Repeater对数据进行格式化处理

<%# int.Parse(Eval("price").ToString()) > 3600 ? "#" : Eval("price").ToString()%>

public string ReturnStr(string str)
    {
        if (string.IsNullOrEmpty(str))
            return "";
        if (str == "Iphone4s")
            return "Iphon5";
        else
            return str;
    }
<%# ReturnStr(Eval("productName").ToString())%>