1. 打开新的窗口并传送参数:
/9/svPc] ISo{>@a- 传送参数:
.eQIU$Kw!O response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
V&)lS Qw 0fc]RkHs" 接收参数:
A)I4 `3E string a = Request.QueryString("id");
&mebpEHUG7 string b = Request.QueryString("id1");
.;6G?8` Op] L#<&T 2.为按钮添加对话框
wm@/>X Button1.Attributes.Add("onclick","return confirm(’确认?’)");
{ bjK(| button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
=\v./Q- 6*@\Qsp615 3.删除表格选定记录
"52nT int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
ZSL:q%:. string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
Wj N0KA rx^vh%/
Q! 4.删除表格记录警告
SZ+<0Y| private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
W?W vT`
T{ {
BaSNr6
YW switch(e.Item.ItemType)
**I9Nw!IH {
b"Ep?=*5 case ListItemType.Item :
.\*3t/R=X case ListItemType.AlternatingItem :
z!09vDB^ case ListItemType.EditItem:
'8g/^Y@ TableCell myTableCell;
:UuPy|> myTableCell = e.Item.Cells[14];
B Z:H$v LinkButton myDeleteButton ;
rVLUT myDeleteButton = (LinkButton)myTableCell.Controls[0];
.f'iod- myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
5gpqN)|)[ break;
/$OX'L&b default:
;9cBlthh break;
u*R9x3&/5 }
t(SSrM] ;d17xu?ks }
t
>89(
k 1c=Roiq 5.点击表格行链接另一页
7h?yAgDv~ private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
p{:r4!*L {
\-c8/= //点击表格打开
\R&4Nu2F if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
8.ek_r e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
"P:kZ=M
Q }
s^_E'j$ YM9oVF- 双击表格连接到另一页
A[juzOn\ {b@rQCre7 在itemDataBind事件中
amI$0 if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
yVPkJ {
$q}}w||e~0 string OrderItemID =e.item.cells[1].Text;
^
K8JE, ...
_`!@ e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
Fj c+{;x }
\6B,\l]$t@ @Kri)U
i 双击表格打开新一页
\mZ\1wzn'{ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
uNLB3Rdy} {
w;$@ </ string OrderItemID =e.item.cells[1].Text;
S3"js4a ...
U4#[>* e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
}z&P^p)R }
4+mawyM H3 _7a 9 ★特别注意:【?id=】 处不能为 【?id =】
FAu G`zu 6.表格超连接列传递参数
an3HKfv <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
T6f{'.w <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
6Rn_@_Nn)f $;*YdZ`q 7.表格点击改变颜色
l79jd%/m if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
q>&F%;q1] {
?r@euZ& e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
ypXKw7f( this.style.color=’buttontext’;this.style.cursor=’default’;");
)>,b>7 }
4ei
.- Y_`D5c: 写在DataGrid的_ItemDataBound里
>Uvtsj# if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
{+[~;ISL {
Yt*M|0bL e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
RIX0AE this.style.color=’buttontext’;this.style.cursor=’default’;");
iUh_rX9A" e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
Ms?V1 }
xM%E; (5d~0 lwLK#_5u 8.关于日期格式
R~b9) B$7m@|p! 日期格式设定
bxP> DataFormatString="{0:yyyy-MM-dd}"
@1P1n8mH] s<qSelj 我觉得应该在itembound事件中
:o$ R@l e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
@u/<^j3Q 1G|Q~%cv 9.获取错误信息并到指定页面
XzQ=8r>l @.kv",[{[ 不要使用Response.Redirect,而应该使用Server.Transfer
Xj$J}A@ |aN0|O2 e.g
fDq,
)~D // in global.asax
G;Y,C<)0k protected void Application_Error(Object sender, EventArgs e) {
SPsq][5eR if (Server.GetLastError() is HttpUnhandledException)
l3}n.ODA Server.Transfer("MyErrorPage.aspx");
\{da|n- }eb%"ZH4| //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
n:he`7.6O }
tH:ea$A 0[D5]mcv 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
)T#;1qNB ,?B.+4CW\E 10.清空Cookie
^iubqtT] Cookie.Expires=[DateTime];
%R;cXs4r Response.Cookies("UserName").Expires = 0
cFUYT$8> d^
!3bv*h 11.自定义异常处理
#`GW7(M //自定义异常处理类
G"MpA[a_ using System;
zx(j6 using System.Diagnostics;
Kggf!\MR8 1:7>Em<s namespace MyAppException
D4'?
