1. 打开新的窗口并传送参数:
T;`2t; N3$%!\~O 传送参数:
poU1Q#+4p* response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
V''?kVJ DqN<bu2 接收参数:
"
.<>(bE string a = Request.QueryString("id");
s=[T,:Z string b = Request.QueryString("id1");
$LOwuvu> AJ"a 2.为按钮添加对话框
%ZbdWHO# Button1.Attributes.Add("onclick","return confirm(’确认?’)");
}|u>b!7_. button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
vp|'Yy(9z JcJc&cG 3.删除表格选定记录
up==g int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
PL|zm5923 string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
d$qi.%<kh 7,7-E&d 4.删除表格记录警告
Or3GrZ!H private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
"OWW -m {
-|g9__|@ switch(e.Item.ItemType)
)kk10AZV-E {
Bj*\)lG<
case ListItemType.Item :
qac8zt#2
C case ListItemType.AlternatingItem :
H9%[!
RF case ListItemType.EditItem:
cf+EQY TableCell myTableCell;
P1qQ)-J myTableCell = e.Item.Cells[14];
'dvi@Jx LinkButton myDeleteButton ;
J|=0 :G myDeleteButton = (LinkButton)myTableCell.Controls[0];
5`\"UC7?% myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
L"Dos + break;
dKJ-{LV default:
Zgw4[GpL break;
!=bGU= ^
}
;}KT 3Q<^ XmAun }
4l rKU^- VKMgcfbHr/ 5.点击表格行链接另一页
U+-R2w]#q_ private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
7#+>1 "\ {
C'.^2s#e8 //点击表格打开
/CXQ&nwY9= if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
<IO@Qj1* e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
S;iJQS }
0`KR8# A@ )o`[wq 双击表格连接到另一页
~i
UG2 4v rd1EA|T 在itemDataBind事件中
3-v&ktD&N' if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
L}= t"y {
6`WI
S4 string OrderItemID =e.item.cells[1].Text;
Mi)h<lY ...
?*L{xNC# e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
Z>PS>6 }
4QBPN@~t
Xf{ht%b 双击表格打开新一页
\OE,(9T2P. if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
wJF(&P {
e:+[}I) string OrderItemID =e.item.cells[1].Text;
!uW;Ea? ...
I_5[-9 e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
M4)Y%EPc }
`l ?(zy:R Ejt?B')aB5 ★特别注意:【?id=】 处不能为 【?id =】
A_g\Fa[jG 6.表格超连接列传递参数
^H`4BWc <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
4L/nEZ!Nsu <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
$[0\Th e7r3o,! 7.表格点击改变颜色
9c{T|+] if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
5;@2SY7, {
js;k,` e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
F60?%gg this.style.color=’buttontext’;this.style.cursor=’default’;");
C;0VR }
kgP6'`}E[ Y?AvcY. 写在DataGrid的_ItemDataBound里
$CDRIn50 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
nhy:5eSK {
t~%( Zu>S e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
q}gM2Ia'vY this.style.color=’buttontext’;this.style.cursor=’default’;");
L~("C e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
WI1DL&*B@< }
snP]&l+ d+p^fBz I#/"6%e 8.关于日期格式
q{l %k 2$Umqt 日期格式设定
*X
uIA-9 DataFormatString="{0:yyyy-MM-dd}"
3,0b<vfSv MDCwgNPiQW 我觉得应该在itembound事件中
d)kOW!5\ e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
^B$cfs@* M^{=& 9.获取错误信息并到指定页面
89UR w9 {~`{bnx^]7 不要使用Response.Redirect,而应该使用Server.Transfer
>02p,W6S> YBL.R;^v e.g
w1LZ\nA< // in global.asax
gjzU%{T? protected void Application_Error(Object sender, EventArgs e) {
',!>9Dj if (Server.GetLastError() is HttpUnhandledException)
r0s(MyI Server.Transfer("MyErrorPage.aspx");
(Rsf;VPO {wD:!\5 //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
e"|ZTg+U }
1L%$\0B4hm :cKdl[E4z 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
