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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)
e$Ksn_wEq 出处 J].Oxch&y 4!IuTPmr 6.表格超连接列传递参数 8K,X3a9 geme_ <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’ 'z$$ZEz!C <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ /> =Hg!@5]H 7.表格点击改变颜色 (BEe^]f J$#T_4
) if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) 1Gsh%0r3 { r
fqwxr45h e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’; cnu&!>8V this.style.color=’buttontext’;this.style.cursor=’default’;"); 'H530Y\ } 2:38CdkYp 写在DataGrid的_ItemDataBound里 B[N]=V }J#HIE\RG if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) "^#O7.oVi+ { 8,U
~ p<Gz e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’; t%:7W[_s this.style.color=’buttontext’;this.style.cursor=’default’;"); 3"h*L8No e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;"); ,X|Oe@/ } "*bLFORkq' UD-+BUV 8.关于日期格式 w!m4>w L1SX2F8 日期格式设定 k4']q U1YqyG8 DataFormatString="{0:yyyy-MM-dd}" 'gY?=,dF> 我觉得应该在itembound事件中 &]TniQH ?/.])'&b e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd")) A?MM9Y}K 9.获取错误信息并到指定页面 [j6]!p]S$ HhynU/36 不要使用Response.Redirect,而应该使用Server.Transfer <Y`(J# e|tx`yA e.g E-WpsNJ)X x// uF // in global.asax e)}E&D;${ protected void Application_Error(Object sender, EventArgs e) { ^]o
H}lwO if (Server.GetLastError() is HttpUnhandledException) Mi.#x_ Server.Transfer("MyErrorPage.aspx"); k+"]; ]WMzWt:L //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :) LH54J;7Y } aj4ZS Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理 !$NK7- H^'%$F?Ss 10.清空Cookie Ry+?#P+ ;L$-_Z Cookie.Expires=[DateTime]; )xVf3l
pQ Response.Cookies("UserName").Expires = 0 ~C{:G;Iy0 11.自定义异常处理 ,#XXwm ^I fgqCX:SWz //自定义异常处理类 6"_pCkn;c< using System;
,hf W2} using System.Diagnostics; Ko&4{}/ GG%;~4#2 namespace MyAppException Gd|kAC
g { U`[viH>K /// <summary> U?dad}7 /// 从系统异常类ApplicationException继承的应用程序异常处理类。 jUD^]Qs /// 自动将异常内容记录到Windows NT/2000的应用程序日志 m$C1Ea-wnT /// </summary> 8GBKFNR8 public class AppException:System.ApplicationException #6a!OQj { @|cHDltH public AppException() ktPM66`b { }J?,?>Z if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。"); >NPK;Vu } HT/!+#W. i%!<9D~n public AppException(string message) q0q-Coh>
{ A3.I|/ LogEvent(message); xyo~p,(~t } j|8!gW Lios1|5 public AppException(string message,Exception innerException) 0,-]O= { @-K[@e/uwy LogEvent(message); %h(%M'm? if (innerException != null) :@5{*o { <o9i;[+H- LogEvent(innerException.Message); f?ycZ } y=pW+$k } \^0>h`[ Q_p&~PNy5 //日志记录类 /JRZ?/<1 using System; Id^q!4Th9 using System.Configuration; x0)=jp '
using System.Diagnostics; Jw=7eay$F using System.IO; VOC$Kqg; using System.Text; e}-fGtFx using System.Threading; y$nI?