V
Iz {
Bx&`$lW /// <summary>
0P/A /// 从系统异常类ApplicationException继承的应用程序异常处理类。
O(
he /// 自动将异常内容记录到Windows NT/2000的应用程序日志
~B(]0: /// </summary>
d5A!kU _. public class AppException:System.ApplicationException
Z;S*fS-_ {
q~trn'X> public AppException()
|!%A1 wp# {
*U54x
/w| if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
QVn0!R{ }
{r&M -xXNzC public AppException(string message)
8tA.d.8 {
wt2S[:!p LogEvent(message);
3N+P~v)T' }
/F;*[JZIb *{4cc public AppException(string message,Exception innerException)
*BXtE8
BU {
}C*o;'o5G LogEvent(message);
K-
}k-S if (innerException != null)
P+}qaup {
Y1k/ngH LogEvent(innerException.Message);
JF{,;&sj }
+8^9:w0} }
IU$bP#< F5
LQgK-z //日志记录类
iqy}|xAU using System;
Y ga}8DU using System.Configuration;
tEN]0` using System.Diagnostics;
nNhN:? using System.IO;
Z$zUy|s[ using System.Text;
b V9Z[[\ using System.Threading;
Ysr{1! K ys#M*
{? namespace MyEventLog
eaX`S.!jR {
X3W)c&Pr /// <summary>
@1]<LQ\\ /// 事件日志记录类,提供事件日志记录支持
+ypG<VBx% /// <remarks>
:m&`bq /// 定义了4个日志记录方法 (error, warning, info, trace)
~7 `x9MUc /// </remarks>
{6%uNT>| /// </summary>
J $e.$ah; public class ApplicationLog
K,IOD
t {
,o9)ohw /// <summary>
!5B9:p~-
/// 将错误信息记录到Win2000/NT事件日志中
~5!ukGK_ /// <param name="message">需要记录的文本信息</param>
pK'WJ
72U /// </summary>
Y~vTFOI public static void WriteError(String message)
w:Lu {
_23sIUN c3 WriteLog(TraceLevel.Error, message);
"~V}MPt }
B4|`Z'U#; Q|ik\ /// <summary>
UkqLLzL /// 将警告信息记录到Win2000/NT事件日志中
rM?D7a{q /// <param name="message">需要记录的文本信息</param>
mCz6& /// </summary>
+XpRkX&- public static void WriteWarning(String message)
7_K(xmK {
tjd"05"@: WriteLog(TraceLevel.Warning, message);
pM46I" }
!r
LHPg N\uQ-XOi /// <summary>
Ec\x;li! * /// 将提示信息记录到Win2000/NT事件日志中
rqF PUp /// <param name="message">需要记录的文本信息</param>
J:(Shd'4D
/// </summary>
8^R>y public static void WriteInfo(String message)
Nl_;l {
6VE >$`m WriteLog(TraceLevel.Info, message);
##s!-.T }
6sZRR{' /// <summary>
~qqtFjlG^ /// 将跟踪信息记录到Win2000/NT事件日志中
q~w;C([k_ /// <param name="message">需要记录的文本信息</param>
pbzbh&Y /// </summary>
'I<j`)4`d public static void WriteTrace(String message)
L3GJq{t {
N )!v-z,k WriteLog(TraceLevel.Verbose, message);
I!(yU }
ky~ x4_y5 &(rd{j/* /// <summary>
Dq?2mXOqD /// 格式化记录到事件日志的文本信息格式
SRD&Uf0M /// <param name="ex">需要格式化的异常对象</param>
Rke:*(p*n; /// <param name="catchInfo">异常信息标题字符串.</param>
^=W&p%Y(! /// <retvalue>
TdE_\gEo/R /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
=#V11j /// </retvalue>
Z|/):nVP7 /// </summary>
F4&N;Zm2 public static String FormatException(Exception ex, String catchInfo)
SW; bE {
]rN fr- StringBuilder strBuilder = new StringBuilder();
&*yve}su if (catchInfo != String.Empty)
}fCM_w {
5rWRE- strBuilder.Append(catchInfo).Append("\r\n");
)m'_>-`^: }
)/ZSb1! strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
ZF
t^q/pw return strBuilder.ToString();
z<fEJN }
2"MI8EK 8;'n.SC{ /// <summary>
UA9LI<Y /// 实际事件日志写入方法
K$]QzPXS /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
zh.c_>jS /// <param name="messageText">要记录的文本.</param>
lET)<V(Y /// </summary>
Ck:J private static void WriteLog(TraceLevel level, String messageText)
< 5PeI {
)aC+qhh try
i3"sArP"| {
"_K 6= EventLogEntryType LogEntryType;
/iN\)y#u1 switch (level)
sXa8(xc {
64vSJx>u case TraceLevel.Error:
