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  • linq-to-sql "an attempt has been made to attach or add an entity that is not new"?

    - by Curtis White
    I've been getting several errors: cannot add an entity with a key that is already in use An attempt has been made to attach or add an entity that is not new, perhaps having been loaded from another datacontext In case 1, this stems from trying to set the key for an entity versus the entity. In case 2, I'm not attaching an entity but I am doing this: MyParent.Child = EntityFromOtherDataContext; I've been using using the pattern of wrap everything with a using datacontext. In my case, I am using this in a web forms scenario, and obviously moving the datacontext object to a class wide member variables solves this. My questions are thus 2 fold: How can I get rid of these errors and not have to structure my program in an odd way or pass the datacontext around while keeping the local-wrap pattern? I assume I could make another hit to the database but that seems very inefficient. Would most people recommend that moving the datacontext to the class wide scope is desirable for web pages?

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  • Invoke an action that is using ASP.NET MVC [Authorize] from outside the application

    - by Nate Bross
    Is this possible? I'd like to expose a URL (action) such as http://mysever/myapp/UpdateHeartbeat/. In my MVC application it looks like [Authorize] [AcceptsVerbs(HttpVerbs.Post)] public ActionResult UpdateHeartbeat() { // update date in DB to DateTime.Now } Now, in my MVC application the user has logged in via FORMS authentication and they can execute that action to their hearts content. What I want to do, is hit that URL progromatically (as part of an API that I wouldl like to build) -- is there a way I can do that without removing the [Authorize] attribute and adding username/password as parameters to the POST?

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  • create own svn repository hosting

    - by netmajor
    Hey, Since week I use ToirtoiseSVN and AnkhSVN and GoogleCode and sourceforge.net as my project hosting. For me it's frustrating to fill all this forms before create next project. So I start thinking about mu own repository hosting... Can I use simple file hosting etc. and install there software like use Google or SourceForge to have my own SVN Server ? My point is to have independent repository in internet without all this uselessly UI interface which give me Google and SF to administrate my version control. I don't want to take advantage of already exist hosting like GoogleCode etc - I want to be independent from them! ;) Or maybe it's other way to do my own repository hosting and FREE ;) Please don't tell me that I'm at mercy of commercial hosting... :/ p.s. If I wrote something wrong, sorry ;)

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  • .net Components ... a Custom Form

    - by carlos
    Hi, I've been working in the creation of some custom components adding functionalites to the basic components such as a Datagridview. Now I want to create a custom Form ... I mean, when I choose add new item in the VS menu, there is a Windows form and some varians of it like an about box, or Dialog, that are simple Forms with a custom controls already on it. I want to have a login form for my set of applications, so this login is avialable for all the development team to use it in the different modules. How can I develop the form and then add it to the "Add New Item" screen? Thanks !!!

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  • Choosing MooTools over Google closure?

    - by Shekhar
    I am in a process to select javascript library for our new web application. This app is not very UI heavy but has forms, reports, search, calendars, tabs and target multiple countries like most web apps. We are a tiny team. Biggest concern is maintainability and readability of the code. We are Python programmers. After evaluating many other javascript frameworks we have narrowed down to mootools and google-closure. We loved mootools syntax. It took us no time to learn. It's like Python. On other hand we were stumped seeing private/public in google closure. It's tempting to go for mootools however, I would love to hear from you about specific advantages these frameworks offer over each other.

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  • Common Lisp implementation with CFFI and thread support on Mac, Windows, and Linux?

    - by mcandre
    Goal: Install Hunchentoot and be able to run Hunchentoot as a background thread. This is what I do: Install Common Lisp. Install Quicklisp. (ql:quickload "hunchentoot") (hunchentoot:start (make-instance 'hunchentoot:acceptor :port 4242)) The last command is supposed to start Hunchentoot, then return to the interpreter for further Common Lisp forms. For CLISP, SBCL, ABCL, ECL, and CCL, I get one of two results: Hunchentoot's dependency Bordeaux Threads fails to install. hunchentoot:start hangs. The web page never loads, and never 404s.

