1. 打开新的窗口并传送参数:
m]*Bx%-1c 6Es?
MW= 传送参数:
T32BnmB{ response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
(Qgde6 `.y}dh/+0W 接收参数:
iYnEwAoN; string a = Request.QueryString("id");
KJE[+R H+z string b = Request.QueryString("id1");
IlX$YOf4 |^28\sm2e 2.为按钮添加对话框
r%DFve:% Button1.Attributes.Add("onclick","return confirm(’确认?’)");
50dGBF button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
P;PQeXKw iR$<$P5 3.删除表格选定记录
K^r)CCO int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
E,n}HiAz7V string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
]d[ge6 KRJLxNr 4.删除表格记录警告
Wlh~) private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
B*htN {
R(j1n,c]
switch(e.Item.ItemType)
D@EO=08<b {
,Ma.V\T[ case ListItemType.Item :
Y32O-I!9u case ListItemType.AlternatingItem :
4/X/>Y1 case ListItemType.EditItem:
vd`}/~o TableCell myTableCell;
@H !$[m3 myTableCell = e.Item.Cells[14];
g<*BLF LinkButton myDeleteButton ;
)XQ`M?**M myDeleteButton = (LinkButton)myTableCell.Controls[0];
?muzU.h"z myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
B=
keBO](@ break;
M8k"je7`s default:
y]%w )4PS break;
;X ,1I }
6.t',LTB I2(zxq&2M\ }
CukC6ub sBv>E}*R 5.点击表格行链接另一页
Khh0*S8.K private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
m~Ld~I" {
vi@Lz3}:: //点击表格打开
(h']a! if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
IPuA#C e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
6)pH|d.FR }
w@2Vts lCW8<g^ 双击表格连接到另一页
~}Z\:#U ,(a5 @H$f 在itemDataBind事件中
(BX83) if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
~f|Z%&l| {
"i:T+#i({O string OrderItemID =e.item.cells[1].Text;
%hlspI(J ...
P#v*TD' e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
X &2oPo }
hP J4Oj1O ,wwZI`>- 双击表格打开新一页
> Oh?%%6 if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
*9ywXm&? {
Ba\6?K string OrderItemID =e.item.cells[1].Text;
u6:pV.p ...
=O|c-k,f@ e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
j?b\+rr }
2?@j~I=s2h p}Fs'l?7Rq ★特别注意:【?id=】 处不能为 【?id =】
wix5B@ 6.表格超连接列传递参数
VC5_v62&. <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
%tA57Pn> <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
F>]#}_ eMK+X \ 7.表格点击改变颜色
TG
n-7 88 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
ry};m_BY {
v+6@cC e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
=Nz0.: this.style.color=’buttontext’;this.style.cursor=’default’;");
!gwjN_ZJ^ }
-#-p1^v} 4!`bZ`_Bw 写在DataGrid的_ItemDataBound里
>k']T/% if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
Hy{
Q#fq {
$]aBe
!
e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
[fu!AIQs this.style.color=’buttontext’;this.style.cursor=’default’;");
3#wcKv%>&_ e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
A5#y?Aq }
v"+k~:t* OEdJc\n_R ujW1+Oj=~ 8.关于日期格式
"S~_[/q (_*
wt]"' 日期格式设定
FDR1Gy DataFormatString="{0:yyyy-MM-dd}"
]43[6Im '+<(;2Z
vL 我觉得应该在itembound事件中
F?Ju??O e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
;%J5=f%z) 89o)M5KQ 9.获取错误信息并到指定页面
t?;T3k[RM gG54: 不要使用Response.Redirect,而应该使用Server.Transfer
N132sN2 ~;-9X| e.g
K|W^l\Lt // in global.asax
SM[{BH< protected void Application_Error(Object sender, EventArgs e) {
tXF]t
if (Server.GetLastError() is HttpUnhandledException)
%;`>`j5 Server.Transfer("MyErrorPage.aspx");
p]W+eT (7lBID4 //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
l#3($QV, }
s(ROgCO >=ot8%.!,B 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
2k7bK6=nm ~7q uTp) 10.清空Cookie
