1. 打开新的窗口并传送参数:
[,As;a*o i*ErxWzu 传送参数:
/r@~"Rx ' response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
h;?H4j 1/%g
VB8 接收参数:
LyWgaf#/d string a = Request.QueryString("id");
Rt2<F-gY string b = Request.QueryString("id1");
Fl0 :Z .sR=Mf7 T 2.为按钮添加对话框
urA
kV#d# Button1.Attributes.Add("onclick","return confirm(’确认?’)");
z*B-`i. button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
TG@ W:>N( 2UJjYrm 3.删除表格选定记录
)7}f. int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
)=@SA`J string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
=9y&j-F 5x/LHsr=m 4.删除表格记录警告
WXX)_L$2 private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
/7[X_)OG {
c#YW>( switch(e.Item.ItemType)
qxW^\u!< {
"0]s|ys6< case ListItemType.Item :
.P5OUK case ListItemType.AlternatingItem :
3C7}V{? case ListItemType.EditItem:
nYbI =_- TableCell myTableCell;
(n0h#% myTableCell = e.Item.Cells[14];
Z %\*\6L) LinkButton myDeleteButton ;
"D1u2>( myDeleteButton = (LinkButton)myTableCell.Controls[0];
\4 5%K|
myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
UG:S! w' break;
nht?58 default:
bIP%xl
Vp break;
k;c>=B)e }
>y{oC5S 0JS#{EDh+ }
(f `zd. _,{R3k 5.点击表格行链接另一页
u#r[JF9LP private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
+4]31d&3 {
h}knn3"S //点击表格打开
Q8> if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
"ukiuCfVuW e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
M:QM*?+) }
3yp?|>e &x>8
%Q s 双击表格连接到另一页
&2\^S+4 LL"c 9jb4z 在itemDataBind事件中
X8Y)5,`s if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
R-lpsvDDL2 {
t+<?$I[ string OrderItemID =e.item.cells[1].Text;
>IFqwh7b ...
W&`{3L e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
1Q>D^yPI[ }
Y `ySNC E@%9u# 双击表格打开新一页
Tw+V$:$$ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
nXFPoR)T {
(`me}8 string OrderItemID =e.item.cells[1].Text;
xq-TT2}<L ...
' zz^!@ e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
%Z]c[V. }
Bt[Wh@ lJIcU
RI4 ★特别注意:【?id=】 处不能为 【?id =】
!Pf6UNN' 6.表格超连接列传递参数
|(77ao3 <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
{Ne5*HFV <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
aRE%(-5 .bloaeu- 7.表格点击改变颜色
)Lb?ZXT3 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
g;mX {p_@ {
fs,]%g^ e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
jhF&
this.style.color=’buttontext’;this.style.cursor=’default’;");
X5w_ }Nhe }
])tUXU> }{y(&Oy3Y 写在DataGrid的_ItemDataBound里
7*I:cga if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
)p!.V(, {
=Owr
l'@|T e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
v-ZTl4j$ this.style.color=’buttontext’;this.style.cursor=’default’;");
-J'0qN! e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
c%x9.s<+1 }
#Bo3:B8 r~q3nIe/, -XNawpl` 8.关于日期格式
XT` 2Z= 4];<`
% 日期格式设定
,d`6
{ll DataFormatString="{0:yyyy-MM-dd}"
YHQvx_0yP tRu j}n+x 我觉得应该在itembound事件中
Uy98lv e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