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  • What are the PHP Dos and Donts on XSS?

    - by AuGhost Ice
    Could any guru tell me the Dos and Donts of PHP when dealing with XSS issue? What de facto principles shoud I use when passing parameters between forms and dbs to prevent XSS? Are any of these maintaining state techniques of using 1. hidden form fields, 2.URL rewriting and 3.using cookies are vunerable to XSS? Also, can any one recommend me a good article that gives basic guidelines on how to prevent such vunerabilites been expolited? Or any coding examples?

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  • Hot to get custom http-header in asp.net?

    - by Sirius Lampochkin
    I have an asp.net appliction on the one server. There I've added code on server-side in Page_Load: Response.AddHeader("key", "password-key-from-hotel"); On the client side I have a form: $lt;form ... action="www.link-to-another-domaint" >   <input type="hidden" id="asd" value="fgh" > .... </form> <script type="text/javascript">   document.forms[0].submit(); </script> Then on the other domain - there is also my other application - I'm trying to get the hedaer "key" by this code: Request.Headers["key"].ToString(); But there is no such header. Is there is a desicion? Where is my mistake?

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  • Two Tables Serving as one Model in Rails

    - by matsko
    Is is possible in rails to setup on model which is dependant on a join from two tables? This would mean that for the the model record to be found/updated/destroyed there would need to be both records in both database tables linked together in a join. The model would just be all the columns of both tables wrapped together which may then be used for the forms and so on. This way when the model gets created/updated it is just one form variable hash that gets applied to the model? Is this possible in Rails 2 or 3?

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  • How cross-platform .Net framework really is?

    - by Ivan
    What is normally to be done to run a WinForms application on a Mac or Linux machine? a. Just copy and run (assuming they have a Framework installed). b. Rebuild. c. Cosmetic source code modifications. d. Heavy source code modifications and forms redesign. Assuming that the application is developed as 100% managed C# 3 code by means Visual C# Express or Visual Studio 2008 targeting .Net Framework 3.5, developed without using any 3-rd party components/libraries, without encapsulating nonmanaged code or any low-level hacks - only standard Microsoft-documented .Net Framework C# API used). Or the same conditions but C# 4 language, .Net Framework 4 and Visual Studio 2010.

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  • How to create and download an XML without storing it on the server

    - by CiccioMiami
    NET Web Forms** application. I would like to create a download link to make available to the user the possibility to download an XML file. However the file does not have to be stored on the server. In my aspx file I have the download link (placed inside a GridView): <asp:HyperLinField Text="Download" DataNavigateUrlFormatString="download.aspx?ProductId={0}" DataNavigateUrlFields="ProductId"> In the download.aspx.vb page: Dim productId As String = Request.QueryString("productId") Dim xmlDoc As String = _ProductServices.GetXmlDocPerId(productId) Dim xdoc As XmlDocument = New XmlDocument() xdoc.LoadXml(xmlLicense) Now I would like to create a file, place the XML content inside and deliver it to the user without saving it to the server. Shall I use a MemoryStream combined with a StreamReader?

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  • How should the View pull on the Presenter in the MVP pattern

    - by John Leidegren
    I have a ASP.NET Web Forms application and I'm using some dynamic controls in the view which depend on stuff that the presenter exposes. Is it okay for the view in this case to pull on the presenter for that data? Is there anything I should be extra careful about when considering testability and a loosely coupled design. The page in this case has it's own page-life cycle and the presenter doesn't know about this. However, the page-life cycle dictates that somethings must occur at specific moments in the page-life cycle. This smells like trouble... Any known pit falls?

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  • Continuous Deployment with a C#/ASP.NET website?

