1. 打开新的窗口并传送参数:
hwVAXsF~ }lP 5GT2 传送参数:
/C$
xH@bb response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
`?9T~, ZPyM>XK$4 接收参数:
*QH[,F`I string a = Request.QueryString("id");
8bOT*^b$H string b = Request.QueryString("id1");
T4r5s NR4Jn?l{ 2.为按钮添加对话框
~+HoSXu@E Button1.Attributes.Add("onclick","return confirm(’确认?’)");
o@/xPo| button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
w<t,j~ Pr# qVBL>9O*. 3.删除表格选定记录
q (>c`5 int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
AIh*1>2Xn string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
_faJ B@a_ :#$F)]y'\ 4.删除表格记录警告
yN\e{;z` private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
:wipE]~4t {
bRPO:lAy switch(e.Item.ItemType)
=nU/ [T. {
!;dSC< case ListItemType.Item :
FP@qh case ListItemType.AlternatingItem :
DZs^ 2Zc case ListItemType.EditItem:
i8~$o:&HT TableCell myTableCell;
c!Dc8=nE0m myTableCell = e.Item.Cells[14];
xU}M;4kH~ LinkButton myDeleteButton ;
73
V"s myDeleteButton = (LinkButton)myTableCell.Controls[0];
f^9&WT myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
PZ,z15PG] break;
l>&sIX default:
.Xd0
Q=1h break;
8!zbF<W9 }
tZA: -(IC~ }
N:x0w+Ca {DBIonY]; 5.点击表格行链接另一页
= .`jjDJ private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
J`oTes, {
v <Hb-~ //点击表格打开
z[9UQU~x? if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
I:$"E%
>= e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
r,xmEj0E }
ZL_[4Y B~TN/sd 双击表格连接到另一页
@6&JR<g*t ;h~er6& 在itemDataBind事件中
V1<`%=%_W if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
+a$|Sc
{
X:=c5*0e string OrderItemID =e.item.cells[1].Text;
2o5;Uz1{ ...
}1 QF+Cf e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
)q3"t2- }
v01#>,R Q$a 双击表格打开新一页
YaL]>.;Z:" if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
k+1gQru{d {
t;47(U string OrderItemID =e.item.cells[1].Text;
#C*&R>IvY ...
]ii+S"U3 e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
u) *Kws }
WRpyr eVt1d2.O ★特别注意:【?id=】 处不能为 【?id =】
AK2WN#u@Z 6.表格超连接列传递参数
n29(!10Px <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
ddDS=OfH <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
lS9n@ NK/4OAt% 7.表格点击改变颜色
wss?|XCI if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
SUE
~rb {
Q_O*oT(0 e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
4|Ui?.4= this.style.color=’buttontext’;this.style.cursor=’default’;");
2]ti!< }
::"E?CQLV i@zY9,b 写在DataGrid的_ItemDataBound里
V3.t;.@ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
zxKCVRJ {
%}b8aG+ e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
LM.`cb;?G this.style.color=’buttontext’;this.style.cursor=’default’;");
Zdn!qyR` e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
h-mTj3p-K }
O4Dr ]Xc] ~<ri97) W`L!N&fB 8.关于日期格式
l\Xd.H" j, ycX{NDGs 日期格式设定
ngyY DataFormatString="{0:yyyy-MM-dd}"
44-r\> !ALZBB .r( 我觉得应该在itembound事件中
p;%<mUI e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
:6Pad
CL3xg)x6 9.获取错误信息并到指定页面
;p Z[| |_zO_F rtp 不要使用Response.Redirect,而应该使用Server.Transfer
bd \=h1 :&yDqoQKJ e.g
^:cRp9l"7 // in global.asax
P))^vUt~ protected void Application_Error(Object sender, EventArgs e) {
FFzH!=7T? if (Server.GetLastError() is HttpUnhandledException)
&u8z5pls8 Server.Transfer("MyErrorPage.aspx");
[m2+9MMl r<yhI>>;< //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
PRr*]$\&Mj }
fL6e?\Pw xPC"c* 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
p538r[f< DTY<0Q. 10.清空Cookie
