1. 打开新的窗口并传送参数:
O]l-4X#8F Q'[~$~&` 传送参数:
@"iNjqxh response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
z'zC r#d]"3tH 接收参数:
Xy9'JVV6 string a = Request.QueryString("id");
;1k_J~Qei string b = Request.QueryString("id1");
xM>dv5<E _he~Y2zFz 2.为按钮添加对话框
xEB4oQ5 Button1.Attributes.Add("onclick","return confirm(’确认?’)");
v%QCp button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
<#~n+, R%JEx3)0m 3.删除表格选定记录
USXPa[ int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
BbI),iP string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
}dSFv
Y5TBWcGU% 4.删除表格记录警告
(CE2]Nv9") private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
.yb8<q s {
s%?<:9 switch(e.Item.ItemType)
V{{UsEVO {
WX+@<y}% case ListItemType.Item :
t5QGXj case ListItemType.AlternatingItem :
FYK}AR<= case ListItemType.EditItem:
ve4QS P TableCell myTableCell;
*T{KpiuP myTableCell = e.Item.Cells[14];
Q8DKU LinkButton myDeleteButton ;
)EG-xo@X myDeleteButton = (LinkButton)myTableCell.Controls[0];
xH-} <7 myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
5;9.&f break;
)' 2vUt`_7 default:
5hB2:$C break;
DE?@8k }
=OR&,xt x_EU.924uY }
^Cg@'R9 NmN:x&/ 5.点击表格行链接另一页
6uFGq)4p@ private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
[ HjGdC {
=IIE]<z //点击表格打开
,=P0rbtK if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
Q?%v b e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
RHq r-% }
s3M#ua#mX sk. rJ 双击表格连接到另一页
[oH,FSuO!2 H/ub=,Ej* 在itemDataBind事件中
(7v`5|'0 if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
;"%luQA<w {
J1Y3>40 string OrderItemID =e.item.cells[1].Text;
NO#^_N`#\ ...
,0$b8lb;x/ e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
q5w)i }
/h@rLJ)o> @HXXhYH 双击表格打开新一页
%;G!gJeE
if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
yNQ 9~P2 {
N?Ss/by8Sg string OrderItemID =e.item.cells[1].Text;
Os1y8ui ...
`RE1q)o}8M e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
dGc>EZSdj }
5xG/>fn K9Pw10g' ★特别注意:【?id=】 处不能为 【?id =】
t{/
EN)J 6.表格超连接列传递参数
14\!FCe)! <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
o-t!z'\lO <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
yDw^xGws "?sLi 7.表格点击改变颜色
5{6ebq55" if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
nzu
3BVv {
H
%PIE1_ e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
Q_a%$a.rV this.style.color=’buttontext’;this.style.cursor=’default’;");
Y'%_-- }
^F1zkIE :Ee5:S 写在DataGrid的_ItemDataBound里
fKT(.VNq5 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
GgjBLe=C {
6d/b*,4[ e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
fmq^AnKd this.style.color=’buttontext’;this.style.cursor=’default’;");
FkT% -I e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
jfrUOl'l }
dzMI5fA<_ 4^B:Q9B) B6vmBmN 8.关于日期格式
';7|H|,F 8 _[f#s`) 日期格式设定
}(XvI^K[^ DataFormatString="{0:yyyy-MM-dd}"
c[0$8F> z'X_s.9F 我觉得应该在itembound事件中
:ui1]its4 e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
]#
T9v06w WJL,L[XC 9.获取错误信息并到指定页面
r^6vo6^ +NEP*mk 不要使用Response.Redirect,而应该使用Server.Transfer
&On0)G3Rc ByZ.!~ e.g
63-
YWhs; // in global.asax
9uREbip protected void Application_Error(Object sender, EventArgs e) {
]R{=| if (Server.GetLastError() is HttpUnhandledException)
?0Ca-T Rz Server.Transfer("MyErrorPage.aspx");
f1>^kl3@P M>k7
'@G //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
w02HSQ }
(;h]'I@ 5cQBqH] Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
9tC8|~Q UwQ3q 10.清空Cookie
Vt4}!b(O Cookie.Expires=[DateTime];
tg5jS]O Response.Cookies("UserName").Expires = 0
