1. 打开新的窗口并传送参数:
>cM}M =4s ~n)<L7 传送参数:
pJ;4rrSK response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
^s[OvJb .GH#`j 接收参数:
R<FW?z* string a = Request.QueryString("id");
+Oa+G.;)o4 string b = Request.QueryString("id1");
NP< {WL# l7M![Ur 2.为按钮添加对话框
[Adkj Button1.Attributes.Add("onclick","return confirm(’确认?’)");
QH.zsqf( button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
T3#KuiwU9 "{Jq6):mp 3.删除表格选定记录
ZXL int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
pR*)\@ma string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
"? t@Y <oP"kh<D4 4.删除表格记录警告
"2a&G3}t" private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
AKkr
)VgY {
|ZBHXv switch(e.Item.ItemType)
Rd^X. {
-|aNHZr case ListItemType.Item :
sUEvL(%nY case ListItemType.AlternatingItem :
6y
d/3k case ListItemType.EditItem:
0b~{l; TableCell myTableCell;
NP?hoqeKs myTableCell = e.Item.Cells[14];
@/yJTMcf LinkButton myDeleteButton ;
Zwxu3R_ myDeleteButton = (LinkButton)myTableCell.Controls[0];
q;0QI{:5v myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
;*=MI/"N break;
"Nlw&+
c7 default:
ZB@Bj>,bp break;
>ho$mvT
}
yYri.n NiPa-yRh }
z=/xv}, '<eeCe- 5.点击表格行链接另一页
$Z!7@_Ys private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
L4?)N&V {
C^W9=OH //点击表格打开
lX*IEAc if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
,OilGTQ# e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
~!A*@aC }
E`aAPk_y M);@XcS 双击表格连接到另一页
U6M3,"? ~+r"%KnG 在itemDataBind事件中
zJ7=r#b if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
k,UezuV {
'4J];Nj0 string OrderItemID =e.item.cells[1].Text;
X
\GB:#:X ...
pz]T9ol~ e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
+#IsRiH%> }
:2_8.+: yw3E$~ k 双击表格打开新一页
}jWZqIqj if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
S85}&\m&4 {
Ebk_(Py\ string OrderItemID =e.item.cells[1].Text;
5l
ioL) ...
P.Uz[_&l6 e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
gk.c"$2 }
\ Rff3$ 0>KW94 ★特别注意:【?id=】 处不能为 【?id =】
asQXl#4r 6.表格超连接列传递参数
WP b4L9< <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
; M%n=+[O <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
tF@hH}{; 6x$1En 7.表格点击改变颜色
}q~M$ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
=|_{J"sv {
*#n?6KqZ e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
4gRt^T-? this.style.color=’buttontext’;this.style.cursor=’default’;");
RO10$1IW.2 }
u_~*)w+mS@ ("
,(@nS 写在DataGrid的_ItemDataBound里
Oi~]~+2 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
@C34^\aH+ {
^A"TY e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
ci~pM<+
this.style.color=’buttontext’;this.style.cursor=’default’;");
00d<V:Aoy e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
DL:wiQ }
B- `,h pp q\f Z Q 0s#`H 8.关于日期格式
P$=BmBq18` ?%Pd:~4D 日期格式设定
lNw8eT~2 DataFormatString="{0:yyyy-MM-dd}"
Hi{1C"% (E.,kcAJ 我觉得应该在itembound事件中
^3B&E^R e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
<E`Ygac ,( ?q 9.获取错误信息并到指定页面
I2R"
Y< G?t<4MTv 不要使用Response.Redirect,而应该使用Server.Transfer
yK #9)W- jhN]1t/\X e.g
:@H&v%h(u // in global.asax
",hPy[k protected void Application_Error(Object sender, EventArgs e) {
5[py{Gq if (Server.GetLastError() is HttpUnhandledException)
Qq. ht Server.Transfer("MyErrorPage.aspx");
xpb,Nzwt^ NLz[F`I //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
E>}(r%B }
+oT/ v3, PqOPRf 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
4%(\y"T [A.ix}3mm 10.清空Cookie
scsN2#D7U/ Cookie.Expires=[DateTime];
I!L`W
_ Response.Cookies("UserName").Expires = 0
l; ._
?H T|{1,wP 11.自定义异常处理
A=z+@b6 //自定义异常处理类
TfbB1 using System;
("7rjQjRz using System.Diagnostics;
P&s-U6 yi*2^??`
1 namespace MyAppException
el;ey Ga {
#Pf?.NrTn /// <summary>
"GTlJqhk /// 从系统异常类ApplicationException继承的应用程序异常处理类。
_8f?