[>:gwl
_\ LogEntryType = EventLogEntryType.Error;
=_H39)|T break;
5QSmim case TraceLevel.Warning:
1P[Lz!C LogEntryType = EventLogEntryType.Warning;
nGbrWu]w break;
sy?>e*-{ case TraceLevel.Info:
o{he)r6)_ LogEntryType = EventLogEntryType.Information;
VM,ZEt3Vy break;
#Kl2K4 case TraceLevel.Verbose:
+o3g]0 LogEntryType = EventLogEntryType.SuccessAudit;
z3C^L break;
8<kme"%s default:
#~+#72+x7 LogEntryType = EventLogEntryType.SuccessAudit;
>gZz`CH break;
J:u|8>; }
u J`&hX cP1jw%3P EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
k:TfE6JZ //写入事件日志
f3N:MH-c eventLog.WriteEntry(messageText, LogEntryType);
8Vn6* Xn q KM]wu0Et }
?R(3O1,v^ catch {} //忽略任何异常
IebS~N
E }
5);#\&B } //class ApplicationLog
J qUVGEg }
)ziQ=k6d6 nB5[]x' 12.Panel 横向滚动,纵向自动扩展
!{Y#<tG] <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
4BT`|(7 F^YIZ,=p! 13.回车转换成Tab
_}&]`,s> <script language="javascript" for="document" event="onkeydown">
C6VoOT)\ if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
*r`Yz} event.keyCode=9;
9NP l]iA) </script>
Tv$7aVi! !Ia"pNDf onkeydown="if(event.keyCode==13) event.keyCode=9"
%D
r?.e +V@=G &Ou0 14.DataGrid超级连接列
~Z]vr6?$h DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
i .N1Cvp& !_9$[Oq~ 15.DataGrid行随鼠标变色
$vBU}~l7 private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
(L>[,YO9 {
>, E$bm2 if (e.Item.ItemType!=ListItemType.Header)
9+QrTO {
5E!m! nBZ e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
hU
7fZl%yl e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
]M(mq`K }
sZ"U=6R }
[kOA+\v /[ ? F1Q 16.模板列
~vGtNMQg <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
`z_7[$\~ <ITEMTEMPLATE>
EKPTDKut <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
;J(,F:N </ITEMTEMPLATE>
rcZ SC3 </ASP:TEMPLATECOLUMN>
Qu,k jw[BtRW <ASP:TEMPLATECOLUMN headertext="选中">
*Zi%Q[0Me <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
p'uz2/g <ITEMTEMPLATE>
$ rYS <ASP:CHECKBOX id="chkExport" runat="server" />
tb0E?&M </ITEMTEMPLATE>
wYA/<0'yH <EDITITEMTEMPLATE>
Yp]G)}'R <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
Pp_3 nyQ </EDITITEMTEMPLATE>
EQ7n'Wqq </ASP:TEMPLATECOLUMN>
5j,qAay9 8 %j{4$ 后台代码
o0G`Xn protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
Qc;[mxQe {
51
0XDl~b //改变列的选定,实现全选或全不选。
{p|%hhTK% CheckBox chkExport ;
/:`
i%E if( CheckAll.Checked)
WKl' {
kqW<e[ foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
6b70w @P! {
huJq#5? chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
lK,=`xe chkExport.Checked = true;
%hbLT{w
}
G}#/`]o!K }
+MZO%4 else
X8
)>}#: {
bH/pa#G(
foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
1?RCJ]e5 {
4)HWPX chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
AC:s4iacC chkExport.Checked = false;
RzRvu]]8 }
p=+*g.,O }
O^Vy"8Ji}y }
M`P]cX)x Oawr S{ 17.数字格式化
Z'NbHwW} D}/=\J/ 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
Hu9R.[u <%#Container.DataItem("price","{0:¥#,##0.00}")%>
mBZDl4 ' "QO/Jls int i=123456;
O*03PF^ string s=i.ToString("###,###.00");
]cqZ!4?_ z|]oM#Gt 18.日期格式化
!mxh]x<e o9LD6$ 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
1O2h9I$bk F|Dz]ar 显示为: 2004-8-11 19:44:28
]jVSsSv bp>ps@zFq 我只想要:2004-8-11 】
; G59}d
p~ <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
^wF@6e7/& Q^Z<RA(C 应该如何改?
