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ASP.NET程序中常用的三十三种代码(2)
ASP.NET程序中常用的三十三种代码(2) 6%z`)d 出处 uyvs kz\ p?KCVvx$ 6.表格超连接列传递参数 R3cG<MjmK hAYQ6g$A <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’ !zl/0o <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ /> ~v,!n/(' 7.表格点击改变颜色 ?~]>H A: W|)(|W if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) 6l=M;B7:i { vatx+) e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’; CVi<~7Am\ this.style.color=’buttontext’;this.style.cursor=’default’;"); )
+*@AME } o(BYT9|.kw 写在DataGrid的_ItemDataBound里 b<48#Qy~l '$lw[1 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) "P9wT)J_ { fdvi}SS8 e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
T`j this.style.color=’buttontext’;this.style.cursor=’default’;"); ,[+ZjAyG}# e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;"); 48W:4B'l9 } (}~ 1{C@ `7+tPbjs 8.关于日期格式 t"4Rn<- =r=
^bNO 日期格式设定 D}3cW2!9 &L2`L) DataFormatString="{0:yyyy-MM-dd}" 9p!d Q x 我觉得应该在itembound事件中 (2&K(1.Y JB: mbH e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd")) K.c6Rg 9.获取错误信息并到指定页面 KH
iYV +X4ttv 不要使用Response.Redirect,而应该使用Server.Transfer ]&; G\9$y
9.]Cy8 e.g _~(MA-l AF07KA# // in global.asax %t(, *; protected void Application_Error(Object sender, EventArgs e) { $/-wgyP3m+ if (Server.GetLastError() is HttpUnhandledException) GNj/jU<o! Server.Transfer("MyErrorPage.aspx"); 1L(Nfkh ACMpm~C8Gu //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :) Yn?2,^?N } @/Wty@PU Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理 3L\s8O
p>w~T#17 10.清空Cookie Ve')LY< 7m@^=w Cookie.Expires=[DateTime]; (D+{0 / Response.Cookies("UserName").Expires = 0 Dq_{O 11.自定义异常处理 [ a65VR~J oVxV,oH( //自定义异常处理类 QL|:(QM using System; kcZ;SYosj using System.Diagnostics; :)3$&QdHT Dk.9&9mz namespace MyAppException 'AlSq:g
Z { oW\7q{l2
) /// <summary> V.G9J!?<P /// 从系统异常类ApplicationException继承的应用程序异常处理类。 emDvy2uA# /// 自动将异常内容记录到Windows NT/2000的应用程序日志 qS[p|*BL /// </summary> -EX3'
[*' public class AppException:System.ApplicationException zI*/u)48 { ztxQv5=:, public AppException() 7>e~i, { _bV=G#qKK if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。"); J\8l%4q3 } Y.hH
fSp x /Ky:
Ky public AppException(string message) p?gLW/n { Exo`Z`m`U LogEvent(message); Q)|LiCR, } 0 VgnN Q*J ~wuE2 public AppException(string message,Exception innerException) YKS'#F2 { 6+d"3-R. LogEvent(message); ;[\2/$- if (innerException != null) &CP@]
pi9L { 8`*9jr LogEvent(innerException.Message); ~q%9zO' } )p_LkX( } T_B.p*\BM D]`B;aE>A* //日志记录类 *B~:L"N using System; !'t
2 using System.Configuration; 9@EnmtR using System.Diagnostics; J?ZVzKTb>} using System.IO; &,kB7r" using System.Text; +Y^F>/ 4=Y using System.Threading; "RX5] eJc\ 1? hd namespace MyEventLog C>;8`6_!gU { #i=^WN<V /// <summary> T S8E9#1a /// 事件日志记录类,提供事件日志记录支持 ;=
@-j@? /// <remarks> Id
7 /// 定义了4个日志记录方法 (error, warning, info, trace) d_qVk4h\ /// </remarks> Q&'Nr3H#tZ /// </summary> "J:NW_U public class ApplicationLog M!DoR6 { T.dO0$,Q@$ /// <summary> ~{!!=@6 /// 将错误信息记录到Win2000/NT事件日志中 uM<+2S /// <param name="message">需要记录的文本信息</param>