H#& /// 自动将异常内容记录到Windows NT/2000的应用程序日志
'fqX^v5n /// </summary>
*x;&fyR public class AppException:System.ApplicationException
+@ FM~q {
]hPu public AppException()
IgsK7wn {
^bZ'z if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
%)|pUa& }
ey~5DY7 Lcx)wof public AppException(string message)
j<HBzqP%6 {
Bv)^GU& LogEvent(message);
)5479Eb_ }
E,/<; tLz,t&h public AppException(string message,Exception innerException)
i Sm
.E {
X &z|im'd LogEvent(message);
@]r l2Qqe if (innerException != null)
nF Mc'm {
d=q&%gqN LogEvent(innerException.Message);
M_+"RKp }
{c;][>l }
r?w^#V N'8u}WO //日志记录类
Y M<8>d using System;
vH^6O:V using System.Configuration;
'K L"i using System.Diagnostics;
O)$rC using System.IO;
N}j]S{j}' using System.Text;
-8r';zR using System.Threading;
&7i o/d\/ s?:&# namespace MyEventLog
1^x"P #u {
EU@
BNja /// <summary>
e#+u8 LrN /// 事件日志记录类,提供事件日志记录支持
'\MYC8" /// <remarks>
sUCI+)cM3 /// 定义了4个日志记录方法 (error, warning, info, trace)
>;$C@ /// </remarks>
cILI%W1 /// </summary>
A*$JF>`7 public class ApplicationLog
Mj
guH5Uy {
JBYmy_Su /// <summary>
%z0;77[1 I /// 将错误信息记录到Win2000/NT事件日志中
2~*J<iO&l /// <param name="message">需要记录的文本信息</param>
xksd&X: /// </summary>
qPn}$1+~ public static void WriteError(String message)
1kd\Fq^z$ {
]WsQ= WriteLog(TraceLevel.Error, message);
]~Su }
Aa.eu=@I d'oh-dj %^ /// <summary>
p-6Y5$Y /// 将警告信息记录到Win2000/NT事件日志中
\-]zXKl2k /// <param name="message">需要记录的文本信息</param>
?=bqya"Y /// </summary>
va>u1S<lO public static void WriteWarning(String message)
6/%dD DU {
[eWZ^Eh"I WriteLog(TraceLevel.Warning, message);
Q|DVB }
e={X{5z0 <Va7XX%> /// <summary>
,[}
XK9 /// 将提示信息记录到Win2000/NT事件日志中
,R-T( <r /// <param name="message">需要记录的文本信息</param>
0gLl>tF[H /// </summary>
_i/x4,=xv public static void WriteInfo(String message)
_uYidtxo= {
\4/zvlo]h WriteLog(TraceLevel.Info, message);
OH(w3:;[8 }
prWK U /// <summary>
Q.]$t
2J /// 将跟踪信息记录到Win2000/NT事件日志中
s9Tp(Yr,k /// <param name="message">需要记录的文本信息</param>
'^npZa'%sW /// </summary>
U9*uXD1\ public static void WriteTrace(String message)
.~nk'm {
_5t~g_(1OK WriteLog(TraceLevel.Verbose, message);
+;T `uOF} }
&}:]uC !R 2;]d* /// <summary>
KWq&<X5 /// 格式化记录到事件日志的文本信息格式
@PaOQ@ /// <param name="ex">需要格式化的异常对象</param>
T4M"s;::1 /// <param name="catchInfo">异常信息标题字符串.</param>
,w9:)B7 /// <retvalue>
j$<sq /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
Z7="on4 /// </retvalue>
B2R^oL'} /// </summary>
uIvAmc4 public static String FormatException(Exception ex, String catchInfo)
1(q&(p {
Z8Jrt3l{2 StringBuilder strBuilder = new StringBuilder();
>!U oS if (catchInfo != String.Empty)
`GBa3 {
'4"9f]: strBuilder.Append(catchInfo).Append("\r\n");
`X:o]t@ }
} xy>uT strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
? ZqvR^ return strBuilder.ToString();
P[G.LO }
(uxe<'Co| $ouw*|< /// <summary>
|=o)|z2 /// 实际事件日志写入方法
L&I8lG /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
I*SrKZb /// <param name="messageText">要记录的文本.</param>
Un~8N /// </summary>
$ #*";b)QY private static void WriteLog(TraceLevel level, String messageText)
C8xx R~mq {
j&
H4L try
v!>(1ROQ.= {
or8`.hEHI EventLogEntryType LogEntryType;
*%nV<}e^_= switch (level)
xpO'.xEs {
TEzMFu+V case TraceLevel.Error:
+ n)_\@aQ LogEntryType = EventLogEntryType.Error;
