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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) )=,9`+Zta 出处 xRTg
[ x jP" 'yU 6.表格超连接列传递参数 ![X.% tx|"v|&e2 <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’ X"qbB4(I <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ /> UtG
d/\: 7.表格点击改变颜色 mn6p s6OB 0=(-8vwd if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) I%zo>s6 {
#LNB@E e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’; pRk'GR]` this.style.color=’buttontext’;this.style.cursor=’default’;"); &:cTo(C' } /O(;~1B 写在DataGrid的_ItemDataBound里 QF.wtMGF& )8
N)Z~h if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) E{k%d39> { A0N ;VYv e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’; BGh8\2 this.style.color=’buttontext’;this.style.cursor=’default’;"); 2sd=G'7! e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;"); |\r\i&|g1 } l<)JAT;P $Bwvw)(% 8.关于日期格式 qU
x7S(a Vo9)KxR 日期格式设定 [F>n!`8 $Ln2O# DataFormatString="{0:yyyy-MM-dd}" ?[>BssW 我觉得应该在itembound事件中 kp
&XX| 1
FIiX e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd")) '?!<I 9.获取错误信息并到指定页面 Y @ ,e }-]s#^'w 不要使用Response.Redirect,而应该使用Server.Transfer UNH}*]u4` MvjwP?J] e.g >,Swk3 TX5/{cHd // in global.asax +VI0oo {Z protected void Application_Error(Object sender, EventArgs e) { >8HRnCyp/ if (Server.GetLastError() is HttpUnhandledException) WaO;hy~us Server.Transfer("MyErrorPage.aspx"); 1~ZHC[ ` ~|d?o5W //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :) PT*@#:MA } $HnD|_* Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理 _f2iz4 Q^5 t]HKn 10.清空Cookie
_xwfz]lb+ KqIe8bi^G Cookie.Expires=[DateTime]; tp
3N5I Response.Cookies("UserName").Expires = 0 #2t\>7] 11.自定义异常处理 JG+o~tQC MhB=+S[@ //自定义异常处理类 HOI`F3#XI using System; vP;tgW9Qk using System.Diagnostics; HDG"a&$
SxQDqoA~ namespace MyAppException +[nYu)puP { O*"wQ50Ou /// <summary> \A"a>e /// 从系统异常类ApplicationException继承的应用程序异常处理类。 L.&Vi"M <@ /// 自动将异常内容记录到Windows NT/2000的应用程序日志 ^O9m11 /// </summary> WED7]2> public class AppException:System.ApplicationException fH
{$LjH( { X7!A(q+h public AppException() ^Q:`2C5 { KUV{]?' if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。"); lcLxqnv } T>?1+mruM C/#/F#C public AppException(string message) g5]DA.&( { 438>)= LogEvent(message); gU$3Y#R } 35\0g& 2Nszxvq, public AppException(string message,Exception innerException) >@\-m { 4}b:..Ku LogEvent(message); D7oV&vXg if (innerException != null) 7~g0{W>Zm { P,], N) LogEvent(innerException.Message); L
3Iz]D3s } qTex\qP } 7tnzgtal :"^$7 //日志记录类 ,4UJ|D=J using System; rGO3 using System.Configuration; 'f!Jh<i using System.Diagnostics; +d15a%^` using System.IO; "d\8OOU using System.Text; my0->W%L using System.Threading; <;K/Yv'{r 8t"DQ Y-R namespace MyEventLog D[?|\? { zAIC5fvu /// <summary> G)`MoVH1 /// 事件日志记录类,提供事件日志记录支持 gr7_oJ:R /// <remarks> K!mgh7Dx /// 定义了4个日志记录方法 (error, warning, info, trace) M>j)6?n`_ /// </remarks> 'r0gqtB /// </summary> +cN2 KP public class ApplicationLog Ky|0IKE8Z { v|z1nD!?] /// <summary> )}v2Z3: /// 将错误信息记录到Win2000/NT事件日志中 o%iTYR:x /// <param name="message">需要记录的文本信息</param> x@)u:0 /// </summary> ySZ)yT public static void WriteError(String message) 8'$n
