| 阿七 |
2006-04-03 13:58 |
ASP.NET程序中常用的三十三种代码(2) yf$7<gwX 出处 ND`~|6yb Q'rG' | 6.表格超连接列传递参数 3Y8%5/D5 c2i^dNp_ <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’ @Wv*` <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ /> $V+ze*ra 7.表格点击改变颜色 /f2*J QM$?}>: if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) ^o{O5&i] { mbd@4u e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’; -W oZwqh this.style.color=’buttontext’;this.style.cursor=’default’;"); *AJW8tIP } tV T(!&( 写在DataGrid的_ItemDataBound里 Nc7YMxk'H Hu;#uAnxQ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) UrtN3icph { NQ
Odgp e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’; /2YI!U@A this.style.color=’buttontext’;this.style.cursor=’default’;"); 3cs'Oz<w e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;"); Mbi)mybM } ~< k'{ .<tb*6rX> 8.关于日期格式 ~UL;O\-b0 ?{+}gS^ 日期格式设定 x&kF;UC y0z}[hZ DataFormatString="{0:yyyy-MM-dd}" z S^:Ng5 我觉得应该在itembound事件中 :V >Z|?[*H f>Ij:b`Z2 e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd")) a*o=,! 9.获取错误信息并到指定页面 b2 ZKhS8 |J8c|h< 不要使用Response.Redirect,而应该使用Server.Transfer RU@`+6j+ 1YQ|KJ*K e.g t.3b\RV[ $_NVy>\& // in global.asax -MeGJX:^I protected void Application_Error(Object sender, EventArgs e) { dMYDB if (Server.GetLastError() is HttpUnhandledException) 2 y
,f Server.Transfer("MyErrorPage.aspx"); 0>>tdd7 EdLbVrN, //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :) YQ;?N66 } 8I`>tY Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理 #5=Yg5 \&"gCv# 10.清空Cookie {}~7Gi! bF<FX_}!s! Cookie.Expires=[DateTime]; TU^UR}=lP Response.Cookies("UserName").Expires = 0 &KT*rL 11.自定义异常处理 HW)> ` 5v
6*.e'p //自定义异常处理类 %?^IS&]Z using System; Jzo|$W using System.Diagnostics; !T!U@e=u ,eW K~ pa namespace MyAppException ^cn%]X#. { pxDkf|* /// <summary> 6* (6>F5 /// 从系统异常类ApplicationException继承的应用程序异常处理类。 9'Le}`Gf /// 自动将异常内容记录到Windows NT/2000的应用程序日志 u
D4on} /// </summary> \QGh@AQp" public class AppException:System.ApplicationException p(=}Qqdr8 { GHWi,' mr public AppException() #rD
0`[pz { db -h=L| if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。"); ~4fUaMT } NwP
!. g(& hu S public AppException(string message) (E[c-1s { y(^t &tgjS LogEvent(message); lJb1{\|., } 3Xcjr2]~ RUco3fZ public AppException(string message,Exception innerException) VokIc&!Uz { Sqn|
LogEvent(message); B8.a#@R if (innerException != null) &rs { *@)0TL(03 LogEvent(innerException.Message); pW5ch"HE } H?oBax: } ad)jw:n X(Z~oGyg //日志记录类 L
Y:%k|L9 using System; -d>2&)5 using System.Configuration; 00SYNG! using System.Diagnostics; pKZRgA#kN using System.IO; C GN=kQ using System.Text; $|"Y|3&X using System.Threading; WwUhwY1o!L \rj>T6 namespace MyEventLog eR3v=Q { &u+l`F^Z /// <summary> 6;:z?Q /// 事件日志记录类,提供事件日志记录支持 S2i*Li /// <remarks> ^yLhL^Y /// 定义了4个日志记录方法 (error, warning, info, trace) _ sqj~|K /// </remarks> "_^vQ1M]Z /// </summary> e j,)<* public class ApplicationLog DHq#beN { -=cxUDB /// <summary> J5TT+FQ /// 将错误信息记录到Win2000/NT事件日志中 '@/1e\ -y /// <param name="message">需要记录的文本信息</param> 'Z*`~,Q /// </summary> $fCKK&Wy public static void WriteError(String message) yJK:4af;. { [I?