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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]cef=h# 出处 IHCEu
K B>, O@og 6.表格超连接列传递参数 ^nn3; ,TY&N- <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’ ndEW$?W, <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ /> {?c`0C 7.表格点击改变颜色 1:S75~b-` <4Z;a2l}U if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) R(Y4n w+Y- { 8Qtd, e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’; 4$D:<8B this.style.color=’buttontext’;this.style.cursor=’default’;"); 0#f;/c0i } >,22@4 写在DataGrid的_ItemDataBound里 S'"(zc3= 5nL,sFd if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) qE73M5L& { 0^htwec! e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’; /L,VZ?CmtK this.style.color=’buttontext’;this.style.cursor=’default’;"); |/B2Bm e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;"); (~t/8!7N } yeQ6\yi .0$$H"t 8.关于日期格式 <=KtRE>$ J6 }J / 日期格式设定 -DgJkyt+< }Xv2I$J DataFormatString="{0:yyyy-MM-dd}" `8$gaA* 我觉得应该在itembound事件中 9(`d
h 4f+R}Ee7 e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd")) 5"1kfB3v 9.获取错误信息并到指定页面 Ms8&$ 8t3,}}TJ 不要使用Response.Redirect,而应该使用Server.Transfer G[7Z5)2B % j4 e.g 3=(Gb hVPSW# .d // in global.asax Vo*38c2 protected void Application_Error(Object sender, EventArgs e) { Lw EI if (Server.GetLastError() is HttpUnhandledException) 7;H!F!K] Server.Transfer("MyErrorPage.aspx"); gc|?$aE |FK##8 //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :) $6~ J#; } 5(F @KeH> Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理 8sm8L\- ;[
UGEi 10.清空Cookie }[a "5 \<. Cookie.Expires=[DateTime]; L8"0o 0- Response.Cookies("UserName").Expires = 0 h`X>b/V 11.自定义异常处理 N;4tvWI C(( 7 //自定义异常处理类 rVU::C+- using System; iC]=S} using System.Diagnostics; BJzNh>-#= 3K
Y-+ k namespace MyAppException 1k&**!S]% { y%* hHnGd /// <summary> {%Mt-Gm'd /// 从系统异常类ApplicationException继承的应用程序异常处理类。 6$#p}nE /// 自动将异常内容记录到Windows NT/2000的应用程序日志 "YY6_qQR' /// </summary> }Yd7<"kp public class AppException:System.ApplicationException O>P792) { @f<q&K%FJ public AppException() y7[D9Zv
Z { Kh{C$b if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。"); !`j}%!K! } Q
a(>$. h k%UE^ public AppException(string message) !JZ)6mtlr { (8bo"{zI LogEvent(message); l/|bU9o /u } Yvky=RM 07L
>@Gf public AppException(string message,Exception innerException) ~`7L\'fs { rnB-e?> LogEvent(message); <B,z)c if (innerException != null) D]NfA2B7 { E_t ^osY& LogEvent(innerException.Message); u;
{,,ct } sn.Xvk%75 } J|vriI; 7#\\Ava$T //日志记录类 Dwvd using System; gEFs4;
CN using System.Configuration; sA(
e using System.Diagnostics; lIs<&-0 using System.IO; lRIS&9vA3 using System.Text; #;l~Y}7' using System.Threading; *|Cmm>z"7 _FG?zE namespace MyEventLog &y1
64xn'h { 5.1 c#rL /// <summary> dd $}FlT /// 事件日志记录类,提供事件日志记录支持 =!@5! /// <remarks> Re`'dde= /// 定义了4个日志记录方法 (error, warning, info, trace) I-=H;6w7 /// </remarks> *)+K
+J /// </summary> '?WKKYD7N public class ApplicationLog fu}ZOPu { 6jdNQC$#B /// <summary> ;@I4[4ph} /// 将错误信息记录到Win2000/NT事件日志中 Gw\-e;, /// <param name="message">需要记录的文本信息</param> STfcx]L /// </summary> r`t|}m public static void WriteError(String message) U64WTS@ { ,5tW|=0@ WriteLog(TraceLevel.Error, message); -Fl;;jeX } Rds_Cd C ncF|wz /// <summary> h3}gg@Fm /// 将警告信息记录到Win2000/NT事件日志中 Q Pel n) /// <param name="message">需要记录的文本信息</param> 2YU-iipdOq /// </summary> WAzYnl'p public static void WriteWarning(String message) |H!kU.f] { @raw8w\Zj+ WriteLog(TraceLevel.Warning, message); QT!!