HU
B|bKy Cookie.Expires=[DateTime];
(.K\Jg'Y6j Response.Cookies("UserName").Expires = 0
YHxbDf dA #nyv+x; 11.自定义异常处理
j{#Wn
!, //自定义异常处理类
'p)Q68;& using System;
=4C}{IL using System.Diagnostics;
"YFls#4H- h?@G$%2 namespace MyAppException
;mm!0]V {
&!7+Yb(1 /// <summary>
ic6L9>[ /// 从系统异常类ApplicationException继承的应用程序异常处理类。
Y5A~E#zw /// 自动将异常内容记录到Windows NT/2000的应用程序日志
h~HB0^| /// </summary>
OVoO6F] public class AppException:System.ApplicationException
L^9HH)Jc {
k/Mp6<?C: public AppException()
~M?|Vn {
O^{1RV3:,T if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
t7#lsd`_ }
.I?@o8'x #/J
'P[z public AppException(string message)
upn8n vy4( {
{sN"(H4$ LogEvent(message);
lpQP"%q }
TZ^LA
L'8_ a,'Cyv"> public AppException(string message,Exception innerException)
<2Y0{
8) {
)&NAs LogEvent(message);
t\U$8l_; if (innerException != null)
:x>T}C<Y {
#Olg(:\ LogEvent(innerException.Message);
<SXZx9A! }
?z` MPdO }
2@@l {Y0f6 4yV].2#rl" //日志记录类
\,W.0#D8v4 using System;
C;1PsSE+A using System.Configuration;
Q/_#k/R using System.Diagnostics;
4~?2wvz G4 using System.IO;
.{dE}2^ using System.Text;
gzfb zt}? using System.Threading;
H9"= p oC dGQ7G} namespace MyEventLog
T@+ClZi {
OS7RQw1 /// <summary>
10N,?a /// 事件日志记录类,提供事件日志记录支持
u?Hb(xZtg= /// <remarks>
nW;kcS*A /// 定义了4个日志记录方法 (error, warning, info, trace)
a#(U2OP /// </remarks>
=TcOn Qj /// </summary>
D(Ix!G/ public class ApplicationLog
!c8L[/L {
/J%do]PDl /// <summary>
T`L}[?w /// 将错误信息记录到Win2000/NT事件日志中
4_Rdp`x#J /// <param name="message">需要记录的文本信息</param>
n`5WXpz4; /// </summary>
4KIWb~0Y public static void WriteError(String message)
ySX/=T:<; {
XSD%t8<LO WriteLog(TraceLevel.Error, message);
IvU{Xm"qB }
N)OCSeh #qL9{P<} /// <summary>
[STje8+V /// 将警告信息记录到Win2000/NT事件日志中
1t~({Pl<> /// <param name="message">需要记录的文本信息</param>
=3+L#P=i9 /// </summary>
l:e9y $_) public static void WriteWarning(String message)
q(9%^cV6 {
VyZV(k WriteLog(TraceLevel.Warning, message);
tP'GNsq+m }
XI}I.M mY2:m(9"5 /// <summary>
Du_$C[ /// 将提示信息记录到Win2000/NT事件日志中
v4<j /// <param name="message">需要记录的文本信息</param>
d.}}s$Q /// </summary>
jn=ug42d public static void WriteInfo(String message)
jPwef##~7 {
Z.jCera. WriteLog(TraceLevel.Info, message);
3ut_Bt\ }
gA
+:CgQ /// <summary>
?MZ:_'2p /// 将跟踪信息记录到Win2000/NT事件日志中
"\T"VS^pd /// <param name="message">需要记录的文本信息</param>
"@t-Cy:!O /// </summary>
26nBBS,; public static void WriteTrace(String message)
y_%&]/% {
I)[B9rbe WriteLog(TraceLevel.Verbose, message);
!A-;NGxE }
|HgfV@Han oS!/|#mn /// <summary>
9eSRCLhgD /// 格式化记录到事件日志的文本信息格式
mTd<2Hy /// <param name="ex">需要格式化的异常对象</param>
#eEvF /// <param name="catchInfo">异常信息标题字符串.</param>
g~R/3cm4 /// <retvalue>
[t}):}~F| /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
2]Fu
1 /// </retvalue>
GVp /// </summary>
hmzair3X public static String FormatException(Exception ex, String catchInfo)
q!*MH/R {
c,BAa*]K StringBuilder strBuilder = new StringBuilder();
'5WN,Vy8. if (catchInfo != String.Empty)
i+U51t< {
z\$;' strBuilder.Append(catchInfo).Append("\r\n");
|0w~P
s }
mVrK z strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
cju@W] ! return strBuilder.ToString();
32KR--mn% }
PJwEA .HD ebi /// <summary>
a(Sv,@/ /// 实际事件日志写入方法
d<Dn9,G /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
2mOfsn d@ /// <param name="messageText">要记录的文本.</param>
yA0Y
14\* /// </summary>
V<W02\Hs private static void WriteLog(TraceLevel level, String messageText)
