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  • CLR JIT Bugs Found During IKVM.NET Development

    "It is actually fairly common that people notice that things fail under retail but not debug and tend to blame code generation. While a code generation bug is possible, as a matter of statistics, it is not likely." -- Vance MorrisonDateCLRArchTypeDescription2010-06-12 v4 x64 Incorrect code Optimizer incorrectly propagates invariants.2010-06-04 v2, v4 x86 Crash ...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Five New Videos on ASP.NET MVC 2!

    Joe Stagner starts a new "ASP.NET MVC For the Rest of Us" video series with 3 videos showing how to write an MVC application, and Jon Galloway delivers quick hits on ASP.NET MVC 2 Areas and Render Action.

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  • Data Source Connection Pool Sizing

    - by Steve Felts
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} One of the most time-consuming procedures of a database application is establishing a connection. The connection pooling of the data source can be used to minimize this overhead.  That argues for using the data source instead of accessing the database driver directly. Configuring the size of the pool in the data source is somewhere between an art and science – this article will try to move it closer to science.  From the beginning, WLS data source has had an initial capacity and a maximum capacity configuration values.  When the system starts up and when it shrinks, initial capacity is used.  The pool can grow to maximum capacity.  Customers found that they might want to set the initial capacity to 0 (more on that later) but didn’t want the pool to shrink to 0.  In WLS 10.3.6, we added minimum capacity to specify the lower limit to which a pool will shrink.  If minimum capacity is not set, it defaults to the initial capacity for upward compatibility.   We also did some work on the shrinking in release 10.3.4 to reduce thrashing; the algorithm that used to shrink to the maximum of the currently used connections or the initial capacity (basically the unused connections were all released) was changed to shrink by half of the unused connections. The simple approach to sizing the pool is to set the initial/minimum capacity to the maximum capacity.  Doing this creates all connections at startup, avoiding creating connections on demand and the pool is stable.  However, there are a number of reasons not to take this simple approach. When WLS is booted, the deployment of the data source includes synchronously creating the connections.  The more connections that are configured in initial capacity, the longer the boot time for WLS (there have been several projects for parallel boot in WLS but none that are available).  Related to creating a lot of connections at boot time is the problem of logon storms (the database gets too much work at one time).   WLS has a solution for that by setting the login delay seconds on the pool but that also increases the boot time. There are a number of cases where it is desirable to set the initial capacity to 0.  By doing that, the overhead of creating connections is deferred out of the boot and the database doesn’t need to be available.  An application may not want WLS to automatically connect to the database until it is actually needed, such as for some code/warm failover configurations. There are a number of cases where minimum capacity should be less than maximum capacity.  Connections are generally expensive to keep around.  They cause state to be kept on both the client and the server, and the state on the backend may be heavy (for example, a process).  Depending on the vendor, connection usage may cost money.  If work load is not constant, then database connections can be freed up by shrinking the pool when connections are not in use.  When using Active GridLink, connections can be created as needed according to runtime load balancing (RLB) percentages instead of by connection load balancing (CLB) during data source deployment. Shrinking is an effective technique for clearing the pool when connections are not in use.  In addition to the obvious reason that there times where the workload is lighter,  there are some configurations where the database and/or firewall conspire to make long-unused or too-old connections no longer viable.  There are also some data source features where the connection has state and cannot be used again unless the state matches the request.  Examples of this are identity based pooling where the connection has a particular owner and XA affinity where the connection is associated with a particular RAC node.  At this point, WLS does not re-purpose (discard/replace) connections and shrinking is a way to get rid of the unused existing connection and get a new one with the correct state when needed. So far, the discussion has focused on the relationship of initial, minimum, and maximum capacity.  Computing the maximum size requires some knowledge about the application and the current number of simultaneously active users, web sessions, batch programs, or whatever access patterns are common.  The applications should be written to only reserve and close connections as needed but multiple statements, if needed, should be done in one reservation (don’t get/close more often than necessary).  This means that the size of the pool is likely to be significantly smaller then the number of users.   If possible, you can pick a size and see how it performs under simulated or real load.  There is a high-water mark statistic (ActiveConnectionsHighCount) that tracks the maximum connections concurrently used.  In general, you want the size to be big enough so that you never run out of connections but no bigger.   It will need to deal with spikes in usage, which is where shrinking after the spike is important.  Of course, the database capacity also has a big influence on the decision since it’s important not to overload the database machine.  Planning also needs to happen if you are running in a Multi-Data Source or Active GridLink configuration and expect that the remaining nodes will take over the connections when one of the nodes in the cluster goes down.  For XA affinity, additional headroom is also recommended.  In summary, setting initial and maximum capacity to be the same may be simple but there are many other factors that may be important in making the decision about sizing.

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  • MSDN Simulcast Event: ASP.NET Web Platform Firestarter!

    Join your Microsoft Developer Evangelists on December 9 for this free event that will get you up to speed with Microsoft ASP.NET web development, going from zero to sixty in one day! By the end of the day, you’ll be familiar with latest advances and have a solid understanding of ASP.NET web development options. See our webcasts page for more information on this and other updcoming events, or download on-demand sessions.

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  • Implementing the MVC Design Pattern in ASP.NET...

    Design patterns can help solve complex design problems if they are properly used. The main advantage of using the Model-View-Control (MVC) pattern is decoupling the business and the presentation layers....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Implementing the MVC Design Pattern in ASP.NET...

    Design patterns can help solve complex design problems if they are properly used. The main advantage of using the Model-View-Control (MVC) pattern is decoupling the business and the presentation layers....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Five New Videos on ASP.NET MVC 2!