FvXqggfGv Cookie.Expires=[DateTime];
j
_ ;fWBD: Response.Cookies("UserName").Expires = 0
z<n-Gzwk lLiQ ;@ 11.自定义异常处理
wE Qi0! //自定义异常处理类
'`l K'5; using System;
&jf7k
<^ using System.Diagnostics;
)=_ycf^MC ]QrR1Rg namespace MyAppException
#`ejU &!6 {
GYK\LHCPd /// <summary>
JN[0L: /// 从系统异常类ApplicationException继承的应用程序异常处理类。
.v])S}K /// 自动将异常内容记录到Windows NT/2000的应用程序日志
4hAJ!7[A. /// </summary>
3S"] u} public class AppException:System.ApplicationException
dM]#WBOPy {
O\Eqr?%L) public AppException()
>K)2NLW\xA {
sb.J
bE8
if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
Eipp~GD }
nk@atK,38^ n=!uNu7 public AppException(string message)
9& {
#oV+@D` LogEvent(message);
4 I@p%g& }
,8VU&?`<} a!,r46>$H public AppException(string message,Exception innerException)
oF|N O^H {
n WaNT- LogEvent(message);
gH7z if (innerException != null)
G+WM`:v8% {
>l5u54^3K LogEvent(innerException.Message);
I1=(. *B} }
;=~Xr"(/z }
~`cwG`
'N S!Jh2tsg`- //日志记录类
#R5U
using System;
1r9 f[j~ using System.Configuration;
-5Utlos using System.Diagnostics;
1oY^]OD]W using System.IO;
HW[L[&/ using System.Text;
*e{PxaF!C using System.Threading;
tP(h9|[N bcz-$?] namespace MyEventLog
]?<n#=eW {
Y83GKh,* /// <summary>
pv# 2]v /// 事件日志记录类,提供事件日志记录支持
0A[e sWmP /// <remarks>
#kcSQ' /// 定义了4个日志记录方法 (error, warning, info, trace)
C/tr$.2H= /// </remarks>
WUoOGbA ` /// </summary>
,sQ93(Vo public class ApplicationLog
Lp&k3?W {
\3zj18(@8! /// <summary>
7y<1LQ;} /// 将错误信息记录到Win2000/NT事件日志中
:T@r*7hNT /// <param name="message">需要记录的文本信息</param>
<~"lie1 /// </summary>
Poy^RpnX public static void WriteError(String message)
YT-=;uK^S {
)K]pnH| WriteLog(TraceLevel.Error, message);
2F+gF~znQ }
QMp rv*i 1wn&js C /// <summary>
WeJ@xL /// 将警告信息记录到Win2000/NT事件日志中
Xu} U{x> /// <param name="message">需要记录的文本信息</param>
\caH pof /// </summary>
!xK=#pa public static void WriteWarning(String message)
eSy(~Y {
J"CJYuGW, WriteLog(TraceLevel.Warning, message);
<"tDAx }
"@ E3MTW Gi?_ujZR /// <summary>
!@L=;1, /// 将提示信息记录到Win2000/NT事件日志中
p,!$/Q+l /// <param name="message">需要记录的文本信息</param>
e XV@. /// </summary>
(K{5fC public static void WriteInfo(String message)
vmZ"o9-{#X {
5<+K?uhm WriteLog(TraceLevel.Info, message);
P,z:Z|}8 }
:#{Xuy: /// <summary>
{6,|IGAq
V /// 将跟踪信息记录到Win2000/NT事件日志中
+l0g`: /// <param name="message">需要记录的文本信息</param>
\;9W.d1iU /// </summary>
hv)8K'u public static void WriteTrace(String message)
-4 Ux,9& {
e@]-D
FG WriteLog(TraceLevel.Verbose, message);
mOBACTY^ }
E`;;&V q- b>=_*nw9 /// <summary>
!]koSw} /// 格式化记录到事件日志的文本信息格式
DSyXr~p8 /// <param name="ex">需要格式化的异常对象</param>
w=_Jc8/. /// <param name="catchInfo">异常信息标题字符串.</param>
+pmu2}E.3 /// <retvalue>
4{na+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>
Y "jE' /// </retvalue>
YZwaD b /// </summary>
-j2 (R?a public static String FormatException(Exception ex, String catchInfo)
-K%5(Eg {
\OwpD,' StringBuilder strBuilder = new StringBuilder();
v/Pw9j!r;m if (catchInfo != String.Empty)
+s[\g>i {
2&LQg=O strBuilder.Append(catchInfo).Append("\r\n");
aMuVqZw }
}SfbCa)UO strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
blt'={Z?.x return strBuilder.ToString();
8*a),
3aK }
pbk$o{$`W l]LxL /// <summary>
4ne5=YY* /// 实际事件日志写入方法
9<1F[SS<s9 /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
TJ_=1Y@z /// <param name="messageText">要记录的文本.</param>
X`r*ob /// </summary>
:}}%#/nd private static void WriteLog(TraceLevel level, String messageText)
