1. 打开新的窗口并传送参数:
>EVlMt27' (AHZmi
V 传送参数:
~hubh!d= response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
OQ[E-%v1 R t7A ' 接收参数:
3~zK :( string a = Request.QueryString("id");
~]+-<O^U~ string b = Request.QueryString("id1");
}LXS!Ff: 3=6`'PKRQ 2.为按钮添加对话框
I)
mP? Button1.Attributes.Add("onclick","return confirm(’确认?’)");
?^F*M#%?
button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
Kk5 vC{ H+^93 3.删除表格选定记录
4'&j<Ah[# int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
]zGgx07d string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
X bF; $~h\8 4.删除表格记录警告
x"hZOgFZ private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
L@ ,-V {
fZoV\a6Kj switch(e.Item.ItemType)
Dj=OUo[[d {
2h<{~; case ListItemType.Item :
.rfufx9Sw case ListItemType.AlternatingItem :
WM& k case ListItemType.EditItem:
HK@LA3 TableCell myTableCell;
-7GF2
@ myTableCell = e.Item.Cells[14];
6kW <i,A
- LinkButton myDeleteButton ;
1-_op!N myDeleteButton = (LinkButton)myTableCell.Controls[0];
5gZEcJ myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
P3w]PG@ break;
2C9wOO default:
:} r^sD break;
q#fj?`k }
]dZ8]I<$C $"P9I-\m }
x/nlIoT f1cQ*#2~ 5.点击表格行链接另一页
%s.hqr,I private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
Ql1HaC/5)- {
/:]`TlAb, //点击表格打开
'r KDw06/ if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
g.AMCM?z e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
)@-v6;7b0 }
_%g}d/v}pO UQGOCP_ 双击表格连接到另一页
"][MCVYP UjmBLXz@T 在itemDataBind事件中
]X:{y&g( if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
4::>Ca^{ {
@Y/PvS8! string OrderItemID =e.item.cells[1].Text;
]LF Y2w< ...
Z]$RO e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
[emUyF }
j, SOL9yg (kpn"]^' 双击表格打开新一页
zYf`o0U if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
g~ tG {
Yjv[rH5v string OrderItemID =e.item.cells[1].Text;
#UR4I2t* ...
C-@ e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
&3x
\wH/_ }
8 *@knkJ (*63G4Nz\ ★特别注意:【?id=】 处不能为 【?id =】
7%p[n;-o& 6.表格超连接列传递参数
19)fN-0Z <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
tw.2h'D <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
hZ0p /Bdv __U;fH{c 7.表格点击改变颜色
L8<Yk`jx if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
#q{i<E 07 {
AXBv']Y e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
Pb0+z=L this.style.color=’buttontext’;this.style.cursor=’default’;");
iz'#K?PF_ }
"yR56`= Wsb=SM7; 写在DataGrid的_ItemDataBound里
]=A=VH& if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
)^+v*=Dc-i {
;6N@raP7 e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
\~H;Wt5 this.style.color=’buttontext’;this.style.cursor=’default’;");
3VJoH4E!6 e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
i2or/(u` }
]?P9M<0PM h.Cr;w,2R L@*0wx`fU 8.关于日期格式
'</ Jhbkp?Zli 日期格式设定
OtuOT=% DataFormatString="{0:yyyy-MM-dd}"
H-%)r&"vn MF>1u% 我觉得应该在itembound事件中
27b7~! e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
S5:`fo^5 {e,m<mAi 9.获取错误信息并到指定页面
hw`+,_ g 6x\+j 不要使用Response.Redirect,而应该使用Server.Transfer
jd;=5(2 F^kH"u[ e.g
1gp3A // in global.asax
C3fSSa%b protected void Application_Error(Object sender, EventArgs e) {
${n=1-SMU if (Server.GetLastError() is HttpUnhandledException)
xZ2}1D Server.Transfer("MyErrorPage.aspx");
[3`T/Wm {Y{*(5YV //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
k[oU}~*U+ }
A(y^1Nm l 6wX18~XJ Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
\LB =_W$ nVI\Or[ 10.清空Cookie