[J:zE&aj {
ahoh9iJ try
cUVTRWV {
}wG|%Y#+r EventLogEntryType LogEntryType;
"S|(4BUJ( switch (level)
~FNPD'`t {
]TfeBX6ST case TraceLevel.Error:
;>/ipnx LogEntryType = EventLogEntryType.Error;
/MqP[*L break;
6NSO >/E case TraceLevel.Warning:
r'PE5xqF LogEntryType = EventLogEntryType.Warning;
SNxz*`@4 break;
:7k`R62{ case TraceLevel.Info:
1J+3a-0 LogEntryType = EventLogEntryType.Information;
:%>oe> _" break;
yI *M[0 case TraceLevel.Verbose:
q|/!0MU" LogEntryType = EventLogEntryType.SuccessAudit;
!r2}59J break;
gpsrw>nw default:
B~4mk LogEntryType = EventLogEntryType.SuccessAudit;
B,:23[v break;
-MUQ\pZ }
Ol_/uy1r[
Tu'E{Hw EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
"1CGO@AXS //写入事件日志
`^`9{@~ eventLog.WriteEntry(messageText, LogEntryType);
2}>go^#O/w 8}J(c=4Gk }
.8%vd catch {} //忽略任何异常
d^_itC;-, }
f0g6g!&gf } //class ApplicationLog
@Z,qu2~|! }
(OQi%/Oy V 3%Krn1' 12.Panel 横向滚动,纵向自动扩展
kU>#1He <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
@ikUM+A { yh4jRe?f 13.回车转换成Tab
W|~q<},j <script language="javascript" for="document" event="onkeydown">
Z!k5"\{0pE if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
"&|lO| event.keyCode=9;
*SXSF95 </script>
]&/0 CARq^xI- onkeydown="if(event.keyCode==13) event.keyCode=9"
bQ
i<0|S 3l.Nz@a* 14.DataGrid超级连接列
#Xj;f^}/ DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
/S/tE /;[}=JL<Q 15.DataGrid行随鼠标变色
-.^= Z!=M private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
ho(5r5SNE {
% d4+Ctrp- if (e.Item.ItemType!=ListItemType.Header)
'=-s1c@^ {
b ^+Fs e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
7BVXBw e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
CuF%[9[cT }
#R5we3&p }
ttTI#Fr2 `\nON 16.模板列
6zELe.tq <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
b"`ru~] <ITEMTEMPLATE>
{_?T:` <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
qAnA=/k` </ITEMTEMPLATE>
7j4ej|Fjo </ASP:TEMPLATECOLUMN>
jM{(8aUG ^n6)YX <ASP:TEMPLATECOLUMN headertext="选中">
d%S=$}o <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
U#OWUZ <ITEMTEMPLATE>
,s\x]bh <ASP:CHECKBOX id="chkExport" runat="server" />
Qo]vpp^[# </ITEMTEMPLATE>
^mS.HT=X <EDITITEMTEMPLATE>
z+y;y&P <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
^cfkP(Y3kx </EDITITEMTEMPLATE>
z(c@(UD-_ </ASP:TEMPLATECOLUMN>
o",f(v&u% N`y}Gs 后台代码
"u .)X3 protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
8Pl+yiB/o` {
w++B-_ //改变列的选定,实现全选或全不选。
pjaiAe!k CheckBox chkExport ;
Tz+HIUIxF if( CheckAll.Checked)
$,xtif0 {
]J8KCjq@ foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
Dlqn~ {
} IIK~d, chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
,eZ;8W{G chkExport.Checked = true;
m~Kch~~] }
hr)+Pk }
BG(R=,
7 else
H9oXZSm {
#i}# jMT foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
&/J.0d-*`` {
34/]m/2NZK chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
lBizC5t!o chkExport.Checked = false;
(= S"Kvb~# }
^KaqvG$ed }
z v L>(R }
P5yJO97 Bt|9%o06l 17.数字格式化
4GMa5]Ft RT8_@8 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
c,3'wnui <%#Container.DataItem("price","{0:¥#,##0.00}")%>
0})7of xI.Orpw int i=123456;
4?P%M"\Iv string s=i.ToString("###,###.00");
Fi?U)T+%+ i?1js ! 8 18.日期格式化
qK9L+i j`[yoAH 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
kR`6s D:ql^{~ 显示为: 2004-8-11 19:44:28
Fy4< c<JM1 我只想要:2004-8-11 】
KZp,=[t <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
XwKZv0ub kuKnJWv 应该如何改?