iz^qR={bW {
IyUdZ,ba try
UE0$ o? {
|zsbW9
W*m EventLogEntryType LogEntryType;
Kuw^qX" switch (level)
ocR dbmS {
@cvP0A case TraceLevel.Error:
`}gbc69 LogEntryType = EventLogEntryType.Error;
PX
O!t]* break;
>t+
qe/ case TraceLevel.Warning:
^>c8t_RG LogEntryType = EventLogEntryType.Warning;
@tT-JwU break;
hsNWqk qys case TraceLevel.Info:
J ++v@4Z LogEntryType = EventLogEntryType.Information;
)0 Z! n break;
I*|P@0 case TraceLevel.Verbose:
X ]j)+DX> LogEntryType = EventLogEntryType.SuccessAudit;
A#@_V'a8 break;
Ub$n |xn default:
,J=P,]( LogEntryType = EventLogEntryType.SuccessAudit;
hwnJE958L break;
~2*9{ }
p3951-D FiAY\4 EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
n> w`26MMp //写入事件日志
cNK)5-
U eventLog.WriteEntry(messageText, LogEntryType);
)]6hy9< ).412I }
)r6EW`$ catch {} //忽略任何异常
oy.[+EI`| }
y0bq;(~X~ } //class ApplicationLog
b'p4wE> }
"jg@w%~ " {dek 12.Panel 横向滚动,纵向自动扩展
#CUzuk& <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
QV|>4 ^1D 1+kE!2b;b 13.回车转换成Tab
E9fxjI%1 <script language="javascript" for="document" event="onkeydown">
Gs0H@ if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
_'0
@%P% event.keyCode=9;
(U1]:tZ<. </script>
*A}WP_ZQ (GKpA}~R onkeydown="if(event.keyCode==13) event.keyCode=9"
wEft4o 'o4p#`R:8 14.DataGrid超级连接列
P87#
CAN DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
fL*T3[d C}}/)BYi 15.DataGrid行随鼠标变色
sp9W?IJ 6c private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
wVl+]zB {
GC@+V|u if (e.Item.ItemType!=ListItemType.Header)
=6 r:A<F!n {
U7$WiPTNL9 e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
r4}*l7Q e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
%ati7{2! }
0S/'
94%w }
fRZ KEIyk W_YY#wf_ 16.模板列
q1VH5'p@ <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
b{M7w <ITEMTEMPLATE>
n`7f"'/: <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
P A;6$vqX </ITEMTEMPLATE>
^_+XDO </ASP:TEMPLATECOLUMN>
B}?IEpYp NaUr!s <ASP:TEMPLATECOLUMN headertext="选中">
<X7\z <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
d3Di/Iej <ITEMTEMPLATE>
)U
t5+-UK <ASP:CHECKBOX id="chkExport" runat="server" />
T Eu'*>g </ITEMTEMPLATE>
_Q(g(p& <EDITITEMTEMPLATE>
G%lu28}D <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
$0A ~uDbs </EDITITEMTEMPLATE>
.N m su+s </ASP:TEMPLATECOLUMN>
T?
,P*l b-5y9 K 后台代码
zDOKShG protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
\6I+K" {
%b2oiKSBx? //改变列的选定,实现全选或全不选。
r{?TaiK CheckBox chkExport ;
LaMLv<)k if( CheckAll.Checked)
_~'+Qe_o$5 {
s,]%dG! foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
v;1F[?@3Y {
n'FwM\ chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
ksR1kvTm chkExport.Checked = true;
eet Q}] }
DPn=n9n2 }
?DV5y|}pj else
~ Hy,7 {
,FzeOSy'p foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
Y k7-` {
Kn;D?ioY chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
&BE
g chkExport.Checked = false;
vV?rpe|% }
c"tJld5F_ }
{No L }
a`Qot d@C&+#QDF 17.数字格式化
)v4b m^~ S 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
vxQ8t!-u <%#Container.DataItem("price","{0:¥#,##0.00}")%>
~p0c3* una%[jTc int i=123456;
nKr9#JebRC string s=i.ToString("###,###.00");
K4Dp:2/K% |]=2 }%1w 18.日期格式化
Q _iO(qu
6 WG71k8af 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
\G@wp5
UO Ug 4 显示为: 2004-8-11 19:44:28
K5t0L!6<+ !5@_j,lW( 我只想要:2004-8-11 】
Os%n{_#8 <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
qml2XJ> =DbY? Q<Q 应该如何改?
