1. 打开新的窗口并传送参数:
pHb,*C</ |APOTQV 传送参数:
c
nv%J}wq response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
_,0.h*c /,uxj5_cT 接收参数:
_;^x^ string a = Request.QueryString("id");
Oto8?4[n string b = Request.QueryString("id1");
$X;OK vh&~Y].W Y 2.为按钮添加对话框
p@q20>^u Button1.Attributes.Add("onclick","return confirm(’确认?’)");
du}HTrsC button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
hd9~Zw]V Has}oe[ 3.删除表格选定记录
^L.I9a#]
int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
6oQ7u90z* string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
y`$qcEw {q$U\y%Rq 4.删除表格记录警告
0TV16-- private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
<t!0{FJ {
:9L}jz switch(e.Item.ItemType)
Ep;?%o ,G {
jTqJ(M}L case ListItemType.Item :
indbg
d case ListItemType.AlternatingItem :
@I1*b>X~< case ListItemType.EditItem:
Cp!9 "J: TableCell myTableCell;
:(OV{ u myTableCell = e.Item.Cells[14];
WwoT~O8R LinkButton myDeleteButton ;
&FRf-6/ myDeleteButton = (LinkButton)myTableCell.Controls[0];
}8l+Jd3" myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
0Y* "RbG break;
c"knzB vy default:
/|NyO+Io break;
n(z$u)Y }
XFs7kTY
c)Ef]E\ }
9wc\~5{li =>>Dnp 5.点击表格行链接另一页
K)l*$h&- private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
D`Vb3aNB=L {
?nu<)~r53 //点击表格打开
J
R~s`>2 if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
h8p{ e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
Xo(W\Pes }
jJYCGK$= g3vbskY| 双击表格连接到另一页
SZ4y\I <l,e6K 在itemDataBind事件中
c|m?f if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
tMU10=d {
@>'Wiq! string OrderItemID =e.item.cells[1].Text;
@o@SU"[?_ ...
SK/}bZ;f e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
HW_2!t_R }
_{^F8 -KbO[b\V 双击表格打开新一页
dUn]aS if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
[Z'4YXS {
2>x[_ string OrderItemID =e.item.cells[1].Text;
%NlmLWF. ...
SmyJ@.L" e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
4
}_}3. }
u-n$%yDS ZA_~o#0% ★特别注意:【?id=】 处不能为 【?id =】
$hk_v~zM 6.表格超连接列传递参数
>>R)?24,< <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
;1,#rTs <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
Y8s-cc( @:'E9J06 7.表格点击改变颜色
N8r+Q%ov if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
;$!0pxL)s {
%^I 7= e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
e6jdSn this.style.color=’buttontext’;this.style.cursor=’default’;");
xXV15%& }
b0%#=KMi gi@&Mr)fS 写在DataGrid的_ItemDataBound里
ou|3%&*" if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
b[n6L5P5m2 {
@ohJ' e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
'@hnqcqXq this.style.color=’buttontext’;this.style.cursor=’default’;");
A-\n"}4 e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
y fS }
[sPLu)q2 75Bn p9 Oh`Pf;.z% 8.关于日期格式
z;YX2G/{ 2j>C4Ck 日期格式设定
u4=ulgi DataFormatString="{0:yyyy-MM-dd}"
;rCCkA6 V^9%+L+E5 我觉得应该在itembound事件中
~te{9/ e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
/oM&29 jy 6NFLk+kqN 9.获取错误信息并到指定页面
2I4G=jM[ b;mpZ|T. 不要使用Response.Redirect,而应该使用Server.Transfer
WIwGw %_~ X~; *zYd5 e.g
;P|v'NNI // in global.asax
l_q1h]/
protected void Application_Error(Object sender, EventArgs e) {
jI}{0LW&F& if (Server.GetLastError() is HttpUnhandledException)
N~yGtnW Server.Transfer("MyErrorPage.aspx");
6Vu??qBy @yPI$"Ma //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
V3pn@'pr }
=8qhK=&] =PBJ+"DQs 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
^dhtc%
W> \w{fq+G 10.清空Cookie
$/JnYkL{m Cookie.Expires=[DateTime];
oB}rd9 Response.Cookies("UserName").Expires = 0
8=sMmpB 7u g'eJN 11.自定义异常处理
4~:D7",Jn //自定义异常处理类
s.}:!fBk using System;
~]K<Vh` using System.Diagnostics;
7XIG ne%v }W]k1Bsx namespace MyAppException
f7]C1!] {
f%d
=X>_ /// <summary>
#Bn7Cc /// 从系统异常类ApplicationException继承的应用程序异常处理类。
%}Ob~m>P /// 自动将异常内容记录到Windows NT/2000的应用程序日志
GZFLJu /// </summary>
na4^RPtN\e public class AppException:System.ApplicationException
Y2p~chx9 {
g!;Hv public AppException()