fy4JW,c /// </summary> =YsTF T public static void WriteError(String message) 54j
$A { z2zp c^i WriteLog(TraceLevel.Error, message); >c>ar>4xF } vt=S0X^$yc DNO%J^ /// <summary> FMr$cKvE]W /// 将警告信息记录到Win2000/NT事件日志中 |
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fPd /// <param name="message">需要记录的文本信息</param> ;9sVWJJCw /// </summary> MT g Eq public static void WriteWarning(String message) $&C%C\(>D { ]qRz!D%@^ WriteLog(TraceLevel.Warning, message); &!MKqJ@t } Q:|E H9[.#+ln /// <summary> ']Y:gmM" /// 将提示信息记录到Win2000/NT事件日志中 KJSy7F /// <param name="message">需要记录的文本信息</param> <O&s 'A[ /// </summary> @gk[sQ\O public static void WriteInfo(String message) 014!~c { ~!u94_: WriteLog(TraceLevel.Info, message); i:To8kdO } D=]P9XDvb. /// <summary> Yuck]?#0 /// 将跟踪信息记录到Win2000/NT事件日志中 #=m5*}= /// <param name="message">需要记录的文本信息</param> #+=afJ /// </summary> GM~jR-FZ public static void WriteTrace(String message) g5`YUr+3?h { C5FtJquGN) WriteLog(TraceLevel.Verbose, message); -K4RQ{=>UZ } I(|{/{P, )^AO?M
W /// <summary> ?:c hAN@ /// 格式化记录到事件日志的文本信息格式 eP8wTStC /// <param name="ex">需要格式化的异常对象</param> ,0O!w>u_]J /// <param name="catchInfo">异常信息标题字符串.</param> n
$9!G /// <retvalue> F u)7J4Z /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para> `!BUd /// </retvalue> [a2/`ywdV /// </summary> +=v|kd public static String FormatException(Exception ex, String catchInfo) ~V4|DN[I { -!"8j"pA: StringBuilder strBuilder = new StringBuilder(); e5Z\v0 if (catchInfo != String.Empty) ;#*mB` { BL7%MvDQ strBuilder.Append(catchInfo).Append("\r\n"); ?0F#\0 } v~SN2,h strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace); Iq9+ return strBuilder.ToString(); e3.TGv7= } IdM;N WO^h\#^n /// <summary> 1E(pJu'K /// 实际事件日志写入方法 K4~dEZ /// <param name="level">要记录信息的级别(error,warning,info,trace).</param> .%o:kq@B /// <param name="messageText">要记录的文本.</param> BF
Y~::<b /// </summary> 5|Uub, private static void WriteLog(TraceLevel level, String messageText) yTk9+ > { B{Rig5Sc try rW6LMkt72 { @-wAR=k7 EventLogEntryType LogEntryType; a&&EjI switch (level) DwI)?a_+ { ezL*YM8?@ case TraceLevel.Error: _=rXaTp LogEntryType = EventLogEntryType.Error; E3'6lv' break; X6PfOep case TraceLevel.Warning: W[b/.u5z: LogEntryType = EventLogEntryType.Warning; )K}b,X`($ break; i''dY!2 case TraceLevel.Info: 8<P.>u LogEntryType = EventLogEntryType.Information; zMDR1/|D break; Z"P{/~HG case TraceLevel.Verbose: {KR/TQ?A LogEntryType = EventLogEntryType.SuccessAudit; 4VK5TWg break; MtS$ovg? default: +ISB"a LogEntryType = EventLogEntryType.SuccessAudit; CnO$xE|{ break; Od
"-w<' } 9,,1\0-T* j,Mp["X& EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName ); Drg'RR>< //写入事件日志 -WEi
Y eventLog.WriteEntry(messageText, LogEntryType); lp4sO#>` %e_WO,R } F
M`pPx catch {} //忽略任何异常 $UKDXQF" } IUzRE?Kzf } //class ApplicationLog E#T'=f[r~ }
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[楼 主]
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Posted: 2006-04-03 13:58 |
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