`/&SxQB< Z;Rp+X 【格式化日期】
pv!oz2w1 [%A4]QzWh 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
?(6m VyIe C#V ~Y 【日期的验证表达式】
5+Mdh` \VMD$zZx A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
Ty(@+M~- ^((\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})))?$
4674SzL )jrT6x^IB B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
t+r:"bb ^\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]))$
va|*c22;| Q?t^@ 【大小写转换】
?']h%'Q
HttpUtility.HtmlEncode(string);
F1%vtk;2? HttpUtility.HtmlDecode(string)
P>Euq'ajX S"m cUU}} 19.如何设定全局变量
`fXyWrz-k j9+I0>#X Global.asax中
98jN)Nl,oD xda;
K~w Application_Start()事件中
M]v=- U).*q?.z 添加Application[属性名] = xxx;
<N,)G
|& DHC+C4 就是你的全局变量
RPnRVJ&"Z Mp$@`8X` 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
`p kMN _M[,!{ C HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
{%v-( q@5K6yE 【ASPNETMENU】点击菜单项弹出新窗口
Y<"7x#AB! cV{%^0?D 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
y)c5u%( <?xml version="1.0" encoding="GB2312"?>
^I
mP`*X <MenuData ImagesBaseURL="images/">
pg+[y<B <MenuGroup>
wu9=N
^x <MenuItem Label="内参信息" URL="Infomation.aspx" >
5BkV aF7Th <MenuGroup ID="BBC">
*1Z5+uVT[ <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
O#EV5FeF. <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
lOwS&4UT ......
\qvaE+ u}bf-;R 最好将你的aspnetmenu升级到1.2版
DD9 ?V}Yx nfW&1a 21.读取DataGrid控件TextBox值
q}BzyC=:n foreach(DataGrid dgi in yourDataGrid.Items)
gnp~OVDqfL {
^04Q %, TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
U!%!m' tb.Text....
5Ky#GuC }
XNMa0 gk BdR + 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
w6dFb6~R -F"QEL# 〖思归〗
9~rUkHD <asp:TemplateColumn HeaderText="数量">
/y7M lU9 <ItemTemplate>
%n%xR%| <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
4Tc&IwR onkeyup="javascript:DoCal()"
p,pR!qC> />
CBQhIvq.d SQ,?N
XZ <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
7+TiyY]K </ItemTemplate>
S_T^G` [ </asp:TemplateColumn>
_qqr5NU $uui:wU%Q <asp:TemplateColumn HeaderText="单价">
8 #X5K <ItemTemplate>
\k`n[{ <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
+`M!D }! onkeyup="javascript:DoCal()"
LWsP ya />
']-@?sD$ CxhY$%C (L <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
d8SE,A& Q(d9n8 </ItemTemplate>
rKHY?{! </asp:TemplateColumn>
q{2I_[p }ZSQ>8a <asp:TemplateColumn HeaderText="金额">
49Df?sx <ItemTemplate>
*tOG*hwdT <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
GT hL/M
</ItemTemplate>
UmnE@H"t$\ </asp:TemplateColumn><script language="javascript">
e6X[vc|Y} function DoCal()
6J~12TU, {
X1[CX&Am var e = event.srcElement;
O<)y-nx;X var row = e.parentNode.parentNode;
22<0DhJ var txts = row.all.tags("INPUT");
?.c;oS| if (!txts.length || txts.length < 3)
MF60-VE return;
_mS!XF~`P 0U/K7sZ var q = txts[txts.length-3].value;
c(co\A.]:6 var p = txts[txts.length-2].value;
DcIvhB p cr?7O;, if (isNaN(q) || isNaN(p))
to8X=80-3 return;
JxLf?ad. }7G8|54t q = parseInt(q);
FG3UZVUg9 p = parseFloat(p);
f\;65k_jq rPc7(,o* txts[txts.length-1].value = (q * p).toFixed(2);
IC{eE }
y~
G.V,0 </script>
Zn,>]X <X TU8G %;D+k k *R<, 3ZTE<zRQ 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
Z=4{Vv* page_load
zL5d0_E9 page.smartNavigation=true
'6$*YN&5 ODc9r } 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 ?