:d *jQ$\|Y namespace MyEventLog Lj|wFV { U/PNEGuQ /// <summary> _'Jjt9@S /// 事件日志记录类,提供事件日志记录支持 b 1.S21 /// <remarks> $DfK}CT /// 定义了4个日志记录方法 (error, warning, info, trace) UrciCOQf /// </remarks> %m/lPL /// </summary> &?Erkc~# public class ApplicationLog 7xB]Z;: { ]v5/K /// <summary> F{QOu0$cA4 /// 将错误信息记录到Win2000/NT事件日志中 AH/^v;- /// <param name="message">需要记录的文本信息</param> *w.":\P] /// </summary> \"RCJadK public static void WriteError(String message) <z%**gP~G { lb9?Uc@ WriteLog(TraceLevel.Error, message); Q|+ a } Nz3+yxv1 OA6i/3 #8 /// <summary> >WZbbd- /// 将警告信息记录到Win2000/NT事件日志中 `peR,E
/// <param name="message">需要记录的文本信息</param> )M"NMUuU" /// </summary> V,VL?J\ public static void WriteWarning(String message) E0VAhN3G\ { {R63n WriteLog(TraceLevel.Warning, message); ;p~!('{P } S?`0,F Jb$G /// <summary> qHgtd+
I /// 将提示信息记录到Win2000/NT事件日志中 <)LR /// <param name="message">需要记录的文本信息</param> JAjiG^] /// </summary> 3mYW] public static void WriteInfo(String message) 'ParMT { y2?9pVLa\y WriteLog(TraceLevel.Info, message); 6~ y' } [/*;}NUv /// <summary> k kD#Bb /// 将跟踪信息记录到Win2000/NT事件日志中 Sn'!Nq> /// <param name="message">需要记录的文本信息</param> A)!W VT&2A /// </summary> j>\rs|^O public static void WriteTrace(String message) A9SL|9Q { ami>Pp WriteLog(TraceLevel.Verbose, message); g8'8"9:xC } DFZ@q=ZT
):tv V /// <summary> Jia@HrLR /// 格式化记录到事件日志的文本信息格式 k
k<%VKC /// <param name="ex">需要格式化的异常对象</param> '^WR5P<8c /// <param name="catchInfo">异常信息标题字符串.</param> &@{`{ /// <retvalue> Ca?w"m~h /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para> ^Lfwoy7R /// </retvalue> E]&N'+T
/// </summary> 2P'Vp7f6 Y public static String FormatException(Exception ex, String catchInfo) .j,xh )v" { X1}M_h% StringBuilder strBuilder = new StringBuilder(); 7z, $ if (catchInfo != String.Empty) 91&=UUkK
? { ^)Y3V-@t strBuilder.Append(catchInfo).Append("\r\n"); Brs} } '
t
8!.k strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace); {df;R|8l return strBuilder.ToString(); /{8Y,pZbu } 4mp)v*z {P?DkUO} /// <summary> ?
uTuO
/// 实际事件日志写入方法 q0>9T /// <param name="level">要记录信息的级别(error,warning,info,trace).</param> e'G3\h}# /// <param name="messageText">要记录的文本.</param> \
j)c?1*$ /// </summary> 7g{JE^u private static void WriteLog(TraceLevel level, String messageText) hB\BFVUSn/ { ;XZN0A2 try 9dszn^]T { tQ'R(H` EventLogEntryType LogEntryType; tZ@&di:-F switch (level) J'=s25OWU { qx >Z@o case TraceLevel.Error: cJwe4c6.m LogEntryType = EventLogEntryType.Error; Pk5\v0vkg break; ^56D)
A= case TraceLevel.Warning: V5h_uGOD LogEntryType = EventLogEntryType.Warning; t*BCpC} break; g.:ZMV case TraceLevel.Info: K|~!oQ LogEntryType = EventLogEntryType.Information; at*DYZBjDB break; R"t2=3K case TraceLevel.Verbose: ~]W
@+\l LogEntryType = EventLogEntryType.SuccessAudit; `+TC@2-? break; {~EsO1p default: @wAYhnxq LogEntryType = EventLogEntryType.SuccessAudit; +['1~5 break; jgpF+V-n$ }
2Z^p) i}<fg*6@E EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName ); 4.kn,s //写入事件日志 y?}<SnjP: eventLog.WriteEntry(messageText, LogEntryType); +]H!q
W: !14v Ovj4{ } 6(A"5B=\ catch {} //忽略任何异常 pwVGe|h%, } [Q8vS;. } //class ApplicationLog [*
ug:PG }
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[楼 主]
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Posted: 2006-04-03 13:58 |
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