dotnet-dynamic-filter-expression 1.0.0

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 
dotnet add package dotnet-dynamic-filter-expression --version 1.0.0
                    


                    

                
NuGet\Install-Package dotnet-dynamic-filter-expression -Version 1.0.0
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="dotnet-dynamic-filter-expression" Version="1.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="dotnet-dynamic-filter-expression" Version="1.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="dotnet-dynamic-filter-expression" />
                    


                            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 dotnet-dynamic-filter-expression --version 1.0.0
                    


                    

                
#r "nuget: dotnet-dynamic-filter-expression, 1.0.0"
#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. 
#:package dotnet-dynamic-filter-expression@1.0.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=dotnet-dynamic-filter-expression&version=1.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=dotnet-dynamic-filter-expression&version=1.0.0
                    


                            Install as a Cake Tool

Dotnet Dynamic Filter Expression

This libary will help translate string into a C# Expression Tree Example: ((Name eq `Phuc Nguyen`) & (Age gt `25`)) ⇒ x => x.Name == "Phuc Nguyen" && x.Age > 25

Example Code:

using FilterExpression;
using FilterExpression.Extension;

var list = new List<Customer>
{
    new Customer{ Name = "Name 1", Age = 25, Id = 1, BirthDay = new DateTime(1997, 9, 15)  },
    new Customer{ Name = "Name 2", Age = 35, Id = 2, BirthDay = new DateTime(1990, 1, 1) },
    new Customer{ Name = "Name 3", Age = 15, Id = 3, BirthDay = new DateTime(2000, 5, 1)  },
};

var filterService = new FilterService();
var filter = filterService.Filter<Customer>("(BirthDay le `1997-9-15`)");

var filteredList = list.Where(filter.Compile()).ToArray();

// Another way
var filteredList = list.Filter("(BirthDay le `1997-9-15`)");

// Supported for IQueryable
var filteredList = list.AsQueryable.Filter("(BirthDay le `1997-9-15`)").ToList();

Supported Operator

  • Equal: (Name eq `Phuc Nguyen`)
  • Not Equal: (Name ne `Phuc Nguyen`)
  • Greater than: (Age gt `25`)
  • Greater than and equal (Age ge `25`)
  • Less than: (Age lt `25`)
  • Less than and equal (Age le `25`)
  • Contains: (Name contains `P`)
  • StartsWith: (Name StartsWith `P`)
  • In: (Age in `[25, 26]`)
  • And: ( (Age eq `25`) & (Name eq `Phuc`))
  • Or: ( (Age eq `25`) | (Name eq `Phuc`))
  • Not: !(Name eq `Phuc Nguyen`)

Custom Filter

You can create a custom filter syntax by implement IFilterDirective interface

Example

using System.Linq.Expressions;

namespace FilterExpression.Directive
{
    internal class EqualDirective : IFilterDirective
    {
        public string FilterSyntax
        {
            get
            {
                return "eq"; // Syntax will be used in FilterExpression string
            }
        }

        // Build expression tree here 
        public Expression GenerateExpression(ref MemberExpression property, ConstantExpression value)
        {
            return Expression.Equal(property, value);
        }
    }
}
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. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

  • net8.0

    • No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.0.0 288 6/10/2025