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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)
vXvV5Oq 出处 EK#m?O:> "_K 6= 6.表格超连接列传递参数 E+)Go-rS( ;MMFF { <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’ RnrM
rOh <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ /> I;v`o{ 7.表格点击改变颜色 :mrGB3x{ h+W^k+~( if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) GVM#Xl}w9 { 3k<#;( e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’; [o.zar82 this.style.color=’buttontext’;this.style.cursor=’default’;"); #~+#72+x7 } X]fw9tZ 写在DataGrid的_ItemDataBound里 PsgzDhRv PWMaB if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) (*RybKoaA { t0>{0 5 e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’; N>R%0m<e this.style.color=’buttontext’;this.style.cursor=’default’;"); ' XF`&3i e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;"); XOCau.# } #H[4?4r nnG2z
@$- 8.关于日期格式 !Ia"pNDf #:|Y(,c 日期格式设定 +29\'w,
@__;RVQ DataFormatString="{0:yyyy-MM-dd}" 8zC k9& 我觉得应该在itembound事件中 &-fx=gq= mx9/K+: e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd")) XijLS7Aw| 9.获取错误信息并到指定页面 |T_Pz&- 'pY;]^M 不要使用Response.Redirect,而应该使用Server.Transfer fmJW d
| *Zi%Q[0Me e.g $ rYS />Vx*^u8Hz // in global.asax ZZU 8B?) protected void Application_Error(Object sender, EventArgs e) { =&pN8PEn\ if (Server.GetLastError() is HttpUnhandledException) yCIgxPv|7 Server.Transfer("MyErrorPage.aspx"); .4<U*X
kt K$cIVsfr //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :) \Byk`}
9 } %^=!s Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理 Tud1xq J md
? 10.清空Cookie b8Rh|"J)d J7ekIQgR Cookie.Expires=[DateTime]; fq'Xy9L Response.Cookies("UserName").Expires = 0 @JEmybu 11.自定义异常处理 PdH`_/6
d^5SeCs6 //自定义异常处理类 8I\eromG using System; Ws*
PMK.0 using System.Diagnostics; -;)SER3Wq4 5o| !f namespace MyAppException :"P hkR { !""!sFx)R /// <summary> LAY)">*49H /// 从系统异常类ApplicationException继承的应用程序异常处理类。 c =N]!
,MO /// 自动将异常内容记录到Windows NT/2000的应用程序日志 @=0r3 /// </summary> gQh Ccv public class AppException:System.ApplicationException PyT}}UKj: { +B q}>
public AppException() 03QEXm~|Q { cCh5Jl@Z if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。"); ?gR\A8:8 } dI0bTw|s/ (>LHj]}K public AppException(string message) K"k"ml<4E { ^Em@6fz[ LogEvent(message); ~6:LUM } LA+$_U"Jk 7c29Ua~[ public AppException(string message,Exception innerException) N^Hn9n { <Sprp]n
7 LogEvent(message); 2u~c/JryN if (innerException != null) =tf@4_ { 2-6.r_ LogEvent(innerException.Message); 7/&C;" } 5"}y\ } ?K4.L?D#J AY&9JSu6 //日志记录类 7TV>6i+7 using System; B;z>Dd,Y_x using System.Configuration; 8g[(nxI~ using System.Diagnostics; hB
P$9GR using System.IO; IYfV~+P using System.Text; B_."?*|w using System.Threading; uG=t?C6 ;/?Z<[B namespace MyEventLog ]^*_F { Jb3>vCIn /// <summary> vz;7} Zj] /// 事件日志记录类,提供事件日志记录支持 1A%N0#_(Md /// <remarks> K2x6R /// 定义了4个日志记录方法 (error, warning, info, trace) 0a2$P+p /// </remarks> ch0oFc$ /// </summary> J ?ztn public class ApplicationLog m4Phn~>Gg { L _vblUDq /// <summary> U{T[*s /// 将错误信息记录到Win2000/NT事件日志中 6C
