switch（字符串）

Question

可以这么写吧？为什么进不了switch里面呢？我跟踪catalog得到的字符串就是这三个中的一个 啊，但就是都进不去
string catalog = Request.Params["Catalog"].ToString();
            string productID = Request.Params["ProductID"];
            //Response.Write(catalog);
            switch (catalog)
            {
                case "News":
                    Server.Transfer("NewsInfo.aspx");
                    break;
                case "Movie":
                    if (Request.Params["ProductID"] != null)
                    {
                        BindProductData(productID, catalog);
                    }
                    break;
                case "Music":
                    Server.Transfer("MusicInfo.aspx");
                    break;
                default:
                    break;
            }

Answer 1

请你仔细检查一下，确定前后有无空格以及大小写等！！
建议使用：
string product = Request.Params["ProductID"].Trim();

Answer 2

是不是有空格沒看出來？？加Trim 試一試

Answer 3

   switch (catalog.Trim())
            {
                case "News":
                    Server.Transfer("NewsInfo.aspx");
                    break;
                case "Movie":
                    if (Request.Params["ProductID"] != null)
                    {
                        BindProductData(productID, catalog);
                    }
                    break;
                case "Music":
                    Server.Transfer("MusicInfo.aspx");
                    break;
                default:
                    break;
            }