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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) Vd,' s 出处 qv
*3A?uzr fi=0{ 6.表格超连接列传递参数 8s<^]sFP 9*4 . <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’ q^5yk=2fq <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ /> <O.Kqk*
nq 7.表格点击改变颜色 Ski G2n] {{32jU7< if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) jk )Vb { ZI,j?i6\ e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’; ;> DHD*3X this.style.color=’buttontext’;this.style.cursor=’default’;"); W]_g4,T> } Kv}k*A% S 写在DataGrid的_ItemDataBound里 W@^J6sH _lXt8}:+ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem) (%bE~Q2P*< { COSTV>s; e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’; Y.>kO this.style.color=’buttontext’;this.style.cursor=’default’;"); \ZMP_UU
( e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;"); r?pZ72q } ll%G!VR ><=rIhG%H@ 8.关于日期格式 ?W!ry7gXO F}D3,&9N 日期格式设定 ox[ .)v 3V}(fnv DataFormatString="{0:yyyy-MM-dd}" o&z!6"S< 我觉得应该在itembound事件中 %G[/H.7s- -IU4#s e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd")) -w]/7cH 9.获取错误信息并到指定页面 O#EqG.L5 \lEkfcc 不要使用Response.Redirect,而应该使用Server.Transfer =We2^W-{ u]E.iX
p e.g =u=Kw R Uyk,.*8" // in global.asax =((yWn+t protected void Application_Error(Object sender, EventArgs e) { OxQYNi2 if (Server.GetLastError() is HttpUnhandledException) zTY;8r+ Server.Transfer("MyErrorPage.aspx"); Nqcp1J" 9i=B //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :) (.?
ZKL } w"8V0z 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 % (<(Y &RO7{,`
10.清空Cookie Svw<XJ ()\j
CNLT Cookie.Expires=[DateTime]; yMxTfR Response.Cookies("UserName").Expires = 0 (0L=AxH 11.自定义异常处理 "^Rv# wL3,g2- L //自定义异常处理类 1~\M!SQ) using System; ER^QV(IvP8 using System.Diagnostics; e
|V] (3;@^S4&w namespace MyAppException ~<)vKk { |PP.<ce\- /// <summary> q0./O|Dj /// 从系统异常类ApplicationException继承的应用程序异常处理类。 7\Fs=\2l+' /// 自动将异常内容记录到Windows NT/2000的应用程序日志 2K{6iw"h /// </summary> `A)"%~ public class AppException:System.ApplicationException wCCV2tk { 2@khSWV public AppException() X`JVR"=4
{ S6D^3n if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。"); Hd &{d+B } ,6,]#R
:J Q(Gl{#b public AppException(string message) GF$`BGW {
;\{`Ci\ LogEvent(message); ,S&z<S_ } V/%~F6e #FH[hRo=6 public AppException(string message,Exception innerException) ](jFwxU { '0Q, LogEvent(message); HM9fjl[ if (innerException != null) <AoXEuD { ]$b2a&
r9 LogEvent(innerException.Message); s:>\/[*>0c } h2Bz F } DN] v_u+} 5&!c7$K0 //日志记录类 9KuD(EJS using System; * ?Jz2[B using System.Configuration; WyhhCR=; using System.Diagnostics; s^8u&y)3 using System.IO; !|Q5Zi;aX7 using System.Text; 8V/L:h#7 using System.Threading; 9 ;i\g= ti @kKz namespace MyEventLog =/0=$\Ws { `I
tyi} /// <summary> o4y']JSN /// 事件日志记录类,提供事件日志记录支持 d^E [|w; /// <remarks> V ~{fB~ /// 定义了4个日志记录方法 (error, warning, info, trace) jNDx,7F- /// </remarks> GEUg]nw /// </summary> 0E`1HP"b public class ApplicationLog q8P.,%