KT
f } ZmJ!ZKKch (W=J3?hn /// <summary> Sr9)i8x{ /// 将提示信息记录到Win2000/NT事件日志中 |zJxR_) /// <param name="message">需要记录的文本信息</param> 1;e"3x" /// </summary> %syFHUBw public static void WriteInfo(String message) ,KM-DCwcG
{ AK7IPftlH WriteLog(TraceLevel.Info, message); iyj,0T } Awip qDAu /// <summary> PYOU=R%o`8 /// 将跟踪信息记录到Win2000/NT事件日志中 `|t X[': /// <param name="message">需要记录的文本信息</param> UG]]Vk1d] /// </summary> t *8k3" public static void WriteTrace(String message) yMJY6$Ct { cz2guUu WriteLog(TraceLevel.Verbose, message); aMUy^>
} %lr<; I6k S1 /// <summary> GaD]qeS-K /// 格式化记录到事件日志的文本信息格式 86]})H /// <param name="ex">需要格式化的异常对象</param> YTQom!O /// <param name="catchInfo">异常信息标题字符串.</param> UL46%MFQ
\ /// <retvalue> &WqKsH$ /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para> dzK]F/L] /// </retvalue> vlHE\%{ /// </summary> h`_@eax public static String FormatException(Exception ex, String catchInfo) <@Lw ' { Ap{2*o StringBuilder strBuilder = new StringBuilder(); P3due|4M if (catchInfo != String.Empty) FY^#%0~ { ~#doJ:^H3 strBuilder.Append(catchInfo).Append("\r\n"); #^\qFj } SS4'yaQ strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace); AADvk_R return strBuilder.ToString(); WWO@ULGY } # j=r A?
=(q /// <summary> ";)SA,Z /// 实际事件日志写入方法 ~-"<)XPe /// <param name="level">要记录信息的级别(error,warning,info,trace).</param> UF
g N@ /// <param name="messageText">要记录的文本.</param> ' O\me /// </summary> 12NV private static void WriteLog(TraceLevel level, String messageText) 4_#yl9+ { )u. ut8![T try M5SA
lj { `OY_v=} EventLogEntryType LogEntryType; B{D!5{t switch (level) Hkc:B/6 { nUAs:Q case TraceLevel.Error: E&?z-,-o@ LogEntryType = EventLogEntryType.Error; kUl:Yj=& break; b,?@_*qv+ case TraceLevel.Warning:
QE:%uT LogEntryType = EventLogEntryType.Warning; aB`x5vg7ho break; n9J.]+@J case TraceLevel.Info: =Vgj=19X( LogEntryType = EventLogEntryType.Information; Unl6?_ break; va(ZGGS]N case TraceLevel.Verbose: ;tS 4h LogEntryType = EventLogEntryType.SuccessAudit; -3M6[`/ break; Min^EAG@ default:
e3+'m LogEntryType = EventLogEntryType.SuccessAudit; py,B6UB5 break; |eEcEu?/b } zc<C %t[~y [!@&t:A EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName ); 0]dL;~0y. //写入事件日志 kf3yJP/ eventLog.WriteEntry(messageText, LogEntryType); y;N[#hY#CD z 0;+.E! } u vo2W
! catch {} //忽略任何异常 MIcF"fB![ } wv 7jES } //class ApplicationLog OzFA>FK0f; }
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[楼 主]
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Posted: 2006-04-03 13:58 |
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