急急急！无法将类型为“System.Object[]”的对象强制转换为类型“System.IConvertible”顶也给分！

C# code

      public void AsyncRefreshLogisticsCompany(int shopId)        {            IsBusy = true;            ThreadPool.QueueUserWorkItem(RefreshLogisticsCompany,new object[]{shopId});        }        /// <summary>        /// 获取物流公司        /// </summary>        /// <param name="state"></param>        private void RefreshLogisticsCompany(object state)        {            var result = new SunyuResult();            try            {               [color=#FF0000] var shopId = Convert.ToInt32(state);----------在这里抛出的异常[/color]                var shop = ShopDB.GetShopById(shopId);时间 2012/8/21 10:09:31 捕获异常 System.InvalidCastException: 无法将类型为“System.Object[]”的对象强制转换为类型“System.IConvertible”。   在 System.Convert.ToInt32(Object value)

[解决办法]
传入的是数组，因此

object[] paras = (object[])state;
var shopId = Convert.ToInt32(paras[0]);
[解决办法]
state是什么???

Convert.ToInt32(state.tostring());看看
[解决办法]
或者直接传入int不行吗？
public void AsyncRefreshLogisticsCompany(int shopId)
{
IsBusy = true;
ThreadPool.QueueUserWorkItem(RefreshLogisticsCompany,shopId);
}


private void RefreshLogisticsCompany(object state)
{
var result = new SunyuResult();
try
{
var shopId = Convert.ToInt32(state)