    Joe Stagner starts a new "ASP.NET MVC For the Rest of Us" video series with 3 videos showing how to write an MVC application, and Jon Galloway delivers quick hits on ASP.NET MVC 2 Areas and Render Action .

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  • ASP.NET Scheduler: How To Implement End-User Restrictions

    Check out this 2 step approach to prevent users from editing appointments in the ASPxScheduler: Step 1: Choose Restriction First decide which action in the ASPxScheduler you want to prevent. Heres a list of the available ones: AllowAppointmentConflicts AllowAppointmentCopy AllowAppointmentCreate AllowAppointmentDelete AllowAppointmentDrag AllowAppointmentDragBetweenResources AllowAppointmentEdit AllowAppointmentMultiSelect AllowAppointmentResize AllowInplaceEditor...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Data Source Security Part 4

    - by Steve Felts
    So far, I have covered Client Identity and Oracle Proxy Session features, with WLS or database credentials.  This article will cover one more feature, Identify-based pooling.  Then, there is one more topic to cover - how these options play with transactions.Identity-based Connection Pooling An identity based pool creates a heterogeneous pool of connections.  This allows applications to use a JDBC connection with a specific DBMS credential by pooling physical connections with different DBMS credentials.  The DBMS credential is based on either the WebLogic user mapped to a database user or the database user directly, based on the “use database credentials” setting as described earlier. Using this feature enabled with “use database credentials” enabled seems to be what is proposed in the JDBC standard, basically a heterogeneous pool with users specified by getConnection(user, password). The allocation of connections is more complex if Enable Identity Based Connection Pooling attribute is enabled on the data source.  When an application requests a database connection, the WebLogic Server instance selects an existing physical connection or creates a new physical connection with requested DBMS identity. The following section provides information on how heterogeneous connections are created:1. At connection pool initialization, the physical JDBC connections based on the configured or default “initial capacity” are created with the configured default DBMS credential of the data source.2. An application tries to get a connection from a data source.3a. If “use database credentials” is not enabled, the user specified in getConnection is mapped to a DBMS credential, as described earlier.  If the credential map doesn’t have a matching user, the default DBMS credential is used from the datasource descriptor.3b. If “use database credentials” is enabled, the user and password specified in getConnection are used directly.4. The connection pool is searched for a connection with a matching DBMS credential.5. If a match is found, the connection is reserved and returned to the application.6. If no match is found, a connection is created or reused based on the maximum capacity of the pool: - If the maximum capacity has not been reached, a new connection is created with the DBMS credential, reserved, and returned to the application.- If the pool has reached maximum capacity, based on the least recently used (LRU) algorithm, a physical connection is selected from the pool and destroyed. A new connection is created with the DBMS credential, reserved, and returned to the application. It should be clear that finding a matching connection is more expensive than a homogeneous pool.  Destroying a connection and getting a new one is very expensive.  If you can use a normal homogeneous pool or one of the light-weight options (client identity or an Oracle proxy connection), those should be used instead of identity based pooling. Regardless of how physical connections are created, each physical connection in the pool has its own DBMS credential information maintained by the pool. Once a physical connection is reserved by the pool, it does not change its DBMS credential even if the current thread changes its WebLogic user credential and continues to use the same connection. To configure this feature, select Enable Identity Based Connection Pooling.  See http://docs.oracle.com/cd/E24329_01/apirefs.1211/e24401/taskhelp/jdbc/jdbc_datasources/EnableIdentityBasedConnectionPooling.html  "Enable identity-based connection pooling for a JDBC data source" in Oracle WebLogic Server Administration Console Help. You must make the following changes to use Logging Last Resource (LLR) transaction optimization with Identity-based Pooling to get around the problem that multiple users will be accessing the associated transaction table.- You must configure a custom schema for LLR using a fully qualified LLR table name. All LLR connections will then use the named schema rather than the default schema when accessing the LLR transaction table.  - Use database specific administration tools to grant permission to access the named LLR table to all users that could access this table via a global transaction. By default, the LLR table is created during boot by the user configured for the connection in the data source. In most cases, the database will only allow access to this user and not allow access to mapped users. Connections within Transactions Now that we have covered the behavior of all of these various options, it’s time to discuss the exception to all of the rules.  When you get a connection within a transaction, it is associated with the transaction context on a particular WLS instance. When getting a connection with a data source configured with non-XA LLR or 1PC (using the JTS driver) with global transactions, the first connection obtained within the transaction is returned on subsequent connection requests regardless of the values of username/password specified and independent of the associated proxy user session, if any. The connection must be shared among all users of the connection when using LLR or 1PC. For XA data sources, the first connection obtained within the global transaction is returned on subsequent connection requests within the application server, regardless of the values of username/password specified and independent of the associated proxy user session, if any.  The connection must be shared among all users of the connection within a global transaction within the application server/JVM.

