【小问题，大家帮帮忙，立即结贴】请教一个Unity配置文件的语法问题。

Question

<configuration>
<configSections>
    <section name="unity" type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection, Microsoft.Practices.Unity.Configuration"/>
</configSections>
<unity xmlns="http://schemas.microsoft.com/practices/2010/unity">
            <alias alias="IInterface" type="InterfaceNamespace.IInterface, InterfaceLibraryName" />
            <alias alias="Implementation" type="ImpNamespace.Implementation, ImpLibraryName" />
            <container name="default">
                <register type="IInterface" mapTo="Implementation" />  
            </container>
        </unity>
</configuration>假如IInterface对应有两个实现Implementation1和Implementation2时，配置文件该怎么写啊？<register type="IInterface" mapTo="Implementation1" name="imp1"/>  
<register type="IInterface" mapTo="Implementation2" name="imp2"/>  
这样是肯定不对的

Answer 1

<configuration>
    <configSections>
        <section name="unity" type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection, Microsoft.Practices.Unity.Configuration"/>
    </configSections>
    <unity xmlns="http://schemas.microsoft.com/practices/2010/unity">
        <alias alias="IInterface" type="InterfaceNamespace.IInterface, InterfaceLibraryName" />
        <alias alias="Implementation1" type="ImpNamespace.Implementation1, ImpLibraryName" />
        <alias alias="Implementation1" type="ImpNamespace.Implementation2, ImpLibraryName" />
        <container name="default">
            <register type="IInterface" mapTo="Implementation" name="Implementation1" />  
            <register type="IInterface" mapTo="Implementation" name="Implementation2" />
        </container>
    </unity>
</configuration>
List<IInterface> interfaces;public Class1(IUnityContainer container)
{
    interfaces = new List<IInterface>(container.ResolveAll<IInterface>());          
}刚问完就找到答案了。郁闷，我的50分啊！

Answer 2

再问个问题：Prism里不是提供了DelegateCommand<T>了吗？为什么我找不到它。
该引用的DLL应该都引用了呀。难道它不是在某个DLL里吗？Microsoft.Practices.Composite;
Microsoft.Practices.Composite.Presentation;
Microsoft.Practices.Composite.UnityExtensions;
Microsoft.Practices.ServiceLocation;
Microsoft.Practices.Unity;
Microsoft.Practices.Unity.Configuration;

Answer 3

TMD, 我怎么老是折腾半天，刚发完贴就自己找到答案呢！NND！faint!using Microsoft.Practices.Composite.Presentation.Commands;