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• ASP.NET Web Site Administration Tool unkown Error ASP.NET 4 VS 2010

  - by Gabriel Guimarães

  I was following the MVCMusic tutorial with an machine with full sql server 2008 r2 and full visual studio professional and when I got to the page where it sets up membership (near page 66) the Web administration tool wont work, i got the following error: An error was encountered. Please return to the previous page and try again. my web config is…

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• Tulsa Dot Net Rocks

  - by dmccollough

  Carl Franklin & Richard Campbell of .NET Rocks are taking their show on the road and are going to make a stop in Tulsa Oklahoma on Wednesday April 28th, 2010. This event will be from 6:00 PM until 9:00 PM. This is a FREE EVENT, with FREE FOOD and FREE SWAG. They are also going to be bringing a special surprise guest speaker (It could be…

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• Ternary operator in VB.NET

  - by Jalpesh P. Vadgama

  We all know about Ternary operator in C#.NET. I am a big fan of ternary operator and I like to use it instead of using IF..Else. Those who don’t know about ternary operator please go through below link. http://msdn.microsoft.com/en-us/library/ty67wk28(v=vs.80).aspx Here you can see ternary operator returns one of the two values based on the…

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• Using MVC2 to update an Entity Framework v4 object with foreign keys fails

  - by jbjon

  With the following simple relational database structure: An Order has one or more OrderItems, and each OrderItem has one OrderItemStatus. Entity Framework v4 is used to communicate with the database and entities have been generated from this schema. The Entities connection happens to be called EnumTestEntities in the example. The trimmed…

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• The Interaction between Three-Tier Client/Server Model and Three-Tier Application Architecture Model

  The three-tier client/server model is a network architectural approach currently used in modern networking. This approach divides a network in to three distinct components. Three-Tier Client/Server Model Components Client Component Server Component Database Component The Client Component of the network typically represents any device on…

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• Using ADO.net Entity Framework 4 with Enumerations? How do I do it ?

  - by Perpetualcoder

  Question 1: I am playing around with EF4 and I have a model class like : public class Candidate { public int Id {get;set;} public string FullName {get;set;} public Gender Sex {get;set;} public EducationLevel HighestDegreeType {get;set;} } Here Gender and EducationLevel are Enums like: public enum Gender {Male,Female,Undisclosed}…

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• How can I add constraints to an ADO.NET Entity?

  - by Felipe Angriman

  I know how to mark a group of fields as primary key in ADO.NET entities but i haven't found a way to declare unique constraints or check constraints. Is this feature missing on the designer or on the framework? Thanx.

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• Is Classic ADO still viable for a mixed managed/unmanaged App?

  - by Andy Dent

  We have a complex architecture with much logic in unmanaged code that needs database access. Currently this is via ODBC drivers and MFC classes and we're considering the issues of migrating our abstraction layer to use ADO or ADO.Net. In the latter case we'd have to be pushing database logic back up into the .Net layer. I'm trying…

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• Securing ASP.Net Pages - Forms Authentication - C# and .Net 4

  - by SAMIR BHOGAYTA

  ASP.Net has a built-in feature named Forms Authentication that allows a developer to easily secure certain areas of a web site. In this post I'm going to build a simple authentication sample using C# and ASP.Net 4.0 (still in beta as of the posting date). Security settings with ASP.Net is configured from within the web.config file.…

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• Deleting entity with child relationships using .Net Entity Framework problem

  - by Am

  My God, EF is so frustrating. I can't seem to be able to get my head around what I need to do so I can delete an object. I seem to be able to remove the object but not the related child objects. Can anyone tell me what is the rule of thumb when you want to delete all related child objects of a given object? I've tried loading all…

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• Disable Foreign Key Exposure in Entity Framework?

