not be found.

    - by SmartestVEGA
    I am getting the following error while sending mail by click of a button in MS access form I am using sendObject to send mail using vba code. The host 'smtp' could not be found. Please verify that you have entered the server name correctly. Account: 'pop3', Server: 'smtp', Protocol: SMTP, Port: 25, Secure(SSL): No, Socket Error: 11001, Error Number: 0x800CCC0D Points to note: I am able to send and receive mails in my outlook; Problem is only when send mails through VBA access application.(Means it is not a outlook client configuration problem) When i copy paste the Vba application to another PC, i could successfully send emails without any error. (means this is not a vba access application problem) Please help.

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  • Configuring Rolling File Appender

    - by Anand
    Hi, My jboss application server log file named jboss-log4j.xml has the following configuration for the rolling file appender <appender name="FILE" class="org.jboss.logging.appender.RollingFileAppender"> <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/> <param name="File" value="${jboss.server.log.dir}/server.log"/> <param name="Append" value="false"/> <param name="MaxFileSize" value="500KB"/> <param name="MaxBackupIndex" value="1"/> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/> </layout> </appender> What does this exactly do ? How should I set it to do either of the two things ? 1. Delete logs older than 5 days or 2. Delete logs when they exceed 800MB, so that once they are deleted the new logs can take effect

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  • Asp.Net 1 -> Asp.Net 2 upgrade - Machine.Config - unrecognized parameter

    - by Chris
    Hi All, I am working on upgrading a web app to asp.net 2 from 1. VS 2008 did its conversion things, and everything is building successfully and has been converted to a web application via the appropriate menu item in VS 2008. On launching the site using the Asp.net development server I am receiving a configuration error on the appsettings line in the machine config of Unrecognized attribute 'restartOnExternalChanges'. The app targets asp.net 2 in the projects properties in VS, and the error page indicates similar : Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053 The error message seems to indicate I am trying to run this in an asp.net 1 environment, but surely that isnt the case, and if so how do I rectify this. Any help would be appreciated Thanks,

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  • How to properly use .SWC packages in Flash CS 4

    - by DevEight
    Hi! I've googled a lot trying to find how to properly import and use .swc files in Flash CS 4, tried lots of different methods but none seem to work. What I've done is: 1. Placed it in my "D:\Program Files (x86)\Adobe\Adobe Flash CS4\en\Configuration\Components" folder. It does however not show up in the component inspector. 2. Added it in Publishing Settings as a Library and External Library, still can't seem to use it. I've also tried adding "import org.osflash.signals;" after each method but I receive the error "1172: Definition org.osflash:signals could not be found." So what I'm asking for is an easy way to get the .swc package working code-wise with all classes imported etc. The .swc file is as you may have guessed as3signals. Thanks in advance.

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  • Connecting to Python XML RPC from the Mac

    - by MAC
    Hi, I wrote an XML RPC server in python and a simple Test Client for it in python. The Server runs on a linux box. I tested it by running the python client on the same linux machine and it works. I then tried to run the python client on a Mac and i get the following error socket.error: (61, 'Connection Refused') I can ping and ssh into the linux machine from the Mac. So i dont think its a configuration or firewall error. Does anyone have any idea what could be going wrong? The code for the client is as below: import xmlrpclib s = xmlrpclib.ServerProxy('http://143.252.249.141:8000') print s.GetUsers() print s.system.listMethods()

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  • Decode html tag so that it can be read when it goes back to the server more specifically the controller

