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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) nWUau:% 出处 l I2UpfkBP 7r pTk&` 6.表格超连接列传递参数 01IfvK X"%eRW&qu/ <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’ B0^:nYko <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ /> o@YEd d 7.表格点击改变颜色 S(: |S( DXK\3vf Ot if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) @FN1o4&3 { lLEEre e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’; |xpOU*k this.style.color=’buttontext’;this.style.cursor=’default’;"); Qd}h:U^ }
ryTtGx%a 写在DataGrid的_ItemDataBound里 uFaT~ 4 Vb?_RE_H if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) .GFKy { Ex{;&UWm e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’; )7WLbj!M this.style.color=’buttontext’;this.style.cursor=’default’;"); ZV[-$ e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;"); ?y^ ix+M } f1t?<=3Ek< >9[wjB2?} 8.关于日期格式 "p&4Sn3T2? W;8}`k 日期格式设定 H#QPcp@ RG-,<G` DataFormatString="{0:yyyy-MM-dd}" 3;Tsjv} 我觉得应该在itembound事件中 V}Pv}j:; Fh.ZsPn,m e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd")) 7[8d-Sf24{ 9.获取错误信息并到指定页面 &lW~ot1, 'zuA3$SR 不要使用Response.Redirect,而应该使用Server.Transfer "-G&]YMl M'$?Jp#]} e.g XMpE|M!c h'A
#Yp0, // in global.asax $HV`bJ5!L* protected void Application_Error(Object sender, EventArgs e) { I@q4D1g if (Server.GetLastError() is HttpUnhandledException) J(`(PYo\i Server.Transfer("MyErrorPage.aspx"); !r+SE 6Ou[t6 //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :) Xyw;Nh!!d } lAx8m't}6 Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理 @3
4CaZ$k R?l={N=Wf 10.清空Cookie $9<P3J 1 RZI4N
4o Cookie.Expires=[DateTime]; .p\<niu7 Response.Cookies("UserName").Expires = 0 L(3}
H,t 11.自定义异常处理 ](^BQc t%30B^Ii%K //自定义异常处理类 2L?Pw using System;
19^B610 using System.Diagnostics; s#V:!
7 P!lTK
namespace MyAppException Rm=[Sj84 { bOdyrynh /// <summary> \oAxmvt /// 从系统异常类ApplicationException继承的应用程序异常处理类。 > 0NDlS%Q: /// 自动将异常内容记录到Windows NT/2000的应用程序日志 \ dZD2e4 /// </summary> A*+Kl
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public class AppException:System.ApplicationException 9rQw~B<S { Y1U\VU public AppException() |PW.CV0, { F7qQrE5bl if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。"); gX*i"Y# } EyPF'|Qtn e(sV4Z~ public AppException(string message) aG/L'we
R { `1)n2<B LogEvent(message); (% f2ZNen } h**mAa0fo gjhWoZV public AppException(string message,Exception innerException) ,daZK
xT { {w|KWGk2 LogEvent(message); tD !$!\`O if (innerException != null) lhhp6-r { ]{'lV~fc LogEvent(innerException.Message);
Qg4g(0E@ } K=X13As_ } ^J$?[@qD \hT=U*dMR //日志记录类 [X|KXlNfm using System; }X[wWH using System.Configuration;
[EU\- using System.Diagnostics; J`x!c9 zg7 using System.IO; -R-|[xN using System.Text; b".e6zev using System.Threading; A('_.J= nI6[y)j namespace MyEventLog j9Y'HU5" { qCaM]Y /// <summary> -YHyJs-bU /// 事件日志记录类,提供事件日志记录支持 />\6_kT /// <remarks> X0QLT:J b /// 定义了4个日志记录方法 (error, warning, info, trace) $9Yk]~ /// </remarks> <X,0\U!lL /// </summary> R7xEE7p public class ApplicationLog #XJ`/\E] { ^sA"&Vdr^ /// <summary> f~NGIlgR /// 将错误信息记录到Win2000/NT事件日志中 EsR$H2" /// <param name="message">需要记录的文本信息</param> 9s}y*Vp /// </summary> Y]R;>E5o| public static void WriteError(String message) :>'4@{' { j >wT-s WriteLog(TraceLevel.Error, message); 8P#jC$< } ') -Rv]xe vtS[Tkk|A /// <summary> J_=42aHO /// 将警告信息记录到Win2000/NT事件日志中 T8ftBIOi /// <param name="message">需要记录的文本信息</param> m"CsJ'\ors /// </summary>
