将泛型字典作为参数传递给需要IDictionary的方法可以吗

AssemblyInstaller.Install需要System.Collections.IDictionary。

例如

using System.Collections.Generic;
using System.Configuration.Install;
using System.Reflection;
using AssemblyWithInstaller;

namespace InstallerDemo
{
    class InstallerDemo
    {
        static void Main(string[] args)
        {
            var savedState = new Dictionary<object, object>();
            // i.e. as opposed to something that implements IDictionary:
            //var savedState = new System.Collections.Hashtable()
            var assembly = Assembly.GetAssembly(typeof (MyInstaller));
            var ai = new AssemblyInstaller(assembly, new[] {"/LogFile=install.log"});
            ai.Install(savedState);
            ai.Commit(savedState);
        }
    }
}

此外,编译器对此贴花没有问题:

var savedState = new Dictionary<string, object>();

但是,如果有人使用字符串以外的东西作为键,在运行时会发生什么不好的事情吗?

使现代化

var savedState=新字典<字符串,对象>();

void IDictionary.Add(object key, object value)
{
    Dictionary<TKey, TValue>.VerifyKey(key);
    Dictionary<TKey, TValue>.VerifyValueType(value);
    this.Add((TKey) key, (TValue) value);
}

…因此,在验证键时,如果键的类型与声明泛型字典的特定专门化时使用的类型不匹配(同样,对于值的类型),它将引发异常:

private static void VerifyKey(object key)
{
    if (key == null)
    {
        ThrowHelper.ThrowArgumentNullException(ExceptionArgument.key);
    }
    if (!(key is TKey))
    {
        ThrowHelper.ThrowWrongKeyTypeArgumentException(key, typeof(TKey));
    }
}