1. 打开新的窗口并传送参数:
Zv@qdY<: S/E&&{`ls 传送参数:
.?u<|4jE6 response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
iYr)Ao5X >
'R{,1# U 接收参数:
TdPd8ig8{ string a = Request.QueryString("id");
"}3sL#|z string b = Request.QueryString("id1");
PSJj$bt;<+ #&.Znk:@.f 2.为按钮添加对话框
toA}0MI(: Button1.Attributes.Add("onclick","return confirm(’确认?’)");
4
{M button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
5{HF'1XgZ* H q6%$!q 3.删除表格选定记录
UV2W~g int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
}R;}d(C` string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
1WtE ]
D "w?0f[" 4.删除表格记录警告
tl_3 %$s private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
@g#5d|U); {
ejd_ 85$ switch(e.Item.ItemType)
$2uC%er"H {
myj/93p}`b case ListItemType.Item :
20}HTV{v case ListItemType.AlternatingItem :
>*EZZ\eU! case ListItemType.EditItem:
j/aJD E(+ TableCell myTableCell;
kEh\@x[ myTableCell = e.Item.Cells[14];
4ior LinkButton myDeleteButton ;
ovp/DM myDeleteButton = (LinkButton)myTableCell.Controls[0];
Qhj']>#g myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
1i#y>fUj break;
0PkX- . default:
i`+w.zJOH8 break;
qiet<F }
2B4.o*Q\ TyV~2pcN }
L!:NL#M :|(YlNUv 5.点击表格行链接另一页
)Ra:s> private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
eQi^d/yi {
L]MWdD //点击表格打开
K^!#;,0 if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
$]LS!@ Rm e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
V<
F&\ }
I3>8B N'y<<tTA 双击表格连接到另一页
N7s0Ua'-v Gbhw7
(& 在itemDataBind事件中
- ;gQy[U if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
'=;e#
C`<{ {
F`4W5~` string OrderItemID =e.item.cells[1].Text;
x:-NTW
-g ...
:Fhk$?/r e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
h2'6W) }
bf/6AY7 w!"A$+~ 双击表格打开新一页
Y%/RGYKh if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
4
Y=0>FlY0 {
] !*K|?VL string OrderItemID =e.item.cells[1].Text;
qeM DC#N ...
,esEh5=Ir e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
m%.4OXX"& }
80Y%C-Y: qoZi1,i' ★特别注意:【?id=】 处不能为 【?id =】
s O#cJAfuu 6.表格超连接列传递参数
/}1|'?P <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
d3z nb@7 <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
ovN3.0tAI HsYzIQLL 7.表格点击改变颜色
rd&d~R6 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
$W|JQ h {
,~cK]!:>s e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
6Mk#) ebM this.style.color=’buttontext’;this.style.cursor=’default’;");
; s(bd#Q }
sq=EL+=j V06*qQ[ 写在DataGrid的_ItemDataBound里
f&$Bjq if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
vFL$wr {
s 4rva G@a e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
jUE:QOfRib this.style.color=’buttontext’;this.style.cursor=’default’;");
>h8m8J e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
J,,VKA& }
9U; XcNL\fl1 "<|KR{/+ 8.关于日期格式
|-6`S1. 8G)~#;x1 日期格式设定
I._ A DataFormatString="{0:yyyy-MM-dd}"
}eSy]r[J =( ZOn=IL 我觉得应该在itembound事件中
346 z`5 e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
"yH?df24 UA'bE~i 9.获取错误信息并到指定页面
=ttD5p Re~6' 不要使用Response.Redirect,而应该使用Server.Transfer
dlvU=^G#G r3x;lICx- e.g
]+`K\G ^X // in global.asax
ds`YVXKH protected void Application_Error(Object sender, EventArgs e) {
FrMXf,} if (Server.GetLastError() is HttpUnhandledException)
T x
Mh_ Server.Transfer("MyErrorPage.aspx");
J8\l'}?& f~l pa7 //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
]?_~QE` }
1VYH:uGuAU $MvKwQ/ Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
D0 k ,8| kj2qX9Ms 10.清空Cookie
R<1%Gdz Cookie.Expires=[DateTime];
waz5+l28 Response.Cookies("UserName").Expires = 0
d(}?
