Permanently disable Configuration.ProxyCreationEnabled in EF?

Question

Instead of having to do the following on every query, is there a way to just set that value globally? There is a lazyloading setting in the model view, but there does not se

Answer 1

You can disable it in the constructor, so that it gets disabled anytime you create a new context:

public class LabEntities : DbContext
{
   public LabEntities()
   {
      Configuration.ProxyCreationEnabled = false;
   }
}

Answer 2

If you're using a model-first approach, meaning you have a .edmx file, the way to permanently disable this option is to modify the .Context.tt file. This file is a code generation template that the build process uses to generate your DbContext-derived class.

Open this file and locate the constructor:

public <#=Code.Escape(container)#>()
        : base("name=<#=container.Name#>")
    {
<#
        WriteLazyLoadingEnabled(container);
#>
        //add the following line of code

        this.Configuration.ProxyCreationEnabled = false;
    }

then add the line of code to set this property to false. Rebuild your project and verify the generated context contains the line.