\>/:@4oK V2]S{!p}k 11.自定义异常处理
A1f]HT //自定义异常处理类
+CNRSq" using System;
I.e' using System.Diagnostics;
a^5`fA/L, E(U}$Zey namespace MyAppException
ddHIP`wb {
qkUr5^1 /// <summary>
@+X}O/74 /// 从系统异常类ApplicationException继承的应用程序异常处理类。
c)E[K-u /// 自动将异常内容记录到Windows NT/2000的应用程序日志
I}v'n{5( /// </summary>
Azz]TO public class AppException:System.ApplicationException
?3z+|;t6C {
IL:"]`f* public AppException()
A1ebXXD) {
p r0V) C6 if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
t1Khf }
X7c*T / Yhw* `"X public AppException(string message)
8rp-XiW {
= xX^ LogEvent(message);
X0Oq lAw }
)Y&De)= ZJ[ Uz_%W public AppException(string message,Exception innerException)
OEwfNZQ- {
*E)Y?9u" LogEvent(message);
F<(xz= if (innerException != null)
AYZds >#Q {
-6tF LogEvent(innerException.Message);
rw\4KI@ L }
H@j ^, }
8:xQPd?3 o"1us75P //日志记录类
j'J*QK&Q using System;
\+AH>I;vO using System.Configuration;
5PL,~Y using System.Diagnostics;
4COf H7Al9 using System.IO;
YKc{P"'/| using System.Text;
\!V6` @0KC using System.Threading;
}\*Sf[EMD dw4)4_ namespace MyEventLog
+tN-X'u## {
uATBt /// <summary>
(P>vI' /// 事件日志记录类,提供事件日志记录支持
+%Gm2e;_u /// <remarks>
z"O-d<U5 /// 定义了4个日志记录方法 (error, warning, info, trace)
e #OU {2X /// </remarks>
[1UqMkXtf /// </summary>
Nb9pdkf0 public class ApplicationLog
x+TNF>%'D {
3 z#;0n} /// <summary>
u ?Xku8 1l /// 将错误信息记录到Win2000/NT事件日志中
BmJ?VJ}Y /// <param name="message">需要记录的文本信息</param>
r#}Sy\ /// </summary>
4QVd{ public static void WriteError(String message)
M1M]]fT0ME {
H= y-Y_R WriteLog(TraceLevel.Error, message);
Le'\x`B }
vxt^rBA ,RHHNTB(" /// <summary>
-oo=IUk /// 将警告信息记录到Win2000/NT事件日志中
o_N02l4J) /// <param name="message">需要记录的文本信息</param>
(os7Q? /// </summary>
O9y Q9sl public static void WriteWarning(String message)
3U`.:w` {
`3:%F> WriteLog(TraceLevel.Warning, message);
k1H0hDE }
Vi|jkyC8 m #eD v* /// <summary>
~EM];i /// 将提示信息记录到Win2000/NT事件日志中
e4b~s /// <param name="message">需要记录的文本信息</param>
e.GzGX /// </summary>
D?'y)]( public static void WriteInfo(String message)
h5gXYmk {
J?<L8;$s7 WriteLog(TraceLevel.Info, message);
u~kwNN9t3 }
({9!P30: /// <summary>
@6!JW(,]\ /// 将跟踪信息记录到Win2000/NT事件日志中
S_CtEM /// <param name="message">需要记录的文本信息</param>
vSA%A47G /// </summary>
8#Z5-",iw public static void WriteTrace(String message)
/fq6-;co+ {
PS22$_} WriteLog(TraceLevel.Verbose, message);
IXN4?=)I }
M5V1j(URE |<*(`\'w /// <summary>
!%X`c94 /// 格式化记录到事件日志的文本信息格式
D+3Y.r9 /// <param name="ex">需要格式化的异常对象</param>
z Y|g#V- /// <param name="catchInfo">异常信息标题字符串.</param>
"p{'984r< /// <retvalue>
Em;b,x*U /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
]`XuE-Uh /// </retvalue>
4Dia#1$:J /// </summary>
u3:Q t2^S public static String FormatException(Exception ex, String catchInfo)
,')bO*Ng {
*La =7y: StringBuilder strBuilder = new StringBuilder();
M::iU_ if (catchInfo != String.Empty)
&3f.78a {
jQ)>XOok strBuilder.Append(catchInfo).Append("\r\n");
5!zvoX9 }
;"
*`
strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
j#f&!&G5<& return strBuilder.ToString();
>i%w'uU }
t>2^!vl +CT$/k /// <summary>
eNFUjDm /// 实际事件日志写入方法
H=#Jg;_w /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
1znV>PO! /// <param name="messageText">要记录的文本.</param>
2>k)=hl: /// </summary>
^gyp-
! private static void WriteLog(TraceLevel level, String messageText)
af(JoX*U {
e;5Lv9?C8 try
YoJ'=z,e {
!f-o,RJ EventLogEntryType LogEntryType;
m[j3s=Gr switch (level)
Z5L1^ {
uFWgq::\ case TraceLevel.Error:
tJPRR_nZv LogEntryType = EventLogEntryType.Error;
&>l8S lC?
