QueryInterceptor.EntityFrameworkCore 2.0.10

.NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package QueryInterceptor.EntityFrameworkCore --version 2.0.10
                    


                    

                
NuGet\Install-Package QueryInterceptor.EntityFrameworkCore -Version 2.0.10
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="QueryInterceptor.EntityFrameworkCore" Version="2.0.10" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="QueryInterceptor.EntityFrameworkCore" Version="2.0.10" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="QueryInterceptor.EntityFrameworkCore" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add QueryInterceptor.EntityFrameworkCore --version 2.0.10
                    


                    

                
#r "nuget: QueryInterceptor.EntityFrameworkCore, 2.0.10"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#addin nuget:?package=QueryInterceptor.EntityFrameworkCore&version=2.0.10
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=QueryInterceptor.EntityFrameworkCore&version=2.0.10
                    


                            Install as a Cake Tool

QueryInterceptor.Core

The problem

Normally when you're trying to modify expression trees you need to write an expression visitor. When trying to plug your expression visitor into an IQuerable's expression tree, you need to write a linq provider (yikes).

Implementation based on http://stackoverflow.com/questions/1839901/how-to-wrap-entity-framework-to-intercept-the-linq-expression-just-before-executi

The solution

QueryInterceptor introduces one extension method on IQueryable<T> (InterceptWith) that lets you plug in arbitrary expression visitors.

namespace QueryInterceptor
{
    public static class QueryableExtensions
    {
        public static IQueryable<T> InterceptWith<T>(this IQueryable<T> source, params ExpressionVisitor[] visitors);
    }
}

Basic Example

The example below uses an expression visitor that changes == to != anywhere in the expression tree.

public class EqualsToNotEqualsVisitor : ExpressionVisitor 
{
    protected override Expression VisitBinary(BinaryExpression node) 
    {
        if (node.NodeType == ExpressionType.Equal) 
        {
            // Change == to !=
            return Expression.NotEqual(node.Left, node.Right);
        }

        return base.VisitBinary(node);
    }
}

class Program 
{
    static void Main(string[] args) 
    {
        var query = from n in Enumerable.Range(0, 10).AsQueryable()
                    where n % 2 == 0
                    select n;

        // Print even numbers
        foreach (var item in query)
        {
            Console.WriteLine(item);
        }

        Console.WriteLine();

        // Print odd numbers
        var visitor = new EqualsToNotEqualsVisitor();
        foreach (var item in query.InterceptWith(visitor))
        {
            Console.WriteLine(item);
        }
    }
}

Sponsors

Entity Framework Extensions and Dapper Plus are major sponsors and proud to contribute to the development of QueryInterceptor.Core.

Entity Framework Extensions

Dapper Plus

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
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NuGet packages (1)

Showing the top 1 NuGet packages that depend on QueryInterceptor.EntityFrameworkCore:

Package Downloads
Generics.Specifications.EntityFramework

Entity Framework hook for Generics.Specifications.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
8.0.10 137 6/22/2025
8.0.9 3,901 11/23/2023
7.0.10 129 6/22/2025
7.0.9 431 11/23/2023
7.0.8 7,863 2/22/2023
6.0.10 130 6/22/2025
6.0.9 145 11/23/2023
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2.0.10 135 6/22/2025
2.0.9 148 11/23/2023
2.0.8 302 2/22/2023
1.0.10 130 6/22/2025
1.0.9 155 11/23/2023
1.0.8 300 2/22/2023
1.0.7 9,455 12/1/2018
1.0.1 1,581 11/5/2017
1.0.0 1,160 11/2/2017

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