@t{`KB+
^ "OWW -m 9.获取错误信息并到指定页面
-|g9__|@ =V>inH 不要使用Response.Redirect,而应该使用Server.Transfer
"J"RH:$v U!O"f e.g
Gr8%%]1!0 // in global.asax
?mn&b G protected void Application_Error(Object sender, EventArgs e) {
K=N8O8R$y if (Server.GetLastError() is HttpUnhandledException)
KEfwsNSc% Server.Transfer("MyErrorPage.aspx");
pG(Fw> W87kE?, //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
4H*M^?h\# }
h-+vNhH ?d' vIpzO! 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
U+-R2w]#q_ 7#+>1 "\ 10.清空Cookie
C'.^2s#e8 Cookie.Expires=[DateTime];
'PWX19 Response.Cookies("UserName").Expires = 0
y%!zXK`cl] {!>'#
F^e 11.自定义异常处理
:`B70D8ku //自定义异常处理类
*4OB
88$ using System;
w`I+4&/h using System.Diagnostics;
1A}#j WJTc/ namespace MyAppException
MREB {
>UnLq:G /// <summary>
]O&\P n0q /// 从系统异常类ApplicationException继承的应用程序异常处理类。
3Pgld*i7 /// 自动将异常内容记录到Windows NT/2000的应用程序日志
^y.|KA3[ /// </summary>
!S#K6: public class AppException:System.ApplicationException
L};P*{q2Z {
3g87i r public AppException()
a[=;6! {
}fZ~HqS2w if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
P!u0_6 }
g&r3; !QlCt>{ public AppException(string message)
t03T1.:(Mg {
{J*|)-eAw LogEvent(message);
45Lzq6 }
^Eif~v te;VGpv. public AppException(string message,Exception innerException)
:_[pZ;-@ {
y*e({fio_ LogEvent(message);
sL],@z8<k if (innerException != null)
{RN-rF3w {
sB0m^Y' LogEvent(innerException.Message);
JH._/I
}
3}5Ya\x }
}CM#jN?( BVG.ZZR}) //日志记录类
2(km]H^ using System;
N{H#j6QW using System.Configuration;
m:Fdgu9 using System.Diagnostics;
<9]J/w+ using System.IO;
MDCwgNPiQW using System.Text;
H"c2kno9 using System.Threading;
nCDG PzJ A"/|h]. namespace MyEventLog
/h 4rW>8D2 {
qRL45[ K /// <summary>
Ac'pu,v /// 事件日志记录类,提供事件日志记录支持
gjzU%{T? /// <remarks>
',!>9Dj /// 定义了4个日志记录方法 (error, warning, info, trace)
r0s(MyI /// </remarks>
{hoe^07XK /// </summary>
4+:'$Nw public class ApplicationLog
umN4|X {
^t?vv;@} /// <summary>
7LsVlT[ /// 将错误信息记录到Win2000/NT事件日志中
<07]w$m/ /// <param name="message">需要记录的文本信息</param>
JC#5CCz /// </summary>
ujf7r`;u. public static void WriteError(String message)
0:$pJtx" {
R-tZC9
@ WriteLog(TraceLevel.Error, message);
_k#!^AJ}x }
&q +l5L" ]IH1_?HgP7 /// <summary>
?8FJMFv;4% /// 将警告信息记录到Win2000/NT事件日志中
%$N,6}n /// <param name="message">需要记录的文本信息</param>
q4g)/x%nc /// </summary>
{a]u public static void WriteWarning(String message)
Bm;:
cmB0e {
+zK?1llt WriteLog(TraceLevel.Warning, message);
EY0,Q { }
84coi e?pQuF~ /// <summary>
t/@t_6m}* /// 将提示信息记录到Win2000/NT事件日志中
i,rX.K}X /// <param name="message">需要记录的文本信息</param>
+&G]\WX< /// </summary>
X6=o vm public static void WriteInfo(String message)
LTuT"}dT[ {
%CQv&d2 WriteLog(TraceLevel.Info, message);
r}}2Kl }
!6hV|2aJy /// <summary>
^91Ae!)d /// 将跟踪信息记录到Win2000/NT事件日志中
~=9S AJr] /// <param name="message">需要记录的文本信息</param>
F<b/)<Bm= /// </summary>
yq[.