    - by Yusuf
    My engine is Aspx. How can I decode/encode the html tags that is in my text box. I have the html tag to make it more readable. I tried the ValidationRequest and the htmlDecode(freqQuestion.Answer) but no luck. I just keep getting the same message. Server Error in '/Administrator' Application. A potentially dangerous Request.Form value was detected from the client (QuestionAnswer="...ics Phone:123-456-7890 Description: Request Validation has detected a potentially dangerous client input value, and processing of the request has been aborted. This value may indicate an attempt to compromise the security of your application, such as a cross-site scripting attack. To allow pages to override application request validation settings, set the requestValidationMode attribute in the httpRuntime configuration section to requestValidationMode="2.0". Example: . After setting this value, you can then disable request validation by setting validateRequest="false" in the Page directive or in the configuration section. However, it is strongly recommended that your application explicitly check all inputs in this case. For more information, see http://go.microsoft.com/fwlink/?LinkId=153133. View Page <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" validateRequest="false" Inherits="System.Web.Mvc.ViewPage<dynamic>" %> <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> EditFreqQuestionsUser </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <script type="text/javascript"> $(document).ready(function () { $("#freqQuestionsUserUpdateButton").click(function () { $("#updateFreqQuestionsUser").submit(); }); }); </script> <h2>Edit Freq Questions User </h2> <%Administrator.DarkstarAdminProductionServices.FreqQuestionsUser freqQuestionsUser = ViewBag.freqQuestionsUser != null ? ViewBag.freqQuestionsUser : new Administrator.DarkstarAdminProductionServices.FreqQuestionsUser(); %> <%List<string> UserRoleList = Session["UserRoles"] != null ? (List<string>)Session["UserRoles"] : new List<string>(); %> <form id="updateFreqQuestionsUser" action="<%=Url.Action("SaveFreqQuestionsUser","Prod")%>" method="post"> <table> <tr> <td colspan="3" class="tableHeader">Freq Questions User Details <input type ="hidden" value="<%=freqQuestionsUser.freqQuestionsUserId%>" name="freqQuestionsUserId"/> </td> </tr> <tr> <td colspan="2" class="label">Question Description:</td> <td class="content"> <input type="text" maxlength="2000" name="QuestionDescription" value="<%=freqQuestionsUser.questionDescription%>" /> </td> </tr> <tr> <td colspan="2" class="label">QuestionAnswer:</td> <td class="content"> <input type="text" maxlength="2000" name="QuestionAnswer" value="<%=Server.HtmlDecode(freqQuestionsUser.questionAnswer)%>" /> </td> </tr> <tr> <td colspan="3" class="tableFooter"> <br /> <a id="freqQuestionsUserUpdateButton" href="#" class="regularButton">Save</a> <a href="javascript:history.back()" class="regularButton">Cancel</a> </td> </tr> </table> </form> </asp:Content> Controller [AuthorizeAttribute(AdminRoles = "EditFreqQuestionsUser")] public ActionResult SaveFreqQuestionsUser(string QuestionDescription, string QuestionAnswer) { Guid freqQuestionsUserId = Request.Form["freqQuestionsUserId"] != null ? new Guid(Request.Form["freqQuestionsUserId"]) : Guid.Empty; //load agreement eula ref AdminProductionServices.FreqQuestionsUser freqqQuestionsUser = Administrator.Models.AdminProduction.FreqQuestionsUser.LoadFreqQuestionsUser(freqQuestionsUserId, string.Empty, string.Empty)[0]; freqqQuestionsUser.questionDescription = QuestionDescription; freqqQuestionsUser.questionAnswer = QuestionAnswer; //save it Administrator.Models.AdminProduction.FreqQuestionsUser.addFreqQuestionsUser(freqqQuestionsUser); return RedirectToAction("SearchFreqQuestionsUser", "Prod", new { FreqQuestionsUserId = freqQuestionsUserId }); }

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  • Where are config files for class libraries physically located?

    - by BadNinja
    My guess is that this question will fall under the category of "duh", but, nevertheless, I'm confused. When using config files in, for example, a Windows Forms Application, the config file can be found in C:\Program files\CompanyName\ProductName\Application.exe.config. However, with the class library I'm developing I do not see a "ClassLibrary.dll.config" file in the install folder after installing it (in tandem with another project) from Visual Studio. Even though I do not see the file anywhere, retrieving data from it works correctly. Plus, running the following code from a method within the class library returns the path you would expect: C:\Program files\CompanyName\ProductName\ClassLibrary.dll.config. If someone could shed some light on what I'm missing here, that would be really awesome. public static string MyMethod() { Assembly assem = Assembly.GetExecutingAssembly(); Configuration config = ConfigurationManager.OpenExeConfiguration(assem.Location); return "The assembly location was: " + assem.Location + Environment.NewLine + "The config file path was: " + config.FilePath; // Gives me "C:\Program files\CompanyName\ProductName\ClassLibrary.dll.config" }

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  • different location of AndroidManifest.xml

    - by didito
    i have a custom buildchain for an android project. there is a build.xml and build.properties. build.properties contains this line: manifest.file =${env.WORK_FOLDER}/AndroidManifest.xml and WORK_FOLDER is correctly set to proj_root_work. the layout is like the following: proj_root-_work [DIR] (some stuff gets preprocessed and all finally copied here - src, res, assets and the AndroidManifest.xml) -build.xml -build.properties then i call ant for my build configuration from the proj_root and it complains about not finding AndroidManifest.xml. when i put it in my proj_root it works, but i really want it in my _Work directory. i read that the file HAS TO BE in the root, what is the point then of the build.properties entry? also i saw some custom parameters to aapt.exe ... any hints welcome, thx

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  • Code Reuse is (Damn) Hard