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  • ComboBox Data Binding

    - by Geertjan
    Let's create a databound combobox, levering MVC in a desktop application. The result will be a combobox, provided by the NetBeans ChoiceView, that displays data retrieved from a database: What follows is not much different from the NetBeans Platform CRUD Application Tutorial and you're advised to consult that document if anything that follows isn't clear enough. One kind of interesting thing about the instructions that follow is that it shows that you're able to create an application where each element of the MVC architecture can be located within a separate module: Start by creating a new NetBeans Platform application named "MyApplication". Model We're going to start by generating JPA entity classes from a database connection. In the New Project wizard, choose "Java Class Library". Click Next. Name the Java Class Library "MyEntities". Click Finish. Right-click the MyEntities project, choose New, and then select "Entity Classes from Database". Work through the wizard, selecting the tables of interest from your database, and naming the package "entities". Click Finish. Now a JPA entity is created for each of the selected tables. In the Project Properties dialog of the project, choose "Copy Dependent Libraries" in the Packaging panel. Build the project. In your project's "dist" folder (visible in the Files window), you'll now see a JAR, together with a "lib" folder that contains the JARs you'll need. In your NetBeans Platform application, create a module named "MyModel", with code name base "org.my.model". Right-click the project, choose Properties, and in the "Libraries" panel, click Add Dependency button in the Wrapped JARs subtab to add all the JARs from the previous step to the module. Also include "derby-client.jar" or the equivalent driver for your database connection to the module. Controler In your NetBeans Platform application, create a module named "MyControler", with code name base "org.my.controler". Right-click the module's Libraries node, in the Projects window, and add a dependency on "Explorer & Property Sheet API". In the MyControler module, create a class with this content: package org.my.controler; import org.openide.explorer.ExplorerManager; public class MyUtils { static ExplorerManager controler; public static ExplorerManager getControler() { if (controler == null) { controler = new ExplorerManager(); } return controler; } } View In your NetBeans Platform application, create a module named "MyView", with code name base "org.my.view".  Create a new Window Component, in "explorer" view, for example, let it open on startup, with class name prefix "MyView". Add dependencies on the Nodes API and on the Explorer & Property Sheet API. Also add dependencies on the "MyModel" module and the "MyControler" module. Before doing so, in the "MyModel" module, make the "entities" package and the "javax.persistence" packages public (in the Libraries panel of the Project Properties dialog) and make the one package that you have in the "MyControler" package public too. Define the top part of the MyViewTopComponent as follows: public final class MyViewTopComponent extends TopComponent implements ExplorerManager.Provider { ExplorerManager controler = MyUtils.getControler(); public MyViewTopComponent() { initComponents(); setName(Bundle.CTL_MyViewTopComponent()); setToolTipText(Bundle.HINT_MyViewTopComponent()); setLayout(new BoxLayout(this, BoxLayout.PAGE_AXIS)); controler.setRootContext(new AbstractNode(Children.create(new ChildFactory<Customer>() { @Override protected boolean createKeys(List list) { EntityManager entityManager = Persistence. createEntityManagerFactory("MyEntitiesPU").createEntityManager(); Query query = entityManager.createNamedQuery("Customer.findAll"); list.addAll(query.getResultList()); return true; } @Override protected Node createNodeForKey(Customer key) { Node customerNode = new AbstractNode(Children.LEAF, Lookups.singleton(key)); customerNode.setDisplayName(key.getName()); return customerNode; } }, true))); controler.addPropertyChangeListener(new PropertyChangeListener() { @Override public void propertyChange(PropertyChangeEvent evt) { Customer selectedCustomer = controler.getSelectedNodes()[0].getLookup().lookup(Customer.class); StatusDisplayer.getDefault().setStatusText(selectedCustomer.getName()); } }); JPanel row1 = new JPanel(new FlowLayout(FlowLayout.LEADING)); row1.add(new JLabel("Customers: ")); row1.add(new ChoiceView()); add(row1); } @Override public ExplorerManager getExplorerManager() { return controler; } ... ... ... Now run the application and you'll see the same as the image with which this blog entry started.

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  • ASP.NET Scheduler: How To Implement End-User Restrictions

    Check out this 2 step approach to prevent users from editing appointments in the ASPxScheduler: Step 1: Choose Restriction First decide which action in the ASPxScheduler you want to prevent. Heres a list of the available ones: AllowAppointmentConflicts AllowAppointmentCopy AllowAppointmentCreate AllowAppointmentDelete AllowAppointmentDrag AllowAppointmentDragBetweenResources AllowAppointmentEdit AllowAppointmentMultiSelect AllowAppointmentResize AllowInplaceEditor...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Ajax Enabled GoogleMap ASP.NET Control

    Use GoogleMap API on server side with ajax support...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Create a Web App Using ASP.NET MVC 2.0 Framework

    The benefits of using an MVC Framework is that it helps enforce a clean separation between the models, views, and controllers within a Web application....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Microsoft ASP.NET: Create Dynamic Web Applications

    Attend an upcoming live webcast or download the on-demand sessions and learn about the improvements in Microsoft ASP.NET 4. Hear about new controls and templating capabilities that enable rich Web development for applications using a variety of server-side technologies, new features of ASP.NET AJAX 4, and enhancements being made to server controls. Dive in and explore this content today.

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  • JqGrid addJSONData + ASP.NET 2.0 WS