5WtQwN~ (R;)
9I\ 【格式化日期】
{UV<=R,E Li c{'w& 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
<Y}"D Yt ?34EJ
! 【日期的验证表达式】
vy2*BTU? =,/A\F A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
!%Z)eO~Z ^((\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})))?$
P ],) V8KTNt% B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
'0])7jq ^\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]))$
Q5`+eQ?_\ Y1yvI 【大小写转换】
o1p$9PL\: HttpUtility.HtmlEncode(string);
TNX%_Q< HttpUtility.HtmlDecode(string)
u@:=qd=\ {LMS~nx 19.如何设定全局变量
4acP*LkkQ 9 "
}^SI8 Global.asax中
Z,N7nMJf [i<$ZP Application_Start()事件中
8a":[Q[ f2R+5`$ 添加Application[属性名] = xxx;
laD.or #LrCx"_& 就是你的全局变量
%(dV|,|v n}ZBU5_ 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
;*j6d3E A^= Hu,"e HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
U:pLnNp` fRv
S@ 【ASPNETMENU】点击菜单项弹出新窗口
:)
Fp
B" YQB]t=Ha 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
QJ(e*/ <?xml version="1.0" encoding="GB2312"?>
Us@ {w`T <MenuData ImagesBaseURL="images/">
[X$|dOm'N <MenuGroup>
1=/MT#d^?
<MenuItem Label="内参信息" URL="Infomation.aspx" >
5w,YBUp <MenuGroup ID="BBC">
w7`@=kVx <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
p)[BB6E <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
"$,}|T?Y` ......
:(S/$^ U RB$ 8^# 最好将你的aspnetmenu升级到1.2版
2os6c te "PDSqYA 21.读取DataGrid控件TextBox值
+n8I(l= foreach(DataGrid dgi in yourDataGrid.Items)
9rf|r
3 {
)@lo ';\ TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
$S)e"Po~5 tb.Text....
8^ ~ZNU-~v }
kw-Kx4 ) 33v%e 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?
F|n$0vQ* 9bzYADLI 〖思归〗
YiI:uG!|D <asp:TemplateColumn HeaderText="数量">
D\_*,Fc <ItemTemplate>
;2xXX,'R7 <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
,mE]?XyO onkeyup="javascript:DoCal()"
G(Idiw#WT />
K9z_=c+ r/s&ee <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
*C:q _/ </ItemTemplate>
6!Tf'#TV~! </asp:TemplateColumn>
Lct+cKKU }v(H
E%~} <asp:TemplateColumn HeaderText="单价">
\.{pZMM <ItemTemplate>
?+} E <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
9>$%F;JP44 onkeyup="javascript:DoCal()"
ezq
q@t9 />
ETH#IM8J xUYN\Pc- <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
0or6_y6 h?pGw1Q </ItemTemplate>
2sd=G'7! </asp:TemplateColumn>
b09#+CH? RAx]Sp
Q-S <asp:TemplateColumn HeaderText="金额">
r^o}Y <ItemTemplate>
6Nd_YX <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
UgP=k){ </ItemTemplate>
I`n1M+=% </asp:TemplateColumn><script language="javascript">
+IOKE\,Y function DoCal()
]zM90$6 {
-"JE-n var e = event.srcElement;
)V+Dqh,-g var row = e.parentNode.parentNode;
"*>QxA%c4 var txts = row.all.tags("INPUT");
GF.g'wYc)Y if (!txts.length || txts.length < 3)
;xkf?| return;
YWBP'Mo fY+ .#V var q = txts[txts.length-3].value;
px(1Ppb9 var p = txts[txts.length-2].value;
|#khwH )mo|.L0 if (isNaN(q) || isNaN(p))
MgK(gL/&[ return;
[#@p{[ ?r a~N)qYL: q = parseInt(q);
}"; hz*a p = parseFloat(p);
#.G>SeTn2} Y @ ,e txts[txts.length-1].value = (q * p).toFixed(2);
c,s<q j }
:-'ri Ry </script>
[r<
Y0|l,m V{aIhH>P }y=n#%|i. k3|9U'r!c /7HIL?r 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
fO}1(%}d page_load
W,oV$ s^ page.smartNavigation=true
+iDz+3v( +VI0 oo {Z 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 ?