?>.g;3E$ 9LEilmPs 【格式化日期】
id tQXwa |5IY`;+9 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
)~.&bEm\ W,/C?qFp 【日期的验证表达式】
o`K^Wy~+k# :.S41S A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
\+Rwm:lI ^((\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})))?$
qi SEnRG. Gr#rM/AfCK B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
ZC5Yve8 ^\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]))$
^s@*ISY :uwRuPI 【大小写转换】
mrhp)yF HttpUtility.HtmlEncode(string);
5Vqmv<F;$Z HttpUtility.HtmlDecode(string)
*[xNp[4EU ;WS7. 19.如何设定全局变量
QR5,_wJ& (: TGe v Global.asax中
UiK+c30FU K"k"ml<4E Application_Start()事件中
]PzTl {] r$r&4dY 添加Application[属性名] = xxx;
a4jnu:e KBr5bcm4u 就是你的全局变量
Wt+y-ES cUZ!;* 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
2rj/wakd R)d99j^" HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
_.OMjUBZT f1Yv hvWL 【ASPNETMENU】点击菜单项弹出新窗口
dx13vZ3[U XW~ BEa 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
tT* W5 <?xml version="1.0" encoding="GB2312"?>
YZBzv2'\x <MenuData ImagesBaseURL="images/">
qsft*& <MenuGroup>
nrS[7~ <MenuItem Label="内参信息" URL="Infomation.aspx" >
LN.Bd, <MenuGroup ID="BBC">
*K}z@a_ <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
:nKsZ1b X <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
d7gH3 l ......
5S\][;u g^z5fFLg/8 最好将你的aspnetmenu升级到1.2版
Tw}?(\ya D0#T-B\# 21.读取DataGrid控件TextBox值
2%5^Fi foreach(DataGrid dgi in yourDataGrid.Items)
?79SP p)oo {
urT/+deR TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
oBRm\8 2| tb.Text....
8tV=fSHd }
0r0\b*r qP;{3FSkAF 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?
K#l
-? 5DkK'tCI9Z 〖思归〗
. QQ?w <asp:TemplateColumn HeaderText="数量">
zL)1^[%O9 <ItemTemplate>
lTV@b& <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
o5=)~D{/G3 onkeyup="javascript:DoCal()"
NoJnchiU />
uG=t?C6 ^J#?hHz <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
;/?Z<[B </ItemTemplate>
>}<29Ii </asp:TemplateColumn>
|t&G&)~: b:F Ep'ZS <asp:TemplateColumn HeaderText="单价">
ot@|blVC8 <ItemTemplate>
3@PUg(M <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
+p9LE4g7Q onkeyup="javascript:DoCal()"
U^[cYTG />
,30FGz^i #.E\,N' <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
24H^hN9 |&elZ}8 </ItemTemplate>
]k'#g Z$ </asp:TemplateColumn>
|TB@@ 2Ky& lBlSNDs <asp:TemplateColumn HeaderText="金额">
|t4Gz1"q=8 <ItemTemplate>
Tn4W\?R <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
~t{D5#LVHa </ItemTemplate>
9{)Z5%Kz </asp:TemplateColumn><script language="javascript">
c$,c`H(~ function DoCal()
6\,DnO {
6[+\CS7Lt var e = event.srcElement;
zB#_:(1qK var row = e.parentNode.parentNode;
LyuSZa] var txts = row.all.tags("INPUT");
MekT?KPQ{L if (!txts.length || txts.length < 3)
(
oQ'4,F return;
'[>\N4WD 0kU3my] var q = txts[txts.length-3].value;
o,S!RG& var p = txts[txts.length-2].value;
!dfS|BA] /*u#Ba<< if (isNaN(q) || isNaN(p))
J6)efX)j-p return;
C6K|:IK{ b4Ricm q = parseInt(q);
6WA|'|}= p = parseFloat(p);
F^.om2V|9 ki;!WhF~ txts[txts.length-1].value = (q * p).toFixed(2);
B;xZ%M] }
iEiu%T> </script>
aL8p"iSG9 zyaW3th c=b+g+*xd "bD+/\ z :dc"b?Ch 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
c@RT$Q9j page_load
opm?':Qst page.smartNavigation=true
p+orBw3 9U#\nXM 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 ?