    - by MilosC
    Dear community ! I am a bit lost. I' ve tried to implement a solution based on JqGrid and tried to use function as datatype. I've setted all by the book i guess, i get WS invoked and get JASON back, I got succes on clientside in ajaf call and i "bind" jqGrid using addJSONData but grid remains empty. I do not have any glue now... other "local" samples on same pages works without a problem (jsonstring ...) My WS method looks like : [WebMethod] [ScriptMethod(ResponseFormat = ResponseFormat.Json)] public string GetGridData() { // Load a list InitSessionVariables(); SA.DB.DenarnaEnota.DenarnaEnotaDB db = new SAOP.SA.DB.DenarnaEnota.DenarnaEnotaDB(); DataSet ds = db.GetLookupForDenarnaEnota(SAOP.FW.DB.RecordStatus.All); // Turn into HTML friendly format GetGridData summaryList = new GetGridData(); summaryList.page = "1"; summaryList.total = "10"; summaryList.records = "160"; int i = 0; foreach (DataRow dr in ds.Tables[0].Rows) { GridRows row = new GridRows(); row.id = dr["DenarnaEnotaID"].ToString(); row.cell = "[" + "\"" + dr["DenarnaEnotaID"].ToString() + "\"" + "," + "\"" + dr["Kratica"].ToString() + "\"" + "," + "\"" + dr["Naziv"].ToString() + "\"" + "," + "\"" + dr["Sifra"].ToString() + "\"" + "]"; summaryList.rows.Add(row); } return JsonConvert.SerializeObject(summaryList); } my ASCX code is this: jQuery(document).ready(function(){ jQuery("#list").jqGrid({ datatype : function (postdata) { jQuery.ajax({ url:'../../AjaxWS/TemeljnicaEdit.asmx/GetGridData', data:'{}', dataType:'json', type: 'POST', contentType: "application/json; charset=utf-8", complete: function(jsondata,stat){ if(stat=="success") { var clearJson = jsondata.responseText; var thegrid = jQuery("#list")[0]; var myjsongrid = eval('('+clearJson+')'); alfs thegrid.addJSONData(myjsongrid.replace(/\\/g,'')); } } } ); }, colNames:['DenarnaEnotaID','Kratica', 'Sifra', 'Naziv'], colModel:[ {name:'DenarnaEnotaID',index:'DenarnaEnotaID', width:100}, {name:'Kratica',index:'Kratica', width:100}, {name:'Sifra',index:'Sifra', width:100}, {name:'Naziv',index:'Naziv', width:100}], rowNum:15, rowList:[15,30,100], pager: jQuery('#pager'), sortname: 'id', // loadtext:"Nalagam zapise...", // viewrecords: true, sortorder: "desc", // caption:"Vrstice", // width:"800", imgpath: "../Scripts/JGrid/themes/basic/images"}); }); from WS i GET JSON like this: {”page”:”1?,”total”:”10?,”records”:”160?,”rows”:[{"id":"18","cell":"["18","BAM","Konvertibilna marka","977"]“},{”id”:”19?,”cell”:”["19","RSD","Srbski dinar","941"]“},{”id”:”20?,”cell”:”["20","AFN","Afgani","971"]“},{”id”:”21?,”cell”:”["21","ALL","Lek","008"]“},{”id”:”22?,”cell”:”["22","DZD","Alžirski dinar","012"]“},{”id”:”23?,”cell”:”["23","AOA","Kvanza","973"]“},{”id”:”24?,”cell”:”["24","XCD","Vzhodnokaribski dolar","951"]“},{”id”:”25?,”cell”:” ……………… ["13","PLN","Poljski zlot","985"]“},{”id”:”14?,”cell”:”["14","SEK","Švedska krona","752"]“},{”id”:”15?,”cell”:”["15","SKK","Slovaška krona","703"]“},{”id”:”16?,”cell”:”["16","USD","Ameriški dolar","840"]“},{”id”:”17?,”cell”:”["17","XXX","Nobena valuta","000"]“},{”id”:”1?,”cell”:”["1","SIT","Slovenski tolar","705"]“}]} i have registered this js : clientSideScripts.RegisterClientScriptFile("prototype.js", CommonFunctions.FixupUrlWithoutSessionID("~/WebUI/Scripts/prototype-1.6.0.2.js")); clientSideScripts.RegisterClientScriptFile("jquery.js", CommonFunctions.FixupUrlWithoutSessionID("~/WebUI/Scripts/JGrid/jquery.js")); clientSideScripts.RegisterClientScriptFile("jquery.jqGrid.js", CommonFunctions.FixupUrlWithoutSessionID("~/WebUI/Scripts/JGrid/jquery.jqGrid.js")); clientSideScripts.RegisterClientScriptFile("jqModal.js", CommonFunctions.FixupUrlWithoutSessionID("~/WebUI/Scripts/JGrid/js/jqModal.js")); clientSideScripts.RegisterClientScriptFile("jqDnR.js", CommonFunctions.FixupUrlWithoutSessionID("~/WebUI/Scripts/JGrid/js/jqDnR.js")); Basical i think it must be something stupid ...but i can figure it out now... Help wanted.

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  • ASP.NET MVC2 Implementing Custom RoleManager problem