XZhX%OT! Cookie.Expires=[DateTime];
<\k=j{@ Response.Cookies("UserName").Expires = 0
\M>+6m@w ]}Hcb)'j@ 11.自定义异常处理
6T 2jVNg //自定义异常处理类
Fy-+? ~ using System;
Y7R"~IA$ using System.Diagnostics;
|xaJv:96%
Mf0g)X}1 namespace MyAppException
T:Dp+m!\{ {
]saf<?fzr /// <summary>
mLM$dk3 /// 从系统异常类ApplicationException继承的应用程序异常处理类。
7*5$=z4,1 /// 自动将异常内容记录到Windows NT/2000的应用程序日志
gx&BzODPd0 /// </summary>
hx$-d}W{ public class AppException:System.ApplicationException
Qg+0(odd {
4ew|5Zex.~ public AppException()
VXvr`U\ {
;i`X&[y; if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
!pI)i*V| }
:<d\//5<9 =LJc8@<:f public AppException(string message)
{HeIY2 {
v%3mhk# LogEvent(message);
WSfla~-'F }
^=Rqa
\; .)^@[yrkz public AppException(string message,Exception innerException)
&)L2a) {
FKflN LogEvent(message);
yn<z!z%mz if (innerException != null)
H<|I&nV {
eW)(u$C|qL LogEvent(innerException.Message);
KU[eY} }
6~\z]LZ }
uf,4GPo, lpkg(J#& //日志记录类
T{u!4Yu using System;
dwks"5l using System.Configuration;
LH..8nfl using System.Diagnostics;
e47JLW&b using System.IO;
le`&VdE^ using System.Text;
((rk)Q+;v using System.Threading;
/=4P<&J +v%V1lf^~ namespace MyEventLog
l|-1H76 {
?}%Gr,tj2 /// <summary>
DG1
>T /// 事件日志记录类,提供事件日志记录支持
Xg.'<.!g0 /// <remarks>
/E(H`;DG /// 定义了4个日志记录方法 (error, warning, info, trace)
2XrPgq' /// </remarks>
"Iu[)O% /// </summary>
$DC*&hqpt public class ApplicationLog
B M{GSX {
")7,ZN; /// <summary>
L f[>U /// 将错误信息记录到Win2000/NT事件日志中
sChMIbq!Av /// <param name="message">需要记录的文本信息</param>
94r8DkI /// </summary>
.EVy?-
public static void WriteError(String message)
f&t]O$ {
,-A8;DW]^J WriteLog(TraceLevel.Error, message);
phSF.WC }
!mK[kXo {s|rk /// <summary>
35Nwx< /// 将警告信息记录到Win2000/NT事件日志中
(+>~6SE /// <param name="message">需要记录的文本信息</param>
OxX{[|!` /// </summary>
rKq/=Avv public static void WriteWarning(String message)
?_ [xpK() {
zLXmjrC WriteLog(TraceLevel.Warning, message);
%JDG aG' }
CFqoD l -yeQQ4b /// <summary>
0m,A`*o /// 将提示信息记录到Win2000/NT事件日志中
X"b4U\A /// <param name="message">需要记录的文本信息</param>
*Id$%O /// </summary>
wo7.y["$ public static void WriteInfo(String message)
~6@zXHAS {
jD3,z* WriteLog(TraceLevel.Info, message);
'n I2RX }
!*u5HVn /// <summary>
@lAOi1m,, /// 将跟踪信息记录到Win2000/NT事件日志中
b].:2 /// <param name="message">需要记录的文本信息</param>
H[V^wyi'z /// </summary>
hNc;,13 public static void WriteTrace(String message)
i0,{*LD%^ {
noe1*2*T E WriteLog(TraceLevel.Verbose, message);
0"o<(1 }
H~1la V >b,o yM /// <summary>
dN;kYWRK /// 格式化记录到事件日志的文本信息格式
NUb^!E" /// <param name="ex">需要格式化的异常对象</param>
tx&>Eo /// <param name="catchInfo">异常信息标题字符串.</param>
B{a:cz>0< /// <retvalue>
{f#{NA5 /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
aGNVqS%y /// </retvalue>
( gO ?-0 /// </summary>
tC\x9&: public static String FormatException(Exception ex, String catchInfo)
zB\g'F/ {
8-cG[/|0 StringBuilder strBuilder = new StringBuilder();
sl|s#+Z if (catchInfo != String.Empty)
_3tHzDSG# {
m3
; strBuilder.Append(catchInfo).Append("\r\n");
wq_c^Ioy }
&T]+g8 '' strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
b>E%&sf return strBuilder.ToString();
VP\HPSp }
rB?u.jn0T E!Hq%L!/ /// <summary>
xq=+M!V /// 实际事件日志写入方法
F/ 2@%,2n /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
hSaS2RLF /// <param name="messageText">要记录的文本.</param>
9:A>a3KOH /// </summary>
'*!R
gbj; private static void WriteLog(TraceLevel level, String messageText)