;o/>JHGj private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
Pi%%z
{
B,z<%DAE for(int i=0;i<e.Item.Cells.Count-1;i++)
>vrxP8_
if(e.Item.ItemType==ListItemType.EditType)
~Au,#7X) {
k"kJ_( e.Item.Cells.Attributes.Add("Width", "80px")
d_S*#/k }
bW#@OrsS }
wiOgyMdx Y=Z1Tdxa| 26.对话框
]maYUKqv}' private static string ScriptBegin = "<script language=\"JavaScript\">";
5#3W5z private static string ScriptEnd = "</script>";
2>}xhQJ C^t(^9 public static void ConfirmMessageBox(string PageTarget,string Content)
krq/7| {
Z'^U ad6 string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
7z\m;
1 PCd0 ?c ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
KucV3-I /$n ~lf Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
c[}(OH ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
V&soN:HS //Response.Write(strScript);
.%'(9E }
ES <1tG VhT=
l 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
in<Rq"L UV}73Sp 1.1 取当前年月日时分秒
5ep/h5*/ currentTime=System.DateTime.Now;
j4FeSGa Lf:uNl*D 1.2 取当前年
oHM
] int 年= DateTime.Now.Year;
*O:r7_ Y0 &"_u}I&\ 1.3 取当前月
ERUt'1F?] int 月= DateTime.Now.Month;
`<^VR[Mx a/~aFmu6b 1.4 取当前日
rzrl>9
h int 日= DateTime.Now.Day;
E'1+ Yq {)- .xG 1.5 取当前时
)f+U~4G& int 时= DateTime.Now.Hour;
|CgnCUv+ ]U[X1W+@ 1.6 取当前分
JJV0R}z?TV int 分= DateTime.Now.Minute;
jk\ dG16 y#Ht{)C 1.7 取当前秒
* v8Ts int 秒= DateTime.Now.Second;
zWw2V}U! 8T;IZ(s 1.8 取当前毫秒
n<Svwa} int 毫秒= DateTime.Now.Millisecond;
QYXx:nIrg I~PDaZP 28.自定义分页代码:
B}OY/J/*8 "`}~~.q 先定义变量 :
p6EDQwlf public static int pageCount; //总页面数
+c:3o* public static int curPageIndex=1; //当前页面
4A{|[}! d
{lP 下一页:
?:^mBb)T if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
n?#!VN3 {
Z>F^C}8f DataGrid1.CurrentPageIndex += 1;
C7T(+Wd!, curPageIndex+=1;
\u`)kJ5o1 }
:Ud[f`t ]u-SL md bind(); // DataGrid1数据绑定函数
:&}odx!-!C '"pd 上一页:
3[p_!eoW if(DataGrid1.CurrentPageIndex >0)
0uVv<Q~ {
W#_/ak$uF* DataGrid1.CurrentPageIndex += 1;
nGZX7Fx5 curPageIndex-=1;
>,C4rC+:XN }
MB);!qy wYeB)1. bind(); // DataGrid1数据绑定函数
(dJI_A \8uo{#cL8 直接页面跳转:
'2J0>Bla int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
/4=-b_2Y~ C`oa3B,z if(a<DataGrid1.PageCount)
si1*Wt<3Bc {
_\5~>g_ this.DataGrid1.CurrentPageIndex=a;
z
`8cOK- }
~>G]_H]? `U!y&Q$, bind();
GYRYbiwqdi '/0#lF 29.DataGrid使用:
W:&R~R k!jNOqbb 添加删除确认:
-y) ,Y
| private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
nR
\'[~+ {
${~|+zdB foreach(DataGridItem di in this.DataGrid1.Items)
Itm8b4e9; {
&0N<ofYX if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
~+D*:7Y_ {
E
?2O( ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
rt]S\
}
oqkVYl E }
a<XCNTaVT }
=<f-ob8, j dut4 nFc 样式交替:
$X`y%*<<v ListItemType itemType = e.Item.ItemType;
CF
y}r(q $KV&\Q3\0 if (itemType == ListItemType.Item )
<x%M3BTx {
Dkw%`(Oh/, e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
O[~x_xeW e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
ClW'W#*(Y }
2)iD4G` else if( itemType == ListItemType.AlternatingItem)
uE_c4Hp {
xc
1A$EY e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
jX=lAs~6 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
@
$cUNvI }
`cP <}^] \L!uHAE2a 添加一个编号列:
`&7RMa4= DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
A Ayv DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
<T,A&`/ `ue[q!Qq for(int i=0;i<dt.Rows.Count;i++)
~d>%,?zz {
`linG1mF dt.Rows["number"]=(i+1).ToString();
8"'x)y }
tgFJZA ?v]-^X=& DataGrid1.DataSource=dt;
rp!