    - by ile
    To create a custom membership provider I followed these instructions: http://stackoverflow.com/questions/2771094/asp-net-mvc2-custom-membership and these: http://mattwrock.com/post/2009/10/14/Implementing-custom-Membership-Provider-and-Role-Provider-for-Authinticating-ASPNET-MVC-Applications.aspx So far, I've managed to implement custom membership provider and that part works fine. RoleManager still needs some modifications... Project structure: SAMembershipProvider.cs: public class SAMembershipProvider : MembershipProvider { #region - Properties - private int NewPasswordLength { get; set; } private string ConnectionString { get; set; } 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; } public override bool EnablePasswordRetrieval { get { return enablePasswordRetrieval; } } public override bool EnablePasswordReset { get { return enablePasswordReset; } } public override bool RequiresQuestionAndAnswer { get { return requiresQuestionAndAnswer; } } public override int MaxInvalidPasswordAttempts { get { return maxInvalidPasswordAttempts; } } public override int PasswordAttemptWindow { get { return passwordAttemptWindow; } } public override bool RequiresUniqueEmail { get { return requiresUniqueEmail; } } public override MembershipPasswordFormat PasswordFormat { get { return passwordFormat; } } public override int MinRequiredPasswordLength { get { return minRequiredPasswordLength; } } public override int MinRequiredNonAlphanumericCharacters { get { return minRequiredNonAlphanumericCharacters; } } 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(); } 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(); } public override MembershipUserCollection FindUsersByName(string usernameToMatch, int pageIndex, int pageSize, out int totalRecords) { throw new NotImplementedException(); } public override MembershipUserCollection GetAllUsers(int pageIndex, int pageSize, out int totalRecords) { throw new NotImplementedException(); } public override int GetNumberOfUsersOnline() { throw new NotImplementedException(); } public override string GetPassword(string username, string answer) { throw new NotImplementedException(); } public override MembershipUser GetUser(object providerUserKey, bool userIsOnline) { throw new NotImplementedException(); } public override MembershipUser GetUser(string username, bool userIsOnline) { throw new NotImplementedException(); } public override string GetUserNameByEmail(string email) { throw new NotImplementedException(); } protected override void OnValidatingPassword(ValidatePasswordEventArgs e) { base.OnValidatingPassword(e); } public override string ResetPassword(string username, string answer) { throw new NotImplementedException(); } public override bool UnlockUser(string userName) { throw new NotImplementedException(); } public override void UpdateUser(MembershipUser user) { throw new NotImplementedException(); } public override bool ValidateUser(string username, string password) { AccountRepository accountRepository = new AccountRepository(); var user = accountRepository.GetUser(username); if (string.IsNullOrEmpty(password.Trim())) return false; if (user == null) return false; //string hash = EncryptPassword(password); var email = user.Email; var pass = user.Password; if (user == null) return false; if (pass == password) { //User = user; return true; } return false; } #endregion 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); } } SARoleProvider.cs public class SARoleProvider : RoleProvider { AccountRepository accountRepository = new AccountRepository(); public override bool IsUserInRole(string username, string roleName) { return true; } public override string ApplicationName { get { throw new NotImplementedException(); } set { throw new NotImplementedException(); } } public override void AddUsersToRoles(string[] usernames, string[] roleNames) { throw new NotImplementedException(); } public override void RemoveUsersFromRoles(string[] usernames, string[] roleNames) { throw new NotImplementedException(); } public override void CreateRole(string roleName) { throw new NotImplementedException(); } public override bool DeleteRole(string roleName, bool throwOnPopulatedRole) { throw new NotImplementedException(); } public override bool RoleExists(string roleName) { throw new NotImplementedException(); } public override string[] GetRolesForUser(string username) { int rolesCount = 0; IQueryable<RoleViewModel> rolesNames; try { // get roles for this user from DB... rolesNames = accountRepository.GetRolesForUser(username); rolesCount = rolesNames.Count(); } catch (Exception ex) { throw ex; } string[] roles = new string[rolesCount]; int counter = 0; foreach (var item in rolesNames) { roles[counter] = item.RoleName.ToString(); counter++; } return roles; } public override string[] GetUsersInRole(string roleName) { throw new NotImplementedException(); } public override string[] FindUsersInRole(string roleName, string usernameToMatch) { throw new NotImplementedException(); } public override string[] GetAllRoles() { throw new NotImplementedException(); } } AccountRepository.cs public class RoleViewModel { public string RoleName { get; set; } } public class AccountRepository { private DB db = new DB(); public User GetUser(string email) { return db.Users.SingleOrDefault(d => d.Email == email); } public IQueryable<RoleViewModel> GetRolesForUser(string email) { var result = ( from role in db.Roles join user in db.Users on role.RoleID equals user.RoleID where user.Email == email select new RoleViewModel { RoleName = role.Name }); return result; } } webconfig <membership defaultProvider="SAMembershipProvider" userIsOnlineTimeWindow="15"> <providers> <clear/> <add name="SAMembershipProvider" type="SA_Contacts.Membership.SAMembershipProvider, SA_Contacts" connectionStringName ="ShinyAntConnectionString" /> </providers> </membership> <roleManager defaultProvider="SARoleProvider" enabled="true" cacheRolesInCookie="true"> <providers> <clear/> <add name="SARoleProvider" type="SA_Contacts.Membership.SARoleProvider" connectionStringName ="ShinyAntConnectionString" /> </providers> </roleManager> AccountController.cs: public class AccountController : Controller { SAMembershipProvider provider = new SAMembershipProvider(); AccountRepository accountRepository = new AccountRepository(); public AccountController() { } public ActionResult LogOn() { return View(); } [AcceptVerbs(HttpVerbs.Post)] public ActionResult LogOn(string userName, string password, string returnUrl) { if (!ValidateLogOn(userName, password)) { return View(); } var user = accountRepository.GetUser(userName); var userFullName = user.FirstName + " " + user.LastName; FormsAuthentication.SetAuthCookie(userFullName, false); if (!String.IsNullOrEmpty(returnUrl) && returnUrl != "/") { return Redirect(returnUrl); } else { return RedirectToAction("Index", "Home"); } } public ActionResult LogOff() { FormsAuthentication.SignOut(); return RedirectToAction("Index", "Home"); } private bool ValidateLogOn(string userName, string password) { if (String.IsNullOrEmpty(userName)) { ModelState.AddModelError("username", "You must specify a username."); } if (String.IsNullOrEmpty(password)) { ModelState.AddModelError("password", "You must specify a password."); } if (!provider.ValidateUser(userName, password)) { ModelState.AddModelError("_FORM", "The username or password provided is incorrect."); } return ModelState.IsValid; } } In some testing controller I have following: [Authorize] public class ContactsController : Controller { SAMembershipProvider saMembershipProvider = new SAMembershipProvider(); SARoleProvider saRoleProvider = new SARoleProvider(); // // GET: /Contact/ public ActionResult Index() { string[] roleNames = Roles.GetRolesForUser("[email protected]"); // Outputs admin ViewData["r1"] = roleNames[0].ToString(); // Outputs True // I'm not even sure if this method is the same as the one below ViewData["r2"] = Roles.IsUserInRole("[email protected]", roleNames[0].ToString()); // Outputs True ViewData["r3"] = saRoleProvider.IsUserInRole("[email protected]", "admin"); return View(); } If I use attribute [Authorize] then everything works ok, but if I use [Authorize(Roles="admin")] then user is always rejected, like he is not in role. Any idea of what could be wrong here? Thanks in advance, Ile

