QueryInterceptor.EntityFrameworkCore 8.0.10

.NET 8.0

dotnet add package QueryInterceptor.EntityFrameworkCore --version 8.0.10

NuGet\Install-Package QueryInterceptor.EntityFrameworkCore -Version 8.0.10

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="8.0.10" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="QueryInterceptor.EntityFrameworkCore" Version="8.0.10" />
                    

                            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 8.0.10

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: QueryInterceptor.EntityFrameworkCore, 8.0.10"

#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=8.0.10
                    

                            Install as a Cake Addin

#tool nuget:?package=QueryInterceptor.EntityFrameworkCore&version=8.0.10
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

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);
        }
    }
}

Product	Compatible and additional computed target framework versions.
.NET	net8.0 is compatible. 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.

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.	1.2K

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
8.0.10	133	6/22/2025
8.0.9	3,854	11/23/2023
7.0.10	125	6/22/2025
7.0.9	431	11/23/2023
7.0.8	7,815	2/22/2023
6.0.10	127	6/22/2025
6.0.9	145	11/23/2023
6.0.8	303	2/22/2023
2.0.10	130	6/22/2025
2.0.9	148	11/23/2023
2.0.8	300	2/22/2023
1.0.10	125	6/22/2025
1.0.9	155	11/23/2023
1.0.8	297	2/22/2023
1.0.7	9,455	12/1/2018
1.0.1	1,580	11/5/2017
1.0.0	1,159	11/2/2017

See releasenotes