为什么我服务器运行了.NET后总是报这个错

事件类型: 警告
事件来源: ASP.NET 2.0.50727.0
事件种类: Web Event
事件 ID: 1309
日期: 2009-5-21
用户: N/A
计算机:
描述:
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 2009-5-21 7:13:44
Event time (UTC): 2009-5-20 23:13:44
Event ID: 545686376b584690b9d2fdce87ce1267
Event sequence: 21
Event occurrence: 2
Event detail code: 0

Application information:
    Application domain: /LM/W3SVC/236515084/Root-1-128873284760781250
    Trust level: Full
    Application Virtual Path: /
    Application Path: E:\Inetpub\wwwroot\pdll\
    Machine name: USKY-E13393F548

Process information:
    Process ID: 4852
    Process name: w3wp.exe
    Account name: NT AUTHORITY\NETWORK SERVICE

Exception information:
    Exception type: ArgumentNullException
    Exception message: Value cannot be null.
Parameter name: String

Request information:
    Request URL: http://www.pdll.com.cn/read_news.aspx?ID=535
    Request path: /read_news.aspx
    User host address: 203.208.60.36
    User:
    Is authenticated: False
    Authentication Type:
    Thread account name: NT AUTHORITY\NETWORK SERVICE

Thread information:
    Thread ID: 1
    Thread account name: NT AUTHORITY\NETWORK SERVICE
    Is impersonating: False
    Stack trace:    at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
   at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
   at read_news.ShowAll(Int32 id)
   at read_news.BindData()
   at read_news.Page_Load(Object sender, EventArgs e)
   at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e)
   at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
--------------------编程问答-------------------- --------------------编程问答-------------------- 关注一下 --------------------编程问答-------------------- 这个我也遇到过。不要紧的。只要能运行就行。 --------------------编程问答-------------------- 运行倒可以运行就是网站打开很慢 --------------------编程问答-------------------- 不清楚`哈哈aa~ !~ --------------------编程问答-------------------- 不要紧的！ --------------------编程问答-------------------- 没有设置值。代码错误
检查System.Number.ParseInt32 --------------------编程问答-------------------- 没遇到过...... --------------------编程问答-------------------- up --------------------编程问答-------------------- 关注

补充：.NET技术 ,  ASP.NET