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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)
N1,=5P$ 出处 j(^ot001%v ]@X5'r" 6.表格超连接列传递参数 Ay)q %:qx J$6h%Eyo <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’ Rs_0xh <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
}/~%Ysl 7.表格点击改变颜色 j,%@%upM Z|;<:RKWY if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) h'VN& T, { (ii6w d<* e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’; )006\W|t9 this.style.color=’buttontext’;this.style.cursor=’default’;"); lOIBX@K E } Yhdt"@;.. 写在DataGrid的_ItemDataBound里 _y#omEx H`u8}{7 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) [Du@go1C { n\d`Fk e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’; [MSLVTR this.style.color=’buttontext’;this.style.cursor=’default’;"); W>C!V e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;"); hsV+?#I } \zj _6Os rZRcy9$y> 8.关于日期格式 ,w~0U 9pPb]v,6 日期格式设定 {\-rZb==F2 B;9"=0 DataFormatString="{0:yyyy-MM-dd}" #_yQv?J 我觉得应该在itembound事件中 xdWfrm$;ZA Zgp]s
+%E e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd")) 0_yE74i 9.获取错误信息并到指定页面 t~pA2?9@ `@GqD 不要使用Response.Redirect,而应该使用Server.Transfer b?Wg|D =ark?<E e.g a%*l]S0z" ;9r
Z{'i+| // in global.asax 1xK'1g72 protected void Application_Error(Object sender, EventArgs e) { SQ#6~zxl if (Server.GetLastError() is HttpUnhandledException) l@`D;m Server.Transfer("MyErrorPage.aspx"); A^7!:^%K ||v=in //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :) t}-[^|)7 } <*L=u; Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理 tf64<j6 kTQ:k
}%B 10.清空Cookie C
G'NC\x5 3nuf3) Cookie.Expires=[DateTime]; 'G
6TSl Response.Cookies("UserName").Expires = 0 Z:f0> 11.自定义异常处理 GF~^-5 -oq!zi4: //自定义异常处理类 PpM
Z-f@ using System; dJ\6m!Mp using System.Diagnostics; q0WW^jwQ ||
?B1 namespace MyAppException RsBo\#` { iU^ 4a /// <summary> #oMbE<//" /// 从系统异常类ApplicationException继承的应用程序异常处理类。 9
[DQ[bL /// 自动将异常内容记录到Windows NT/2000的应用程序日志 ~\dpD /// </summary> LLmgk" public class AppException:System.ApplicationException 475yX-A { "M6a_rZ2W public AppException() Ff>Y<7CQ
v { c5P52_@ if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。"); ($(6]?J(?7 } V5rnI\:7 T\c;Ra public AppException(string message) DHpU?;|3 { ]SrKe-*:U LogEvent(message); :w_F<2d0
0 } 9CJUOB>] cNC\w% public AppException(string message,Exception innerException) f[7'kv5S { E E?v~6"& LogEvent(message); V$
38 if (innerException != null) qh$D;t1= { |}Mkn4 LogEvent(innerException.Message); *"
<tFQ } 7~\Dzcfk"P } S
!c/"~X+ 1ISA^< M //日志记录类 UQ|0Aqwq using System; >&^w\"' using System.Configuration; gZM{]GQ using System.Diagnostics; b("CvD8 using System.IO; 3JW9G04. using System.Text; C*Ws6s>+z using System.Threading; "EEE09~l\ 344,mnAd namespace MyEventLog W\.f:"2qr { ;x^&@G8W` /// <summary> lG#&Pv>- /// 事件日志记录类,提供事件日志记录支持 bG^eP:r /// <remarks> $L</{bXW /// 定义了4个日志记录方法 (error, warning, info, trace) 3kR- WgVF, /// </remarks> mf}?z21vD /// </summary> 9}}D -&Mc public class ApplicationLog GsDSJz { [&NF0c[i /// <summary> }QJE9;<e /// 将错误信息记录到Win2000/NT事件日志中 d1