{g 4`>^; <6&Z5mpm$w 10.清空Cookie
q;.LK8M Cookie.Expires=[DateTime];
45H9pY w Response.Cookies("UserName").Expires = 0
JC#5CCz =w7+Yt 11.自定义异常处理
\|C*b< //自定义异常处理类
[IgqK5@ using System;
wW7# M using System.Diagnostics;
e4FR)d0x p\Fxt1Y@X namespace MyAppException
3Xm>
3 {
UAGh2?q2 /// <summary>
;Irn{O /// 从系统异常类ApplicationException继承的应用程序异常处理类。
@M6F?; /// 自动将异常内容记录到Windows NT/2000的应用程序日志
O*yA50Cn /// </summary>
h0")NBRV& public class AppException:System.ApplicationException
pGr4b:N {
,I
H~ public AppException()
vCUbbQz {
7n*"9Ai( if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
AWg'J }
"A0y&^4B@ Bm;:
cmB0e public AppException(string message)
0,B"p {
]"'1-h91 LogEvent(message);
:r7!HG_ }
SPm2I(at7 7bQST0 ? public AppException(string message,Exception innerException)
Ymf@r?F< {
xT-`dS0u LogEvent(message);
OHt^e7\ if (innerException != null)
'n}] {
6?a z LogEvent(innerException.Message);
.yHi"ss3 }
eQ*zi9na }
gHFQs](G. 3R%yKa# //日志记录类
JAy-N bb\ using System;
o.V
JnrJ using System.Configuration;
n. vrq- using System.Diagnostics;
:3{n(~ using System.IO;
F`1J&S;C using System.Text;
4I#@xm8) using System.Threading;
qMw_`dC In8{7&iVO namespace MyEventLog
z
pDc~ebh {
_jH./ @G /// <summary>
iUs_)1 /// 事件日志记录类,提供事件日志记录支持
0"Zxbgu) /// <remarks>
,y@WFRsx /// 定义了4个日志记录方法 (error, warning, info, trace)
X^rFRk /// </remarks>
Mkr
&30il[ /// </summary>
aq\Fh7 public class ApplicationLog
ibLx'< {
|.;]e[& /// <summary>
l| y.6v /// 将错误信息记录到Win2000/NT事件日志中
DVf}='en8 /// <param name="message">需要记录的文本信息</param>
WJ,? 5# /// </summary>
m'M5O@? public static void WriteError(String message)
VQ8Fs/Zt! {
>">Xd@Wk WriteLog(TraceLevel.Error, message);
8#[2]1X^8 }
f4VdH#eng` /PbMt /// <summary>
@$nh6l>i /// 将警告信息记录到Win2000/NT事件日志中
z]D/Qr /// <param name="message">需要记录的文本信息</param>
{$>.I /// </summary>
BAi`{?z$< public static void WriteWarning(String message)
FAX[|p {
}z,9!{~` WriteLog(TraceLevel.Warning, message);
nJ$2RN }
TpI8mDO\W FL4BdJ\ /// <summary>
Z<QNzJ D /// 将提示信息记录到Win2000/NT事件日志中
pH(X;OC9S /// <param name="message">需要记录的文本信息</param>
sp+'c;a /// </summary>
,3!TyQ\m' public static void WriteInfo(String message)
3!%-O:! {
""Oir!4 WriteLog(TraceLevel.Info, message);
,5j3(Lk }
Q
pIec\a+ /// <summary>
f$vU$>+[ /// 将跟踪信息记录到Win2000/NT事件日志中
rjj_]1?K /// <param name="message">需要记录的文本信息</param>
|kD69
}sG /// </summary>
1/i1o nu} public static void WriteTrace(String message)
(xKypc+j {
}^VikT]>1 WriteLog(TraceLevel.Verbose, message);
/%gMzF }
zF|c3ap CHq5KB98+ /// <summary>
,v`03?8l( /// 格式化记录到事件日志的文本信息格式
E~VV19Bv]/ /// <param name="ex">需要格式化的异常对象</param>
mg" _3].j /// <param name="catchInfo">异常信息标题字符串.</param>
.jiJgUa7 /// <retvalue>
] ^?w0A /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
C6Cr+TScH /// </retvalue>
Ikw.L /// </summary>
d[ _@l public static String FormatException(Exception ex, String catchInfo)
#l@P}sHXq {
'z{|#zd9 StringBuilder strBuilder = new StringBuilder();
w#ZzmO if (catchInfo != String.Empty)
r4<As` & {
!b&+2y2i[W strBuilder.Append(catchInfo).Append("\r\n");
,*YmXR-" }
H@9QEj!Y strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
u,{R,hTDS return strBuilder.ToString();
4S4gK }
L=fy!R 1yqsE`4f /// <summary>
TL)7X.1'L /// 实际事件日志写入方法
bZ:xH48MY /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
F1BXu@~e( /// <param name="messageText">要记录的文本.</param>
Ni|MTE]~ /// </summary>
y4$$*oai& private static void WriteLog(TraceLevel level, String messageText)