    - by Amber Shah
    I have a website in C#/ASP.NET that is currently in development. When we are in production, I would like to do releases frequently over the course of the day, as we fix bugs and add features (like this: http://toni.org/2010/05/19/in-praise-of-continuous-deployment-the-wordpress-com-story/). If you upload a new version of the site or even change a single file, it kicks out the users that are currently logged in and makes them start over any forms and such. Is there a secret to being able to do deployments without interfering with users for .NET sites?

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  • Text goes goes into separate lines when using a percentage padding

    - by Haxed
    Hi, I have a small problem in html forms. When I give the following css, .row .section-1 label {/* Formatting all section-1 labels */ padding: 0 5px 0 10px; margin: 3px 0 0 0; display:block; } This is the output that I get : However when I edit the css to put padding in the form of a percentage: .row .section-1 label {/* Formatting all section-1 labels */ padding: 0 40% 0 80%; margin: 3px 0 0 0; display: block; } This is the output I get : I want to use percentages, however I want the look in the first image. Any ideas?? Thanks

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  • php website url matching question

    - by jj
    hi, i am new to a php site, only familiar with .net web forms sites. i can't figure out how routing is working on this php site. www.oursite.com/suggestions.php is to suggestions.php www.oursite.com/suggestions also loads the php fine www.oursite.com/suggestions/ loads the php, but no css is applied www.oursite.com/suggestions/anything - anything that comes after the '/' is ignored and suggestions is loaded without css. so oursite.com/suggestions////// works, as does oursite.com/suggestions/2/2/2/2/whatever i have searched but not found any good explanation on how this is working. can someone explain or provide a good resource? thank you.

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  • Customizing the behavior of ControlDesigners for Controls derived from native .NET controls.

    - by Eric
    My question is related to this question: http://stackoverflow.com/questions/93541/baseline-snaplines-in-custom-winforms-controls However, in my case, I have created a new control that derives from TextBox rather than containing a TextBox. I would like to have a custom ControlDesigner, but I would like to modify the behavior of the TextBox's designer rather than having to write a complete designer myself. In particular, I'd like to be able to return the TextBox's SnapLines while providing some custom verbs. Is there a good way to do this? EDIT: To clarify, this is for Windows Forms in .NET 2.0.

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  • Custom control in DataViewGrid

    - by Winston
    I'm trying to embed a custom control in a Datagridview. I've looked at the Calendar (http://msdn.microsoft.com/en-us/library/7tas5c80.aspx) example but i just cant get it working for a custom control. I need the control to show for each object in the grid. Not just when the user edits the content. I need to do this so that i can bind my dataviewgrid to a datasource and have it create the required forms in the grid for each my object list. So that the user can do inline editing in the grid without having to double click the row and have a new dialog pop up. Any help would be greatly appreciated.

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  • 405: Method Not Allowed WCF