    - by James Michael Hare
    Being a development team lead, the task of interviewing new candidates was part of my job.  Like any typical interview, we started with some easy questions to get them warmed up and help calm their nerves before hitting the hard stuff. One of those easier questions was almost always: “Name some benefits of object-oriented development.”  Nearly every time, the candidate would chime in with a plethora of canned answers which typically included: “it helps ease code reuse.”  Of course, this is a gross oversimplification.  Tools only ease reuse, its developers that ultimately can cause code to be reusable or not, regardless of the language or methodology. But it did get me thinking…  we always used to say that as part of our mantra as to why Object-Oriented Programming was so great.  With polymorphism, inheritance, encapsulation, etc. we in essence set up the concepts to help facilitate reuse as much as possible.  And yes, as a developer now of many years, I unquestionably held that belief for ages before it really struck me how my views on reuse have jaded over the years.  In fact, in many ways Agile rightly eschews reuse as taking a backseat to developing what's needed for the here and now.  It used to be I was in complete opposition to that view, but more and more I've come to see the logic in it.  Too many times I've seen developers (myself included) get lost in design paralysis trying to come up with the perfect abstraction that would stand all time.  Nearly without fail, all of these pieces of code become obsolete in a matter of months or years. It’s not that I don’t like reuse – it’s just that reuse is hard.  In fact, reuse is DAMN hard.  Many times it is just a distraction that eats up architect and developer time, and worse yet can be counter-productive and force wrong decisions.  Now don’t get me wrong, I love the idea of reusable code when it makes sense.  These are in the few cases where you are designing something that is inherently reusable.  The problem is, most business-class code is inherently unfit for reuse! Furthermore, the code that is reusable will often fail to be reused if you don’t have the proper framework in place for effective reuse that includes standardized versioning, building, releasing, and documenting the components.  That should always be standard across the board when promoting reusable code.  All of this is hard, and it should only be done when you have code that is truly reusable or you will be exerting a large amount of development effort for very little bang for your buck. But my goal here is not to get into how to reuse (that is a topic unto itself) but what should be reused.  First, let’s look at an extension method.  There’s many times where I want to kick off a thread to handle a task, then when I want to reign that thread in of course I want to do a Join on it.  But what if I only want to wait a limited amount of time and then Abort?  Well, I could of course write that logic out by hand each time, but it seemed like a great extension method: 1: public static class ThreadExtensions 2: { 3: public static bool JoinOrAbort(this Thread thread, TimeSpan timeToWait) 4: { 5: bool isJoined = false; 6:  7: if (thread != null) 8: { 9: isJoined = thread.Join(timeToWait); 10:  11: if (!isJoined) 12: { 13: thread.Abort(); 14: } 15: } 16: return isJoined; 17: } 18: } 19:  When I look at this code, I can immediately see things that jump out at me as reasons why this code is very reusable.  Some of them are standard OO principles, and some are kind-of home grown litmus tests: Single Responsibility Principle (SRP) – The only reason this extension method need change is if the Thread class itself changes (one responsibility). Stable Dependencies Principle (SDP) – This method only depends on classes that are more stable than it is (System.Threading.Thread), and in itself is very stable, hence other classes may safely depend on it. It is also not dependent on any business domain, and thus isn't subject to changes as the business itself changes. Open-Closed Principle (OCP) – This class is inherently closed to change. Small and Stable Problem Domain – This method only cares about System.Threading.Thread. All-or-None Usage – A user of a reusable class should want the functionality of that class, not parts of that functionality.  That’s not to say they most use every method, but they shouldn’t be using a method just to get half of its result. Cost of Reuse vs. Cost to Recreate – since this class is highly stable and minimally complex, we can offer it up for reuse very cheaply by promoting it as “ready-to-go” and already unit tested (important!) and available through a standard release cycle (very important!). Okay, all seems good there, now lets look at an entity and DAO.  I don’t know about you all, but there have been times I’ve been in organizations that get the grand idea that all DAOs and entities should be standardized and shared.  While this may work for small or static organizations, it’s near ludicrous for anything large or volatile. 1: namespace Shared.Entities 2: { 3: public class Account 4: { 5: public int Id { get; set; } 6:  7: public string Name { get; set; } 8:  9: public Address HomeAddress { get; set; } 10:  11: public int Age { get; set;} 12:  13: public DateTime LastUsed { get; set; } 14:  15: // etc, etc, etc... 16: } 17: } 18:  19: ... 20:  21: namespace Shared.DataAccess 22: { 23: public class AccountDao 24: { 25: public Account FindAccount(int id) 26: { 27: // dao logic to query and return account 28: } 29:  30: ... 31:  32: } 33: } Now to be fair, I’m not saying there doesn’t exist an organization where some entites may be extremely static and unchanging.  But at best such entities and DAOs will be problematic cases of reuse.  