q/tC/V%@( {
2ld0w=?+eu if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
.3,Ow(3l }
p@xK`=Urb 5adB5)` public AppException(string message)
1Yv#4t {
[SLBA_d LogEvent(message);
I03
45Hc }
0l %|2}a ] yXrD`J! public AppException(string message,Exception innerException)
G Q+g.{c {
w.0]>/C LogEvent(message);
h5#V,$ if (innerException != null)
(V~PYf% {
{?'c|\n Li LogEvent(innerException.Message);
G9\@&= }
<wt9K2, }
W>7 o
ec )/<\|mR //日志记录类
B,dKpz;kFg using System;
ODqWXw# using System.Configuration;
6JL:p{RLi using System.Diagnostics;
v:]
AS: using System.IO;
TBqJ.a using System.Text;
Mio~CJ"? using System.Threading;
1G+?/w GwVSRI:[N namespace MyEventLog
AfW9;{j&I {
}h)[>I( /// <summary>
bQM_rqjJGw /// 事件日志记录类,提供事件日志记录支持
|[lM2 /// <remarks>
ddD $ 4+ /// 定义了4个日志记录方法 (error, warning, info, trace)
Z)zmT%t /// </remarks>
[HhdeLOX /// </summary>
U~8 oE_+ public class ApplicationLog
7[ra#>e8' {
S}*%l)vfR /// <summary>
@=[SsS /// 将错误信息记录到Win2000/NT事件日志中
)TcW.d6 /// <param name="message">需要记录的文本信息</param>
$r=Ud > /// </summary>
`5Qo*qx public static void WriteError(String message)
(yel {
Ot}
E WriteLog(TraceLevel.Error, message);
sj @'C@oK }
V<!E9/4rS fOyLBixR /// <summary>
m<;&B /// 将警告信息记录到Win2000/NT事件日志中
sf5koe /// <param name="message">需要记录的文本信息</param>
az]S&\i7T /// </summary>
=' cr@[~i public static void WriteWarning(String message)
=2eG j'} {
uU]4)Hp WriteLog(TraceLevel.Warning, message);
S)*eAON9 }
Qy @r& )#dP: /// <summary>
^25[%aJI /// 将提示信息记录到Win2000/NT事件日志中
?qQRA|n* /// <param name="message">需要记录的文本信息</param>
Q04iuhDO: /// </summary>
@GGPw9a public static void WriteInfo(String message)
vx_v/pD {
<3>Ou(F WriteLog(TraceLevel.Info, message);
AjZ@hid }
@`ttyI^1f /// <summary>
n'JwT!
A /// 将跟踪信息记录到Win2000/NT事件日志中
l~M86 h /// <param name="message">需要记录的文本信息</param>
3y?ig2 /// </summary>
eID"&SSU public static void WriteTrace(String message)
M+ gYKPP {
bd2"k;H<o WriteLog(TraceLevel.Verbose, message);
BS#@ehdig }
V4!RUqK Au,}5=+`P /// <summary>
+S:(cz80V /// 格式化记录到事件日志的文本信息格式
7b,u|F /// <param name="ex">需要格式化的异常对象</param>
fmvv
q1G& /// <param name="catchInfo">异常信息标题字符串.</param>
3L4lk8Dd /// <retvalue>
@W^A%6"j /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
Nze#u; /// </retvalue>
*"Ipu"G5? /// </summary>
U&/Jh^Yy public static String FormatException(Exception ex, String catchInfo)
-~
`5kO~ {
xU^Flw,4 StringBuilder strBuilder = new StringBuilder();
%
j7lLSusX if (catchInfo != String.Empty)
n5%rsNxg {
vGC^1AM strBuilder.Append(catchInfo).Append("\r\n");
)=X8kuB~ }
J%;TK6 strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
8lt P)K4 return strBuilder.ToString();
UtiS?w6 }
c`y[V6q9 G;MgrA#\ /// <summary>
>'8.>f /// 实际事件日志写入方法
A[ ZJS /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
o;\0xuM@ /// <param name="messageText">要记录的文本.</param>
h.g11xa /// </summary>
z$`=7 afp private static void WriteLog(TraceLevel level, String messageText)
^^%sPtp {
oHbEHS61 try
|]]Xee] {
z_<
7T4 EventLogEntryType LogEntryType;
)D@1V=9, switch (level)
^&DHBx"J {
$d!Sl
a case TraceLevel.Error:
![:S~x1 LogEntryType = EventLogEntryType.Error;
>u~ [{(d , break;
ALwkX"AN case TraceLevel.Warning:
vBQ5-00YY= LogEntryType = EventLogEntryType.Warning;
f
7et break;
W==HV0n case TraceLevel.Info:
F1)Q#ThF\ LogEntryType = EventLogEntryType.Information;
7
4aap2^ break;
klKAwC Q, case TraceLevel.Verbose:
,ibI@8;#~' LogEntryType = EventLogEntryType.SuccessAudit;
czb(&>< break;
X
c,UR. default:
}vxb, [# LogEntryType = EventLogEntryType.SuccessAudit;
_jK\+Zf break;
d^Ra1@0"q2 }
McxJ C< @| %t<{y^I EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
naXo <B //写入事件日志
DhY9)>4M eventLog.WriteEntry(messageText, LogEntryType);
av gGz8 nV
McHN }
HQaKG4Z catch {} //忽略任何异常
[lQp4xgxi }
,ye>D=' } //class ApplicationLog
%g0"Kj5 }
HHCsWe- c$?qN&X_K 12.Panel 横向滚动,纵向自动扩展
eP'e_E <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
nPfVZGt .
