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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) Q9UBxpDV: 出处 y2>XLELy IwE{Zvr 6.表格超连接列传递参数 !yo/ F&6 qM."W=XVN <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’ {iyO96YI[^ <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ /> `YZK$
-, 7.表格点击改变颜色 9{{|P= ^^ Q'AE if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) PWwz<AI+ { i|@lUXBp e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’; %[x oA)0! this.style.color=’buttontext’;this.style.cursor=’default’;"); YPjjSi:# } Zd~l_V f 写在DataGrid的_ItemDataBound里 HG1)q\Xd /_N*6a~ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) i.|zKjF' { +YL9gNN>P e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’; A,tmy',d" this.style.color=’buttontext’;this.style.cursor=’default’;"); [r_YQ*+ej e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;"); e~Oge } O#}'QZd' -P+@n)?T6 8.关于日期格式 MOiTzL* yFIB/ln: 日期格式设定 6D[m}/?Uy ICJp- DataFormatString="{0:yyyy-MM-dd}" =F(fum;zH 我觉得应该在itembound事件中 h";0i: $ BEIG@qG e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd")) 5hVp2w- 9.获取错误信息并到指定页面 Km5#$IiP; Z!@<[Vo6 不要使用Response.Redirect,而应该使用Server.Transfer j}0W|*
X*Ibk-PUM e.g C*;g!~{ aoLYw 9 // in global.asax (J c} K protected void Application_Error(Object sender, EventArgs e) { MwoU>+XB if (Server.GetLastError() is HttpUnhandledException) =%p%+F@RlW Server.Transfer("MyErrorPage.aspx"); YbMeSU/sX ^8,Y1r9`$ //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :) }y<p_dZI } &3
QdQn, 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 /H_,1Fu| ogcEv>0 10.清空Cookie 0JQ0lzk1 ~$#"'Tl4J Cookie.Expires=[DateTime]; R)>/P{A-P Response.Cookies("UserName").Expires = 0 @a AR99 M 11.自定义异常处理 W/(D"[:l% 0 mJvoz\j8 //自定义异常处理类 X!} t`` using System; ^CIO,I using System.Diagnostics; 8|
>$M H%,jB<-.A namespace MyAppException AlW0GK=N-p { "}_b,5lkGK /// <summary> o,| LO$~ /// 从系统异常类ApplicationException继承的应用程序异常处理类。 &PHejG_# /// 自动将异常内容记录到Windows NT/2000的应用程序日志 #cB=](N /// </summary> 2V6=F[T public class AppException:System.ApplicationException e):jQite
{ rToZN!q\S public AppException() i$~2pr { d~bZOy if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。"); 6#Ag^A } g@IV|C(*0 k[TVu5R public AppException(string message) =oN(1k^ { sVk+E'q LogEvent(message); 5a$Q}!6E.Y } 3NI3b-7 3V)ef$Y0 public AppException(string message,Exception innerException) N?xZ]?T { =fJDFg LogEvent(message); qOA+ao if (innerException != null) sK)fEx {
;E Z5/"T LogEvent(innerException.Message); 4@2<dw|*h } U
GA_^?4 } {1 VHz])I H1?t2\V4 //日志记录类 L<t>o":o using System; F52%og~N using System.Configuration; k|C~qe3E using System.Diagnostics; _?]0b7X using System.IO; `ChS$p"A using System.Text; a
~s:f5S> using System.Threading; "_LDs(& i-.]onR namespace MyEventLog s$%t*T2J> { u
Dtml$9rN /// <summary> l*r8.qp /// 事件日志记录类,提供事件日志记录支持 UL{+mp
/// <remarks> 1c5+XCr /// 定义了4个日志记录方法 (error, warning, info, trace) u+5&^"72, /// </remarks> y?6J%~\WP /// </summary> -yP|CZM public class ApplicationLog {GH0>
