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Dynamic Code Generation Using CodeDOM

, 1 Jul 2007 Ms-PL
This article explains how CodeDOM can be used to generate code dynamcially and build it using dynamic code compilation. It also explains how to apply custom attributes.
DynamicCodeGeneration_src
Base
Base
bin
Debug
obj
Debug
Refactor
DynamicCodeGeneration.Base.dll
TempPE
Properties
CodeGenerator
bin
Debug
Derived.dll
DerivedAssembly.dll
DynamicCodeGeneration.CodeGenerator.vshost.exe
obj
Debug
Refactor
TempPE
Properties.Resources.Designer.cs.dll
Properties
CustomAttributes
DynamicCodeGeneration.CustomAttributes
bin
Debug
obj
Debug
Refactor
DynamicCodeGeneration.CustomAttributes.dll
TempPE
Properties
    using System;
using System.Threading;
using System.IO;
using System.Text;
using System.Drawing;
using System.CodeDom;
using System.Windows.Forms;
using System.ComponentModel;
using System.CodeDom.Compiler;
using System.Collections.Generic;

using Microsoft.CSharp;

namespace DynamicCodeGeneration.CodeGenerator
{
    public partial class UI : Form
    {
        public UI()
        {
            InitializeComponent();
        }

        private void Do_Click(object sender, EventArgs e)
        {
            try
            {
                if (this.CSharp.Checked)
                {
                    GenerateAssembly(AssemblyGenerationMode.CSharp);
                }
                else
                {
                    GenerateAssembly(AssemblyGenerationMode.IL);
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
        }

        private void GenerateAssembly(AssemblyGenerationMode mode)
        {
            IGenerator generator = null;
            switch(mode)
            {
                case AssemblyGenerationMode.CSharp:
                    generator = new CSharpGenerator();
                    break;
                case AssemblyGenerationMode.IL:
                    generator = new MSILGenerator();
                    break;
            }
            this.AssemblyLocation.Text = generator.GenerateAssembly(this.AssemblyAuthor.Text, this.ClassAuthor.Text, this.MethodAuthor.Text);
            this.GeneratedCode.Text = generator.Code;
        }
    }

    enum AssemblyGenerationMode
    {
        CSharp = 0,
        IL = 1
    }
}

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License

This article, along with any associated source code and files, is licensed under The Microsoft Public License (Ms-PL)

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About the Author

Piyush S Bhatnagar
Web Developer
United States United States
I work with Proteans Software Solutions. Interests include software architecture, design patterns, agile, scrum development, automated acceptance testing, books, music, travel, movies...

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