y(Jt /// <param name="message">需要记录的文本信息</param>
IR/0gP /// </summary> &}T`[ d_Z public static void WriteError(String message) ,?&hqM\ { WDzov9ot WriteLog(TraceLevel.Error, message);
!Z=`Wk5 } Eq.c;3 -D!F|&$ /// <summary> boN)C?"^h /// 将警告信息记录到Win2000/NT事件日志中 q,:\i+>K* /// <param name="message">需要记录的文本信息</param> ?R,^prW{ /// </summary> 8:s3Q`O public static void WriteWarning(String message) Nm,vE7M { =,T~F3pK WriteLog(TraceLevel.Warning, message); #G*z{BRQ
} 55$by.rf? R4IFl
z /// <summary> 3I"&Qp%2 /// 将提示信息记录到Win2000/NT事件日志中 sS-5W-&P{T /// <param name="message">需要记录的文本信息</param> .7)A8R7Wt /// </summary> ;OdUH public static void WriteInfo(String message) m2_&rjGz { JWn9&WK WriteLog(TraceLevel.Info, message); k*-+@U"+ } {qx"/;3V /// <summary> .IKK.G /// 将跟踪信息记录到Win2000/NT事件日志中 Np/[MC /// <param name="message">需要记录的文本信息</param> }VFSF/\^ /// </summary> gsU&}R1*h public static void WriteTrace(String message) D6ck1pxkx { N`zHe*=[~ WriteLog(TraceLevel.Verbose, message); mB1)! } P{}Oe
*9" 0c3G_I= /// <summary> Q`//HOM, /// 格式化记录到事件日志的文本信息格式 k~q[qKb8y: /// <param name="ex">需要格式化的异常对象</param> <v2R6cj5 /// <param name="catchInfo">异常信息标题字符串.</param> (=Pn
LP /// <retvalue> st+Kz uK /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para> ZR#UoYjupb /// </retvalue> }F3Z~ /// </summary> /NkZ;<uxJ public static String FormatException(Exception ex, String catchInfo) KGI]W|T { QWxQD'L' StringBuilder strBuilder = new StringBuilder(); 8bK}&*z< if (catchInfo != String.Empty) ~z'0~3 { t*<c+Ixu strBuilder.Append(catchInfo).Append("\r\n"); 6XG+YIG6w } p5[uVRZ strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace); /0\pPc*kA{ return strBuilder.ToString(); !l\pwfXP&% } Mr1pRIYMd s e1ipn_A /// <summary> ?Z!KV= /// 实际事件日志写入方法 TxiJ?sDh* /// <param name="level">要记录信息的级别(error,warning,info,trace).</param> Th8Q~*v /// <param name="messageText">要记录的文本.</param> S_QDYnF)` /// </summary> I&vB\A private static void WriteLog(TraceLevel level, String messageText) ;zOZu~Q|' { Hc+<(g try YW'Y=* { %sq=lW5R{b EventLogEntryType LogEntryType; :{AN@zC0\ switch (level) K
l4", { Z/I!\ case TraceLevel.Error: hT_snb;ow LogEntryType = EventLogEntryType.Error; -@73"w/ break; 54OYAkPCk case TraceLevel.Warning: 9w(j2i
q LogEntryType = EventLogEntryType.Warning; V4"AFArI break; 4a 5n*6G! case TraceLevel.Info: CJC|
%i3 LogEntryType = EventLogEntryType.Information; @<2pYIi8 break; /}VQzF case TraceLevel.Verbose: ;z?XT\C$ LogEntryType = EventLogEntryType.SuccessAudit; w iq{Jo# break; EvYw$j default: Dux`BKl LogEntryType = EventLogEntryType.SuccessAudit; J!H5{7.efN break; lfA
BF } *HC8kD a%$ Wf?sJ`.%b EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName ); WY,t> 1c //写入事件日志 J'EK5=H eventLog.WriteEntry(messageText, LogEntryType); 4Rm3'Ch H>]z=w~ } Mz^s^aJEE catch {} //忽略任何异常 o
,!"E^ } pxbNeqK@p } //class ApplicationLog lEDHx[q }
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[楼 主]
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Posted: 2006-04-03 13:58 |
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