  - by davemackey

  When I originally created a Dynamic Data project I told it to expose the foreign keys, but now I can't make mappings between two entities b/c of the foreign keys. When I click on mapping details while focused on my association I receive the message: Mappings are not allow for an association over exposed foreign keys. So I'd…

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• ASP.NET web forms as ASP.NET MVC

  - by lopkiju

  I am sorry for possible misleading about the title, but I have no idea for a proper title. Feel free to edit. Anyway, I am using ASP.NET Web Forms, and maybe this isn't how web forms is intended to be used, but I like to construct and populate HTML elements manually. It gives me more control. I don't use DataBinding and that…

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• How do you handle EF Data Contexts combined with asp.net custom membership/role providers

  - by KallDrexx

  I can't seem to get my head around how to implement a custom membership provider with Entity Framework data contexts into my asp.net MVC application. I understand how to create a custom membership/role provider by itself (using this as a reference). Here's my current setup: As of now I have a repository factory interface…

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• C# development with Mono and MonoDevelop

  - by developerit

  In the past two years, I have been developing .NET from my MacBook by running Windows XP into VM Ware and more recently into Virtual Box from OS X. This way, I could install Visual Studio and be able to work seamlessly. But, this way of working has a major down side: it kills the battery of my laptop… I can easiely last…

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• Skinny controller in ASP.NET MVC 4

  - by thangchung

  Rails community are always inspire a lot of best ideas. I really love this community by the time. One of these is "Fat models and skinny controllers". I have spent a lot of time on ASP.NET MVC, and really I did some miss-takes, because I made the controller so fat. That make controller is really dirty and very hard to…

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• ASP.NET MVC ModelCopier

  - by shiju

   In my earlier post ViewModel patten and AutoMapper in ASP.NET MVC application, We have discussed the need for  View Model objects and how to map values between View Model objects and Domain model objects using AutoMapper. ASP.NET MVC futures assembly provides a static class ModelCopier that can also use for…

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• Oracle Database Third Party Model Import and Scoring - Poll

  - by mark.hornick@oracle.com

  We in the Oracle Data Mining Technologies group are interested in your needs for third party model import. Are you interested in importing SAS, SPSS, R, etc. analytic models into Oracle for in-database scoring? Thank you for taking a minute to participate in this quick poll.Click here to take the poll.

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• Where I can find SQL Generated by Entity framework?

  - by Jalpesh P. Vadgama

  Few days back I was optimizing the performance with Entity framework and Linq queries and I was using LinqPad and looking SQL generated by the Linq or entity framework queries. After some point of time I got the same question in mind that how I can find the SQL Statement generated by Entity framework?. After some…

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• Entity Framework 6: Alpha2 Now Available

  - by ScottGu

  The Entity Framework team recently announced the 2nd alpha release of EF6.   The alpha 2 package is available for download from NuGet. Since this is a pre-release package make sure to select “Include Prereleases” in the NuGet package manager, or execute the following from the package manager console to…

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• Entity Framework mant to many insert

  - by Jacob

  I've been playing around with Entity Framework v2 and added some code to insert new entity with many to many relationship , lets say this entity is called meeting. I add hours to meeting : meeting.Hours.Add(hour); and I get different errors on different occasions On Update : Cannot insert the value NULL…

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• ASP.net MVC 2.0 using the same form for adding and editing.

  - by Chevex

  I would like to use the same view for editing a blog post and adding a blog post. However, I'm having an issue with the ID. When adding a blog post, I have no need for an ID value to be posted. When model binding binds the form values to the BlogPost object in the controller, it will auto-generate the ID in…

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• Seeding many to many tables with Entity Framework

  - by Doozer1979

  I have a meeting entity and a users entity which have a many to many relationship. I'm using Autopoco to create seed data for the Users and meetings How do i seed the UserMeetings linking table that is created by EntityFramework with seed data? The linking table has two fields in it; User_Id, and…

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• Defining an Entity Framework 1:1 association

  - by Craig Fisher

  I'm trying to define a 1:1 association between two entities (one maps to a table and the other to a view - using DefinedQuery) in an Entity Framework model. When trying to define the mapping for this in the designer, it makes me choose the (1) table or view to map the association to. What am I…

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• Prevent Custom Entity being deleted from Entity Framework during Update Model Wizard

  - by rbg

  In Entity Framework v1 If you create a Custom Entity to map it to a Stored Procedure during FunctionImport and then Select "Update Model from Database" the Update Model Wizard removes the Custom Entity (as added Manually in the SSDL XML prior to functionImport) from the SSDL. Does anyone know…

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• ASP.NET Web API Exception Handling

  - by Fredrik N

  When I talk about exceptions in my product team I often talk about two kind of exceptions, business and critical exceptions. Business exceptions are exceptions thrown based on “business rules”, for example if you aren’t allowed to do a purchase. Business exceptions in most case aren’t…

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