cB-@n4 /// <param name="message">需要记录的文本信息</param> )myf)"l5 /// </summary> 22)0zY%\ public static void WriteError(String message) qhV,
u;\. { g(-;_j!= WriteLog(TraceLevel.Error, message); tMxsR>sH } Zz"I.$$[M h]kn%?fpmB /// <summary> /hm84La /// 将警告信息记录到Win2000/NT事件日志中 [NHg&R H /// <param name="message">需要记录的文本信息</param> e1^fUOS /// </summary> ad"'O] public static void WriteWarning(String message) p//T7rs { Ho|o,XvLv WriteLog(TraceLevel.Warning, message); Wyy^gJ
l } =LlLE<X"%x c:=7lI
/// <summary> _REqT /// 将提示信息记录到Win2000/NT事件日志中 C1h#x'k /// <param name="message">需要记录的文本信息</param> %9t{Z1$ /// </summary> @)o0GHNP public static void WriteInfo(String message) mbF(tSy { dX_!0E[c WriteLog(TraceLevel.Info, message); PXV)NC } K@q&HV"'. /// <summary> t:\l&R& /// 将跟踪信息记录到Win2000/NT事件日志中 X6Un;UL /// <param name="message">需要记录的文本信息</param> 2Oyy`k
/// </summary> i*X{^A73" public static void WriteTrace(String message) D
H:J { Iha[Gu WriteLog(TraceLevel.Verbose, message); 3FFaEl } 1hR
(N -^yXLa;D /// <summary> BU!#z(vU /// 格式化记录到事件日志的文本信息格式 xZX`%f- /// <param name="ex">需要格式化的异常对象</param> @c Z\*,T /// <param name="catchInfo">异常信息标题字符串.</param> t\zbEN /// <retvalue> m
d?b* /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para> {|z#70 /// </retvalue> wtS
vJI~o) /// </summary> R\*)@[y9l
public static String FormatException(Exception ex, String catchInfo) kQLT$8io { Dzr e' StringBuilder strBuilder = new StringBuilder(); s
_~IZ%+<. if (catchInfo != String.Empty) ur6e&bTp { _wz2 strBuilder.Append(catchInfo).Append("\r\n"); j9:/RJS } 34z+INkX strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace); i
E9\_MA return strBuilder.ToString(); KnJx{8@z } =p q:m <4c%Q) /// <summary> +%XnMl /// 实际事件日志写入方法 L6+C]t}>6 /// <param name="level">要记录信息的级别(error,warning,info,trace).</param> paWxanSt /// <param name="messageText">要记录的文本.</param>
Yl~$V( /// </summary> ul@3
Bt private static void WriteLog(TraceLevel level, String messageText) h=6xZuA\ { |n`PESf_ try 2bLI%gg3 { @}DFp`~5| EventLogEntryType LogEntryType; PO o%^'( switch (level) O9^T3~x[V { tuLH}tkNY case TraceLevel.Error: ]JdJe6`Mc LogEntryType = EventLogEntryType.Error; rslvsS: break; c<4F4k7 case TraceLevel.Warning: ETfF5i} LogEntryType = EventLogEntryType.Warning; CZ(`|;BC* break; G;s"h%Xw98 case TraceLevel.Info: :,
_!pe;H LogEntryType = EventLogEntryType.Information; xS8,W break; I]R9HGJNlJ case TraceLevel.Verbose: ".P){Dep$4 LogEntryType = EventLogEntryType.SuccessAudit; rF] +,4 break; -V5w]F' default: [T^?Q%h LogEntryType = EventLogEntryType.SuccessAudit; OlY$v@| break; bd==+ } ER^QV(IvP8 e
|V] EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName ); F!yV8XQ //写入事件日志 Y#HI;Y^RP eventLog.WriteEntry(messageText, LogEntryType); (=c1 <)U4Xz
? } "2{%JFE catch {} //忽略任何异常 VhEka# } qP1FJ89H } //class ApplicationLog ~h)&&'a }
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[楼 主]
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Posted: 2006-04-03 13:58 |
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