5@xl/ public static void WriteWarning(String message) }L1-2 { If*t$f>y4N WriteLog(TraceLevel.Warning, message); dLs40 -R } lrXi*u] tL!R^Tf /// <summary> /v,H
%8S /// 将提示信息记录到Win2000/NT事件日志中 gVs8W3GW /// <param name="message">需要记录的文本信息</param> oL2 a:\7 /// </summary> ATb[/=hP<R public static void WriteInfo(String message) Al
sr6uLT1 { 0DFxVH_xN WriteLog(TraceLevel.Info, message); eaI!}#>R+ } ' N@1+v= /// <summary> '<35XjW /// 将跟踪信息记录到Win2000/NT事件日志中 :i4>&4j /// <param name="message">需要记录的文本信息</param> z&6TdwhV /// </summary> Y0||>LX public static void WriteTrace(String message) W\tSXM-Hg { -|l^- Qf! WriteLog(TraceLevel.Verbose, message); 1Ue;hu'q: } ?>_[hZ %z(nZ%,Z /// <summary> XCGJ~ /// 格式化记录到事件日志的文本信息格式 jo.Sg:7& /// <param name="ex">需要格式化的异常对象</param> Myj 68_wf /// <param name="catchInfo">异常信息标题字符串.</param> g?'4G$M /// <retvalue> `(r[BV|h} /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para> yJ(p-3O5 /// </retvalue> eAkj pc /// </summary> zF6]2Y?k% public static String FormatException(Exception ex, String catchInfo) P+m{hn~% { uIG,2u, StringBuilder strBuilder = new StringBuilder(); 6d RxfbL if (catchInfo != String.Empty) +[MzF EE[ { ;$Eg4uX strBuilder.Append(catchInfo).Append("\r\n"); 1CkBfK } /e^q>>z strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace); =AhXEu ^ return strBuilder.ToString(); ~
mqiXr8 } " .9b}} kvzGI>H: /// <summary> TwlrncK* /// 实际事件日志写入方法 VpDNp
(2 /// <param name="level">要记录信息的级别(error,warning,info,trace).</param> <p<J;@ /// <param name="messageText">要记录的文本.</param> 2L#$WuM~^ /// </summary> U2=PmS P private static void WriteLog(TraceLevel level, String messageText) u? a*bW {
J1waiOh try LV4]YC { @S /jVXA EventLogEntryType LogEntryType; "v
@h switch (level) cxBu2(Y { WUQlAsme case TraceLevel.Error: _S4 3_hW LogEntryType = EventLogEntryType.Error; O@@=ZyYwc break; #K8kz case TraceLevel.Warning: }B=`nbgIG7 LogEntryType = EventLogEntryType.Warning; ;VY0DAp{ break; eIEr\X4\~~ case TraceLevel.Info: tta\.ic LogEntryType = EventLogEntryType.Information; [b-wak})aD break; FSaCbs( case TraceLevel.Verbose: $"z|^ze LogEntryType = EventLogEntryType.SuccessAudit; A
%iZ_h^ break; xEt".K default: VKcO]_W1 LogEntryType = EventLogEntryType.SuccessAudit; y\]~S2}G break; %
F'*0< } K3QE>@'] /&g5f4[|p EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName ); 2R:I23[#B //写入事件日志 7B@[`>5?%L eventLog.WriteEntry(messageText, LogEntryType); ]?n)!u =Ri'Prx& } "pdq_35 catch {} //忽略任何异常
M=Y}w? } V=)0{7-9 } //class ApplicationLog OR4ZjogzY }
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[楼 主]
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Posted: 2006-04-03 13:58 |
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