6.表格超串連列傳遞參數
<asp:HyperLinkColumn Target="_blank" headertext="ID號" DataTextField="id" NavigateUrl="aaa.aspx?id='
<%# DataBinder.Eval(Container.DataItem, "資料欄位1")%>' & name='<%# DataBinder.Eval(Container.DataItem, "資料欄位2")%>' />
7.表格點擊改變顏色
if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
{
e.Item.Attributes.Add("onclick","this.style.backgroundColor='#99cc00';
this.style.color='buttontext';this.style.cursor='default';");
}
寫在DataGrid的_ItemDataBound裡
if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
{
e.Item.Attributes.Add("onmouseover","this.style.backgroundColor='#99cc00';
this.style.color='buttontext';this.style.cursor='default';");
e.Item.Attributes.Add("onmouseout","this.style.backgroundColor='';this.style.color='';");
}
8.關於日期格式
日期格式設定
DataFormatString="{0:yyyy-MM-dd}"
我覺得應該在itembound事件中
e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
9.擷取錯誤資訊併到指定頁面
不要使用Response.Redirect,而應該使用Server.Transfer
e.g
// in global.asax
protected void Application_Error(Object sender, EventArgs e) {
if (Server.GetLastError() is HttpUnhandledException)
Server.Transfer("MyErrorPage.aspx");
//其餘的非HttpUnhandledException異常交給ASP.NET自己處理就okay了 :)
}
Redirect會導致post-back的產生從而丟失了錯誤資訊,所以頁面導嚮應該直接在伺服器端執行,這樣就可以在錯誤處理頁面得到出錯資訊並進行相應的處理
10.清空Cookie
Cookie.Expires=[DateTime];
Response.Cookies("UserName").Expires = 0
11.自訂異常處理
//自訂異常處理類
using System;
using System.Diagnostics;
namespace MyAppException
{
/// <summary>
/// 從系統異常類ApplicationException繼承的應用程式異常處理類。
/// 自動將異常內容記錄到Windows NT/2000的應用程式記錄檔
/// </summary>
public class AppException:System.ApplicationException
{
public AppException()
{
if (ApplicationConfiguration.EventLogEnabled)LogEvent("出現一個未知錯誤。");
}
public AppException(string message)
{
LogEvent(message);
}
public AppException(string message,Exception innerException)
{
LogEvent(message);
if (innerException != null)
{
LogEvent(innerException.Message);
}
}
//日誌記錄類
using System;
using System.Configuration;
using System.Diagnostics;
using System.IO;
using System.Text;
using System.Threading;
namespace MyEventLog
{
/// <summary>
/// 事件記錄記錄類,提供事件記錄記錄支援
/// <remarks>
/// 定義了4個日誌記錄方法 (error, warning, info, trace)
/// </remarks>
/// </summary>
public class ApplicationLog
{
/// <summary>
/// 將錯誤資訊記錄到Win2000/NT事件記錄中
/// <param name="message">需要記錄的文本資訊</param>
/// </summary>
public static void WriteError(String message)
{
WriteLog(TraceLevel.Error, message);
}
/// <summary>
/// 將警告資訊記錄到Win2000/NT事件記錄中
/// <param name="message">需要記錄的文本資訊</param>
/// </summary>
public static void WriteWarning(String message)
{
WriteLog(TraceLevel.Warning, message);
}
/// <summary>
/// 將提示資訊記錄到Win2000/NT事件記錄中
/// <param name="message">需要記錄的文本資訊</param>
/// </summary>
public static void WriteInfo(String message)
{
WriteLog(TraceLevel.Info, message);
}
/// <summary>
/// 將跟蹤資訊記錄到Win2000/NT事件記錄中
/// <param name="message">需要記錄的文本資訊</param>
/// </summary>
public static void WriteTrace(String message)
{
WriteLog(TraceLevel.Verbose, message);
}
/// <summary>
/// 格式化記錄到事件記錄的文本資訊格式
/// <param name="ex">需要格式化的異常對象</param>
/// <param name="catchInfo">異常資訊標題字串.</param>
/// <retvalue>
/// <para>格式後的異常資訊字串,包括異常內容和跟蹤堆棧.</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>
/// 實際事件記錄寫入方法
/// <param name="level">要記錄資訊的層級(error,warning,info,trace).</param>
/// <param name="messageText">要記錄的文本.</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 );
//寫入事件記錄
eventLog.WriteEntry(messageText, LogEntryType);
}
catch {} //忽略任何異常
}
} //class ApplicationLog
}