Home » EF
Have you ever struggled to make your ASP.NET MVC views format your properties of type DateTime correctly? I have. And I’ve been shot in the leg by weird hacks made by both myself (just 6 months earlier) and someone else. .NET Date/DateTime formatting is an endless bag of funsies in…Continue reading How to format DateTimes in ASP.NET Core?
This post describes the fix to THE “No Entity Framework provider found for the ADO.NET provider with invariant name ‘System.Data.SqlClient’” error, which Visual Studio throws at your face when you try to run an application on any Windows-based system (or which you’ve dug out of event logs). Also, your application is…Continue reading Fixing the “No Entity Framework provider found for the ADO.NET provider with invariant name ‘System.Data.SqlClient’” error
This post describes how to run Entity Framework’s code-first migrations against a database located in Windows Azure. This is done by running the Update-Database commandlet with suitable switches, see below. The problem and symptoms Okay, so you’re developing your MVC+EF cool web app with a database in Azure, and you’re…Continue reading Applying Entity Framework’s Code-First Migrations against a Database in Azure by running Update-Database
This page describes multiple ways to fix the ‘Spatial types and functions are not available for this provider because the assembly ‘Microsoft.SqlServer.Types’ version 10 or higher could not be found.‘ exception which comes up during debugging or publishing your program, app or service using DbGeography. Symptoms While running a console…Continue reading Solving the “Spatial types and functions are not available …” -problem
While using Entity Framework and code-first migrations, Entity Framework (EF) creates the indexes for you – but what if you need to create a custom one, explicitly based on a certain field/column? Then you’ll have to tell EF which one to use as a key column. Usually, it’s easy –…Continue reading Fixing the error: “Column XX in table dbo.YY is of a type that is invalid for use as a key column in an index.”
This post describes an issue with EF’s code-first migrations, when mapping between DB’s DateTime (datetime2) and C#’s DateTime simply fails, and results in the Update-Database cmdlet failing, too. It is more or less a prime example of a situation, where the error itself tells very little about the actual issue,…Continue reading Fixing “An error occurred while updating the entries” while running code-first migrations in MVC 5 app