    - by luiscarlosch
    I can perfectly call a WCF web method from localhost. I published to this server: http://luiscarlosch.com/WebFormClean.aspx (only firefox or chrome) with the Visual Studio publishing tool and it works fine. The problem is when a try to access it from another computer. I get the 405: Method Not Allowed. But It doest make sense because It works fine when i access it remotely from the publisher computer as I said. Any idea? [ServiceContract(Namespace = "")] [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] public class ContactProxy { [WebGet()] [OperationContract] public Contact getByID(int IDContact) { Contact contact = new Contact(IDContact); return contact; } [OperationContract] public EntityData insertEntityData(int IDEntityDataFieldType, int IDContact, String value) { //Contact contact = new Contact(); // contact.insertEntityData(IDEntityDataFieldType, IDContact, value); EntityData entityData = new EntityData(); entityData.save(IDEntityDataFieldType, IDContact, value); return entityData; } } Neither method seems to work. I just noticed some user were able to access http://luiscarlosch.com/WebFormClean.aspx because they change the values. So. some clients can read the methods but some cant. This should be happening. Web Config <?xml version="1.0"?> <configuration> <configSections> </configSections> <connectionStrings> <add name="ApplicationServices" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnetdb.mdf;User Instance=true" providerName="System.Data.SqlClient" /> </connectionStrings> <system.web> <compilation debug="true" targetFramework="4.0" /> <customErrors mode="Off"/> <authentication mode="Forms"> <forms loginUrl="~/Account/Login.aspx" timeout="2880" /> </authentication> <membership> <providers> <clear/> <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" /> </providers> </membership> <profile> <providers> <clear/> <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/"/> </providers> </profile> <roleManager enabled="false"> <providers> <clear/> <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/" /> <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/" /> </providers> </roleManager> </system.web> <system.webServer> <modules runAllManagedModulesForAllRequests="true"/> </system.webServer> <system.serviceModel> <behaviors> <serviceBehaviors> <behavior name="MyServiceTypeBehaviors" > <serviceMetadata httpGetEnabled="true" /> </behavior> </serviceBehaviors> <endpointBehaviors> <behavior name="WebApplicationTest.WCFProxy.EmployeeProxyAspNetAjaxBehavior"> <enableWebScript /> </behavior> <behavior name="WebApplicationTest.WCFProxy.EntityDataFieldCollectionProxyAspNetAjaxBehavior"> <enableWebScript /> </behavior> <behavior name="WebApplicationTest.WCFProxy.Service1AspNetAjaxBehavior"> <enableWebScript /> </behavior> <behavior name="WebApplicationTest.WCFProxy.ContactProxyAspNetAjaxBehavior"> <enableWebScript /> </behavior> </endpointBehaviors> </behaviors> <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" /> <services> <service name="WebApplicationTest.WCFProxy.EmployeeProxy" behaviorConfiguration="MyServiceTypeBehaviors" > <endpoint address="" behaviorConfiguration="WebApplicationTest.WCFProxy.EmployeeProxyAspNetAjaxBehavior" binding="webHttpBinding" contract="WebApplicationTest.WCFProxy.EmployeeProxy" /> <endpoint contract="IMetadataExchange" binding="mexHttpBinding" address="mex" /> </service> <service name="WebApplicationTest.WCFProxy.EntityDataFieldCollectionProxy" behaviorConfiguration="MyServiceTypeBehaviors" > <endpoint address="" behaviorConfiguration="WebApplicationTest.WCFProxy.EntityDataFieldCollectionProxyAspNetAjaxBehavior" binding="webHttpBinding" contract="WebApplicationTest.WCFProxy.EntityDataFieldCollectionProxy" /> <endpoint contract="IMetadataExchange" binding="mexHttpBinding" address="mex" /> </service> <service name="WebApplicationTest.WCFProxy.Service1"> <endpoint address="" behaviorConfiguration="WebApplicationTest.WCFProxy.Service1AspNetAjaxBehavior" binding="webHttpBinding" contract="WebApplicationTest.WCFProxy.Service1" /> </service> <service name="WebApplicationTest.WCFProxy.ContactProxy" behaviorConfiguration="MyServiceTypeBehaviors" ><!--new--> <endpoint address="" behaviorConfiguration="WebApplicationTest.WCFProxy.ContactProxyAspNetAjaxBehavior" binding="webHttpBinding" contract="WebApplicationTest.WCFProxy.ContactProxy" /> <endpoint contract="IMetadataExchange" binding="mexHttpBinding" address="mex" /> </service> </services> <bindings /> <client /> </system.serviceModel> </configuration>

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  • Multiblog engine for asp.net

    - by Andrey
    I know, different forms of this questions were asked on this site multiple times, but I haven't seen a single answer that would satisfy my need. I need a ASP.NET based blogging engine that wouul use SQL Server as a back end and allow multiple independet blogs in one app instance. I'm writing a community website for major bank and blogging is the piece I'm not sure about. Answers to other questions include a broad spectrum from BlogEngine.NET (doesn't support multiple blogs) to CommunityServer (a beast! blogging is just asmall piece of it). I don't want to install a full-blown CRM and just use blogging, I want a blogging engine. I don't mind to buy a commercial one but I can't find one. I'm pretty much stuck, and any ideas are highly appreciated!