1& { :EGvI /// <summary> r\PO?1 /// 将错误信息记录到Win2000/NT事件日志中 ABx< Ep6 /// <param name="message">需要记录的文本信息</param> ;[qA?<GJ /// </summary> CXQ +h public static void WriteError(String message) #QUQC2P(~ { 539fB, WriteLog(TraceLevel.Error, message); YW14X } &@v&5EXOw
[Qw BSq8) /// <summary> ]>9[}'u /// 将警告信息记录到Win2000/NT事件日志中 )%+7"7. /// <param name="message">需要记录的文本信息</param> U/#X,Bi~ /// </summary> 7Dt*+
+: public static void WriteWarning(String message) 'bQjJRq! { 5cF7w WriteLog(TraceLevel.Warning, message); nk*T
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} APJVD- 9cIKi#Bl /// <summary> S4Q
fx6:~h /// 将提示信息记录到Win2000/NT事件日志中 9Ai
3p /// <param name="message">需要记录的文本信息</param> I3.cy i /// </summary> >2s31
{ public static void WriteInfo(String message) 6/dP)"a(' { gq7l>vT. WriteLog(TraceLevel.Info, message); A4tb>OM } 'QdDXw5o /// <summary> ~LF/wx> /// 将跟踪信息记录到Win2000/NT事件日志中 J$^"cCMr /// <param name="message">需要记录的文本信息</param> "Ng%"Nz /// </summary> D & Bdl5g public static void WriteTrace(String message) rqWD#FB=z { j,79G^/YG WriteLog(TraceLevel.Verbose, message); [gIvB<Uv } nu `R(2/ STL+tLJ /// <summary> v;nnr
0; /// 格式化记录到事件日志的文本信息格式 =/+f3 /// <param name="ex">需要格式化的异常对象</param> -4
v2] /// <param name="catchInfo">异常信息标题字符串.</param> 0TqIRUz "C /// <retvalue> @M*oq2U; /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para> C/
!7E: /// </retvalue> P]
0/ S /// </summary> i<M
F8$ public static String FormatException(Exception ex, String catchInfo) /^9=2~b { 5
)z'= StringBuilder strBuilder = new StringBuilder(); y-uSpW if (catchInfo != String.Empty) ]Jnrs { W.c>("gC strBuilder.Append(catchInfo).Append("\r\n"); y[';@t7CC } ig ^x%!; strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace); Zg3
/,:1 return strBuilder.ToString(); {ceY:49 } T*%O\&'r "I
QM4: /// <summary> E/2_@&U
:} /// 实际事件日志写入方法 |qf ef& /// <param name="level">要记录信息的级别(error,warning,info,trace).</param> +ZR>ul-c /// <param name="messageText">要记录的文本.</param> 7.tIf
<^$P /// </summary> _ZE
&W private static void WriteLog(TraceLevel level, String messageText) A
"6& { L=gG23U& try #
kgLdd" { N_E)f EventLogEntryType LogEntryType; L0qL\>#ejr switch (level) ]4B&8n! { A&{eC
C case TraceLevel.Error: EKUiX#p:M LogEntryType = EventLogEntryType.Error; ]]T,;|B break; )3ZkKv;zY case TraceLevel.Warning: [&)*jc16 LogEntryType = EventLogEntryType.Warning; hX:yn:P~ break; 0*]ZC'pm case TraceLevel.Info: a&Me#H{ LogEntryType = EventLogEntryType.Information; l)f 2T@bHl break; sY* qf=
case TraceLevel.Verbose: cvC 7#i[G LogEntryType = EventLogEntryType.SuccessAudit; C8 y[B1Y break; ,U>G$G^ default: 7 iQa)8, LogEntryType = EventLogEntryType.SuccessAudit; v!#koqd1y. break; @v/
8}n } Ej<`HbJ'Q jpZ 7p; EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName ); l4y>uZ>a //写入事件日志 SqVh\Nn eventLog.WriteEntry(messageText, LogEntryType); 2^)_XVX1 rnC<
(f22 } 0y%s\,PsT catch {} //忽略任何异常 !gi3J @ } {( Ba } //class ApplicationLog i<!1s%i} }
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[楼 主]
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Posted: 2006-04-03 13:58 |
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