Xfbr;Jt"< {
B/o8r4[80 try
4O.R=c2}7> {
PgA1:i&' EventLogEntryType LogEntryType;
8aKS=(Z!j switch (level)
GB"Orm. {
!"&-k:|g case TraceLevel.Error:
bC98<if LogEntryType = EventLogEntryType.Error;
agE-, break;
|=KzQY|u case TraceLevel.Warning:
f=VlO d LogEntryType = EventLogEntryType.Warning;
6 EfBz break;
fK *l?Hr case TraceLevel.Info:
s:_a.4&Y LogEntryType = EventLogEntryType.Information;
g$zGiqzMK break;
'.<c[Mp case TraceLevel.Verbose:
cd=|P?Bi LogEntryType = EventLogEntryType.SuccessAudit;
g'{?j~g break;
fD3'Ye<R default:
^,FG9 LogEntryType = EventLogEntryType.SuccessAudit;
z] -m<#1 break;
&328pOT4 }
ww[||
= BkPt 1i EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
TU58 //写入事件日志
gK@`0/k{ eventLog.WriteEntry(messageText, LogEntryType);
Hc[@c)DH ;yyR_NS }
yla-X|> catch {} //忽略任何异常
4_sJ0 =z- }
e6mm;@F> } //class ApplicationLog
/GM!3%'= }
iH@u3[w nnvS.s`O 12.Panel 横向滚动,纵向自动扩展
!]Qk?T~9- <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
IG{Me f6Lc"b3s1 13.回车转换成Tab
G-|c%g!ejf <script language="javascript" for="document" event="onkeydown">
*uf)t,% if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
>;R`Q9s7 event.keyCode=9;
.MRN)p </script>
{ Ie~MW Di27=_J onkeydown="if(event.keyCode==13) event.keyCode=9"
)UpVGT) ryw%0H18 14.DataGrid超级连接列
!#WQ8s!?o DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
JM?__b7g2 TJZ/lJU 15.DataGrid行随鼠标变色
[CfZE private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
\8m9^Z7IfK {
*OdmKVw6G if (e.Item.ItemType!=ListItemType.Header)
J\w4N", {
8F[ ;ma>Z8 e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
4nP4F+ e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
;|Hpg_~%> }
Rm}5AJ }
C.":2F;-e jDTG15_= 16.模板列
2+DK:T[ <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
<|.]$QSi <ITEMTEMPLATE>
EJMd[hMhe <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
K*2s-,b * </ITEMTEMPLATE>
Eb@**% </ASP:TEMPLATECOLUMN>
esE!i0% <[-{:dH,5 <ASP:TEMPLATECOLUMN headertext="选中">
I )vR <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
Z 4i5,f <ITEMTEMPLATE>
Ha/Qz'^S; <ASP:CHECKBOX id="chkExport" runat="server" />
= Ul"{T< </ITEMTEMPLATE>
i2rSP$j <EDITITEMTEMPLATE>
[Gv8Fn/aG <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
!g6=/9 </EDITITEMTEMPLATE>
lY(_e# </ASP:TEMPLATECOLUMN>
>o v#\ R@s|bs? 后台代码
n7G`b' protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
s$qc& {
Ba5*]VGG //改变列的选定,实现全选或全不选。
O(2c_! d CheckBox chkExport ;
]0 = |?n$7 if( CheckAll.Checked)
o<txm ?+N {
LyNmn.nN foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
iGz*4^% {
hmOGteAf- chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
FG{,l=Z0 chkExport.Checked = true;
x V`l6QS }
4 qY }
!G\gqkSL else
zLJmHb{( {
Zi7cp6~7 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
OIpT9 {
\'[tfSB chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
~@PD\ chkExport.Checked = false;
[7HBn }
1 I.P7_/ }
~Ey+ }
FXn98UF Y "4Q_F3?_` 17.数字格式化
UcD<vg"p Ayg^<)JWh 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
SCe$v76p# <%#Container.DataItem("price","{0:¥#,##0.00}")%>
r-xP6 lw}7kp4
2F int i=123456;
@x}^2FE string s=i.ToString("###,###.00");
G~bDl:k`A O CIoY?a 18.日期格式化
yocFdI 4e
eh+T 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
3(|,:"9g $N}t)iA 显示为: 2004-8-11 19:44:28
~/)]`w dI%ho<zm] 我只想要:2004-8-11 】
wd<{%qK`{ <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
g[t paQ R) dP=W* 应该如何改?