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  • ASP.NET TextBox TextChanged event not firing in custom EditorPart

    - by Ben Collins
    This is a classic sort of question, I suppose, but it seems that most people are interested in having the textbox cause a postback. I'm not. I just want the event to fire when a postback occurs. I have created a webpart with a custom editorpart. The editorpart renders with a textbox and a button. Clicking the button causes a dialog to open. When the dialog is closed, it sets the value of the textbox via javascript and then does __doPostBack using the ClientID of the editorpart. The postback happens, but the TextChanged event never fires, and I'm not sure if it's a problem with the way __doPostBack is invoked, or if it's because of the way I'm setting up the event handler, or something else. Here's what I think is the relevant portion of the code from the editorpart: protected override void CreateChildControls() { _txtListUrl = new TextBox(); _txtListUrl.ID = "targetSPList"; _txtListUrl.Style.Add(HtmlTextWriterStyle.Width, "60%"); _txtListUrl.ToolTip = "Select List"; _txtListUrl.CssClass = "ms-input"; _txtListUrl.Attributes.Add("readOnly", "true"); _txtListUrl.Attributes.Add("onChange", "__doPostBack('" + this.ClientID + "', '');"); _txtListUrl.Text = this.ListString; _btnListPicker = new HtmlInputButton(); _btnListPicker.Style.Add(HtmlTextWriterStyle.Width, "60%"); _btnListPicker.Attributes.Add("Title", "Select List"); _btnListPicker.ID = "browseListsSmtButton"; _btnListPicker.Attributes.Add("onClick", "mso_launchListSmtPicker()"); _btnListPicker.Value = "Select List"; this.AddConfigurationOption("News List", "Choose the list that serves as the data source.", new Control[] { _txtListUrl, _btnListPicker }); if (this.ShowViewSelection) { _txtListUrl.TextChanged += new EventHandler(_txtListUrl_TextChanged); _ddlViews = new DropDownList(); _ddlViews.ID = "_ddlViews"; this.AddConfigurationOption("View", _ddlViews); } } protected override void OnPreRender(EventArgs e) { ScriptLink.Register(this.Page, "PickerTreeDialog.js", true); string lastSelectedListId = string.Empty; if (!this.WebId.Equals(Guid.Empty) && !this.ListId.Equals(Guid.Empty)) { lastSelectedListId = SPHttpUtility.EcmaScriptStringLiteralEncode( string.Format("SPList:{0}?SPWeb:{1}:", this.ListId.ToString(), this.WebId.ToString())); } string script = "\r\n var lastSelectedListSmtPickerId = '" + lastSelectedListId + "';" + "\r\n function mso_launchListSmtPicker(){" + "\r\n if (!document.getElementById) return;" + "\r\n" + "\r\n var listTextBox = document.getElementById('" + SPHttpUtility.EcmaScriptStringLiteralEncode(_txtListUrl.ClientID) + "');" + "\r\n if (listTextBox == null) return;" + "\r\n" + "\r\n var serverUrl = '" + SPHttpUtility.EcmaScriptStringLiteralEncode(SPContext.Current.Web.ServerRelativeUrl) + "';" + "\r\n" + "\r\n var callback = function(results) {" + "\r\n if (results == null || results[1] == null || results[2] == null) return;" + "\r\n" + "\r\n lastSelectedListSmtPickerId = results[0];" + "\r\n var listUrl = '';" + "\r\n if (listUrl.substring(listUrl.length-1) != '/') listUrl = listUrl + '/';" + "\r\n if (results[1].charAt(0) == '/') results[1] = results[1].substring(1);" + "\r\n listUrl = listUrl + results[1];" + "\r\n if (listUrl.substring(listUrl.length-1) != '/') listUrl = listUrl + '/';" + "\r\n if (results[2].charAt(0) == '/') results[2] = results[2].substring(1);" + "\r\n listUrl = listUrl + results[2];" + "\r\n listTextBox.value = listUrl;" + "\r\n __doPostBack('" + this.ClientID + "','');" + "\r\n }" + "\r\n LaunchPickerTreeDialog('CbqPickerSelectListTitle','CbqPickerSelectListText','websLists','', serverUrl, lastSelectedListSmtPickerId,'','','/_layouts/images/smt_icon.gif','', callback);" + "\r\n }"; this.Page.ClientScript.RegisterClientScriptBlock(typeof(ListPickerEditorPart), "mso_launchListSmtPicker", script, true); if ((!string.IsNullOrEmpty(_txtListUrl.Text) && _ddlViews.Items.Count == 0) || _listSelectionChanged) { _ddlViews.Items.Clear(); if (!string.IsNullOrEmpty(_txtListUrl.Text)) { using (SPWeb web = SPContext.Current.Site.OpenWeb(this.WebId)) { foreach (SPView view in web.Lists[this.ListId].Views) { _ddlViews.Items.Add(new ListItem(view.Title, view.ID.ToString())); } } _ddlViews.Enabled = _ddlViews.Items.Count > 0; } else { _ddlViews.Enabled = false; } } base.OnPreRender(e); } void _txtListUrl_TextChanged(object sender, EventArgs e) { this.SetPropertiesFromChosenListString(_txtListUrl.Text); _listSelectionChanged = true; } Any ideas? Update: I forgot to mention these methods, which are called above: protected virtual void AddConfigurationOption(string title, Control inputControl) { this.AddConfigurationOption(title, null, inputControl); } protected virtual void AddConfigurationOption(string title, string description, Control inputControl) { this.AddConfigurationOption(title, description, new List<Control>(new Control[] { inputControl })); } protected virtual void AddConfigurationOption(string title, string description, IEnumerable<Control> inputControls) { HtmlGenericControl divSectionHead = new HtmlGenericControl("div"); divSectionHead.Attributes.Add("class", "UserSectionHead"); this.Controls.Add(divSectionHead); HtmlGenericControl labTitle = new HtmlGenericControl("label"); labTitle.InnerHtml = HttpUtility.HtmlEncode(title); divSectionHead.Controls.Add(labTitle); HtmlGenericControl divUserSectionBody = new HtmlGenericControl("div"); divUserSectionBody.Attributes.Add("class", "UserSectionBody"); this.Controls.Add(divUserSectionBody); HtmlGenericControl divUserControlGroup = new HtmlGenericControl("div"); divUserControlGroup.Attributes.Add("class", "UserControlGroup"); divUserSectionBody.Controls.Add(divUserControlGroup); if (!string.IsNullOrEmpty(description)) { HtmlGenericControl spnDescription = new HtmlGenericControl("div"); spnDescription.InnerHtml = HttpUtility.HtmlEncode(description); divUserControlGroup.Controls.Add(spnDescription); } foreach (Control inputControl in inputControls) { divUserControlGroup.Controls.Add(inputControl); } this.Controls.Add(divUserControlGroup); HtmlGenericControl divUserDottedLine = new HtmlGenericControl("div"); divUserDottedLine.Attributes.Add("class", "UserDottedLine"); divUserDottedLine.Style.Add(HtmlTextWriterStyle.Width, "100%"); this.Controls.Add(divUserDottedLine); }