\| 4w|t|? 11.自定义异常处理
ri-&3%%z< //自定义异常处理类
*b~8`Opa` using System;
pGU.+[|( using System.Diagnostics;
:o`
<CO {QG6ldI namespace MyAppException
IJ+} {
@G]*]rkKb /// <summary>
5.-:)= /// 从系统异常类ApplicationException继承的应用程序异常处理类。
Wk^{Tn/] /// 自动将异常内容记录到Windows NT/2000的应用程序日志
M%54FsV /// </summary>
jSBz),.XU} public class AppException:System.ApplicationException
R7b-/
!L {
"&XhMw4 public AppException()
,y"vf^BE. {
X)(K|[ if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
({Yfsf, }
3R$R?^G vD2(M1Q public AppException(string message)
U5ph4G {
'N6oXE LogEvent(message);
wGMoh.GTh }
M'|[:I.V f3,LX]zKA public AppException(string message,Exception innerException)
D$KP>G {
5WHqD!7u LogEvent(message);
*:\[;69[ if (innerException != null)
[A,!3BN {
s`Z.H5V>\ LogEvent(innerException.Message);
(e_p8[x }
Uun0FCA> }
^Rl?)_)1HE #N`MzmwS //日志记录类
731RqUR using System;
dj5|t~& using System.Configuration;
F@z%y'5 Z* using System.Diagnostics;
[ZG>FJDl8 using System.IO;
3bd`q
$ using System.Text;
w&}<b%l using System.Threading;
vx6lud0k} g~|vmVBua namespace MyEventLog
~f[;(?39xZ {
DdISJWc'`5 /// <summary>
+MYrNR.p /// 事件日志记录类,提供事件日志记录支持
5s%e9x|kP /// <remarks>
cJ?,\@uuP /// 定义了4个日志记录方法 (error, warning, info, trace)
_8SB+s* /// </remarks>
{{bwmNv" /// </summary>
=>o ! public class ApplicationLog
a`9pHH:7Q {
-#<{3BJTrz /// <summary>
p4\sKF8- /// 将错误信息记录到Win2000/NT事件日志中
y] 9/Xr/ /// <param name="message">需要记录的文本信息</param>
uDcs2^2l /// </summary>
9;n*u9< public static void WriteError(String message)
1W.oRD&8j/ {
E!WlQr:b$ WriteLog(TraceLevel.Error, message);
"7fEL:|j }
sm?b,T/ M4;M.zxJv /// <summary>
Z9h4 pd /// 将警告信息记录到Win2000/NT事件日志中
X16O9qsh /// <param name="message">需要记录的文本信息</param>
zZ Y1E@~ /// </summary>
@b2?BSdUp public static void WriteWarning(String message)
1Xh@x {
fwx^?/5j WriteLog(TraceLevel.Warning, message);
%#EzZD }
[#X}( E>E^t=;[ /// <summary>
it>Bf; /// 将提示信息记录到Win2000/NT事件日志中
y%
!.:7Y /// <param name="message">需要记录的文本信息</param>
$zhvI*0 /// </summary>
>X[:(m' public static void WriteInfo(String message)
ut]&3f'' {
iBWEZw) WriteLog(TraceLevel.Info, message);
ME)='~E }
lHliMBSc /// <summary>
Bn.R,B0PL /// 将跟踪信息记录到Win2000/NT事件日志中
E@Ewx;P5 /// <param name="message">需要记录的文本信息</param>
g@t..xJ, /// </summary>
B4zuWCE@ public static void WriteTrace(String message)
5KTFf6Uq {
?|`n&HrP WriteLog(TraceLevel.Verbose, message);
PxWH)4 }
&eO.h%@ &_@M
6[- /// <summary>
7^@ 1cA=S /// 格式化记录到事件日志的文本信息格式
#PC*l\
) /// <param name="ex">需要格式化的异常对象</param>
())_4 < /// <param name="catchInfo">异常信息标题字符串.</param>
!Dc;R+Ir0! /// <retvalue>
[EVyCIcY,h /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
C>-}BeY! /// </retvalue>
b9wC:NgQx /// </summary>
]f`UflMO8 public static String FormatException(Exception ex, String catchInfo)
F}F{/
{
s/3sOb}sA StringBuilder strBuilder = new StringBuilder();
"N EKz if (catchInfo != String.Empty)
4__HH~j ?Q {
lA6{TH.x strBuilder.Append(catchInfo).Append("\r\n");
'UGgY3 }
"9~KVILlLu strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
U5F1m]gFr return strBuilder.ToString();
9N2.:<so }
N!tNRMTi 3qV~C{S /// <summary>
"WPWMQ+ /// 实际事件日志写入方法
c>r~pY~$ /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
&P*r66 /// <param name="messageText">要记录的文本.</param>
Dl\0xcE /// </summary>
;_ 1Rk&o! private static void WriteLog(TraceLevel level, String messageText)
|<1A<fU8a {
uTl"4;&j try