r)Lm| S
.I_<\h7 【格式化日期】
i^iu#WC Oso**WUOZ& 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
Qc?W;Q+ p%sizn 【日期的验证表达式】
bEmN
tp^ bHx@ A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
D_JGbNigA ^((\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})))?$
~8mz.ZdY hgW1g# B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
`[#id@Z1 ^\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]))$
]1>R8 TIl 'Z7 【大小写转换】
4@Db $PHs HttpUtility.HtmlEncode(string);
#\}FQl6 HttpUtility.HtmlDecode(string)
Ug546Bz PH:5 19.如何设定全局变量
#X%!7tU6 NyRa.hgZ; Global.asax中
t$Ff$( qwJp&6 Application_Start()事件中
UjoA$A!Od; 3<M yb 添加Application[属性名] = xxx;
(7b9irL&cn Pp8G2|bz 就是你的全局变量
I;E?;i d_pIB@J 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
.*9u_2< ,"gPd!HD( HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
Gds(.]_ & C)1( 【ASPNETMENU】点击菜单项弹出新窗口
,lvG5B\0 %dW;P[0 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
uQx/o^ <?xml version="1.0" encoding="GB2312"?>
T*0;3&sA <MenuData ImagesBaseURL="images/">
Keo<#Cc? <MenuGroup>
hF@%k
;I <MenuItem Label="内参信息" URL="Infomation.aspx" >
Z:N;>.3i <MenuGroup ID="BBC">
aZ_3@I{d` <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
f sh9-iY8e <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
lkJxb~S ......
,K\7y2/ %]0?vw:;j 最好将你的aspnetmenu升级到1.2版
et)n`NlcK #|Lsi`]+ 21.读取DataGrid控件TextBox值
*'A*!=5( foreach(DataGrid dgi in yourDataGrid.Items)
'SlZ-SdR {
=<Sn&uL TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
3~3tjhw;]9 tb.Text....
!a:e=b7g }
@M-w8!.~ }}]Lf 3; 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?
_Y&.Nw yn]Sc<uK 〖思归〗
Lhux~,EH <asp:TemplateColumn HeaderText="数量">
OOXSJE1 <ItemTemplate>
2P8wvNDG <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
w5PscEc onkeyup="javascript:DoCal()"
%(khE-SW />
fw,,cu`YA g&F$hm <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
nM.g8d K </ItemTemplate>
[Z:P{yr </asp:TemplateColumn>
inO;Uwlv u1y>7,Z6W <asp:TemplateColumn HeaderText="单价">
.|go$}Fk <ItemTemplate>
p~8 O6h@J <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
j_}:=3 onkeyup="javascript:DoCal()"
0%L:jq{5 />
@M<qz\
[ =6:9y}~ <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
y6d!?M(0U YzG?K0O% </ItemTemplate>
2[pOGc$ </asp:TemplateColumn>
2>k*9kyp e_|<tYx>< <asp:TemplateColumn HeaderText="金额">
985h]KQ <ItemTemplate>
v .C <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
"PRHQW </ItemTemplate>
8M,o)oH </asp:TemplateColumn><script language="javascript">
Q0jg(=9wP function DoCal()
]nRf%Vi8g {
71AYDO var e = event.srcElement;
M_%KhK var row = e.parentNode.parentNode;
hLZfArq} var txts = row.all.tags("INPUT");
A_U=`M=- if (!txts.length || txts.length < 3)
XtZd%
#2}, return;
{p/Yz# +kYp!00 var q = txts[txts.length-3].value;
]k]bLyz\J var p = txts[txts.length-2].value;
;4b=/1M' ^ /G ; if (isNaN(q) || isNaN(p))
S{&%tj~U return;
%au>D O-UA2?N@j q = parseInt(q);
y_n4Y[4g p = parseFloat(p);
svEe@Kt` ?32~%?m txts[txts.length-1].value = (q * p).toFixed(2);
Myg;2 . }
g7hI9(8+ </script>
m`8{arz2 J>T98y/)) &XcPHZy' z)^.ai,: 0 e4Ibj/ 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。
Pm2LB<qS page_load
l\AdL$$Mb page.smartNavigation=true
r`Fs"n#^-4 z;9D[ME#1 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 ?