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  • Issue connecting to SQL Compact Edition on Windows Mobile 6 Emulator

    - by Chad
    I am developing an application for Windows Mobile 6 using an emulator. When I try to open the database connection to the SDF file it is throwing an exception that it is not able to connect or find the file. My questions are: Where on the mobile device is the SDF file supposed to be deployed? Does the SDF file get automatically deployed to the emulator when I build the project (like in then windows forms app) or do I have to do that manually? Any help would be appreciated.

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  • Cookie: ASP.NET SessionId Issue

    - by LB
    I have a load generator that appends a ASP.NET_SessionId to the Cookie when making a Soap test call from Machine A to Machine B. Cookie: ASP.NET_SessionId=gf0ouay24sdneiuicpiggn45; However, when I'm running the soap test hitting my local server it doesn't have an ASP.NET_Session variable in the cookie. Why is this happening? UPDATE: I'm getting this issue now on the server: Forms authentication failed for the request. Reason: The ticket supplied was invalid. I've followed this: http://msmvps.com/blogs/omar/archive/2006/08/20/108307.aspx But to no avail.

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  • disable text drag and drop

    - by maniek
    There is a common feature of modern browsers where a user can select some text and drag it to an input field. Within the same field it causes moving of text, between different fields it does copying. How do I disable that? If there is no portable way, I am mostly interested in firefox. This is an intranet webapp, so I am also interested in modifying the browser/getting a plugin to do this. Maybe some system-level settings (I`m on windows XP)? I need to keep the default select-copy-paste functionality. The background is I have multiple-field data entry forms, and users often drag something by mistake.

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  • Visual Studio CLR project

    - by Vit
    Hi, so I wanted to try my first CLR project in Visual C++. So I created console project, but since every tutorial I found about CLR programming was using C#, or windows forms, I just tried writing standart c++ Hello Word app using iostream (I think code isnt needed in this case) but I though it will give me some compile error, since iostream uses precompiled functions, and CLR app compiles into MSIL. I assumed that CLR programming using C++ means just using C++ syntax, but different functions for I/O and so. So, basicly, what I want to ask is, can any native console C++ app be compiled into MSIL and run by .NET framework?

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  • How can you block access form internet explorer in asp mvc

    - by Chase Aucoin
    I love microsoft development products! I hate microsoft browsers... I have made the decision to cut ties with internet explorer until they add support for some common W3 approved items. Namely 'multiple' in forms as well as about 5 other things... and as such I would like to urge my visitors to use a better browser. is there a way to setup an http handler or perhaps something in the asax file to route all ie users to a custom page? Thanks for the help! p.s. microsoft why must you make me love you and hate you.

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  • How to make .NET WebForm Routing work with Authorization

    - by jakmas
    I have routes that are being registered from the database into an asp.net website (non MVC). The routes register fine, they all work when I am logged in. What I am trying to do is create a landing page based on some route data: Page is [site]/landing/dell The route looks like: "landing/{client}" and it routes to my page Login.aspx, in there I get the client out of the route, then display some custom brand data based on the value. In my web.config, I have my authentication mode set to forms, with my loginUrl = "Login.aspx" When the user does not have the authorization cookie, it redirects the user to: [site]/Login.aspx?ReturnUrl=%2flanding%2fdell instead of keeping the route url, and displaying the correct data. The IIS server actually does not even process the route at all, just sends the user to the Login.aspx page. I have tried several additions to my web.config: etc, and many variations, but nothing seems to work. Ideas anyone? I assume this is a common issue, and it is just not well documented.

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