break;
ef;L|b%pp case TraceLevel.Warning:
jPNfLwVkl: LogEntryType = EventLogEntryType.Warning;
N08n/u&cr, break;
P{!:pxu[ case TraceLevel.Info:
fNPj8\#V, LogEntryType = EventLogEntryType.Information;
EiN)TB^] break;
wWU_?Dr_~ case TraceLevel.Verbose:
dt+
4$ LogEntryType = EventLogEntryType.SuccessAudit;
i q:Q$z& break;
v|(b,J3 default:
O + &
xb LogEntryType = EventLogEntryType.SuccessAudit;
!(K{*7|h break;
b6vYM_ Q }
-0da"AB oB
R(7U~0 EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
MK" //写入事件日志
Zw][c7% eventLog.WriteEntry(messageText, LogEntryType);
x,gE$dNzy #L:P
R> }
"q^'5p] catch {} //忽略任何异常
&vX!7Y }
[=6~"!P} } //class ApplicationLog
N%A`rY}u }
y!N)@y4 (mIJI,[xn 12.Panel 横向滚动,纵向自动扩展
lp-Zx[#`}C <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
Cw&D} F}(QKO* 13.回车转换成Tab
n
E}<e: <script language="javascript" for="document" event="onkeydown">
Ygi1"X} if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
FP'lEp event.keyCode=9;
4<<bk_7' </script>
L?27q u?;Vxh3@| onkeydown="if(event.keyCode==13) event.keyCode=9"
!5%5]9'n@* asN
} 14.DataGrid超级连接列
}FiN 7# DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
,i?!3oLT :n9xH 15.DataGrid行随鼠标变色
KzX
,n_`an private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
E(!6n= qR {
<yI,cM<c if (e.Item.ItemType!=ListItemType.Header)
!LIfeL.4h {
8J3@VD. e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
O+p-1 C$\ e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
NJ)2+ }
3U"') }
Dbdzb m7 .k,Jt+ 16.模板列
)ko{S[gG <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
@" 0tW: <ITEMTEMPLATE>
:~3{oZGX& <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
f\);HJbg </ITEMTEMPLATE>
M"5!s, </ASP:TEMPLATECOLUMN>
kq%gY P%@rH@^Y <ASP:TEMPLATECOLUMN headertext="选中">
:{b6M/ <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
RmWfV <ITEMTEMPLATE>
A!W"*WT <ASP:CHECKBOX id="chkExport" runat="server" />
fb"J Bc}X </ITEMTEMPLATE>
6~F#F)C' <EDITITEMTEMPLATE>
c Z6p^ <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
P%+or * </EDITITEMTEMPLATE>
Wda\a.bXT </ASP:TEMPLATECOLUMN>
P"9@8aLB vDW&pF_eI> 后台代码
3Wb2p'V7$? protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
+*_fN ]M {
)'!ml //改变列的选定,实现全选或全不选。
kV\-%:- CheckBox chkExport ;
Ue3B+k9w if( CheckAll.Checked)
}kCn@ {
P,/13tZ#3 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
} }f_ {
m c\ C chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
2#b<d?" chkExport.Checked = true;
6<s(e_5f }
7^I$%o 1g }
S*CLt else
x\`RW3 K {
|rxKCzjm foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
KIKq9 * {
nEd
M_JPv chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
u*26>. chkExport.Checked = false;
]CIQq1iY }
9eGCBVW:* }
?UZ$bz }
:_^0'ULP cK|rrwa0 17.数字格式化
wrQydI ]M~8@K 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
*f `s%&Y]s <%#Container.DataItem("price","{0:¥#,##0.00}")%>
i0'Xy>l U+.PuC[3 int i=123456;
.>kccLr:z string s=i.ToString("###,###.00");
t}]9VD9
m)@Q_{=6M 18.日期格式化
Mr=}B6` K5!";V 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
3s?v(1 {) _b0S 显示为: 2004-8-11 19:44:28
m|[\F#+C nY{i>Y 我只想要:2004-8-11 】
NokXE <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
U~{Sa+ gb=80s0 应该如何改?
