Overview

An open source, .NET Standard 1.1 library implementation of the Command Pattern - including reversible commands.

Below are the main features of the library. See the linked code for details.

Please contact me if you have any questions.

Getting Started

NuGet Package Installation

To install the ChannelAdam.Commands NuGet package run the following command in the Package Manager Console:

1PM> Install-Package ChannelAdam.Commands

Usage

An example of the ReversibleCommandManager, using the ExecuteSetPropertyCommand and UndoPreviousCommand methods:

 1var testObject = new ClassWithProperty
 2{
 3    MyProperty = 1
 4};
 5
 6var commandManager = new ReversibleCommandManager();
 7
 8commandManager.ExecuteSetPropertyCommand(testObject, p => p.MyProperty, 100);
 9commandManager.ExecuteSetPropertyCommand(testObject, p => p.MyProperty, 200);
10
11commandManager.UndoPreviousCommand();
12// MyProperty is now back to 100

Reference

Command Action

A Command Action has an Execute method with a void return parameter.

• Command Action interface
• Command Action base class

Command Function

A Command Function has an Execute method with a specified return parameter.

• Command Function interface
• Command Function base class

Reversible Commands

Need to execute some commands and be able to undo them? This Reversible Command implementation is for you!

Use the Reversible Command Manager to manage the stack of commands that can be reversed.

• Reversible Command Action interface
• Reversible Command Action base class
• Reversible Command Function interface
• Reversible Command Function base class

Set Property - Command Implementation

A command implementation for setting a property on an object.

• Set Property Command
• Reversible Set Property Command