Z{Vxr*9oO private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
FovE$Dj] {
OZ(Dpx(Q for(int i=0;i<e.Item.Cells.Count-1;i++)
/C*~/} if(e.Item.ItemType==ListItemType.EditType)
B3y?. {
%*$5!; e.Item.Cells.Attributes.Add("Width", "80px")
Wyy^gJl }
wVx,JL5Jr }
=LlLE<X"%x FWuw/b$ 26.对话框
H"#)&a7 private static string ScriptBegin = "<script language=\"JavaScript\">";
i/NDWVFD private static string ScriptEnd = "</script>";
S:/{ 7n\ ThfH{ public static void ConfirmMessageBox(string PageTarget,string Content)
\:]DFZ= ! {
<_"B}c/2$ string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
Gx.P]O 3 O4m(Er@a ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
L/H v4={ "/Y<G Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
"Z;~Y=hC13 ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
z'7#"D //Response.Write(strScript);
q}#iV$dAj }
|:./hdcad IZO@V1-m 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
D,c!#(v cK 25aNC;J 1.1 取当前年月日时分秒
d2RnQA currentTime=System.DateTime.Now;
SXQ@;=]xV "Owct(9 1.2 取当前年
r)gCTV(kb int 年= DateTime.Now.Year;
^`tk/#h\9F p= {Jf}v 1.3 取当前月
`&7mHa61 int 月= DateTime.Now.Month;
#"::
'?, fi=0{ 1.4 取当前日
dw~[9oh int 日= DateTime.Now.Day;
):3MYSqX *~cqr 1.5 取当前时
v9u<F6 int 时= DateTime.Now.Hour;
ERF,tLa! w'A tf 1.6 取当前分
'0]r<O int 分= DateTime.Now.Minute;
E_~x==cb Yg/}ghF\ 1.7 取当前秒
BU!#z(vU int 秒= DateTime.Now.Second;
J5;5-:N xZX`%f- 1.8 取当前毫秒
s8^~NX(xdy int 毫秒= DateTime.Now.Millisecond;
88
{1mA,v fO6[!M( 28.自定义分页代码:
xPt*CB G%S6$@: 先定义变量 :
/?Vdqci public static int pageCount; //总页面数
_l<mu? " public static int curPageIndex=1; //当前页面
cg,Ua!c y=w`w>% 下一页:
(z/jMMms if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
j?xk& {
D z@1rc<B DataGrid1.CurrentPageIndex += 1;
\SOeTn+ curPageIndex+=1;
S`=n&' }
$ADPV,*gG "qawq0P8Z bind(); // DataGrid1数据绑定函数
7Re-5vz
R BBxc*alG0 上一页:
COSTV>s; if(DataGrid1.CurrentPageIndex >0)
FY8!g'.Oe {
Y.>kO DataGrid1.CurrentPageIndex += 1;
dByjcTPA curPageIndex-=1;
\QGa4_# }
f3G1r5x C,"=}z1P bind(); // DataGrid1数据绑定函数
bG(x:Py& |H
W(
vA 直接页面跳转:
@TysXx int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
)\>r-g$ je,c7ZFO if(a<DataGrid1.PageCount)
+Qs!Nhsq {
TiyUr [ this.DataGrid1.CurrentPageIndex=a;
m2(E>raV6 }
DVh)w}v <4c%Q) bind();
pA.._8(t qp>N^)> 29.DataGrid使用:
-(9O6)Rs$ 7Lg7ei2mN7 添加删除确认:
}Gr&w-v private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
d`Oe_< {
xIL#h@dz foreach(DataGridItem di in this.DataGrid1.Items)
0Gsu {
!"E-\cc' if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
(9]6bd {
zT7"VbP ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
(~&w-w3 }
O#EqG.L5 }
:H?f*aw }
\lEkfcc zb :kanb- 样式交替:
W pN.]x ListItemType itemType = e.Item.ItemType;
& fu z2xv {E51Kv&_ if (itemType == ListItemType.Item )
;1`!wG-DD {
2Lfah?Tx~C e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
E]1##6Ae e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
V&*D~Jq }
NEVp8)w else if( itemType == ListItemType.AlternatingItem)
s?c JV` {
5/?P|T e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