wYxFjXm private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
>8HRnCyp/ {
+w}%gps for(int i=0;i<e.Item.Cells.Count-1;i++)
P9HPr2 if(e.Item.ItemType==ListItemType.EditType)
* jNu?$ {
P*^UU\x'4I e.Item.Cells.Attributes.Add("Width", "80px")
GMp'KEQQ }
AxqTPx7`| }
"@<g'T0 /)<7$ 26.对话框
0BwQ!B. private static string ScriptBegin = "<script language=\"JavaScript\">";
9lwo/(s private static string ScriptEnd = "</script>";
6nk|*HPz JC?V].) y5 public static void ConfirmMessageBox(string PageTarget,string Content)
i~PZvxt {
g8@i_ string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
[zt&8g D
`3yv
R ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
R8Ei:f} ;og<eK Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
n#AH@`&i ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
/ z>8XM& //Response.Write(strScript);
rO>wX_ }
(YH{%8
Z0 #2t\>7] 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
R$'nWzX# sBG(CpQ 1.1 取当前年月日时分秒
gYIYA"xN` currentTime=System.DateTime.Now;
oM7-1O f2K3*}P 1.2 取当前年
kR|DzB7 int 年= DateTime.Now.Year;
2F)OyE .\\#~r`t 3 1.3 取当前月
/|^^v DL int 月= DateTime.Now.Month;
Jx[e{o)o )uJ`E8>- 1.4 取当前日
WQ`P^5e int 日= DateTime.Now.Day;
20xGj?M x-k/rZ 1.5 取当前时
<5L` d} int 时= DateTime.Now.Hour;
@)B5^[4(; ^rb7`s#G 1.6 取当前分
0
#;
s{7k int 分= DateTime.Now.Minute;
d~s-;T \evgDZf 1.7 取当前秒
;Cpm3at int 秒= DateTime.Now.Second;
<^$b1<@ GdwHm 1.8 取当前毫秒
=7Gi4X% int 毫秒= DateTime.Now.Millisecond;
\FX3=WW xg!\C@$ 28.自定义分页代码:
VH*(>^OfF Wl"fh_ 先定义变量 :
ag4^y& public static int pageCount; //总页面数
6m<9^NT public static int curPageIndex=1; //当前页面
zT 40,rk \}(-9dr 下一页:
)u:8Pv if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
F#9KMu<<cI {
l@9:VhU( DataGrid1.CurrentPageIndex += 1;
_E-GHj>k
z curPageIndex+=1;
SQCuY<mD }
E0'6 !9y ::t!W7W bind(); // DataGrid1数据绑定函数
bJ[1'Es` #!<s& f|O 上一页:
TV2:5@33 if(DataGrid1.CurrentPageIndex >0)
a.ME{:a% {
nsn,8a38 DataGrid1.CurrentPageIndex += 1;
g)Uh
curPageIndex-=1;
hRiGW_t }
qt)mUq;> XX;%:?n bind(); // DataGrid1数据绑定函数
m=y)i]=1 ?|F;x" 直接页面跳转:
3Q6#m3AWY int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
_dY}86{ 'Pn`V{a if(a<DataGrid1.PageCount)
+1A<kJ {
.h }D%Qa this.DataGrid1.CurrentPageIndex=a;
ZuON@ ( }
QpZhxp P,], N) bind();
D{}\7qe eS+LFS7*k 29.DataGrid使用:
=swcmab; ;]e"bX 添加删除确认:
V)@scB|>, private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
N($]))~3& {
=sJHnWL[ foreach(DataGridItem di in this.DataGrid1.Items)
[C#pMLp,~ {
*]k"H`JoFC if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
n*|-"'j {
Fs~-exY1 ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
"R]K!GUU }
`hhG^O_ }
2Ki/K( }
L~zet-3UNf 6ns_4,
e 样式交替:
a&PZ7!PZv ListItemType itemType = e.Item.ItemType;
:H7 "W< "d\8OOU if (itemType == ListItemType.Item )
(/BkwbJyE {
CbQ%[x9| e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
@5ybBh] e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
<>GyG-q }
p5hP}Z4r else if( itemType == ListItemType.AlternatingItem)