3zKeN:w private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
wt9f2 {
iZnLgkk@ for(int i=0;i<e.Item.Cells.Count-1;i++)
Jv3G\9_ if(e.Item.ItemType==ListItemType.EditType)
Gchs$^1`t {
;Krs*3
s e.Item.Cells.Attributes.Add("Width", "80px")
&W<9#RPK' }
"DvZCf[} }
Lks+FW v07A3oj 26.对话框
%2I>-0]B private static string ScriptBegin = "<script language=\"JavaScript\">";
af@a / private static string ScriptEnd = "</script>";
p>?(uGV JK!`uG+v public static void ConfirmMessageBox(string PageTarget,string Content)
J?Y,3cc. {
fP4P'eI string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
`.~S/$a.& w<!,mL5 N ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
\l3z<\ =d"5kDK-m Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
(fl$$$ ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
)mN/e+/Lu //Response.Write(strScript);
7\g#'#K }
jf;n* b#6mUl2 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
;J+iwS*Z T&6>Eb0{ 1.1 取当前年月日时分秒
T'lycc4~a currentTime=System.DateTime.Now;
SOsz=bVx ,!^c`_Q\>@ 1.2 取当前年
I*>q7Hsu int 年= DateTime.Now.Year;
q~aj"GD }L|B@fW 1.3 取当前月
G+2fmVB*X int 月= DateTime.Now.Month;
lAo ~w 7O|`\&RYR 1.4 取当前日
F%lC%~-qh int 日= DateTime.Now.Day;
^vSSG5 : pV8tn! 1.5 取当前时
5K?/-0yG int 时= DateTime.Now.Hour;
IOxtuR 5$:9nPAH 1.6 取当前分
+$>aT(q int 分= DateTime.Now.Minute;
K5`*Y@ g.62XZF@ 1.7 取当前秒
f0^s<:* int 秒= DateTime.Now.Second;
fsEQ4xN' E6xdPjoWy 1.8 取当前毫秒
hfbu+w): int 毫秒= DateTime.Now.Millisecond;
{0,6-dd5 sx7zRw
>X 28.自定义分页代码:
oBub]<.J [x,
`)Fk 先定义变量 :
-:r<sv$ public static int pageCount; //总页面数
0>-}c> public static int curPageIndex=1; //当前页面
t~ I;IB St!0MdCH 下一页:
w1zMY:9 if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
#M!{D {
<{ v
%2 DataGrid1.CurrentPageIndex += 1;
A+H8\ew2, curPageIndex+=1;
7p!f+\kM }
C`qV+pV JURu>-i bind(); // DataGrid1数据绑定函数
l9j=;h s 8K.A~5 w 上一页:
*(vh | if(DataGrid1.CurrentPageIndex >0)
[h
B$%i]\< {
hop|
xtai; DataGrid1.CurrentPageIndex += 1;
XGe;v~L curPageIndex-=1;
-Mrt%1g }
&k_LK 7KUf,0D bind(); // DataGrid1数据绑定函数
v
\;/P
3
.j/D^ 直接页面跳转:
RRQv<x int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
Oop6o$k wmR~e if(a<DataGrid1.PageCount)
^ @=4HtA {
RiQg]3oY this.DataGrid1.CurrentPageIndex=a;
Jo;&~/V
}
N5K2Hv<" K3=0D!D q bind();
BL>~~ F3o"ETle 29.DataGrid使用:
0cfGI% @U?&1.\ 添加删除确认:
%52x:qGa private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
qW4\t {
>Sw?F& foreach(DataGridItem di in this.DataGrid1.Items)
ra^%__N} {
Ax=)J{4v if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
}z9v*C {
&ZFHWI(P ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
6pC1C. }
Vz-q7*o$S }
z"QtP[_m }
PC255 c,)]!{c 样式交替:
2$t%2>1>@ ListItemType itemType = e.Item.ItemType;
Gi@c`lRd1 Jwj=a1I 53 if (itemType == ListItemType.Item )
|Go$z3bx {
aTH$+f1?Q e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
!RwhVaSh e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
y.8nzlkE{ }
y#`;[! else if( itemType == ListItemType.AlternatingItem)
aEa+?6;D {
\=|=(kt) e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