LP#* DataGrid1.DataBind();
E,G<_40 ;#?M)o:q DataGrid1中添加一个CheckBox,页面中添加一个全选框
ucYkxi`x private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
IxSV? k
{
>X}{BDMb. foreach(DataGridItem thisitem in DataGrid1.Items)
u/^|XOy {
g1m-+a ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
@_'OyRd8 }
Go\VfLL w }
d{+(Lpj^ vL_zvXA 将当前页面中DataGrid1显示的数据全部删除
M.%shrJ/ foreach(DataGridItem thisitem in DataGrid1.Items)
^t.W|teD {
%n$^-Vc& if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
{gF0Xm% {
<dR,' string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
0`hwmDiB" Del (strloginid); //删除函数
_uH9XGm }
G"s0GpvQ }
7|YrdK< /"AvOh* 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)
K!{5[G WnxEu3U 在Application_Start中添加以下代码:
'8Wv.X0` Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
_."E%|5 AppSettings["ConnStr"].ToString();
,TC~~EWq y>o>WN<q 31. 变量.ToString()
$%qg" E{^^^"z P 字符型转换 转为字符串
kl7A^0Qrz 12345.ToString("n"); //生成 12,345.00
a%,fXp> 12345.ToString("C"); //生成 ¥12,345.00
T{MC-j _T9 12345.ToString("e"); //生成 1.234500e+004
/lD?VE 12345.ToString("f4"); //生成 12345.0000
M]_E 12345.ToString("x"); //生成 3039 (16进制)
:iCM=k 12345.ToString("p"); //生成 1,234,500.00%
XF,<i1ZlM x!{ 32、变量.Substring(参数1,参数2);
R9dP ,<2 CMVS W6 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
\ElX~$fS ai ftlY 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)
D[Iqn <SCRIPT language="javascript">
B4W\
t{ <!--
ijZ>:B2: function gook(pws)
2_pz3<,\ {
xfHyC'? frm.submit();
%xg"Q| }
iBbbr, //-->
M []OHw vjK, I9 </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
} p'8w\C$ <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
%?tq;~|]Q <tr>
Z;<ep@gy~ <td>
U</+ .$b <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
&hN,xpC <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
(([I]q <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
P^IY:
-s *BOBH;s <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
~mH+DV3
<INPUT id="tem" type="hidden" size="1" value="2" name="tem">
Jp]T9W\ 1D1b"o </td>
N/{?7sG& ^
}#f() </tr>
j[DIz@^ a-PGW2G </form>
h([0,:\ ]h@{6N'oNS 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
&BgU:R, ,P@QxnQ 下面是获取用户输入的登陆信息的代码:
?0J0Ij, string name;
Zoow*`b|$U name=Request.QueryString["EmailName"];
Ak=UtDN[
5-'vB try
Z=9dMND {
.cR*P<3O int a=name.IndexOf("@",0,name.Length);
60PYCqWc f_user.Value=name.Substring(0,a);
BX$hAQ(6Q f_domain.Value=name.Substring(a+1,name.Length-(a+1));
`Cj,HI_/* f_pass.Value=Request.QueryString["Psw"];
ryEvmWYu }
t<lyg0f hEOJb
@:R catch
$FCw$ +w {
^Kw(&v Script.Alert("错误的邮箱!");
/=M.-MU2 Server.Transfer("index.aspx");
v MWC(m }