*jGB/ y {
[6 wI22 try
[V{JuG;s {
KoiU\r EventLogEntryType LogEntryType;
yk#yrxM switch (level)
qyUcjc%[ {
p*!@z|F>U case TraceLevel.Error:
YS?P A# LogEntryType = EventLogEntryType.Error;
NmST1pMk break;
= Ii@-C case TraceLevel.Warning:
i2.y)K) LogEntryType = EventLogEntryType.Warning;
2iI"|k9M break;
ogMLv} case TraceLevel.Info:
*]z.BZI: LogEntryType = EventLogEntryType.Information;
V|}9d:&O break;
+^gh3Y case TraceLevel.Verbose:
t2p/NIn LogEntryType = EventLogEntryType.SuccessAudit;
]~8bh*,= break;
>?'q P ] default:
zJI/j
_~W LogEntryType = EventLogEntryType.SuccessAudit;
tzi+A;>c(v break;
WRh&4[G' }
&[*_ - X~0l1 @! EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
kR^7Z7+#* //写入事件日志
Y@KZ:0< eventLog.WriteEntry(messageText, LogEntryType);
nX5*pTfjL3 &Xe r#6~ }
tA#X@HIE catch {} //忽略任何异常
p$f#W }
'nP'MA9b;a } //class ApplicationLog
^K@r!)We }
6\ux;lksn* vc6UA%/f 12.Panel 横向滚动,纵向自动扩展
tt[P{mMQ <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
98Srn63O h |=^@F_\` 13.回车转换成Tab
1?(BWX)7 <script language="javascript" for="document" event="onkeydown">
Qu!\Cx@ if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
<tf4j3lwH event.keyCode=9;
{9;~xxTo </script>
v7Knu] <ofXNv;` onkeydown="if(event.keyCode==13) event.keyCode=9"
X$/3 \q3H#1A 14.DataGrid超级连接列
tyP-J4J DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
f*XF"@ZQV z$7YC49^ 15.DataGrid行随鼠标变色
+Jt"JJ>% k private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
P(X#w {
PC\Xm,, if (e.Item.ItemType!=ListItemType.Header)
IS&`O=7 {
C>v e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
W{ eu_ e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
{Hp?rY@ }
kjNA~{ }
Zt lS*id_ ]|u}P2 16.模板列
"oz@w'rG <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
7;CeQx/W)W <ITEMTEMPLATE>
[2i+f< <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
`Z|sp </ITEMTEMPLATE>
U%oI* </ASP:TEMPLATECOLUMN>
N#7 ]xL 3
%DA { <ASP:TEMPLATECOLUMN headertext="选中">
[ R~+p#l+Q <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
h4?+/jk7 <ITEMTEMPLATE>
f@LUp^Z/v <ASP:CHECKBOX id="chkExport" runat="server" />
wB9IP{Pf </ITEMTEMPLATE>
L%B+V;<h3 <EDITITEMTEMPLATE>
=v:_N.Fh-c <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
07(E/A] </EDITITEMTEMPLATE>
++&F5'?g </ASP:TEMPLATECOLUMN>
$)n{}8^ Maa5a 后台代码
~;+i[Z&e protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
.Z_U]_( {
GbP!l;a //改变列的选定,实现全选或全不选。
/2FX"I[0V% CheckBox chkExport ;
am%qlN< if( CheckAll.Checked)
44%H? ,d {
"VT5WFj foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
P* aD2("Z {
EAY9~b6~c chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
lg8~`96 chkExport.Checked = true;
T^sxR4F }
,1~Zqprn }
//J:p,AF else
]G1j\ wnF {
t<`ar@} foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
HhqqJEp0 {
<U~P-c
tN chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
Q@$1!9m chkExport.Checked = false;
hJ}G5pX }
,7j`5iq[m }
mceSUKI;L }
hA@X;Mh^w @W.`'b- 17.数字格式化
:+R5"my 5Q%#Z
L/' 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
Y\op9Fw <%#Container.DataItem("price","{0:¥#,##0.00}")%>
E_H1X'|qS4 qL'3MY.! int i=123456;
W2<X 5' string s=i.ToString("###,###.00");
y:,{U*49 R(zsn; 18.日期格式化
wz,
\zh 61mQJHl. 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
}K*ri PH7L#H^ 显示为: 2004-8-11 19:44:28
gIRCJ=e[b Q1jyetk~I 我只想要:2004-8-11 】
s]I],>}RU <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
RU{}qPs? 1B1d>V$* 应该如何改?