%tc7`k8 13.回车转换成Tab
).N }x^ <script language="javascript" for="document" event="onkeydown">
H<%7aOwO2 if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
?;|$R event.keyCode=9;
W&z.O </script>
X5qU>'?` \ H<'W" onkeydown="if(event.keyCode==13) event.keyCode=9"
Fmt5"3B mv SNKS 14.DataGrid超级连接列
phl5E:fIKx DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
2j4VW0: 5xLuu KG 15.DataGrid行随鼠标变色
<3
AkF# C9 private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
qp {
#TZYe4#f if (e.Item.ItemType!=ListItemType.Header)
05DK-Wh? {
i <bFF03*S e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
Puily9# e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
A<9ZX=DAjw }
cm-cwPAh }
%=S^{A isDBNXV: 16.模板列
*FK!^Y <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
iIcO_ZyA <ITEMTEMPLATE>
vsqfvx <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
(
y2%G=.j </ITEMTEMPLATE>
BA A)IQF </ASP:TEMPLATECOLUMN>
pL.r
9T. qK.8^{b <ASP:TEMPLATECOLUMN headertext="选中">
zg)Z2?K|;u <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
)3'/g`c <ITEMTEMPLATE>
%Ni)^ <ASP:CHECKBOX id="chkExport" runat="server" />
d@7
]=P: </ITEMTEMPLATE>
u{ JAC! <EDITITEMTEMPLATE>
opte)=]J <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
vs7Hg)F </EDITITEMTEMPLATE>
Ls5|4%+& </ASP:TEMPLATECOLUMN>
r$=iM:kERC %$`pD
I ) 后台代码
~BrERUk protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
c/x ^I{b* {
t$]lK6 //改变列的选定,实现全选或全不选。
iKLN !QR CheckBox chkExport ;
Wl;F]_|*( if( CheckAll.Checked)
(t>BO`, {
jNaK] foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
$MfHA~^ {
~U~KUL| chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
_?Rprmjx} chkExport.Checked = true;
c[3sg }
$;@^coz9U }
LUHj3H else
=> )l6**UE {
\n6#D7OV foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
9p+DAs{i {
CbS- Rz: chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
D;.-e chkExport.Checked = false;
n0>#?ek12 }
(O\5gAx }
zy }
$FNj>1 8}XtVF; 17.数字格式化
g9<*+fV
2$ }_@*, 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
9=ns.r <%#Container.DataItem("price","{0:¥#,##0.00}")%>
U;`N:~|p# r_@;eh int i=123456;
?Z.p.v string s=i.ToString("###,###.00");
% E3 (Z,v)TOXjV 18.日期格式化
PUuxKW} \WQ\q
\ 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
J)x-Yhe 4~P{H/] 显示为: 2004-8-11 19:44:28
$!G7u<`na i`z1if6O 我只想要:2004-8-11 】
?y>P <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
vYKKv%LE U rm&4&y 应该如何改?
[v^T]L CJz2.yd 【格式化日期】
8uP,#D<wZ GXr9J rs.e 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
K#%L6=t$< :p;!\4)u 【日期的验证表达式】
Ew*_@hVC Oq7M1|{ A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
"|{NRIE ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
(Dlh;Ic
r9 $.a<b^.Xi B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
I+rHb<
P% ^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$
_<6
^r s+#gH@c 【大小写转换】
IX$dDwY|O> HttpUtility.HtmlEncode(string);
-Ds}kdxw HttpUtility.HtmlDecode(string)
['~3"lK^O =kp#v 19.如何设定全局变量
f-F+Y`P xdFm-_\- Global.asax中
-y5^xR ^ r-F@$:. Application_Start()事件中
}3E@]"<cVR Oz'x5/%G 添加Application[属性名] = xxx;
EcxPbRg <1YINkRz 就是你的全局变量
:1^
R$0d $A;jl`ng 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
Iojyku\W.
[<