Masterly.BusinessRules.Expressions 3.0.0

.NET Standard 2.1 This package targets .NET Standard 2.1. The package is compatible with this framework or higher. 
dotnet add package Masterly.BusinessRules.Expressions --version 3.0.0
                    


                    

                
NuGet\Install-Package Masterly.BusinessRules.Expressions -Version 3.0.0
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="Masterly.BusinessRules.Expressions" Version="3.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Masterly.BusinessRules.Expressions" Version="3.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Masterly.BusinessRules.Expressions" />
                    


                            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 Masterly.BusinessRules.Expressions --version 3.0.0
                    


                    

                
#r "nuget: Masterly.BusinessRules.Expressions, 3.0.0"
#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 Masterly.BusinessRules.Expressions@3.0.0
#: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=Masterly.BusinessRules.Expressions&version=3.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Masterly.BusinessRules.Expressions&version=3.0.0
                    


                            Install as a Cake Tool

Masterly.BusinessRules.Expressions

Write a business rule's condition as text, such as amount > @maxOrderAmount, and explain every verdict with the values that produced it. Use it when conditions live in configuration, a database or an admin screen.

This is a companion package of Masterly.BusinessRules, a composable business-rule engine for .NET.

NuGet

Install

dotnet add package Masterly.BusinessRules.Expressions
  • Target framework: netstandard2.1 (.NET Core 3.0+, .NET 5+)
  • Dependencies: Masterly.BusinessRules only

Example

using Masterly.BusinessRules;
using Masterly.BusinessRules.Expressions;

// Parse once and reuse: a RuleExpression is immutable, and bad text throws here, not at evaluation.
RuleExpression expression = RuleExpression.Parse("amount > maxOrderAmount");
ExpressionBusinessRule rule = expression.ToRule("ORDER.TOO_LARGE", "Order exceeds the limit.");

BusinessRuleContext context = new BusinessRuleContext();
context.Set("amount", 12_000m);
context.Set("maxOrderAmount", 10_000m);

bool isBroken = rule.IsBroken(context);   // true: the text describes when the rule is broken
rule.Check(context);                      // throws BusinessRuleValidationException

An expression rule always needs a context. It works everywhere other rules do: composition, groups, decorators and the batch checkers. BusinessRuleBuilder.Create(code).WhenExpression(text) gives you the builder's name, category, tags, details and declared @parameters on top.

Documentation

Expression syntax, comparisons, parameters, safety limits and explanations are covered in the full documentation: https://github.com/a7mdfre7at/Masterly.BusinessRules#readme

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 netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.1 is compatible. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen 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)
Learn more about Target Frameworks and .NET Standard.

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
3.0.0 44 10/28/2026

Release notes for version 3.0.0: https://github.com/a7mdfre7at/Masterly.BusinessRules/blob/master/CHANGELOG.md