在StructureMap中有条件地获取实例

你应该去看看报纸 Conditional Object construction post

http://codebetter.com/blogs/jeremy.miller/archive/2009/01/18/conditional-object-construction-in-structuremap-i-e-fun-with-lambdas.aspx

下面编辑

StructureMap用户列表中有几个关于执行条件构造的问题(即,如果是此条件,则返回此对象,否则返回此其他对象)。为了满足这种明显的需求,StructureMap 2.5.2引入了新的ConditionalInstance,允许用户基于谓词布尔测试有效地切换活动实例。下面是一个使用InstanceExpression的新条件()语法的快速示例:

var container = new Container(x =>
{
    x.InstanceOf<Rule>().Is.Conditional(o =>
    {
        o.If(c => false).ThenIt.Is.OfConcreteType<ARule>();
        o.If(c => true).ThenIt.IsThis(GREEN);
        o.TheDefault.IsThis(RED);
    }).WithName("conditional");
});

更多信息请访问wayback机器 https://web.archive.org/web/20090506031557/http://codebetter.com/blogs/jeremy.miller/archive/2009/01/18/conditional-object-construction-in-structuremap-i-e-fun-with-lambdas.aspx