ZNKopA(=|% break;
$$5E+UDOs case TraceLevel.Warning:
Hdn%r<+c LogEntryType = EventLogEntryType.Warning;
ev{;}2~V break;
k(]R;`f$W case TraceLevel.Info:
n&n WY+GEo LogEntryType = EventLogEntryType.Information;
j6JK4{ break;
'#oNOU case TraceLevel.Verbose:
Rs +), LogEntryType = EventLogEntryType.SuccessAudit;
F%]ZyO9 break;
<TDp8t9bU default:
-5 Q
gJ LogEntryType = EventLogEntryType.SuccessAudit;
<\fB+ AZ break;
,\Q^[e!m~ }
oOAn 5t@ C3]"y7 EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
YAc~,N //写入事件日志
dPm_jX eventLog.WriteEntry(messageText, LogEntryType);
DH>>u t|5T,YFG }
WXj
iKW( catch {} //忽略任何异常
\{@n>Mh }
Gkr]8J } //class ApplicationLog
V?zCON }
T[L7-5U0 I&Z4?K 12.Panel 横向滚动,纵向自动扩展
Rt9S <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
-Gyj]v5y`c Cd7imj 13.回车转换成Tab
YjR`}rdwo <script language="javascript" for="document" event="onkeydown">
Sc/\g if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
D^30R*gV event.keyCode=9;
O u-/dE% </script>
yU{Q`6u T Jqp;8DV} onkeydown="if(event.keyCode==13) event.keyCode=9"
v]?zG&Jh "G[yV>pxv 14.DataGrid超级连接列
%`# HGji) DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
]Uu :t J6C/`)+w 15.DataGrid行随鼠标变色
_no;B_m~ private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
1zP)~p3a {
Gpb<,v_3 if (e.Item.ItemType!=ListItemType.Header)
g.wDg {
Ifu[L&U e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
L>>RboR} e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
Tp[-,3L }
z#|tcHVFT }
G &QG Q /7CV7=^d, 16.模板列
EW~M,+? <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
c]+uj q <ITEMTEMPLATE>
Sp]u5\ <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
E |K|AdL </ITEMTEMPLATE>
A0l-H/l7 </ASP:TEMPLATECOLUMN>
a`*Dq"9pV Aw)I:d7F <ASP:TEMPLATECOLUMN headertext="选中">
?heg_~P <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
!XqU'xxC <ITEMTEMPLATE>
b uu /Nz$ <ASP:CHECKBOX id="chkExport" runat="server" />
,vh$G 7D </ITEMTEMPLATE>
N87)rhXSo, <EDITITEMTEMPLATE>
_wp_y-" <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
EZee
kxs </EDITITEMTEMPLATE>
WZQ
EBXs </ASP:TEMPLATECOLUMN>
6g-Q >At* jg48 后台代码
@d1YN]ede protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
3Jh!YzI8 {
>|1$Pv? //改变列的选定,实现全选或全不选。
r?$V;Z CheckBox chkExport ;
Q nTKo&|9 if( CheckAll.Checked)
4Nl3"@<$ {
"sU jJ| foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
*Tum(wWZ {
Iy#=Nq= chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
5XzN%<_h9 chkExport.Checked = true;
dI?x(vw }
=3dR-3 }
*w`_(Xf else
s|[CvjL#0 {
w\zNn4B})A foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
*w
OU=1+ {
I
R|[&} z chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
HPc~wX chkExport.Checked = false;
yBl9 a-2A }
[e f&|Pi- }
^iqy|zNtn }
|*%i]@V= + usB$=kJ 17.数字格式化
gA:unsI )&s9QBo{b 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
I&wJK'GM` <%#Container.DataItem("price","{0:¥#,##0.00}")%>
2)MX<prH ?D_^ 8\R int i=123456;
E;rS"'D: string s=i.ToString("###,###.00");
`V2doV) HJ+Q7) 18.日期格式化
Ly q[gQjr vI20G89E 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
v];P| Fi j@s* hZ^J+ 显示为: 2004-8-11 19:44:28
9U4 D$M FI"KJk' 我只想要:2004-8-11 】
M3VTzwuf^S <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
`>Ms7G9S~e -xVZm8y 应该如何改?