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  • Parsing a JSON Response from a .Net webservice

    - by Maskau
    Just to get this out in the open I am new to JAVA, KSOAP, and JSON. So I'll try to explain this the best I can. A while ago I created a webservice to be consumed by Blackberry Apps that we're built using the plug in for Visual Studio. Now the project I am working on, I want to consume the same webservice for Android devices. For the most part I have the base code for the Android app done and working. Here's my problem: I can successfully call the webservice and get a response. I know from creating the webservice that it sends a JSON response. My problem is trying to parse through the JSON response. I have found a few examples that I have been suiting to my needs however I am hung up on one thing. In the JSON each element is preceeded by "anyType" which is forcing my code to return no results (Ultimately I am binding the data to an ArrayList) Here's what I get if I "getProperty(0).toString()... anyType{Artist=anyType{TrackName=Champagne Supernova;}; Here is the code I am using to parse the JSON Object.... SoapObject gr = (SoapObject)envelope.getResponse(); String ro = gr.getProperty(0).toString(); //Added just to see structure of response Artist_Result.add(gr.toString()); if (ro.startsWith("{")) { JSONObject JSONObj = new JSONObject(ro); Iterator<String> itr = JSONObj.keys(); while (itr.hasNext()) { String key = (String)itr.next(); String value = JSONObj.getString(key); //bundleResult.putString(key, value); Artist_Result.add(value); } } else if (ro.startsWith("[")) { JSONArr = new JSONArray(ro); for (int i = 0; i < JSONArr.length(); i++) { JSONObj = (JSONObject)JSONArr.get(i); //bundleResult.putString(String.valueOf(i), JSONObj.toString()); Artist_Result.add(JSONObj.toString()); } } WebService Code: [WebMethod] [return: System.Xml.Serialization.XmlArrayItemAttribute(typeof(Artist))] public Artist[] GetArtist(string ArtistQuery) { // All the SQL Stuff Here SqlDataReader sReader; sReader = cmd.ExecuteReader(); List<Artist> Artists = new List<Artist>(); while (sReader.Read()) { Artist result = new Artist(); result.TrackName = sReader.GetString(0); Artists.Add(result); } sReader.Close(); sqlConn.Close(); return Artists.ToArray(); } public class Artist { public string TrackName; } Sample of XML Output from a browser: <?xml version="1.0" encoding="utf-8" ?> - <ArrayOfArtist xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://bb.mcrcog.com/"> - <Artist> <TrackName>Champagne Supernova</TrackName> </Artist> - <Artist> <TrackName>Don't Look Back In Anger</TrackName> </Artist> - <Artist> <TrackName>D'you Know What I Mean</TrackName> </Artist> - <Artist> <TrackName>Go Let It Out</TrackName> </Artist> I have a feeling I will need to implement a Class, and Getters/Setters on the Android side. I'm just not sure how to go about doing that. Any help would be greatly appreciated!