M)"]$TM ZI58XS+ 【格式化日期】
DYo<5^0 n5bXQ 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
#)_J)/h _8[UtZYG 【日期的验证表达式】
^e?$ ]JiA! F2bm+0vOJ A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
e86Aqehle ^((\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})))?$
<`c25ih.4 v9E+(4I9_ B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
/B,B4JI)/ ^\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]))$
?CH?kP 0 NQ7#A 【大小写转换】
{A]k%74-a HttpUtility.HtmlEncode(string);
0rk u4T HttpUtility.HtmlDecode(string)
.Lojzx 20rN,@2< 19.如何设定全局变量
n> MD\ZS N@cMM1 Global.asax中
ATMc`z:5T jOBY&W0r Application_Start()事件中
hz<|W5 !~K=#"T 添加Application[属性名] = xxx;
\R8 6;9ov @Pxw hlxa 就是你的全局变量
DH\wDQ s8t f@H4r 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
\|4 Ca't '1CD-
Bu HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
L"[IOV9S oy2(A g\ 【ASPNETMENU】点击菜单项弹出新窗口
T(Y}V[0+ [urH a 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
)UR1E?' <?xml version="1.0" encoding="GB2312"?>
J#6LSD@(O <MenuData ImagesBaseURL="images/">
n&_YYEHx <MenuGroup>
@<vF]\Ce <MenuItem Label="内参信息" URL="Infomation.aspx" >
_/|8%]) <MenuGroup ID="BBC">
i[^k.W3gf <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
1KW3l<v-6 <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
sL)Rg(rkx ......
'Z\{D*=V8 X!T|07#c 最好将你的aspnetmenu升级到1.2版
TkA9tFi \4OK!6LkI 21.读取DataGrid控件TextBox值
B^Xy0fq foreach(DataGrid dgi in yourDataGrid.Items)
G3H#XK D {
k?^%hO>[ TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
azvDvEWCQZ tb.Text....
N\_( w:q }
"3@KRb4f 9n_ eCb)H 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?
XK1fHfCEa Tv`_n2J`2 〖思归〗
LL{t5(- _ <asp:TemplateColumn HeaderText="数量">
+jcdf} <ItemTemplate>
4w@v#H@ <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
N%O[ onkeyup="javascript:DoCal()"
> P(eW7RL />
:OHSxb>[
q4_** <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
gk"mr_03 </ItemTemplate>
D2Y&[zgv </asp:TemplateColumn>
F
b1EMVu `Gf{z%/ <asp:TemplateColumn HeaderText="单价">
!{IC[g n <ItemTemplate>
jUYF.K& <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
YjFWC!Qj$ onkeyup="javascript:DoCal()"
=]T|h />
[d0%.+U DK)u)?! <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
Fl<(m K~USK?Q% </ItemTemplate>
1x{XE*%; </asp:TemplateColumn>
Mz93 _O$tuC% <asp:TemplateColumn HeaderText="金额">
-zprNQW <ItemTemplate>
o5>/}wIf <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
/n(9&'H< </ItemTemplate>
-=}b;Kf- </asp:TemplateColumn><script language="javascript">
rWJ*e Y function DoCal()
\kxh#{$z? {
TNx _Rc} var e = event.srcElement;
~+<<bzY var row = e.parentNode.parentNode;
g+.0c=G( var txts = row.all.tags("INPUT");
T\jAk+$Jo if (!txts.length || txts.length < 3)
mIRAS"Q!m return;
C}9Kx }q .U<F6I:<md var q = txts[txts.length-3].value;
C]/&vh7ta var p = txts[txts.length-2].value;
6zuze0ud k'x#t( if (isNaN(q) || isNaN(p))
D
0 return;
HQl~Dh0DJ 2@fa
rx: q = parseInt(q);
+1x)z~q= p = parseFloat(p);
zFOL(s.h|0 ikr7DBLt txts[txts.length-1].value = (q * p).toFixed(2);
XYts8}y5 }
"i&fp:E0 </script>
|IAW{_9)U )PwQ^||{ +uELTHH= /0