RF;N]A?* yjSN;3t71 【格式化日期】
`2@-'/$\I| xS(sR x+A 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
|hdh4P$+| :w];N|48s 【日期的验证表达式】
kqyMrZ# t
=*K?'ly A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
H!Od.$ZIX ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
w(G(Q>GI ALwuw^+ B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
9V"j=1B} ^\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]))$
K&X'^|en )T4L^^` 【大小写转换】
`773& \PK HttpUtility.HtmlEncode(string);
lyi}q"Kn*; HttpUtility.HtmlDecode(string)
!e7vc[N )a}5\V 19.如何设定全局变量
)R|7> 97 a>kDG <.A Global.asax中
[%@zH cr/|dc' Application_Start()事件中
D3K`b4YV 6
%=BYDF 添加Application[属性名] = xxx;
JxvwquI =3T?U_u@ 就是你的全局变量
}+lxja]C Q0--.Q=:Y 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
~FsUK;? k N^)6 HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
B.WJ6.DkS y H'\<bT 【ASPNETMENU】点击菜单项弹出新窗口
]SPB c =&p bh 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
G8&'*7Bb <?xml version="1.0" encoding="GB2312"?>
Yn#8uaU <MenuData ImagesBaseURL="images/">
PWmz7*/ <MenuGroup>
68!]q(!6F <MenuItem Label="内参信息" URL="Infomation.aspx" >
SH(kUL5 <MenuGroup ID="BBC">
|u+&xX7 <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
D#$gdjZ <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
- VE#:& ......
MCCZh{uo ku{aOV% 最好将你的aspnetmenu升级到1.2版
<- ?B# 9s!/y iP5 21.读取DataGrid控件TextBox值
4sAshrUf foreach(DataGrid dgi in yourDataGrid.Items)
q)~qd$yMS {
6+FON$8 TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
b1#=q0Zl tb.Text....
t#q>U%! }
Ocb2XEF f@{C3E dd 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
IF:M_
6Te}"t> 〖思归〗
m7"f6zSo( <asp:TemplateColumn HeaderText="数量">
c`+ITNV <ItemTemplate>
"tR.'F[n4P <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
q>[% C5 onkeyup="javascript:DoCal()"
:9#`|#uh />
Zb
2 wI4;/w> <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
]/bE${W*] </ItemTemplate>
i#lo?\PO> </asp:TemplateColumn>
ypd?mw&1} 4yA`);r62 <asp:TemplateColumn HeaderText="单价">
6+5Catsn <ItemTemplate>
V!P3CNK <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
Q#N+5<]J)# onkeyup="javascript:DoCal()"
</X"*G't />
$imx-H`| c{Kl?0#[ <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
(*ng$zZ$ V\ "5<>+O </ItemTemplate>
[!le 9aNg </asp:TemplateColumn>
jE#8&P~ CwvNxH#LVu <asp:TemplateColumn HeaderText="金额">
]cr;PRyv <ItemTemplate>
=#tQIhX` <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
DS C4 </ItemTemplate>
]Yg EnZ </asp:TemplateColumn><script language="javascript">
5avO48;Vc function DoCal()
u\xm8}A {
`$H var e = event.srcElement;
{H V,2-z var row = e.parentNode.parentNode;
RuZ;hnE& var txts = row.all.tags("INPUT");
='0!B]<G if (!txts.length || txts.length < 3)
vR$5ItnT return;
&w0=/G/T=~ ak>NKK8P var q = txts[txts.length-3].value;
1 =<|h var p = txts[txts.length-2].value;
{ 9 ".o, F29AjW86 if (isNaN(q) || isNaN(p))
1%"`
=$q% return;
_zh5KP[{ ku?_/-ko] q = parseInt(q);
]e.+u p = parseFloat(p);
md"%S-a_dT 5@$4.BGcF txts[txts.length-1].value = (q * p).toFixed(2);
kDq%Y[6Z }
3(+#^aw </script>
c0&'rxi(B v|@n8ED|@K C8:"+; YZRB4T9 wF8\ 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
kW&Z%k page_load
qD*\}b]9I
page.smartNavigation=true
sK0VT"7K F5+_p@!i 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
"PaGDhS private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
fR4l4 GU?) {
M7R&J'SAY for(int i=0;i<e.Item.Cells.Count-1;i++)
TEyx((SK if(e.Item.ItemType==ListItemType.EditType)
}G+A_HF ^ {
5Kj4!Ai e.Item.Cells.Attributes.Add("Width", "80px")
,,@`l\Pgd }
k{jw%a<Sc }
cl{W]4*$ bU ]N^og^ 26.对话框
==1/N{{R private static string ScriptBegin = "<script language=\"JavaScript\">";
K9Xd?