tNG[|Bi# BIXbdo5F 【格式化日期】
O<P(UT" VVw5)O1' 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
Y3JIDT^ :!/ (N 【日期的验证表达式】
U8a5rF>< qs>&Xn A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
GDQQ4-|O ^((\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/_2Q. Ei4Iv#Oi` B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
( _3QZ ^\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]))$
UB,0c) gE9x+g 【大小写转换】
m(w 9s;< HttpUtility.HtmlEncode(string);
+Kp8X53 HttpUtility.HtmlDecode(string)
()W`4p j;J`PH 19.如何设定全局变量
6F_:,b^ Jb6)U] Global.asax中
wv 1 T}jK^" Application_Start()事件中
N$.=1Q$F6 _H"_&m$aDm 添加Application[属性名] = xxx;
! n<SpW; TF?~vS%@P 就是你的全局变量
"0Z5cQjg zm mkmTp 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
}ag;yf; Gc_KS'K@$ HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
uN=f(-" VA@ 【ASPNETMENU】点击菜单项弹出新窗口
aUi^7;R&< k'NP+N<M 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
`$MO;Fv,G <?xml version="1.0" encoding="GB2312"?>
uT>"(wnJ| <MenuData ImagesBaseURL="images/">
jN!VrRA <MenuGroup>
Md&K#)9,( <MenuItem Label="内参信息" URL="Infomation.aspx" >
Dxe]LES\] <MenuGroup ID="BBC">
|$Cfm} <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
1}~ZsrF <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
oDWNOw ......
3X#Cep20a >FS}{O2c 最好将你的aspnetmenu升级到1.2版
Rh%A^j@ L]q%;u]8! 21.读取DataGrid控件TextBox值
u%5 ,U- foreach(DataGrid dgi in yourDataGrid.Items)
hh[x(O)TC~ {
`{NbMc\
] TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
B r6tgoA tb.Text....
<tW/9}@p9 }
sB!6"D5 :<v@xOzxx 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
YIF|8b\
aTkMg 〖思归〗
CIVV"p`} <asp:TemplateColumn HeaderText="数量">
oA8A
@,-L <ItemTemplate>
h!`KX2~ <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
<Y"HCa{ onkeyup="javascript:DoCal()"
)<$<9!L4x />
l{Et:W%| MkWbPm) <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
r::0\{{r"p </ItemTemplate>
f?TS#jG4} </asp:TemplateColumn>
xwj{4fzpk{ s^k<r;'\ <asp:TemplateColumn HeaderText="单价">
fNV-_^,R9 <ItemTemplate>
U?ZWDr"*`w <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
vGOO"r(xL onkeyup="javascript:DoCal()"
4?]s%2U6 />
iu$Y0.H@ \(}pm#O <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
^O}J',Fm%f TPLv]$n </ItemTemplate>
e'p"gX </asp:TemplateColumn>
Ya-GDB;L k"6v& O <asp:TemplateColumn HeaderText="金额">
03_M+lv <ItemTemplate>
:(4q\~ <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
|v<4=/. </ItemTemplate>
>U(E
\`9D </asp:TemplateColumn><script language="javascript">
_:FD#5BZ1 function DoCal()
u>:j$@56 {
7`e<H 8g var e = event.srcElement;
.HRd6O; var row = e.parentNode.parentNode;
etQS&YzC var txts = row.all.tags("INPUT");
%-BwK if (!txts.length || txts.length < 3)
vQj{yJ\l1 return;
k5*Z@a $M~`)UeV_ var q = txts[txts.length-3].value;
orbz`IQc var p = txts[txts.length-2].value;
Lhrlz,1 BqM[{Kv if (isNaN(q) || isNaN(p))
cQsSJBZ[v5 return;
Wys$#pJ @!|h!p; q = parseInt(q);
g4{0 p = parseFloat(p);
)@] W= D
|fo:Xp, txts[txts.length-1].value = (q * p).toFixed(2);
_ q
AT%. }
rv<qze;?| </script>
:a:m>S<~ n57mh5mixM %NfH`%` \Ym!5,^o nFe 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。
7[i&EPN page_load
h 0)oQrY page.smartNavigation=true
JvaHH!>d/ _@VKWU$$ 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 ?