@7W?8 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
qSTW b% }
`\N]wlB2/b Jf_%<\ O 添加一个编号列:
<bUXC@3W DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
@?Zf-. DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
@h}`DNaZ^ j (ygQ4T for(int i=0;i<dt.Rows.Count;i++)
b7Oj<!Wo` {
w2OsLi Sv dt.Rows["number"]=(i+1).ToString();
Od{jt7 <j# }
~}Z'0W)Q`z ?:igumeYX DataGrid1.DataSource=dt;
oa`#RC8N DataGrid1.DataBind();
{DwIjy31T m#\[m<F DataGrid1中添加一个CheckBox,页面中添加一个全选框
,Dp0fauJ private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
!9]d|8! {
,lm=M5b foreach(DataGridItem thisitem in DataGrid1.Items)
9S>g6}[E#0 {
+sf .PSz$ ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
!^WHZv4 }
S^N{wZo }
:( ,mL2[ fu4!t31 将当前页面中DataGrid1显示的数据全部删除
0V`[Zgf foreach(DataGridItem thisitem in DataGrid1.Items)
dv!r. {
,j178EX if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
?djQZ* {
opp!0:jS* string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
.Djta|puu Del (strloginid); //删除函数
C6jR=@42Q }
zN!j%T.e
}
BStk&b kOjf #@c 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)
Lm6**v u =J&~ 在Application_Start中添加以下代码:
h@1!T Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
<)U4Xz ? AppSettings["ConnStr"].ToString();
5 1dSFr<# `1+F,&e 31. 变量.ToString()
_<*Hv*Zm )`+YCCa6F 字符型转换 转为字符串
pe.QiMW{8 12345.ToString("n"); //生成 12,345.00
`A)"%~ 12345.ToString("C"); //生成 ¥12,345.00
h<x4YB5Mj 12345.ToString("e"); //生成 1.234500e+004
wCCV2tk 12345.ToString("f4"); //生成 12345.0000
u0
y 1 12345.ToString("x"); //生成 3039 (16进制)
2@khSWV 12345.ToString("p"); //生成 1,234,500.00%
4kl Ao$ X`JVR"=4 32、变量.Substring(参数1,参数2);
?*u*de[, S6D^3n 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);
gl7|H&&xV Hd &{d+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)
C6
" <SCRIPT language="javascript">
qCPmbg <!--
%d;ezY '2 function gook(pws)
(sTuG} {
t ls60h frm.submit();
1m@^E:w }
9 OT,TpA //-->
,}SCa'PB eQDX:b </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
3EK9,:<Cf <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
u2iXJmM* <tr>
s'\$t <td>
(gXN%rsY <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
Vba.uKNjk <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
(zcLx;N
<input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
M(Zc^P}N ,wAz^cK| <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
$}o
b,i^W <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
tTanW2C 'LS z f/w </td>
bt/ =Kq# y2|R.EU\m< </tr>
p $`92Be/ *>[3I}mM </form>
(u1m]WYL ~nY]o"8D 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。
}q[Bd >BVoHt~; 下面是获取用户输入的登陆信息的代码:
'{b1!nC; string name;
s60
TxB name=Request.QueryString["EmailName"];
L{fFC%|l2L Hi}RZMr1 try
$E!J:Y= {
j\&pej int a=name.IndexOf("@",0,name.Length);
# Su~`] f_user.Value=name.Substring(0,a);
Zjh2{ : f_domain.Value=name.Substring(a+1,name.Length-(a+1));
[wnDHy6W f_pass.Value=Request.QueryString["Psw"];
,5Vt]#F5@ }
jp2Q9Z PBjmGwg7 catch
s^8u&y)3 {
s Be7"^ Script.Alert("错误的邮箱!");
!|Q5Zi;aX7 Server.Transfer("index.aspx");
>QkP7Kb }