]a private static string ScriptEnd = "</script>";
DA)v3Nd =zeLs0s; public static void ConfirmMessageBox(string PageTarget,string Content)
WV1 Z {
|HGb.^f? string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
Us,[x Q ""3m!qn# ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
^YJA\d@ WWW#s gM% Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
{ $/Fk6qr ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
>JPJ%~y //Response.Write(strScript);
}.UI&UZ- }
O6,"#BX i i@1!o 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
arS'th:j BddECY,z 1.1 取当前年月日时分秒
NcBe|qxQ currentTime=System.DateTime.Now;
:$i:8lz
MW$H/:3 1.2 取当前年
@:+n6 int 年= DateTime.Now.Year;
Q\#{2!I 6'Yn|A 1.3 取当前月
b+].Uc int 月= DateTime.Now.Month;
C6UMc}
9h >Y-TwDaE 1.4 取当前日
V/}>>4 int 日= DateTime.Now.Day;
qzt2j\v I"32[?0
(; 1.5 取当前时
$Cd ;0gdv int 时= DateTime.Now.Hour;
/~l/_Jct@G }&T<wm! 1.6 取当前分
Of7) A int 分= DateTime.Now.Minute;
I49l2> %}MA5 t]o 1.7 取当前秒
;%7XU~<a int 秒= DateTime.Now.Second;
QHs:=i~VH !N8)C@= 1.8 取当前毫秒
{IPn\Bka int 毫秒= DateTime.Now.Millisecond;
O%K?l}e @=NVOJy}c 28.自定义分页代码:
@y0bU*v7 E[3FdX8 先定义变量 :
Mj
B<\g> public static int pageCount; //总页面数
)n}]]^Sc public static int curPageIndex=1; //当前页面
4ZJT[zi X!rQ@F3 下一页:
8jjk?PUD8 if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
'!^E92 {
N _~KZQ11^ DataGrid1.CurrentPageIndex += 1;
sb|3|J6= curPageIndex+=1;
Q;XHHk }
$;2eH L);||]B bind(); // DataGrid1数据绑定函数
VyoE5o >[XOMKgQ]( 上一页:
co^P7+j if(DataGrid1.CurrentPageIndex >0)
$]%<r?MUb- {
4/2RfDp DataGrid1.CurrentPageIndex += 1;
5&HT$"H: curPageIndex-=1;
&AQ;ze }
9IvcKzS2 RZd4(7H=q bind(); // DataGrid1数据绑定函数
c[h'`KXJf- g/l0}% 直接页面跳转:
&=z1$ih>2\ int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
o7Cnyy#: hr<7l
C if(a<DataGrid1.PageCount)
)-.Cne;n {
k?["F%)I this.DataGrid1.CurrentPageIndex=a;
loeLj4"" }
_)#=>$k\ ^3WIl] bind();
WAwfL? 9*=@/1 29.DataGrid使用:
HTDyuqs 7"n)/;la 添加删除确认:
b#p~F}qT private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
S:p.W=TAB {
q: Bt]2x foreach(DataGridItem di in this.DataGrid1.Items)
//X e*0 {
E+m]aYu" if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
4>$
;gH {
^p"4)6p-W ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
KkdG.c' }
uP%axys }
^<>Jw%H }
iM?I
/\ 2H?I'<NoC 样式交替:
Bbl)3$`, ListItemType itemType = e.Item.ItemType;
O^X[9vrW m~Y'$3w if (itemType == ListItemType.Item )
' 1P=^ {
l&6U|q` e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
`R=a@DQ e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
{DEzuU }
ZL-uwI!`D else if( itemType == ListItemType.AlternatingItem)
vh|Tb5W< {
5W[3_P+ e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
IqhICC1V- e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
(#j2P0B }
Gut J_2f^9 {?EEIfg 添加一个编号列:
VY+(,\)U DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