Xn5LrLM& private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
#a'CoJs
{
ABL5T-*] for(int i=0;i<e.Item.Cells.Count-1;i++)
jpOcug`f if(e.Item.ItemType==ListItemType.EditType)
uKB V`I {
:c`djM^ll e.Item.Cells.Attributes.Add("Width", "80px")
2z1r|?l }
1^[]#N-Bu }
Mko,((>I1 RB;2 26.对话框
75A60Uw private static string ScriptBegin = "<script language=\"JavaScript\">";
pK'D(t private static string ScriptEnd = "</script>";
Ye^xV,U@ Q8h=2YL public static void ConfirmMessageBox(string PageTarget,string Content)
PWyFys {
+eop4 |Z string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
y+izC+ A2Iqn5 ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
g91xUG w( ic$ Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
w;J#+ik ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
yA`,ns&n //Response.Write(strScript);
:K(+ KN( }
RER93:( %WYveY 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
A-eCc#I =,&{ &m) 1.1 取当前年月日时分秒
e'=#G$S?g currentTime=System.DateTime.Now;
`qZ@eGZ
z Rn{X+b. 1.2 取当前年
B0gs<E int 年= DateTime.Now.Year;
$cLZ,N24 zP/SDW 1.3 取当前月
s8k4e6ak int 月= DateTime.Now.Month;
XHY,;4 LrV|Y~ 1.4 取当前日
"\M3||.! int 日= DateTime.Now.Day;
s5X51#J#~ En0hjXa 1.5 取当前时
ENf(E9O int 时= DateTime.Now.Hour;
[kPl7[OL h9~oS/%: 1.6 取当前分
;:bnLSPo int 分= DateTime.Now.Minute;
$us7fuKE lH"VLO2l 1.7 取当前秒
1W9uWkk_d int 秒= DateTime.Now.Second;
lvUWs -or)NE
1.8 取当前毫秒
'47E8PIJ| int 毫秒= DateTime.Now.Millisecond;
ffaMF~+ j'UWgwB 28.自定义分页代码:
7qdB }c#W"y5l_ 先定义变量 :
"2T* w~V&y public static int pageCount; //总页面数
0 Gq<APtr public static int curPageIndex=1; //当前页面
Cn>t"#zs!~ |]?7r?=J9v 下一页:
xDmwiVy if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
)=0@4 {
VxU{ZD~<Z" DataGrid1.CurrentPageIndex += 1;
,~NJ}4wP curPageIndex+=1;
.;&4'ga4 }
,@Elw>^ !ed0 bind(); // DataGrid1数据绑定函数
<_4'So> _ n4C~ 上一页:
xB}B1H% if(DataGrid1.CurrentPageIndex >0)
YH-W{]. {
X\BdN Hr DataGrid1.CurrentPageIndex += 1;
% "ZC9uq? curPageIndex-=1;
zZ8:>2Ps( }
X
u>]$+u# iF"kR]ZL bind(); // DataGrid1数据绑定函数
FXid=&T@0D mEV@~){ 直接页面跳转:
rwAycW7 int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
lK#uyag T lB+
tV> if(a<DataGrid1.PageCount)
0'R}' {
AQ,%5MeqJ this.DataGrid1.CurrentPageIndex=a;
w X.]O!^X~ }
`V?NS,@$ ")W5`9 bind();
y"ms;w'z u/5)Yx+5_ 29.DataGrid使用:
DF"*[]^[ So#>x5dL 添加删除确认:
z>spRl,dr private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
>W'"xK|: {
d*:J0J( foreach(DataGridItem di in this.DataGrid1.Items)
PB@jh} {
M+L0 X$}NZ if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
"GAKi}y">v {
Bo/i =/7% ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
8ya|eJ]/L }
NHzVA*f }
YKa9]Q }
4o( Q+6m +qyx3c+ 样式交替:
vz)zl2F5sY ListItemType itemType = e.Item.ItemType;
^i17MvT'
#LG<o3An if (itemType == ListItemType.Item )
N\x<'P4q {