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  • MSChart on ASP.NET MVC 2

    - by Adron
    I upgraded my MVC Application using MSChart to MVC 2 and have ended up with broken image links for the charts. See my blog entry here: http://blog.adronbhall.com/post/2010/04/12/MVC-2-Breaks-my-Charts.aspx I get no build errors anymore, and have completed the following steps. First, I setup the following web.config lines. add tagPrefix="asp" namespace="System.Web.UI.DataVisualization.Charting" assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" and add path="ChartImg.axd" verb="GET,HEAD" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false" (NOTE: I took the chevrons off so the lines would appear) The next thing I did was create this page with the following code. Which should, according to it working in MVC<1, showed 4 charts. <%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %> <%@ Import Namespace="Scorecard.Views" %> <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> Scorecard </asp:Content> <asp:Content ID="applicationTitle" ContentPlaceHolderID="ContentPlaceHolderApplicationName" runat="server"> <%=Html.Encode(ViewData["ApplicationTitle"])%> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <form id="form1" runat="server"> <h2> Web Analysis Scorecard </h2> <table> <tr> <td> <% ChartHelper chartHelper = new ChartHelper("Top Countries", (double[])ViewData["TopCountryCounts"], (string[])ViewData["TopCountries"], SeriesChartType.Pie); Chart chartPieTwo = chartHelper.ResultingChart; // Explode data point with label "USA" chartPieTwo.Series["DefaultSeries"].Points[3]["Exploded"] = "true"; chartHelper.RenderChart(this); %> </td> <td> <% chartHelper = new ChartHelper("View Cart Trend", (double[])ViewData["LineValues"], (string[])ViewData["TopEngines"], SeriesChartType.Line); chartHelper.RenderChart(this); %> </td> </tr> <tr> <td> <% chartHelper = new ChartHelper("Yesterday's Page Views", (double[])ViewData["ColumnStats"], (string[])ViewData["ColumnStatHeaders"], SeriesChartType.Column); chartHelper.RenderChart(this); %> </td> <td> <% double[] theValues = (double[])ViewData["ColumnStats"]; double[] newValues = new double[] { 0, 0, 0, 0 }; int count = 0; int daysInMonth = DateTime.DaysInMonth(DateTime.Now.Year, DateTime.Now.Month); foreach (double d in theValues) { newValues[count] += d * daysInMonth; count++; } chartHelper = new ChartHelper("Current Month Page Views", newValues, (string[])ViewData["ColumnStatHeaders"], SeriesChartType.Bar); chartHelper.RenderChart(this); %> </td> </tr> </table> </form>

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  • simple web parts in asp.net show as blank page

    - by Javaman59
    I am trying to develop web parts in VS 2008/WinXP I created a Web Site project, and added a couple of web parts within the default form in default.aspx <form id="form1" runat="server"> <div> <asp:WebPartManager ID="WebPartManager1" runat="server"> </asp:WebPartManager> <asp:WebPartZone ID="WebPartZone1" runat="server"> </asp:WebPartZone> </div> </form> When I first ran it (in the debugger), a popup told to me enable Windows authentication in IIS (so something is working!). I enabled the Windows authentication, and now when I run it I get a blank screen. Same result if I open it in IE via the url (rather than debugger). Following is the the source view. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head><title> </title><style type="text/css"> .WebPartZone1_0 { border-color:Black;border-width:1px;border-style:Solid; } </style></head> <body> <form name="form1" method="post" action="Default.aspx" id="form1"> <div> <input type="hidden" name="__WPPS" id="__WPPS" value="s" /> <input type="hidden" name="__EVENTTARGET" id="__EVENTTARGET" value="" /> <input type="hidden" name="__EVENTARGUMENT" id="__EVENTARGUMENT" value="" /> <input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwULLTEzNTQyOTkwNDZkZEAVY0VcQaHLv3uaF3svWgCOfsmb" /> </div> <script type="text/javascript"> //<![CDATA[ var theForm = document.forms['form1']; if (!theForm) { theForm = document.form1; } function __doPostBack(eventTarget, eventArgument) { if (!theForm.onsubmit || (theForm.onsubmit() != false)) { theForm.__EVENTTARGET.value = eventTarget; theForm.__EVENTARGUMENT.value = eventArgument; theForm.submit(); } } //]]> </script> <script src="/WebPartsSite/WebResource.axd?d=4lwrtwXryJ3Ri-GXAxZR4g2&amp;t=634003643420884071" type="text/javascript"></script> <div> <table cellspacing="0" cellpadding="0" border="0" id="WebPartZone1"> <tr> <td style="height:100%;"><table cellspacing="0" cellpadding="2" border="0" style="width:100%;height:100%;"> <tr> <td style="height:100%;"></td> </tr> </table></td> </tr> </table> </div> <script type="text/javascript"> //<![CDATA[ var __wpmExportWarning='This Web Part Page has been personalized. As a result, one or more Web Part properties may contain confidential information. Make sure the properties contain information that is safe for others to read. After exporting this Web Part, view properties in the Web Part description file (.WebPart) by using a text editor such as Microsoft Notepad.';var __wpmCloseProviderWarning='You are about to close this Web Part. It is currently providing data to other Web Parts, and these connections will be deleted if this Web Part is closed. To close this Web Part, click OK. To keep this Web Part, click Cancel.';var __wpmDeleteWarning='You are about to permanently delete this Web Part. Are you sure you want to do this? To delete this Web Part, click OK. To keep this Web Part, click Cancel.';//]]> </script> <script type="text/javascript"> __wpm = new WebPartManager(); __wpm.overlayContainerElement = null; __wpm.personalizationScopeShared = true; var zoneElement; var zoneObject; zoneElement = document.getElementById('WebPartZone1'); if (zoneElement != null) { zoneObject = __wpm.AddZone(zoneElement, 'WebPartZone1', true, false, 'black'); } </script> </form> </body> </html>

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