|<1X { MJoC*8QxM WriteLog(TraceLevel.Error, message); |Can } $Re
%+2c %qhaVM$] /// <summary> a6C~!{'nW /// 将警告信息记录到Win2000/NT事件日志中 :KwYuwYS /// <param name="message">需要记录的文本信息</param> g=wnly /// </summary> -q27N^A0 public static void WriteWarning(String message) |BR&p)7) { SV >EB;< WriteLog(TraceLevel.Warning, message); d!cx%[ } W=/B[@3' MG|NH0k /// <summary> t<-Iiq+tL /// 将提示信息记录到Win2000/NT事件日志中 P=.W.oS /// <param name="message">需要记录的文本信息</param> hO8B]4=&* /// </summary> wSGUNP9 public static void WriteInfo(String message) B(hNBq7 { Im2g2] WriteLog(TraceLevel.Info, message);
Y|",.~ } /@K?W=w4 /// <summary> %rkUy?=vu /// 将跟踪信息记录到Win2000/NT事件日志中 b.F2m(e2 /// <param name="message">需要记录的文本信息</param> h4U .wk /// </summary> NW$Z}?I public static void WriteTrace(String message) ^(%>U!<<%, { $%/Zm*H WriteLog(TraceLevel.Verbose, message); YS9|J=!~ } {"s8X(#_sC Z|u_DaSrr| /// <summary> r(RJ&\ ! /// 格式化记录到事件日志的文本信息格式 No
I=t /// <param name="ex">需要格式化的异常对象</param> @E1N9S?> /// <param name="catchInfo">异常信息标题字符串.</param> 9.<$&mVk7` /// <retvalue> 18~j>fN /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para> rz4S"4 /// </retvalue> *fl1
=Rfr /// </summary> "p<f#s} public static String FormatException(Exception ex, String catchInfo) ]RV6(|U4_ { K}6}Opr,Tt StringBuilder strBuilder = new StringBuilder(); @qeI4io-n if (catchInfo != String.Empty) cdk;HK_Ve. { s:M:Ff strBuilder.Append(catchInfo).Append("\r\n"); *<J**FhcMu } /@q_`tU strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace); T. {P}#'| return strBuilder.ToString(); WFTTBUoH } )U5AnL U<Ag=vsZE /// <summary> /6g*WX2P1 /// 实际事件日志写入方法 7z`)1^M /// <param name="level">要记录信息的级别(error,warning,info,trace).</param> HyZh27PE /// <param name="messageText">要记录的文本.</param> d^4!=^HN /// </summary> :0r@o:H private static void WriteLog(TraceLevel level, String messageText) Tk)y*y { .7{,u1N' try po!0j+r3 { OF!(BJL EventLogEntryType LogEntryType; e_7a9:2e switch (level) G$WMW@fy { (;\JCeGA case TraceLevel.Error: 7N 7W0Ky LogEntryType = EventLogEntryType.Error; `N;JM3 ck break; Ea 0
j} case TraceLevel.Warning: =#^\9|?$ LogEntryType = EventLogEntryType.Warning; EQ\/I(
=l break; n}0[EE! case TraceLevel.Info: w_PnEJa9 LogEntryType = EventLogEntryType.Information; >E6w,Ab break; K<6)SL4 case TraceLevel.Verbose: ZDMS:w.'T LogEntryType = EventLogEntryType.SuccessAudit; i1}Y;mj break; [<rV
"g default: "K;f[&xO,o LogEntryType = EventLogEntryType.SuccessAudit; Onz@A" break; V9bn } 0
M-=3T )lwxFP; EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName ); tFn_{fCc> //写入事件日志 gLy1*k4 eventLog.WriteEntry(messageText, LogEntryType); {S,L %
y<|8OTT } #%5[8~& catch {} //忽略任何异常 &P'd&B1
} crTRfqF } //class ApplicationLog wNMf-~ }
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Posted: 2006-04-03 13:58 |
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