a!u5}[{ e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
Rq?t=7fX) }
/d"@$+ PX23M|$! 添加一个编号列:
/ET+`=n DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
LH_U#P`E DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
?< yYm;B 8vR'<_>Q for(int i=0;i<dt.Rows.Count;i++)
z9
#- {
69:-c@L0 dt.Rows["number"]=(i+1).ToString();
X6w+L?A }
.tHc*Eh 7cB{Iq0+ DataGrid1.DataSource=dt;
EvY^]M_U DataGrid1.DataBind();
`@,Vbn^_ {<}Hut:a DataGrid1中添加一个CheckBox,页面中添加一个全选框
\WdSj private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
x\:KfYr4Y; {
br k*; foreach(DataGridItem thisitem in DataGrid1.Items)
~d\V> {
<rui\/4NJ ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
:w|=o9J }
Ets6tM` }
g6.I~oQj 't*]6^ 将当前页面中DataGrid1显示的数据全部删除
?-9uf\2_ foreach(DataGridItem thisitem in DataGrid1.Items)
;0?OBUDO {
:mLXB75gH if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
ywyg(8>zE {
fiU#\%uJg string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
*D[yA Del (strloginid); //删除函数
%`lJA W[ }
b"trg {e }
*6=9 8C4I )xz_}6b] 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)
eFA,xzp yQ<h>J> 在Application_Start中添加以下代码:
B *6ncj Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
p_JWklg^ AppSettings["ConnStr"].ToString();
gk5Gf
l mZ:#d;0 31. 变量.ToString()
r>*+d|c4 ^Ojg}'.Ygv 字符型转换 转为字符串
`pDTjJ 12345.ToString("n"); //生成 12,345.00
+`V<&
Y-5l 12345.ToString("C"); //生成 ¥12,345.00
'+g[n 12345.ToString("e"); //生成 1.234500e+004
v*As:;D_ 12345.ToString("f4"); //生成 12345.0000
~mK+Q%G5 12345.ToString("x"); //生成 3039 (16进制)
FQ47j)p; 12345.ToString("p"); //生成 1,234,500.00%
K:AP 0Te Nx*1m
BC 32、变量.Substring(参数1,参数2);
q*a~9.i@ }ksp(.}G 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);
MujEjD "| +7_U(|gO 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)
0fUsERr1* <SCRIPT language="javascript">
&U}8@; <!--
W|n$H`;R function gook(pws)
OqF8KJnO; {
nr}Ols frm.submit();
YvP62c \ }
9~a 5R]x2
//-->
P-8QXDdr &u6n5-!v </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
=i;T?*@ <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
OpIeo+^X* <tr>
w2('75$J <td>
UH\{:@GjNO <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
VUHf-bKl <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
E
GZiWBr <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
1:@ScHS $T7 qd
<INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
Nvh&=%{g <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
15' fU! 9!Xp+< </td>
Cp>y<C" mU]^PC2[ </tr>
}ALli0n`V) = iDd{$ </form>
cc}#-HKR[ UM]3MS:[ 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。
TGPZUyi3!= mV4gw'.;7 下面是获取用户输入的登陆信息的代码:
P7/Xh3 string name;
T:|p[Xbo name=Request.QueryString["EmailName"];
E:PPb9Kd OP-{76vE&b try
\6"=`H0} {
eT(X Ri0 int a=name.IndexOf("@",0,name.Length);
#,XZ @u+ f_user.Value=name.Substring(0,a);
a{rUk%x f_domain.Value=name.Substring(a+1,name.Length-(a+1));
J}#2Wy^{ f_pass.Value=Request.QueryString["Psw"];
W5:fY>7 }
,7k1n{C) }? c%L8\ catch
=]pEvj9o {
Z ZCm438 Script.Alert("错误的邮箱!");
R1<$VR Server.Transfer("index.aspx");
e#3RT8u# }