.net网站应用程序总是报错....

Question

错误信息: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: 2009-7-23
事件: 15:52:22
用户: N/A
计算机: SERVER4
描述:
Event code: 3005 
Event message: An unhandled exception has occurred. 
Event time: 2009-7-23 15:52:22 
Event time (UTC): 2009-7-23 7:52:22 
Event ID: 877570c5222546ffbc4d392d09620d51 
Event sequence: 25783 
Event occurrence: 4 
Event detail code: 0 
 
Application information: 
    Application domain: /LM/W3SVC/1/ROOT-1-128927987459360000 
    Trust level: Full 
    Application Virtual Path: / 
    Application Path: D:\www\ 
    Machine name: SERVER4 
 
Process information: 
    Process ID: 988 
    Process name: w3wp.exe 
    Account name: NT AUTHORITY\NETWORK SERVICE 
 
Exception information: 
    Exception type: MySqlException 
    Exception message: Writing to the stream failed. 
 
Request information: 
    Request URL: http://www.****.com/Default.aspx 
    Request path: /Default.aspx 
    User host address: 113.68.36.144 
    User:  
    Is authenticated: False 
    Authentication Type:  
    Thread account name: NT AUTHORITY\NETWORK SERVICE 
 
Thread information: 
    Thread ID: 54 
    Thread account name: NT AUTHORITY\NETWORK SERVICE 
    Is impersonating: False 
    Stack trace:    at MySql.Data.MySqlClient.MySqlStream.Flush()
   at MySql.Data.MySqlClient.NativeDriver.ExecuteCommand(DBCmd cmd, Byte[] bytes, Int32 length)
   at MySql.Data.MySqlClient.NativeDriver.SetDatabase(String dbName)
   at MySql.Data.MySqlClient.MySqlConnection.ChangeDatabase(String databaseName)
   at MySql.Data.MySqlClient.MySqlConnection.Open()
   at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
   at System.Data.Common.DbDataAdapter.Fill(DataTable[] dataTables, Int32 startRecord, Int32 maxRecords, IDbCommand command, CommandBehavior behavior)
   at System.Data.Common.DbDataAdapter.Fill(DataTable dataTable)
   at WebApp.Data.ArticleclassTableAdapters.cms_articleclassTableAdapter.FillByArticleClassID(cms_articleclassDataTable dataTable, Int32 ArticleClassID) in E:\www\WebApp\Data\Articleclass.Designer.cs:line 1417
   at WebApp.wuc_Default_ArticleBysingle.getdatabind() in E:\www\WebApp\wuc_Default_ArticleBysingle.ascx.cs:line 64
   at WebApp.wuc_Default_ArticleBysingle.Page_Load(Object sender, EventArgs e) in E:\www\WebApp\wuc_Default_ArticleBysingle.ascx.cs:line 35
   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.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
 
 
Custom event details: 有关更多信息，请参阅在 http://go.microsoft.com/fwlink/events.asp 的帮助和支持中心。基本上没一分钟就报一次错...我的www文件在D盘 不在E盘 怎么报到E盘去了具体怎么解决呢

Answer 1

wuc_Default_ArticleBysingle.ascx.cs的源码是：
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.ComponentModel;namespace WebApp
{
    public partial class wuc_Default_ArticleBysingle : System.Web.UI.UserControl
    {
        [Bindable(true)]
        [DefaultValue(0)]
        [Description("所要的显示的ArticleClassID")]
        [Localizable(true)]
        public int ArticleClassID
        { get; set; }        [Bindable(true)]
        [Localizable(true)]
        [Description("显示个数")]
        [DefaultValue(2)]
        public int ShowCount
        { get; set; }        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                getdatabind();
            }
        }        private void getdatabind()
        {
            if (string.IsNullOrEmpty(ArticleClassID.ToString()))
                ArticleClassID = 0;
            if (ShowCount == 0)
                ShowCount = 2;            string sqlCmd = string.Format("select * from cms_article where ArticleClassID={0} and bUse=1 order by ArticleID DESC limit {1}", ArticleClassID, ShowCount);            using (MySql.Data.MySqlClient.MySqlConnection conn = new SQl.dbBase().getConnect())
            {
                if (conn.State != ConnectionState.Open)
                    conn.Open();                using (MySql.Data.MySqlClient.MySqlDataAdapter ada = new MySql.Data.MySqlClient.MySqlDataAdapter(sqlCmd, conn))
                {
                    DataTable dt = new DataTable();
                    ada.Fill(dt);                    if (dt.Rows.Count > 0)
                    {
                        int _id = (int)dt.Rows[0]["ArticleClassID"];   //文章分类ID
                        using (Data.ArticleclassTableAdapters.cms_articleclassTableAdapter adaArticleclass = new WebApp.Data.ArticleclassTableAdapters.cms_articleclassTableAdapter())
                        {
                            Data.Articleclass.cms_articleclassDataTable dtArticleclass = new WebApp.Data.Articleclass.cms_articleclassDataTable();
                            adaArticleclass.FillByArticleClassID(dtArticleclass, _id);                            if (dtArticleclass.Count > 0)
                            {
                                ltlDefault_Article.Text = dtArticleclass[0].ArticleClassName;
                                a_AritcleClass.HRef = string.Format("articleClass.aspx?ClassID={0}", dtArticleclass[0].ArticleClassID);
                            }
                        }
                    }                    rptDefault_Article.DataSource = dt;
                    rptDefault_Article.DataBind();
                }
            }
        }
    }
}

Answer 2

private void getdatabind() 
{
    try
    {
         
    }
    catch(Exception ex)
    {
      
    }
}
用try catch 处理下异常吧

Answer 3

很可能查询sql时出错了。