,Cy&tRjR B {
m<;MOS EventLogEntryType LogEntryType;
ulEtZ#O{_ switch (level)
3+C;zDKa {
VVuNU"- case TraceLevel.Error:
f*m^x7 LogEntryType = EventLogEntryType.Error;
I;<__ break;
l4I',79l case TraceLevel.Warning:
Y_XRf8Sw LogEntryType = EventLogEntryType.Warning;
jrm^n_6}; break;
R(}!gv}s case TraceLevel.Info:
; d}n89DXj LogEntryType = EventLogEntryType.Information;
%X\Rfn0J" break;
A-^B?E case TraceLevel.Verbose:
hsK(09:J LogEntryType = EventLogEntryType.SuccessAudit;
ZXbq5p_ break;
b+dmJ]c default:
HR LogEntryType = EventLogEntryType.SuccessAudit;
?H{?jJj$H break;
ds2xl7jg }
:efDPNm5 jC-`u-_'j EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
h,/3} //写入事件日志
a94nB eventLog.WriteEntry(messageText, LogEntryType);
F"tM?V.| S4E@wLi }
'1G0YfG}n catch {} //忽略任何异常
D [v22 5 }
gaU^l73,C } //class ApplicationLog
S!iDPl~ }
CWD
$\K G D{+D.4\ 12.Panel 横向滚动,纵向自动扩展
cvpZF5mL]U <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
#m'+1 s L "/hLZl 13.回车转换成Tab
B\dhw@hM <script language="javascript" for="document" event="onkeydown">
1"1ElH if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
7=A @P event.keyCode=9;
@3I?T
Q1 </script>
K=P LOC5 u^L_X A onkeydown="if(event.keyCode==13) event.keyCode=9"
E/d\ebX| &';@CeK 14.DataGrid超级连接列
,` $2 DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
Gl T/JZ9 You~
6d6Om 15.DataGrid行随鼠标变色
Hxj8cXUF| private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
d%1Vby {
7z8 if (e.Item.ItemType!=ListItemType.Header)
6U] "i {
fa/p e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
$bk_%R}s e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
<@v|~AO4~ }
sgB|2cj;j }
:O*62olC5 z)*\njYe 16.模板列
.R@euIva <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
A+hT2Ew@t} <ITEMTEMPLATE>
9lX+?m~ ~ <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
*x. gPG </ITEMTEMPLATE>
?zK>[L </ASP:TEMPLATECOLUMN>
fydQaxCND ^Ov+n1,) <ASP:TEMPLATECOLUMN headertext="选中">
K$
|!IXs <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
#XAH`L\ <ITEMTEMPLATE>
u%CJjy <ASP:CHECKBOX id="chkExport" runat="server" />
[]H0{a2{< </ITEMTEMPLATE>
9sB LCZ <EDITITEMTEMPLATE>
p?+;[!: <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
u$1^= </EDITITEMTEMPLATE>
liH1r1M </ASP:TEMPLATECOLUMN>
;;zd/n2b v/G^yZa 后台代码
1h?:gOig protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
ze#ncnMo {
(/J %Huy //改变列的选定,实现全选或全不选。
{?uswbk. CheckBox chkExport ;
V} t8H if( CheckAll.Checked)
Ua>.k|>0 {
7FP
@ v ng foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
zm^5WH {
;:ocU? chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
8EZ,hY^ chkExport.Checked = true;
#r80FVwiD }
1);E!D[ }
8"x\kSMb else
z~yLc{M {
g);.".@" foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
N_y#Y{c{( {
xh!aB6m8R chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
vb k4 chkExport.Checked = false;
9B1bq # }
i8(n( }
Y/34~lhyl }
VN<baK%] U{-[lpd 17.数字格式化
$
4A!Y wEbO|S+K1 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
T04&Tl'CT <%#Container.DataItem("price","{0:¥#,##0.00}")%>
3-
4jSN\ yI*h"?7T
int i=123456;
^p #bxN") string s=i.ToString("###,###.00");
1s#GY<< v1Jg8L= 18.日期格式化
SCD;(I~4 %J|xPp) 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
5?gZw;yiv% K|{&SU_m 显示为: 2004-8-11 19:44:28
q|R$A8)L. 4S,/Z{ J. 我只想要:2004-8-11 】
#'h(o/hz&& <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
SrSm%Dv yg@}j 应该如何改?
