When using Entity Framework Database First it can happen that the code generated by the edmx file causes Code Analysis errors. This happens due to the fact that the t4-template misses the GeneratedCode attribute. It is pretty easy to modify the template to contain the necessary attributes.

Modify the context template

1. Add using System.CodeDom.Compiler; at the right position in the using directives
2. Add [GeneratedCode(“EntityModelCodeGenerator”, “4.0.0.0”)] above the class declaration line

Modify the template of the model classes

1. Find EntityClassOpening and modify to the return a string starting with the GeneratedCode attribute
2. Find <#=codeStringGenerator.UsingDirectives(inHeader: false)#> and add  below using System.CodeDom.Compiler;