WPve public static void WriteTrace(String message)
:<HLw.4O {
yb,$UT"] WriteLog(TraceLevel.Verbose, message);
WM7LCP }
*JAC+<~d GI>(S /// <summary>
[=cYsW%WG /// 格式化记录到事件日志的文本信息格式
Awr(}){ /// <param name="ex">需要格式化的异常对象</param>
@"H7Q1Hg!* /// <param name="catchInfo">异常信息标题字符串.</param>
7~);,#[ky /// <retvalue>
Eqi;m,) /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
pG22Nx /// </retvalue>
JvNd'u)Z< /// </summary>
3p]\l ]= public static String FormatException(Exception ex, String catchInfo)
<
<F {
AR{$P6u!%| StringBuilder strBuilder = new StringBuilder();
t{,e{oZx if (catchInfo != String.Empty)
(M<l}pl) {
SVObJsB^ strBuilder.Append(catchInfo).Append("\r\n");
BAi`{?z$< }
4q.yp0E strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
5F!i%{XQvm return strBuilder.ToString();
I@IE0+ [n }
gX*j|(r 0|g@;Pc /// <summary>
Yj'"Wg /// 实际事件日志写入方法
(EjlnG}5l /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
Z?'?|vM /// <param name="messageText">要记录的文本.</param>
,/kZt! /// </summary>
g~U<0+&yw% private static void WriteLog(TraceLevel level, String messageText)
KpDb%j {
*3s-=.U~ try
+hX= {
))<vCfuz2 EventLogEntryType LogEntryType;
Z!*6;[]SfG switch (level)
AMASh* {
1 ^30]2'_ case TraceLevel.Error:
Uy*d@vU9c LogEntryType = EventLogEntryType.Error;
YT,yRV9# break;
R / ND f` case TraceLevel.Warning:
A~X\ dcn LogEntryType = EventLogEntryType.Warning;
=yoR>llbBC break;
a8-V` case TraceLevel.Info:
/F46Ac}I LogEntryType = EventLogEntryType.Information;
<H{K&,Z(ZM break;
lnK case TraceLevel.Verbose:
7{7Y[F0 LogEntryType = EventLogEntryType.SuccessAudit;
9E Y`j,{4 break;
]{|lGtK % default:
\En"=)A LogEntryType = EventLogEntryType.SuccessAudit;
~gHn>]S0 break;
<L<^uFB }
5<Uh2c HXC\``E EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
$G{j[iLY //写入事件日志
Z1:<i*6>D eventLog.WriteEntry(messageText, LogEntryType);
_+Sf+ta k_uI&, }
o7WAH@g catch {} //忽略任何异常
B#+n$5#FK }
4jGN:*kZ } //class ApplicationLog
fE_%,DJE( }
fK *l?Hr Zu~w:uNmU 12.Panel 横向滚动,纵向自动扩展
/y|ZAN <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
E'98JZ5ga )=`DEbT 13.回车转换成Tab
)WW*X6[k <script language="javascript" for="document" event="onkeydown">
Lusd kc7 if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
ofw&?Sk0 event.keyCode=9;
%d*0"<v </script>
l9OpaOVfJ Dsn=fht onkeydown="if(event.keyCode==13) event.keyCode=9"
m*CW3y{n) ^fH)E"qq5 14.DataGrid超级连接列
d{t@+}0.u DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
pzoh9}bue ]9)iBvQlj 15.DataGrid行随鼠标变色
#sBL E private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
6 eu7&Kj' {
iH@u3[w if (e.Item.ItemType!=ListItemType.Header)
xx|D#Z}G {
YllZ5<} e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
#5kclu%L$ e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
N~fE&@- }
ULBEe@s }
jT< I`K* ?1c7wEk 16.模板列
;(J&% <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
'/t9#I@G\ <ITEMTEMPLATE>
hdcB*j?4 <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
>HRNB&]LdP </ITEMTEMPLATE>
')~V=F </ASP:TEMPLATECOLUMN>
t'0&n3 UNwjx7usD <ASP:TEMPLATECOLUMN headertext="选中">
BDzAmrO< <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
=S\^j" <ITEMTEMPLATE>
v\MQ?VC <ASP:CHECKBOX id="chkExport" runat="server" />
Q4L=]qc T </ITEMTEMPLATE>
C.":2F;-e <EDITITEMTEMPLATE>
U<Qi`uoj! <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
>)='.aR< </EDITITEMTEMPLATE>
<66%(J> </ASP:TEMPLATECOLUMN>
TC44*BHq B!;:,(S~ 后台代码
r_T"b protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
r@]`#PL {
,x!r^YO= //改变列的选定,实现全选或全不选。
oXqJypR 2 CheckBox chkExport ;
],[<^=| if( CheckAll.Checked)
,
V,Q(!$F {
TBQ68o foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
D`!BjhlW
{
XP0;Q;WF} chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
VpAwvMw chkExport.Checked = true;
X%znNx }
O(2c_! d }
A+foc5B else
W)J5[p? {
P0(LdZH6u foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
@1&"S7@}u {
?u?mSO/ chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
r|*_KQq chkExport.Checked = false;
9`
UbsxFl }
@t1pB]O: }
q5hE S }
mSYm18
>5Lp; 17.数字格式化
`q*p-Ju' ~x/ka43 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
dlCiqY:} <%#Container.DataItem("price","{0:¥#,##0.00}")%>
=T6 ~89 ^b`-zFL7 int i=123456;
~_"V7 string s=i.ToString("###,###.00");
[>pBz3fn, +WR?<*_ 18.日期格式化
F=w:!tqA kZ)}tA7j 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
WFV'^-4 k'N``. 显示为: 2004-8-11 19:44:28
\}W3\To_ RXcN<Y&
我只想要:2004-8-11 】
7B\NP`l <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
.K(9=yh [kqtkgK$j2 应该如何改?