Let’s examine those same tests: Single Responsibility Principle (SRP) – The reasons to change for these classes will be strongly dependent on what the definition of the account is which can change over time and may have multiple influences depending on the number of systems an account can cover. Stable Dependencies Principle (SDP) – This method depends on the data model beneath itself which also is largely dependent on the business definition of an account which can be very inherently unstable. Open-Closed Principle (OCP) – This class is not really closed for modification.  Every time the account definition may change, you’d need to modify this class. Small and Stable Problem Domain – The definition of an account is inherently unstable and in fact may be very large.  What if you are designing a system that aggregates account information from several sources? All-or-None Usage – What if your view of the account encompasses data from 3 different sources but you only care about one of those sources or one piece of data?  Should you have to take the hit of looking up all the other data?  On the other hand, should you have ten different methods returning portions of data in chunks people tend to ask for?  Neither is really a great solution. Cost of Reuse vs. Cost to Recreate – DAOs are really trivial to rewrite, and unless your definition of an account is EXTREMELY stable, the cost to promote, support, and release a reusable account entity and DAO are usually far higher than the cost to recreate as needed. It’s no accident that my case for reuse was a utility class and my case for non-reuse was an entity/DAO.  In general, the smaller and more stable an abstraction is, the higher its level of reuse.  When I became the lead of the Shared Components Committee at my workplace, one of the original goals we looked at satisfying was to find (or create), version, release, and promote a shared library of common utility classes, frameworks, and data access objects.  Now, of course, many of you will point to nHibernate and Entity for the latter, but we were looking at larger, macro collections of data that span multiple data sources of varying types (databases, web services, etc). As we got deeper and deeper in the details of how to manage and release these items, it quickly became apparent that while the case for reuse was typically a slam dunk for utilities and frameworks, the data access objects just didn’t “smell” right.  We ended up having session after session of design meetings to try and find the right way to share these data access components. When someone asked me why it was taking so long to iron out the shared entities, my response was quite simple, “Reuse is hard...”  And that’s when I realized, that while reuse is an awesome goal and we should strive to make code maintainable, often times you end up creating far more work for yourself than necessary by trying to force code to be reusable that inherently isn’t. Think about classes the times you’ve worked in a company where in the design session people fight over the best way to implement a class to make it maximally reusable, extensible, and any other buzzwordable.  Then think about how quickly that design became obsolete.  Many times I set out to do a project and think, “yes, this is the best design, I can extend it easily!” only to find out the business requirements change COMPLETELY in such a way that the design is rendered invalid.  Code, in general, tends to rust and age over time.  As such, writing reusable code can often be difficult and many times ends up being a futile exercise and worse yet, sometimes makes the code harder to maintain because it obfuscates the design in the name of extensibility or reusability. So what do I think are reusable components? Generic Utility classes – these tend to be small classes that assist in a task and have no business context whatsoever. Implementation Abstraction Frameworks – home-grown frameworks that try to isolate changes to third party products you may be depending on (like writing a messaging abstraction layer for publishing/subscribing that is independent of whether you use JMS, MSMQ, etc). Simplification and Uniformity Frameworks – To some extent this is similar to an abstraction framework, but there may be one chosen provider but a development shop mandate to perform certain complex items in a certain way.  Or, perhaps to simplify and dumb-down a complex task for the average developer (such as implementing a particular development-shop’s method of encryption). And what are less reusable? Application and Business Layers – tend to fluctuate a lot as requirements change and new features are added, so tend to be an unstable dependency.  May be reused across applications but also very volatile. Entities and Data Access Layers – these tend to be tuned to the scope of the application, so reusing them can be hard unless the abstract is very stable. So what’s the big lesson?  Reuse is hard.  In fact it’s damn hard.  And much of the time I’m not convinced we should focus too hard on it. If you’re designing a utility or framework, then by all means design it for reuse.  But you most also really set down a good versioning, release, and documentation process to maximize your chances.  For anything else, design it to be maintainable and extendable, but don’t waste the effort on reusability for something that most likely will be obsolete in a year or two anyway.

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  • How to modify by loading and saving the same xml file

    - by cynthia hong
    I have a problem with modifying xml file when i first load and then save it with same file path and name. Below is my code. The error is "Access to the path C:\MyApp\Web.config is denied. If i change the path of the xdoc.Save to be different from xdoc.Load, then it will be ok. What is your recommandation to solve this problem? If possible, i need to modify the existing xml file(meaning xml file for loading and saving is the same path). XmlDocument xdoc = new XmlDocument(); xdoc.Load(@"C:\\MyApp\\Web.config"); XmlNode xn = xdoc.SelectSingleNode("//configuration/MyProvider"); XmlElement el = (XmlElement)xn; el.SetAttribute("defaultProvider", "MyCustomValue"); xdoc.Save(@"C:\\MyApp\\Web.config"); Thanks in advance.

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