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The NJection project provides a way to inject .NET code at runtime using configuration files.
NJection uses new capabilities of the System.Linq.Expressions namespace which comes with visual studio 2010 and .NET 4.0 Framework .

C# Example

var actionExpression = ExpressionBuilder.Traverse<Expression<Action<string>>>(filePath);
Action<string> action = actionExpression.Compile();
action("Hello World!");

Configuration Example

Here we defined a method call to WriteLine of the static class Console.

<?xml version="1.0" encoding="utf-8" ?>
  <expression type="Lambda" typeof="System.Action`1[System.String]">
    <expression type="Call" kind="Static" typeof="System.Console" methodName="WriteLine">
        <expression ref="valueParameter" />
      <expression type="Parameter" typeof="System.String" name="valueParameter" />

Last edited Sep 13, 2010 at 9:44 AM by sagi, version 28