9.获取错误信息并到指定页面
不要使用Response.Redirect,而应该使用Server.Transfer
e.g
// in global.asax protected void Application_Error(Object sender, EventArgs e) { if (Server.GetLastError() is HttpUnhandledException)
Server.Transfer("MyErrorPage.aspx");
//其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
}
Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
10.清空Cookie
Cookie.Expires=[DateTime];Response.Cookies("UserName")。Expires = 0
11.自定义异常处理
//自定义异常处理类using System;using System.Diagnostics;
namespace MyAppException { /// <summary>/// 从系统异常类ApplicationException继承的应用程序异常处理类。
/// 自动将异常内容记录到Windows NT/2000的应用程序日志/// </summary>public class AppException:System.ApplicationException { public AppException()
{ if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");}
public AppException(string message)
{ LogEvent(message);}
public AppException(string message,Exception innerException)
{ LogEvent(message);if (innerException != null)
{ LogEvent(innerException.Message);}
//日志记录类using System;using System.Configuration;using System.Diagnostics;using System.IO;using System.Text;using System.Threading;
namespace MyEventLog { /// <summary>/// 事件日志记录类,提供事件日志记录支持/// <remarks>/// 定义了4个日志记录方法 (error, warning, info, trace)
/// </remarks>/// </summary>public class ApplicationLog { /// <summary>/// 将错误信息记录到Win2000/NT事件日志中/// <param name="message">需要记录的文本信息</param>/// </summary>public static void WriteError(String message)
{ WriteLog(TraceLevel.Error, message);}
/// <summary>/// 将警告信息记录到Win2000/NT事件日志中/// <param name="message">需要记录的文本信息</param>/// </summary>public static void WriteWarning(String message)
{ WriteLog(TraceLevel.Warning, message);}
/// <summary>/// 将提示信息记录到Win2000/NT事件日志中/// <param name="message">需要记录的文本信息</param>/// </summary>public static void WriteInfo(String message)
{ WriteLog(TraceLevel.Info, message);} /// <summary>/// 将跟踪信息记录到Win2000/NT事件日志中/// <param name="message">需要记录的文本信息</param>/// </summary>public static void WriteTrace(String message)
{ WriteLog(TraceLevel.Verbose, message);}
/// <summary>/// 格式化记录到事件日志的文本信息格式/// <param name="ex">需要格式化的异常对象</param>/// <param name="catchInfo">异常信息标题字符串。</param>/// <retvalue>/// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈。</para>/// </retvalue>/// </summary>public static String FormatException(Exception ex, String catchInfo)
{ StringBuilder strBuilder = new StringBuilder();if (catchInfo != String.Empty)
{ strBuilder.Append(catchInfo)。Append("\r\n");} strBuilder.Append(ex.Message)。Append("\r\n")。Append(ex.StackTrace);return strBuilder.ToString();}
/// <summary>/// 实际事件日志写入方法/// <param name="level">要记录信息的级别(error,warning,info,trace)。</param>/// <param name="messageText">要记录的文本。</param>/// </summary>private static void WriteLog(TraceLevel level, String messageText)
{ try { EventLogEntryType LogEntryType;switch (level)
{ case TraceLevel.Error:LogEntryType = EventLogEntryType.Error;break;case TraceLevel.Warning:LogEntryType = EventLogEntryType.Warning;break;case TraceLevel.Info:LogEntryType = EventLogEntryType.Information;break;case TraceLevel.Verbose:LogEntryType = EventLogEntryType.SuccessAudit;break;default:LogEntryType = EventLogEntryType.SuccessAudit;break;}
EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );//写入事件日志eventLog.WriteEntry(messageText, LogEntryType);
} catch {} //忽略任何异常} } //class ApplicationLog }
12.Panel 横向滚动,纵向自动扩展
<asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
13.回车转换成Tab
<script language="javascript" for="document" event="onkeydown">if(event.keyCode==13 && event.srcElement.type!=‘button’ && event.srcElement.type!=‘submit’ && event.srcElement.type!=‘reset’ && event.srcElement.type!=‘’&& event.srcElement.type!=‘textarea’);event.keyCode=9;</script>
onkeydown="if(event.keyCode==13) event.keyCode=9"
14.DataGrid超级连接列
DataNavigateUrlField="字段名" DataNavigateUrlFormatString="http://xx/inc/delete.aspx?ID={0}"
15.DataGrid行随鼠标变色
private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{ if (e.Item.ItemType!=ListItemType.Header)
{ e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");}
16.模板列
<ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID"><ITEMTEMPLATE><ASP:LABEL text=‘<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" /></ITEMTEMPLATE></ASP:TEMPLATECOLUMN>
<ASP:TEMPLATECOLUMN headertext="选中"><HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE><ITEMTEMPLATE><ASP:CHECKBOX id="chkExport" runat="server" /></ITEMTEMPLATE><EDITITEMTEMPLATE><ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" /></EDITITEMTEMPLATE></ASP:TEMPLATECOLUMN>