r)Lm| S
R"JXWw 【格式化日期】
);JWrkpz 1L'Q;?&2H, 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
bEmN
tp^ IzUpkwN 【日期的验证表达式】
z80FMulO Cd=$XJ-b A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
];6955I! ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
czu9a"M>X SpU|Q1Q/h B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
:Z2997@Y ^\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]))$
[a!AKkj 6("bdx;! 【大小写转换】
# |(>UM\ HttpUtility.HtmlEncode(string);
Z : xb8]y HttpUtility.HtmlDecode(string)
G'}N ?8s1 dL'oKh, 19.如何设定全局变量
|?{V-L +y'2 h%>h[ Global.asax中
cAwqIihZ nh@JGy*L Application_Start()事件中
0x5Ax=ut j\bp#+ 添加Application[属性名] = xxx;
$H)!h^7^9 )$i,e`T
就是你的全局变量
+"BJjxG [ei~Xkzkj 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
%s+'"E"E R6fkc^ HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
Nj2l>[L; ilJ`_QN 【ASPNETMENU】点击菜单项弹出新窗口
g~.#.S ds Lp(`m=;O 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
bfoTGi
<?xml version="1.0" encoding="GB2312"?>
uHZ4
@w: <MenuData ImagesBaseURL="images/">
6.KEe^[- <MenuGroup>
]
L#c
<0 <MenuItem Label="内参信息" URL="Infomation.aspx" >
Jh&DL8` <MenuGroup ID="BBC">
: Bo <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
xxl|j$m <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
e/:? 9 ......
NNqvjM- |,oLZCNa 最好将你的aspnetmenu升级到1.2版
!i (V.A V-go?b` 21.读取DataGrid控件TextBox值
2P8wvNDG foreach(DataGrid dgi in yourDataGrid.Items)
eCN: {
h~9P34m TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
F$
G)vskd tb.Text....
'5$@I{z }
k]r4b`x` C^4,L
\E 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
3fQ`}OcNr 7* Y*_cH5 〖思归〗
5rck]L' <asp:TemplateColumn HeaderText="数量">
|36%B7H <ItemTemplate>
d;gs1]E50 <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
PcT] onkeyup="javascript:DoCal()"
~>9G\/u j />
ZpOME@9, ]*k ~jY, <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
rYdNn0mhk </ItemTemplate>
`3VI9GmQ </asp:TemplateColumn>
<2 [vR|Q* >5kz#|@P <asp:TemplateColumn HeaderText="单价">
>%92,hg <ItemTemplate>
@Z'i7Z <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
d@{12hq onkeyup="javascript:DoCal()"
^1Fzs(#. />
W&9qgbO] ,qp8Rg|3j <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
3]JJCaf ."BXA8c;A </ItemTemplate>
juF=ZW%i </asp:TemplateColumn>
5&EBUl} 3$YbEl@# <asp:TemplateColumn HeaderText="金额">
L7(FDv,? <ItemTemplate>
U7n#TPet <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
}2RbX,0l9 </ItemTemplate>
nF]R" </asp:TemplateColumn><script language="javascript">
K{DmMi];I function DoCal()
&XcPHZy' {
)Z/w|5< var e = event.srcElement;
Pm2LB<qS var row = e.parentNode.parentNode;
'do2n/ var txts = row.all.tags("INPUT");
Uq'W<.v5 if (!txts.length || txts.length < 3)
S{e3aqT#N return;
9<3}zwJ P#!gP3 var q = txts[txts.length-3].value;
m5N,[^- var p = txts[txts.length-2].value;
)ADI[+KW _MIheCvV if (isNaN(q) || isNaN(p))
:'<;]~f return;
/P9fcNP{y B;8Zl m9 q = parseInt(q);
v07A3oj p = parseFloat(p);
R|)l^~x H"w;~;h txts[txts.length-1].value = (q * p).toFixed(2);
ESoC7d&.K{ }
`.~S/$a.& </script>
"dt}k$Gr nTGf ~Y~M}4 (:E@kpK S`b!sT-sD 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。
;J+iwS*Z page_load
s Adb0 A page.smartNavigation=true
}8}`A\dgV J^#g?RHN>m 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 ?