\3H<z@; DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
(30<oE{ ^MW\t4pZ for(int i=0;i<dt.Rows.Count;i++)
,bZ"8Z"lss {
+CnyK(V dt.Rows["number"]=(i+1).ToString();
|D;_:x9 }
U^M@um M wJ80};! DataGrid1.DataSource=dt;
v Q-ixh DataGrid1.DataBind();
93Mdp9v+i ^%n124 DataGrid1中添加一个CheckBox,页面中添加一个全选框
n_""M:X H private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
!lQ#sL` {
-1jjB1 foreach(DataGridItem thisitem in DataGrid1.Items)
c
}<*~w; {
!X5o7b ) ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
Lnh':7FQJx }
n0rerI[R }
S2J#b"Y CrnB{Z4L 将当前页面中DataGrid1显示的数据全部删除
"n{9- VEmN foreach(DataGridItem thisitem in DataGrid1.Items)
94T}iY. {
,U6*kvHS6 if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
+(;8@"u {
jd ["eI string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
o"'iXUJ Del (strloginid); //删除函数
%B#hb<7} }
Z|2Eb* }
&mh Ln4^ d^KBIz8$5l 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
^G}# jg. >Hdjsu5{N 在Application_Start中添加以下代码:
vP3K7En Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
=ud`6{R AppSettings["ConnStr"].ToString();
M*d-z wXc,F D$ 31. 变量.ToString()
~?FK ; ( )-0[ra] 字符型转换 转为字符串
eQ$N:] 12345.ToString("n"); //生成 12,345.00
' 2>l 12345.ToString("C"); //生成 ¥12,345.00
mWNR( ()v 12345.ToString("e"); //生成 1.234500e+004
S3R|8?| 12345.ToString("f4"); //生成 12345.0000
0Vf)Rw1%I
12345.ToString("x"); //生成 3039 (16进制)
B }6Kd 12345.ToString("p"); //生成 1,234,500.00%
~_ *H)| 9aT L22U? 32、变量.Substring(参数1,参数2);
%lXbCE:[ 7<^'DOs 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
n`P`yb\f$ T1l&B 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)
W;^N8ap% <SCRIPT language="javascript">
%)pP[[h <!--
Hab!qWK` function gook(pws)
OZG0AX+=# {
66oK3%[ frm.submit();
zLh Fbyn( }
?K0U3V$s //-->
pp(H
PKs=} Oz:D.V
3~ </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
<\h*Zy <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
1+R:3(AC <tr>
GA.BI"l <td>
SV&kWbS <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
!d\t:0; <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
,,S9$@R <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
\0D$Mie ;U
|NmC + <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
YZ0en1ly <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
*yrnK3 y
$:yz; </td>
zEy&4Kl{+ _Aa[?2 O </tr>
mn.`qfMh HCJ;&C73& </form>
p:B
]Ft FS8S68 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。
6{Ks`Af +Z > < 下面是获取用户输入的登陆信息的代码:
Gi*<~`Gr string name;
|H:<:*=6c name=Request.QueryString["EmailName"];
s,w YlVYf! 9GThyY try
0Su_#".-* {
9X3yp:>V int a=name.IndexOf("@",0,name.Length);
\4aKLr f_user.Value=name.Substring(0,a);
Y:wF5pp; f_domain.Value=name.Substring(a+1,name.Length-(a+1));
!#. \QU| f_pass.Value=Request.QueryString["Psw"];
sv'
Gt1&"Z }
i!L;? `F{ uMHRUi catch
:.DI_XN` {
d4J<, Script.Alert("错误的邮箱!");
tR<L`?4 Server.Transfer("index.aspx");
|-n
('gQ[ }