{ rVnd0K /// <summary> _HOIT /// 将错误信息记录到Win2000/NT事件日志中 !^c@shLN4 /// <param name="message">需要记录的文本信息</param> ~wm;;#_O /// </summary> +kK public static void WriteError(String message) B=f,QU { ,MPB/j^o5! WriteLog(TraceLevel.Error, message); $g9**b@ } nuQ]8- , -_OS%ARa /// <summary> E>LkJSy= /// 将警告信息记录到Win2000/NT事件日志中 T4/fdORS /// <param name="message">需要记录的文本信息</param> n{0Ld -zH /// </summary> Uh
eC public static void WriteWarning(String message) 2NGeC0= { z+}QZ> WriteLog(TraceLevel.Warning, message); B<?[Mrdxw } .R*!aK O) |P,? /// <summary> 3chPY4~A /// 将提示信息记录到Win2000/NT事件日志中 sb_oD{+gW /// <param name="message">需要记录的文本信息</param> LWoG4s?w /// </summary> p^kUs0$GS public static void WriteInfo(String message) N{SQ(%V { ~[o4a ' WriteLog(TraceLevel.Info, message); `N//A}9 } U6ZR->: /// <summary> B5V_e!*5F* /// 将跟踪信息记录到Win2000/NT事件日志中 ^efb
5 /// <param name="message">需要记录的文本信息</param> `vG,}Pt] /// </summary> MTER(L public static void WriteTrace(String message) AE`We
$! { =h6
sPJ WriteLog(TraceLevel.Verbose, message); qW:)!z3\ }
X=JmF97 }eQRN<}P /// <summary> W%2
80\h /// 格式化记录到事件日志的文本信息格式 XY.5Rno4 /// <param name="ex">需要格式化的异常对象</param> \I-#1M /// <param name="catchInfo">异常信息标题字符串.</param> Xv
<G-N4 /// <retvalue> <}U'V}g /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para> =(a1+.O /// </retvalue> *%w69#D /// </summary> {qW~"z*
public static String FormatException(Exception ex, String catchInfo) b*;"q9u5 { ^,F;M`[ StringBuilder strBuilder = new StringBuilder(); $WYbm}j if (catchInfo != String.Empty) EV#MQM { -7/s]9o' strBuilder.Append(catchInfo).Append("\r\n"); <^b7cOFQ } 9][(Iu]h7 strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace); '\~$dtI$ return strBuilder.ToString(); L%v^s4@ } ONNpiK- 6)oLus /// <summary> lZ8CY /// 实际事件日志写入方法 lf>*Y.!@me /// <param name="level">要记录信息的级别(error,warning,info,trace).</param> [S.ZJUns /// <param name="messageText">要记录的文本.</param> < v]3g /// </summary> 2 oa#0`{ private static void WriteLog(TraceLevel level, String messageText) {GvTfZfp { "G-1>:
try gH2,\z`[4 { t
E` cau EventLogEntryType LogEntryType; y@j,a switch (level) Tu{
h<Zy { M3p case TraceLevel.Error: t1VH doNN LogEntryType = EventLogEntryType.Error; |K?#$~ break; bifS 2>c case TraceLevel.Warning: s[8@*/ds LogEntryType = EventLogEntryType.Warning; Auy_K?he] break; \MxoZ case TraceLevel.Info: DC1'Kyk LogEntryType = EventLogEntryType.Information; 9Rek4<5 break; Lokl2o` case TraceLevel.Verbose: /8VP[i)u LogEntryType = EventLogEntryType.SuccessAudit; )s1Ib4C break; }M1sksk5 default: |F.)zC5{ LogEntryType = EventLogEntryType.SuccessAudit; o!:8nXw break; J$~<V
IX } "cTncL
)1g"?] EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName ); LqdY Qd51 //写入事件日志 & cNy eventLog.WriteEntry(messageText, LogEntryType); pfx3C* a[lY S{ } 8Ld:"Y# catch {} //忽略任何异常 !v]b(z`Y } OMwsbp& } //class ApplicationLog X=8Y% }
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[楼 主]
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Posted: 2006-04-03 13:58 |
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