\DE,
, private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
fNx!'{o" {
~V ?z!3r-) for(int i=0;i<e.Item.Cells.Count-1;i++)
@.k^ 8hc if(e.Item.ItemType==ListItemType.EditType)
> fV"bj. {
2<8l&2}7] e.Item.Cells.Attributes.Add("Width", "80px")
|LLpG37_ }
#=)>,6Zw }
.UX4p
= \5<Z [#{ 26.对话框
->;2CcpHB private static string ScriptBegin = "<script language=\"JavaScript\">";
g.62XZF@ private static string ScriptEnd = "</script>";
qk^/&j |/xA5_-N public static void ConfirmMessageBox(string PageTarget,string Content)
~};q/-[r {
WY@g=W>+ string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
JBc*m *wJz0ex7R/ ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
_(:$
:*@ vc3r [mT Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
fH9"sBiO ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
_XY(Qd //Response.Write(strScript);
KCZ<#ca^ }
jbZTlG Mby4(M+&n 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
m0.g}N-w j$6Q]5KdoS 1.1 取当前年月日时分秒
ps` j>vX* currentTime=System.DateTime.Now;
hop|
xtai; 2)$-L'YS 1.2 取当前年
]FvGAG.* int 年= DateTime.Now.Year;
K7{B!kX4k FY)]yz 1.3 取当前月
gWj r|m< int 月= DateTime.Now.Month;
%{V7|Azt DS@Yto 1.4 取当前日
!^NZp%Yd int 日= DateTime.Now.Day;
oXk6,b" 4=y&}3om(0 1.5 取当前时
as/PM" int 时= DateTime.Now.Hour;
Y%TY%"< @aFk|.6 1.6 取当前分
WO!OaC?+B, int 分= DateTime.Now.Minute;
<f.Eog .dxELSV 1.7 取当前秒
{gu3KV int 秒= DateTime.Now.Second;
|}YxxeAk G9jf]Ye; 1.8 取当前毫秒
)'7Qd(4WT int 毫秒= DateTime.Now.Millisecond;
?A .ah /7+b.h])^ 28.自定义分页代码:
=\ 5f_g2M G[u6X_Q 先定义变量 :
tZg)VJQys public static int pageCount; //总页面数
vy={ziJ public static int curPageIndex=1; //当前页面
pNQ7uy |Go$z3bx 下一页:
aTH$+f1?Q if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
!RwhVaSh {
y.8nzlkE{ DataGrid1.CurrentPageIndex += 1;
74
)G.! curPageIndex+=1;
Tu}EAr }
=\)zb '\=d };P=|t(r bind(); // DataGrid1数据绑定函数
rxy5Nrue 8a8D0}' 上一页:
Ie _{P&J if(DataGrid1.CurrentPageIndex >0)
)ryP K"V {
D ZZRu8~ DataGrid1.CurrentPageIndex += 1;
_p9"MU&} curPageIndex-=1;
^PJN$BJx }
7cB{Iq0+ BOA7@Zaa$p bind(); // DataGrid1数据绑定函数
%yfl-c(u !:esdJH 直接页面跳转:
"s zJ[
_B int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
e$Yvy>I'tS /$\8?<Pc". if(a<DataGrid1.PageCount)
-,g.39u {
/yx)_x{ this.DataGrid1.CurrentPageIndex=a;
qJonzFp7 }
#CyqiOM\* 8*B+@` bind();
*6=9 8C4I NZ!I > 29.DataGrid使用:
KC(z TY .EjR<UU 添加删除确认:
)^6Os2 private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
H;tE= {
\K%M.>]vq foreach(DataGridItem di in this.DataGrid1.Items)
1L7^g* {
y[AB,Dd if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
uD{ xs {
s0x/2z ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
kv?DE4=; }
a{JO8<dlm }
/yY} .S }
>YF=6zq.` i!RYrae 样式交替:
k w
ListItemType itemType = e.Item.ItemType;
WMWMb3 uT<<G)v) if (itemType == ListItemType.Item )
@8A[HP {
nr}Ols e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
~MYE8xrId e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
o"A)t= }
Q^05n$ tI else if( itemType == ListItemType.AlternatingItem)
BYa#<jXtAT {
0mmHN`< e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