M9sB2Ips< K/XUF#^B] 【格式化日期】
3x~AaC.j 15`,kJSK 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
}zV#?;} 3})0p 【日期的验证表达式】
1
,4V8gp &pLCN[a A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
]7_O#MY1 ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
97SG;,6 !fG`xZ~ B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
V@1K ^\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]))$
>oc&hT KXga{]G: 【大小写转换】
Zl`sY5{1 HttpUtility.HtmlEncode(string);
N`i`[ f HttpUtility.HtmlDecode(string)
STQ~mFs" {_*$X 19.如何设定全局变量
>{kPa| ~qmu?5 Global.asax中
vD4<G{ d9uT*5f Application_Start()事件中
9w,u4q
Ry iS 添加Application[属性名] = xxx;
4\EvJg@Z. 1'g{tP"d 就是你的全局变量
AA0zt N &>o?0A6 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
"J6aU lIF*$#`oh* HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
{uMqd-Uu FUU/=)^P$ 【ASPNETMENU】点击菜单项弹出新窗口
2T#>66^@q /w*;|4~Bf 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
Y=N; Bj <?xml version="1.0" encoding="GB2312"?>
<E&"] <MenuData ImagesBaseURL="images/">
k34!*(`q <MenuGroup>
LC:bHM,e <MenuItem Label="内参信息" URL="Infomation.aspx" >
N?;5%pG
< <MenuGroup ID="BBC">
B[Fuy y? <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
eFeWjB'<7 <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
#NLLlEE ......
jo8;S?+<|? h 66X746 最好将你的aspnetmenu升级到1.2版
}8qsE GCEq3
^/ 21.读取DataGrid控件TextBox值
-a$7b;gF foreach(DataGrid dgi in yourDataGrid.Items)
&OSyU4r {
6M758K6v TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
spt='!)4 tb.Text....
Ev;ocb, }
vVi))%&S( g$ oe00b 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
)z#M_[zC> ]w=6.LzO* 〖思归〗
juuV3et <asp:TemplateColumn HeaderText="数量">
iy_\1jB0 <ItemTemplate>
)vFZl] <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
(e;9,~u) onkeyup="javascript:DoCal()"
P>t[35/1 />
z~BrKdS |E)IJj
3 <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
2<@27C5 </ItemTemplate>
1y5$ </asp:TemplateColumn>
rpT{0>5 UMJ>6Ko8 <asp:TemplateColumn HeaderText="单价">
j\SW~}d9 <ItemTemplate>
cAE.I$T( <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
Y)I8(g}0 onkeyup="javascript:DoCal()"
8HLcDS# />
7E9h!<5v .1F^=C.w <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
H19CVc\B =Gq
'sy:h </ItemTemplate>
k(;c<Z{?1
</asp:TemplateColumn>
^f,('0p-> XHlx89v7 <asp:TemplateColumn HeaderText="金额">
+$+'|w <ItemTemplate>
Y(]&j`% <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
,1YnWy* </ItemTemplate>
#)BdN </asp:TemplateColumn><script language="javascript">
hFjXgpz5 function DoCal()
a,U =irBA {
%8V/QimHU var e = event.srcElement;
Pl
}dA var row = e.parentNode.parentNode;
7^~pOFdH var txts = row.all.tags("INPUT");
!Fz9\| if (!txts.length || txts.length < 3)
tU%-tlU9? return;
^m
EO;f`s)t var q = txts[txts.length-3].value;
fxQN var p = txts[txts.length-2].value;
f#p.=F$ >, &6zj if (isNaN(q) || isNaN(p))
#mX=Y>l return;
xe:
D7 o"x&F q = parseInt(q);
[D H@>:"dd p = parseFloat(p);
{O,Cc$_ ]AGJPuX txts[txts.length-1].value = (q * p).toFixed(2);
N+?kFob }
N3nk\)V\E </script>
OZ q/'* WbS2w @8 <bf^'$l ud`.}H~aB %Ya-;&;` 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