60$
{
y2>]gX5 e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
>TJ$Z3 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
vUNE!j }
pu#<qD*w 2HNS|GHb& 添加一个编号列:
Lr &tpB< DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
]y$C6iUY* DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
-"H9 W: *l}
0x@ for(int i=0;i<dt.Rows.Count;i++)
E{B<}n|}& {
Cm>F5$l{ dt.Rows["number"]=(i+1).ToString();
"+60B0>sc }
hkxZ=l 7]Yd-vA DataGrid1.DataSource=dt;
t$2{U DataGrid1.DataBind();
R&p5 3n XDQ1gg` DataGrid1中添加一个CheckBox,页面中添加一个全选框
YKk%;U* private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
_XtY/7n {
$P~ a foreach(DataGridItem thisitem in DataGrid1.Items)
NI)nf;C {
%mJ)pMV ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
T@XiG:b7 }
D%btlw?{ }
o%iTYR:x !{LwX Kf 将当前页面中DataGrid1显示的数据全部删除
PGDlSB^O foreach(DataGridItem thisitem in DataGrid1.Items)
R&A.F+Zgt {
b/`'?|
C if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
3@JwL{C {
3WHH3co[ string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
w4mL/j Del (strloginid); //删除函数
|d8o<Q }
vC1 `m }
d+;~x* `x3c},'@k 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
&~EOM :Vc9||k 在Application_Start中添加以下代码:
i\b2P2
`B Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
a6C~!{'nW AppSettings["ConnStr"].ToString();
gB#t"s) :KwYuwYS 31. 变量.ToString()
i|e-N?l Yy]Henw; 字符型转换 转为字符串
t!LvV.g+ 12345.ToString("n"); //生成 12,345.00
2vLn# 12345.ToString("C"); //生成 ¥12,345.00
:>z0m0nI\ 12345.ToString("e"); //生成 1.234500e+004
c2QC`h(Wb 12345.ToString("f4"); //生成 12345.0000
C;|Ru* 12345.ToString("x"); //生成 3039 (16进制)
2Qy&V/E ? 12345.ToString("p"); //生成 1,234,500.00%
BN0))p |{(ynZ]R 32、变量.Substring(参数1,参数2);
z\, w$Ef+ QQJcvaQ 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);
FrS>.!OFn S_zE+f+
2 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)
1?;s!6= <SCRIPT language="javascript">
IZGty=Q_ <!--
@NZ?D0" function gook(pws)
U.\kAEJ {
VlH9ap frm.submit();
,h"M{W$ }
Q6E80> //-->
4U3T..wA d?JVB </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
1x]G/I* <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
{.AFg/Z <tr>
6aL`^^ <td>
dJk.J9Z <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
hk(^?Fp <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
:Fh*4
&Z <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
LF8B5<[O H)Yv_gT <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
AyWCb
<INPUT id="tem" type="hidden" size="1" value="2" name="tem">
g_`8K,6ln #*fB~Os: </td>
iPao54Z YB[P`Muj </tr>
LS;kq', Xv9CD </form>
};|'8'5 *ZHk^d: 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。
V'8
(}(s/ %H54^Z<y 下面是获取用户输入的登陆信息的代码:
<5
okwcJ^ string name;
O1QHG'00 name=Request.QueryString["EmailName"];
iIg_S13 Z"A:^jZ<s try
{"s8X(#_sC {
1cPi>?R: int a=name.IndexOf("@",0,name.Length);
Z|u_DaSrr| f_user.Value=name.Substring(0,a);
|e!Sm{#! f_domain.Value=name.Substring(a+1,name.Length-(a+1));
r(RJ&