P)UpUMt;k e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
l, j0n0h. e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
J8DKia|h( }
smuQ1.b else if( itemType == ListItemType.AlternatingItem)
p1,.f&(f {
z-`4DlJUS e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
8|rlP e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
7*47mJyc }
}kk[lvhJ N!13QI
H 添加一个编号列:
`W4Is~VVv DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
iM{cr&0 DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
<;NxmO<%\ :Y&h'FGZm for(int i=0;i<dt.Rows.Count;i++)
F=$U.K~1? {
.c _qMTm" dt.Rows["number"]=(i+1).ToString();
Q_|Lv& }
#vT~D>zj ]DI%7kw' DataGrid1.DataSource=dt;
;vgaFc] DataGrid1.DataBind();
\B8[UZA.& 2!}rHw DataGrid1中添加一个CheckBox,页面中添加一个全选框
.IORvP-M& private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
f_> lz {
c)17[9" foreach(DataGridItem thisitem in DataGrid1.Items)
R9%"Kxm {
N1'$;9 c ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
$eh>.c'&] }
@Y+9")? }
*g 2N&U {7 nz:f 将当前页面中DataGrid1显示的数据全部删除
R,W
w/D foreach(DataGridItem thisitem in DataGrid1.Items)
q]m$%> {
/ U"3LX if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
O)}5`0@L {
=2, iNn string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
-2y>X`1Y Del (strloginid); //删除函数
B%KfB
VC }
4NmLbM&C8 }
;d||u -@`!p 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)
f_tC:T4a AM4
:xz 在Application_Start中添加以下代码:
:Pi=" Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
I sB=G-s AppSettings["ConnStr"].ToString();
);ZxKGjc4 CrEC@5j 31. 变量.ToString()
K=;oZYNd 9AZpvQ 字符型转换 转为字符串
!o8(9F 12345.ToString("n"); //生成 12,345.00
7.C~ OrGR 12345.ToString("C"); //生成 ¥12,345.00
(/Dr=D{ ` 12345.ToString("e"); //生成 1.234500e+004
KoTQc0b! 12345.ToString("f4"); //生成 12345.0000
hSSFmEpr 12345.ToString("x"); //生成 3039 (16进制)
-Sj|Y} 12345.ToString("p"); //生成 1,234,500.00%
~.8p8\H 1Ozy;;\-9 32、变量.Substring(参数1,参数2);
+ Scw;gO R(DlJ 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);
Z=>#|pW,) [xg&`x9,. 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)
IHNl`\Le <SCRIPT language="javascript">
1WLaJ%Fv <!--
:%"$8o*0W function gook(pws)
psE&Rx3) {
!"N-To-c frm.submit();
UWq[K&vQZ
}
T&kr IZw //-->
R]Pv=fn M`.v/UQn </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
4$jb-Aw <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
"9yQDS: <tr>
hIMD2 <td>
M\dZxhQ-l <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
>^
M=/+<c <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
f hr
QJ <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
;TG<$4N yX|0R
H <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
/ FA0(< -} <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
G,h=5y9_J ^`oyf{w@ </td>
.wz.Jr`{ S(h+,+289 </tr>
63y&M