`
m`Sl[6 page_load
Iy](?b page.smartNavigation=true
E$FXs~a `oh'rm3'8 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
-NVk>ENL4 private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
)G6]r$M>o0 {
qfY.X&]PU for(int i=0;i<e.Item.Cells.Count-1;i++)
[JGa3e if(e.Item.ItemType==ListItemType.EditType)
*Df|D/,WE {
Y1
i! e.Item.Cells.Attributes.Add("Width", "80px")
nFlj`k<]Y }
g2hxWf" }
2WIbu-"l `\&qk)ZP 26.对话框
48n>[
FMSR private static string ScriptBegin = "<script language=\"JavaScript\">";
P,O9On private static string ScriptEnd = "</script>";
KW.S)+<H& s&lZxnIjc public static void ConfirmMessageBox(string PageTarget,string Content)
'8>#`Yba {
T"Wq: string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
)*^PMf -[a0\H ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
/s=TLPm 1C=}4^Pu Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
L`+\M+ ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
+gOCl*L //Response.Write(strScript);
*kxk@(lT? }
6yF4%Sz9 =?57*=]0M 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
HqU"iY>b 3;j?i<kM 1.1 取当前年月日时分秒
}_M.-Xm currentTime=System.DateTime.Now;
A{;b^IK ;=Bf&hY& 1.2 取当前年
-Tk~c1I#` int 年= DateTime.Now.Year;
ha'oLm# @yB!? x 1.3 取当前月
gB<p int 月= DateTime.Now.Month;
-^;G^Uq6= )j@k[}R#g 1.4 取当前日
}{Lf 4|8 int 日= DateTime.Now.Day;
-b(:kAwStk [/*854 1.5 取当前时
KI$?0O int 时= DateTime.Now.Hour;
|zvxKIW;wd y3$'
gu| 1.6 取当前分
\x x<\8Qr_ int 分= DateTime.Now.Minute;
qEf)TW( PF!Q2t5c3 1.7 取当前秒
s+^o[R
T3 int 秒= DateTime.Now.Second;
>lyUr*4PX mb?DnP,z 1.8 取当前毫秒
i2$U##-ro] int 毫秒= DateTime.Now.Millisecond;
d Z"bc]z{ vUgLWd 28.自定义分页代码:
{TdKS 6yTL7@V|B 先定义变量 :
CQ"IL;y public static int pageCount; //总页面数
GwwxSB&y public static int curPageIndex=1; //当前页面
4I^6[{_ F)_Rs5V:( 下一页:
N"T~U\R if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
_:M6~XHo {
pLBp[GQ DataGrid1.CurrentPageIndex += 1;
J*,Ed51&7 curPageIndex+=1;
c1CP12 }
%o#D" X\
\\RCp bind(); // DataGrid1数据绑定函数
N(}7M~m> &N*S
上一页:
0wZLkU_( if(DataGrid1.CurrentPageIndex >0)
?GD{}f33 {
ozkN&0 DataGrid1.CurrentPageIndex += 1;
rgIJ]vmy<H curPageIndex-=1;
J}`K&DtM9 }
< W/-[ M =t&B8+6 bind(); // DataGrid1数据绑定函数
*xU^e`P mbd 直接页面跳转:
Ps<)?q6( int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
{)ZbOq2 Zu\#;O if(a<DataGrid1.PageCount)
V>A@Sw {
0'BR Sa< this.DataGrid1.CurrentPageIndex=a;
2{XQDOyA
}
U`<EpO{j| Fdu0?H2TL bind();
J%f5NSSU{6 _ZzPy;[i? 29.DataGrid使用:
m]N4.J 9qQ_#$Vv 添加删除确认:
t wtGkkC private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
A0O$B7ylQ {
V[+ Pb] foreach(DataGridItem di in this.DataGrid1.Items)
Qh/yPOSm: {
in#qV if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
^bL.|vB {
eiP>?8 ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
kc|`VB8L }
3'u%[bx
E }
T_jwj
N }
=#T6,[5
5
;dg#hO 样式交替:
!&SUoa ListItemType itemType = e.Item.ItemType;
<B$Lu4b@c I g-VSQ if (itemType == ListItemType.Item )
Ao`9 fI#q {
;n7k_K#0z! e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
%>xW_5;Z e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
.b N0! }
"Oh-`C else if( itemType == ListItemType.AlternatingItem)
$CL=M {