_zXQyV ^eobp.U 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。
|Hfl&3 page_load
=C#*!N73 page.smartNavigation=true
`T=1<Tw c $}db /hY* 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
9T$u+GX' private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
n%*tMr9 s {
BO"qD[S for(int i=0;i<e.Item.Cells.Count-1;i++)
nz[
m3] if(e.Item.ItemType==ListItemType.EditType)
ly[lrD0Kn. {
g#}tm< e.Item.Cells.Attributes.Add("Width", "80px")
:b5XKv^ }
o ~;M" }
@*SA$9/l ?&6Q%IUW1 26.对话框
O~atNrHD private static string ScriptBegin = "<script language=\"JavaScript\">";
~?CS_B * private static string ScriptEnd = "</script>";
*.o"ZVl 3+%nn+m public static void ConfirmMessageBox(string PageTarget,string Content)
z<i,D08|d {
;7L ; string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
3
&Sp@,
k1RV' ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
/eb-'m !O 8.#+ Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
IhfZLE., ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
HJ",Sle //Response.Write(strScript);
=6fB*bNk] }
RbKwO}
z$q bf(+ldq 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
a>w~FUm* I )5<DZB9 1.1 取当前年月日时分秒
V,m3-=q currentTime=System.DateTime.Now;
K_Re}\D ^\T]r<rCY 1.2 取当前年
%W&1`^Jl int 年= DateTime.Now.Year;
"Vx6 #u@} 6`Lcs 1.3 取当前月
>O3IfS(l int 月= DateTime.Now.Month;
V,vc_d?,_o Bh,Q8%\6 1.4 取当前日
vbaC+AiX int 日= DateTime.Now.Day;
@i{]4rk lv I3PQdAs~&h 1.5 取当前时
*x!LKIpv int 时= DateTime.Now.Hour;
?^. Pt G1/Gq.< 1.6 取当前分
.zIgbv s int 分= DateTime.Now.Minute;
m
&!XA i?x$w{co 1.7 取当前秒
- zQ<ZE int 秒= DateTime.Now.Second;
A$:|Qd7F1 b Ob
Nc 1.8 取当前毫秒
!?b/-~o7S int 毫秒= DateTime.Now.Millisecond;
!vVT]k[N WGPD8. 28.自定义分页代码:
J)KnE2dw5 ;Gh>44UM[ 先定义变量 :
{:$NfW public static int pageCount; //总页面数
=W<[Fe3 public static int curPageIndex=1; //当前页面
tH,sql) B$j' /e-Zk 下一页:
h;nQxmJ9 if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
^N{k6>; {
,\x$q' DataGrid1.CurrentPageIndex += 1;
[4: Yi{> curPageIndex+=1;
q~M2:SN@X }
OT@yPG _@K YF) bind(); // DataGrid1数据绑定函数
kIX)oD}c 86qcf"?E 上一页:
3daC;;XO if(DataGrid1.CurrentPageIndex >0)
:X Lp {
tpGCrn2w> DataGrid1.CurrentPageIndex += 1;
%I0}4$ curPageIndex-=1;
&Sa~/!M }
7D9]R#-K 1yS&~
y?a bind(); // DataGrid1数据绑定函数
QAUykS8 o} {-j
直接页面跳转:
t#~XLCE int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
_*n)mlLln 7@3sUA_Go if(a<DataGrid1.PageCount)
\XDmK {
[8z&-'J= this.DataGrid1.CurrentPageIndex=a;
cJ/4Gl }
Yt*vqm[WV 4DM*^=9E bind();
c=aO5(i0 xl,ryc3J 29.DataGrid使用:
Y;eoTJ $
9 =8@ 添加删除确认:
d"GDZ[6 private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
JqSr[q {
GV>&g foreach(DataGridItem di in this.DataGrid1.Items)
D2]ZMDL. {
)qd={ if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
CIy^`2wq {
=f `=@] ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
GW8CaTf~ }
2LZS|fB9o }
MQ9vPgh }
Qi^;1& D )gD< 样式交替:
#g{Mne ListItemType itemType = e.Item.ItemType;
v2=/[E@ ;W6-i2? if (itemType == ListItemType.Item )
Vd<K4Tk {
'kQ~ e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
n.ct]+L e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
CW;m }
sUV>@UMnu else if( itemType == ListItemType.AlternatingItem)