gnxD'1_ e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
r[GH#vF;7 }
XsFzSm Pq(LW( 添加一个编号列:
cyabqx DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
ke<5]&x DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
[>3dhj[; }?+tX <j for(int i=0;i<dt.Rows.Count;i++)
=43NSY {
^\J-LU|"B dt.Rows["number"]=(i+1).ToString();
n^5Q
f\ o }
1Qz@ G^dzE/: DataGrid1.DataSource=dt;
Z
d@B6R DataGrid1.DataBind();
]Ge>S?u ryA+Lli. DataGrid1中添加一个CheckBox,页面中添加一个全选框
=d:3]M^ private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
>NV1#\5_R@ {
oEFo7X`t foreach(DataGridItem thisitem in DataGrid1.Items)
K3,PmI&W
{
oJ"D5d, ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
W5:fY>7 }
U&a(WQV9& }
^L7!lzyo Zt=P 0 将当前页面中DataGrid1显示的数据全部删除
Wyeb1 foreach(DataGridItem thisitem in DataGrid1.Items)
Q&?0 ^;r {
@>J(1{m=Gy if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
3/]FT#l]i {
X{ 6a string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
BB(v,W Del (strloginid); //删除函数
DVKb`KJ" }
`R.Pz _oe }
T,vh=UF%] Q|S>C%4? 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)
|90X_6( du#f_|xG 在Application_Start中添加以下代码:
Rr[Wka9[ Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
, `EOJ"| AppSettings["ConnStr"].ToString();
C-h?#/#?y . n)R@&9 31. 变量.ToString()
Zkqq< DxpJP,wY3 字符型转换 转为字符串
,\aLv
12345.ToString("n"); //生成 12,345.00
d\JBjT1g 12345.ToString("C"); //生成 ¥12,345.00
Ld/6{w4ir 12345.ToString("e"); //生成 1.234500e+004
imAOYEH7} 12345.ToString("f4"); //生成 12345.0000
&}pF6eIar 12345.ToString("x"); //生成 3039 (16进制)
3Lq9pdM>2@ 12345.ToString("p"); //生成 1,234,500.00%
ux|
QGT2LY G#6Z@|kVw 32、变量.Substring(参数1,参数2);
KT >Y^ T0)bnjm 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);
)EKWsGNe/ .jtv Hr}U 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)
]+B.=mO_ <SCRIPT language="javascript">
t imY0fx# <!--
/;1O9HJa function gook(pws)
aIrM-c8.O {
ki/Cpfq40* frm.submit();
X7`-dSVE }
Oe
:S1 f //-->
6%>'n? 6?C';1 </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
dG]B-(WTC <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
IA[:-2_ <tr>
S $o1Q <td>
B'`25u_e< <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
EN":}!E: <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
g;nLR<] <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
v2p0EOS p4UEhT <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
fqq4Qc)#U& <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
S?C.: n00J21 </td>
'gg<)Bd DG0I-"s </tr>
6akI5\b $?]`2*i </form>
SBs! 52 S_OtY]gF 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
BT_XqO *n7=m=%) 下面是获取用户输入的登陆信息的代码:
(6:.u.b string name;
3;> z %{ name=Request.QueryString["EmailName"];
]j6K3 o^*: try
'`2MxRP {
S4{vS?>j int a=name.IndexOf("@",0,name.Length);
|B*B>P# f_user.Value=name.Substring(0,a);
ABkDOG2br f_domain.Value=name.Substring(a+1,name.Length-(a+1));
B7|%N=S%/ f_pass.Value=Request.QueryString["Psw"];
rBi<Yy$z }
r `n|fD. ^,AE;ZT7 catch
Dc$q0|N=z {
Pc< "qy Script.Alert("错误的邮箱!");
:9%e:- Server.Transfer("index.aspx");
c ^.^5@ }