As a brief recap, the reason this post even exists is because the generated code from the EF4 designer does not properly suppress code analysis warnings. In that post, I mentioned that I would provide a proper T4 template and tutorial on integrating it into your EDMX model. This post details the steps to creating and customizing an Entity Framework 4 T4 template. T4 (the Text Template Transformation Toolkit) is the code generation technology built into Visual Studio. Thankfully, the EF4 designer has been enhanced to support customizable templates so that developers are free to change the code...

Update I have published the instructions and provided a template that can be used to properly suppress code analysis.   Starting a new project opens the doors for some great things. One of those things for me, was adherence to code analysis from the get-go. Visual Studio 2010 in particular has great Code Analysis Rule Set support allowing teams to carefully dictate which rules they wish to apply and suppress. Unfortunately, it wasn’t long before the decision to use Entity Framework 4 put a nice little wrench in my code analysis plan. (As an aside, I will blog more about my decision to use...

Unable to update the EntitySet 'PlanPriceHistory' because it has a DefiningQuery and no <InsertFunction> element exists in the <ModificationFunctionMapping> element to support the current operation. While I was getting my feet wet in Entity Framework 4 (from the Visual Studio 2010 Beta 2 release), I generated my EDMX from an existing legacy database. All was going well – for a few days in fact, until I attempted to Insert an entity to a specific table (seen below). After some digging around in my model/EDMX configuration thinking something was wrong in there, I decided to open...

This post is a follow-up to an article I wrote a few weeks ago, ADO.NET Entity Framework Comparison Frustration. As a quick re-cap, I was simply trying to filter a list of users with a LINQ query expression by comparing custom classes, not primitive types. TorvusEntities entities = new TorvusEntities(); // Pull my Account Entity from the database Account matt = entities.Accounts.First(a => a.AccountId == 10); // Attempt to get all Teams by a Team Owner var teams = from t in entities.Teams where t.Owner == matt ...

Today I began playing with the ADO.NET Entity Framework. This framework looks very promising and I plan on experimenting with it heavily this weekend, so expect some more ADOe articles over the next few weeks. [Update: I discovered more about this subject while reading in-depth the MSDN articles on the ADO.NET Entity Framework. I have updated my conclusions at Entity Framework Comparison Frustration: Explained] Without going into too much detail, ADOe is very similar to LINQ to SQL. It is essentially a more advanced OR/M that is built into the .NET framework and integrated heavily with Visual Studio designer support, complete with...