Yq`r>g e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
#5G!lbH e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
[ "J }
k@4]s_2 79:x>i= 添加一个编号列:
,!%[CpM3 DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
MV9{>xX DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
Jev@IORN\ go2:D#mf for(int i=0;i<dt.Rows.Count;i++)
0
"pm7 {
b0LQ$XM>8 dt.Rows["number"]=(i+1).ToString();
aKH\8O4L5 }
(M.Sl O+.V,`O DataGrid1.DataSource=dt;
4d0PW#97. DataGrid1.DataBind();
wGnjuIR 3iH!;`i DataGrid1中添加一个CheckBox,页面中添加一个全选框
`j4ukOnG private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
C&<f YCwG {
)]>=Uo foreach(DataGridItem thisitem in DataGrid1.Items)
4vBZb^W;9 {
qh F/iUE ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
Xb$)}n\9 }
_a15R/S }
T{sw{E* Cd|V<BB9 将当前页面中DataGrid1显示的数据全部删除
IO^O9IEx, foreach(DataGridItem thisitem in DataGrid1.Items)
:8Q6=K87 {
6],5X^*Y if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
6G@_!i*2F {
Z?"Pkc.Ei string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
tBrd+}e2* Del (strloginid); //删除函数
r^*,eF }
B S b!{|] }
_6=6 b!hD wAk oX 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
[.Kia
> `jP\*k`~] 在Application_Start中添加以下代码:
#Y`U8n2F Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
20% xD e AppSettings["ConnStr"].ToString();
8{Zgvqbb z%*ZmF ^K 31. 变量.ToString()
O%0G37h wG^{Jf&@$ 字符型转换 转为字符串
!^l<jrM 12345.ToString("n"); //生成 12,345.00
J,{sRb% 12345.ToString("C"); //生成 ¥12,345.00
Rq4\~F? 12345.ToString("e"); //生成 1.234500e+004
H1hj` '\"< 12345.ToString("f4"); //生成 12345.0000
P}?,*'b 12345.ToString("x"); //生成 3039 (16进制)
L2Gm0 v 12345.ToString("p"); //生成 1,234,500.00%
8
A%)m 8uT@$./
32、变量.Substring(参数1,参数2);
#<v3G)|aS sFCoRH|"c 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
m:p1O3[R ]d% hU 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
8@b@y|#]X <SCRIPT language="javascript">
eW7;yH <!--
^P&y9dC. function gook(pws)
v
C><N {
93o}vy-> frm.submit();
:j?Lil%R }
=P0~=UP //-->
RE*UIh*O G.T}^xHmL </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
$+7MY-9T <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
=$b^X?x <tr>
6\b B#a <td>
LRB#|PW <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
\'E%ue_<9 <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
`+]4C+w <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
g%RL9-z wm8(Ju <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
qjUQ2d <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
Ds0^/bYp& W~dS8B=< </td>
U.?,vw'aai }@a_x,O/x} </tr>
9{xP~0g uN6TV*]: </form>
HAN#_B1. \t^q@}~0Wz 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
=$Xdn' ,}`II|.oB 下面是获取用户输入的登陆信息的代码:
h7I_{v8 string name;
I&R4.;LW name=Request.QueryString["EmailName"];
Ay2Vz>{ Wd&!##3$Q try
HPr5mWs: {
K.b-8NIUW int a=name.IndexOf("@",0,name.Length);
b_\aSEaTT f_user.Value=name.Substring(0,a);
rDUNA@r f_domain.Value=name.Substring(a+1,name.Length-(a+1));
Wx;9N f_pass.Value=Request.QueryString["Psw"];
0gfa7+Y }
>9Ub=tZm .T4"+FTzP catch
NaB8cLURp {
n1.]5c3p Script.Alert("错误的邮箱!");
;se-IDN Server.Transfer("index.aspx");
uK}k]x\z }