[N.v WriteLog(TraceLevel.Error, message); U)[LKO1 } -aq3Lqi tzShds /// <summary> g#k@R'7E /// 将警告信息记录到Win2000/NT事件日志中 )n6,uTlOw /// <param name="message">需要记录的文本信息</param> <z#.J] /// </summary> )1f%kp#] public static void WriteWarning(String message) wz.. { \G#_z|'dN WriteLog(TraceLevel.Warning, message); &MZ{B/;;H } 2 g\O/oz (mr*Thy`@ /// <summary> :_,a%hb+8 /// 将提示信息记录到Win2000/NT事件日志中 M"Af_Pbx /// <param name="message">需要记录的文本信息</param> TMGYNb%<bX /// </summary> blLl1Ak public static void WriteInfo(String message) s#'Vasu {
Sp6==(:. WriteLog(TraceLevel.Info, message); (*M0'5 } e"UXG\8D /// <summary> a@Vk(3Rx_ /// 将跟踪信息记录到Win2000/NT事件日志中 o|u4C {j /// <param name="message">需要记录的文本信息</param> T6b~uE /// </summary> L8q#_k public static void WriteTrace(String message) fWPa1E@ { cuC'
o\f WriteLog(TraceLevel.Verbose, message); ?2_h. } ]c v/dY# T+x
/J]A /// <summary> ,na}' A@a` /// 格式化记录到事件日志的文本信息格式 2}7 _Y6RS* /// <param name="ex">需要格式化的异常对象</param> '4It>50b /// <param name="catchInfo">异常信息标题字符串.</param> f[vm]1# /// <retvalue> 7NT0]j(w- /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para> w2!:>8o: /// </retvalue> DE7y\oO] /// </summary> ]8R@2L3s public static String FormatException(Exception ex, String catchInfo) 1;KJUf[N { 3#x1(+c6 StringBuilder strBuilder = new StringBuilder(); +8W5amk.P| if (catchInfo != String.Empty) ).`v&-cK4E { `\|@w@f|; strBuilder.Append(catchInfo).Append("\r\n"); dl3;A_ 2 } r`"T{o\e strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace); k q]E@tE*3 return strBuilder.ToString(); u Fw1% } CJh,-w{wJ" q.<)0nk /// <summary> 9D &vxKE /// 实际事件日志写入方法 .I EHjy\+ /// <param name="level">要记录信息的级别(error,warning,info,trace).</param> rW|%eT*/'A /// <param name="messageText">要记录的文本.</param> 9BpxbU+L; /// </summary> j!NXNuy: private static void WriteLog(TraceLevel level, String messageText) aeI0;u { *!TQC6b$ try !s^XWsb8 { TBrwir EventLogEntryType LogEntryType; 4X*U~} switch (level) LLT6*up$ { s3m\ case TraceLevel.Error: i].E1},% LogEntryType = EventLogEntryType.Error; z;P# break; U^|T{g+O case TraceLevel.Warning: %FM26^ LogEntryType = EventLogEntryType.Warning; -BI!ZsC' break; J=78p#XUg case TraceLevel.Info: +TA~RCd LogEntryType = EventLogEntryType.Information; rv(N0p/ break; Z3YKG{g case TraceLevel.Verbose: ?<^8,H LogEntryType = EventLogEntryType.SuccessAudit; m,t{D,
2 break; nA_'jl default: AaxQBTB LogEntryType = EventLogEntryType.SuccessAudit; Vt3*~Beb break; .tGz, z} } RQ[/s
lg MZX)znO EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName ); ~GX
]K H //写入事件日志 QICxSk eventLog.WriteEntry(messageText, LogEntryType); QD{1?aY H[nBNz)
C } gJuK% P catch {} //忽略任何异常 1U.X[}e } j!!s>7IZ } //class ApplicationLog bo90;7EK8 } |
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