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How can I avoid duplicate rows from near-simultaneous SQL adds?

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问题 My Razor 3 web app is creating multiple rows for the same foreign key Id, when multiple input comes in for the same Id, and I would like help on how to avoid this. The SQL Server table stores data about records in another table (it's ratings users have given about certain things, where there is also a table of users and a table of rate-able things, so the ratings table has a foreign key id for user, a foreign key id for the thing rated, and a value for the rating). When no rating has been

Identity 2.0: Creating custom ClaimsIdentity eg: User.Identity.GetUserById<int>(int id) for Per Request Validation

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See this similar question: Need access more user properties in User.Identity I would like to create custom authentication methods to use with my Razor Views that allows easy access IdentityUser properties relational to the User.Identity object but I am not sure how to go about it. I want to create several custom extensions similar to User.Identity.GetUserName() , User.Identity.GetUserById() , etc... instead of using this ViewContextExtension method. My Authentication type is currently the default type DefaultAuthenticationTypes.ApplicationCookie from VS2013 MVC5 template. As Shoe stated, I

Identity 2.0: Creating custom ClaimsIdentity eg: User.Identity.GetUserById<int>(int id) for Per Request Validation

阅读更多关于 Identity 2.0: Creating custom ClaimsIdentity eg: User.Identity.GetUserById(int id) for Per Request Validation

问题 See this similar question: Need access more user properties in User.Identity I would like to create custom authentication methods to use with my Razor Views that allows easy access IdentityUser properties relational to the User.Identity object but I am not sure how to go about it. I want to create several custom extensions similar to User.Identity.GetUserName() , User.Identity.GetUserById() , etc... instead of using this ViewContextExtension method. My Authentication type is currently the

Correct, idiomatic way to use custom editor templates with IEnumerable models in ASP.NET MVC

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This question is a follow-up for Why is my DisplayFor not looping through my IEnumerable<DateTime>? A quick refresh. When: the model has a property of type IEnumerable<T> you pass this property to Html.EditorFor() using the overload that only accepts the lambda expression you have an editor template for the type T under Views/Shared/EditorTemplates then the MVC engine will automatically invoke the editor template for each item in the enumerable sequence, producing a list of the results. E.g., when there is a model class Order with property Lines : public class Order { public IEnumerable

Correct, idiomatic way to use custom editor templates with IEnumerable models in ASP.NET MVC

阅读更多关于 Correct, idiomatic way to use custom editor templates with IEnumerable models in ASP.NET MVC

问题 This question is a follow-up for Why is my DisplayFor not looping through my IEnumerable<DateTime>? A quick refresh. When: the model has a property of type IEnumerable<T> you pass this property to Html.EditorFor() using the overload that only accepts the lambda expression you have an editor template for the type T under Views/Shared/EditorTemplates then the MVC engine will automatically invoke the editor template for each item in the enumerable sequence, producing a list of the results. E.g.,