Tag Archives: Entity Framework
Entity Framework 5 easier way to update record
In the past with EF if you wanted to update a record you would need to do something like this:
Create a dynamic where clause using Linq
The scenario that came up today was this. A data entry application has the following fields, FirstName, LastName, and EmailAddress.
CS0012: The type ‘System.Data.Spatial.DbGeography’ in Entity Framework and MVC
Last night I was working on a MVC4 project. Utilizing Entity Framework 5’s new DBGeography when adding the field to the MVC view I received the following error:
MVC display an image that is stored as a byte array
So the scenario is; how do we retrieve images that are stored in a database as a byte array and display them on a page utilizing Asp.net MVC. The major hurtle that needs to be overcome is that a … Continue reading
DatabaseGeneratedOption does not Exist error after upgrading to Entity Framework 5.x RC or .NET Framework 4.5
Like so many others over the weekend I upgraded to the last RC builds of various Visual Studio 2012 related products. While updating my Web Api sample project ChlodnyWebApi I ran into one error when upgrading to Entity Framework 5 … Continue reading
Released Entity Framework Power Tools Beta 2
A few weeks ago I demo’d how to reverse engineer an existing database using the Entity Framework Power tools Beta 1. A few days ago (9th of April) the EF team released an update to that tool setup with some … Continue reading
Chlodny series Day 6: ASP.NET Web API Get configuration
ASP.NET Web API exposes data through a controller called an API controller. This controller can be added to an existing controller. To add a new controller: Right-click the controllers folder in the ChlodnyWebApi project and select Add –> Controller. In … Continue reading
SWFL .NET Developer User Group Presentation: Entity Framework Code First, Asp.Net Web Api, and HTML/jQuery
For the month of March I was the presenter at the SWFL .NET Developer User group. I am either getting better at this stuff or they are just really loving to be punished. A big shout out and thanks to … Continue reading
Chlodny series Day 5: Brief: What is ASP.NET Web API?
ASP.NET Web API is the new product born from WCF for jQuery. Web API allows services to be created over HTTP rather then utilizing a service contract (SOAP or WS). Web API creates an avenue for developers to expose data … Continue reading
Chlodny series Day 4: Entity Framework Code First Migration
Before Entity Framework Code First Migration was introduced in version 4.3. Developers had a few options if the domain model was different from the database schema. CreateDatabaseIfNotExists : Pretty self explanatory, if on application start Entity Framework cannot find the … Continue reading
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