QueryInterceptor.Core 1.0.10

.NET Standard 1.3 .NET Framework 4.0

dotnet add package QueryInterceptor.Core --version 1.0.10

NuGet\Install-Package QueryInterceptor.Core -Version 1.0.10

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.Core" Version="1.0.10" />

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

<PackageVersion Include="QueryInterceptor.Core" Version="1.0.10" />
                    

                            Directory.Packages.props

<PackageReference Include="QueryInterceptor.Core" />
                    

                            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.Core --version 1.0.10

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

#r "nuget: QueryInterceptor.Core, 1.0.10"

#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.Core&version=1.0.10
                    

                            Install as a Cake Addin

#tool nuget:?package=QueryInterceptor.Core&version=1.0.10
                    

                            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);
        }
    }
}

Sponsors

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

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	netcoreapp1.0 was computed. netcoreapp1.1 was computed. netcoreapp2.0 was computed. netcoreapp2.1 was computed. netcoreapp2.2 was computed. netcoreapp3.0 was computed. netcoreapp3.1 was computed.
.NET Standard	netstandard1.3 is compatible. netstandard1.4 was computed. netstandard1.5 was computed. netstandard1.6 was computed. netstandard2.0 is compatible. netstandard2.1 was computed.
.NET Framework	net40 is compatible. net403 was computed. net45 was computed. net451 was computed. net452 was computed. net46 was computed. 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	tizen30 was computed. tizen40 was computed. tizen60 was computed.
Universal Windows Platform	uap was computed. uap10.0 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)

Learn more about Target Frameworks and .NET Standard.

.NETFramework 4.0
- No dependencies.
.NETStandard 1.3
- Microsoft.CSharp (>= 4.3.0)
- NETStandard.Library (>= 1.6.1)
- System.Diagnostics.Debug (>= 4.3.0)
- System.Diagnostics.TraceSource (>= 4.3.0)
- System.Globalization (>= 4.3.0)
- System.Linq (>= 4.3.0)
- System.Reflection.TypeExtensions (>= 4.3.0)
.NETStandard 2.0
- Microsoft.CSharp (>= 4.3.0)

NuGet packages (1)

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

Package	Downloads
LinqToAnything Turn any data source into an IQueryable	208.0K

GitHub repositories (1)

Showing the top 1 popular GitHub repositories that depend on QueryInterceptor.Core:

Repository	Stars
zzzprojects/System.Linq.Dynamic.Core The .NET Standard / .NET Core version from the System Linq Dynamic functionality.	1.7K

Version	Downloads	Last Updated
1.0.10	254	6/22/2025
1.0.9	14,506	11/23/2023
1.0.8	8,391	2/22/2023
1.0.7	71,119	12/1/2018
1.0.6	12,375	11/1/2017
1.0.5	58,459	11/20/2016
1.0.4	5,090	10/31/2016
1.0.3	5,716	5/15/2016
1.0.2	1,500	4/24/2016
1.0.1	1,466	4/21/2016

See releasenotes