0Z8/R {
)cKj iXn e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
}DHUTP2;yz e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
y@aKNWy}$ }
K:a3+k d +f$Z-U1H/ 添加一个编号列:
^Et,TF\ DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
Man^<T%F DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
2rmNdvvrk C5;wf3 for(int i=0;i<dt.Rows.Count;i++)
bQj`g2eyM {
T]uKH29.% dt.Rows["number"]=(i+1).ToString();
qy&\Xgn;GA }
,2_w=<hq 2qXo{C3 DataGrid1.DataSource=dt;
k}s+ca!B DataGrid1.DataBind();
gs fhH0 `@MPkCy1 DataGrid1中添加一个CheckBox,页面中添加一个全选框
T5q-"W6\ private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
r,"7%1I {
:$2Yg[Zc3 foreach(DataGridItem thisitem in DataGrid1.Items)
#h{Nz/h+ {
r@Nl2 ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
bs P6\'\4 }
ZMJ3NN]F }
ydup)[n J?,?fqb 将当前页面中DataGrid1显示的数据全部删除
2+Zti8 foreach(DataGridItem thisitem in DataGrid1.Items)
UO1$UF!
QC {
k% NrL@z if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
L20rv:W$h {
-$9~xX string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
LyV#j>gD Del (strloginid); //删除函数
*F|+2?a:$ }
RAwk7F3qn }
nzWQQra|? NnP.k7m) 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)
\imp7}N phmVkV2a;# 在Application_Start中添加以下代码:
)vQNiik# Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
aP_3C_ AppSettings["ConnStr"].ToString();
-[Y:?lA >Zo-wYG 31. 变量.ToString()
B>@D,)/bT5 9?(x>P 字符型转换 转为字符串
|eF.ZC)QWh 12345.ToString("n"); //生成 12,345.00
,H@TYw 12345.ToString("C"); //生成 ¥12,345.00
b*`fLrqV. 12345.ToString("e"); //生成 1.234500e+004
CC>($k" 12345.ToString("f4"); //生成 12345.0000
L&QtHSzy 12345.ToString("x"); //生成 3039 (16进制)
Q K j1yG0i 12345.ToString("p"); //生成 1,234,500.00%
$bFgsy*N2 {Hr>X 32、变量.Substring(参数1,参数2);
U&X. ) G|"jFP 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
{zu/tCq? ,O2q+'& 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
@ct#s:t <SCRIPT language="javascript">
2]3G1idB <!--
;M-,HK4= function gook(pws)
F'XlJ M {
tI'e ctn frm.submit();
\QiqcD9Y }
_Qg{ ; //-->
%;
qY'+ 5c)wZ </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
aX]y` <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
|veBq0U <tr>
t"tNtLI <td>
q 7` <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
}-dF+m: <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
B]i+,u <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
"(N-h\7Ex9 D"'#one <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
Rn8#0%/Q <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
^>eFm8`N Nl=+.d6Qo </td>
jWhD5k@v yG4 MUf6 </tr>
F;
0Dp
#|q;t </form>
X!m;uJZp oR7 7` 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
u$\Tg3du2 ~O8]3+U 下面是获取用户输入的登陆信息的代码:
y^3,X_0 string name;
R4yJ.f name=Request.QueryString["EmailName"];
,d5ia4\K
nMeS CX try
I ;l`VtD {
>" i~ x int a=name.IndexOf("@",0,name.Length);
~;` fC|) f_user.Value=name.Substring(0,a);
(Y&R0jt f_domain.Value=name.Substring(a+1,name.Length-(a+1));
=w t-YM f_pass.Value=Request.QueryString["Psw"];
JLt{f=`%F }
L-SdQTx_ ]2g5Ka[>w catch
3EO#EYAHiM {
Q:rT 9&G Script.Alert("错误的邮箱!");
Xp.|.)Od Server.Transfer("index.aspx");
Y*"<@?n8?x }