1. 打开新的窗口并传送参数:
XpK
Y# KbK!4 传送参数:
*8yC6|wL? response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
YN:Sn\`D 8 M
0RA& 接收参数:
P6ka'!z string a = Request.QueryString("id");
]~f-8!$$R string b = Request.QueryString("id1");
/l3Oi@\
?:l:fS0:{ 2.为按钮添加对话框
.'2I9P\! Button1.Attributes.Add("onclick","return confirm(’确认?’)");
;'Z"CbS+ button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
xcQ^y}JN D(dV{^} 9 3.删除表格选定记录
oY,{9H37b int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
:J2^Y4l2 string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
IDh`*F &G\C[L 4.删除表格记录警告
;b=7m#5 private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
]6|?H6'/`v {
"SWL@}8vx switch(e.Item.ItemType)
,nP nH1vb {
n-qle5s j case ListItemType.Item :
3!QXzT$E case ListItemType.AlternatingItem :
-y?ve od# case ListItemType.EditItem:
)-}<}< oO TableCell myTableCell;
+2Aggv>* myTableCell = e.Item.Cells[14];
,kYX|8SO LinkButton myDeleteButton ;
bu\(KR$s myDeleteButton = (LinkButton)myTableCell.Controls[0];
Y( EF ):: myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
'%*hs8s break;
<veypLi"R default:
HTMo.hr break;
\Ov~ t }
.N\t3\9} 7X>@r"9< }
X`eX+9 gf4Hq&Rf 5.点击表格行链接另一页
qvhG^b0h private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
Ep')@7^n {
bun_R- //点击表格打开
/6\uBy"Xt if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
?G]yU e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
#,})N*7 }
gQY`qz 3!#FG0Z 双击表格连接到另一页
9Q\B1Q _25PyG 在itemDataBind事件中
q9InO]s&~= if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
<&)zT#" {
Pmr'W\aIR string OrderItemID =e.item.cells[1].Text;
tO"AeZe%| ...
4U'sBaY!K e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
ATmyoN2@> }
&fkH\o7) B/3xV:Gy 双击表格打开新一页
]lE5^<<
if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
uOKdb6]r6 {
/!/Pk'p=/ string OrderItemID =e.item.cells[1].Text;
\lDh" ...
92b}N|u e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
JV/:QV }
;9J6)zg !n 61HJ% ★特别注意:【?id=】 处不能为 【?id =】
uLI;_,/: 6.表格超连接列传递参数
JZ-64OT <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
?"?AH/E D <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
'C:i5?zh(q Rx.5;2m 7.表格点击改变颜色
As tuM] if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
7W&XcF {
)RWukr+ e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
3qV\XC+ this.style.color=’buttontext’;this.style.cursor=’default’;");
Z*NTF:6c }
9uX15a Hf30ve} 写在DataGrid的_ItemDataBound里
uo|:n"v if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
RgM=g8}M {
~rAcT6# e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
kKC]
n this.style.color=’buttontext’;this.style.cursor=’default’;");
Sb)} e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
5pHv5e }
a/%qn-i|p s,Fts3+ $V/Ke 8.关于日期格式
L}g#h+GP[ wW<u)|>ye 日期格式设定
bV#j@MJ~0 DataFormatString="{0:yyyy-MM-dd}"
n1'i!NWt 7s}F`fjKP 我觉得应该在itembound事件中
1h)K3cC e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
qpa}6JVQ+j ;~`/rh
V\ 9.获取错误信息并到指定页面
!l6ht{ uOd1:\%* 不要使用Response.Redirect,而应该使用Server.Transfer
0+w(cf~6 gh^w
!tH3 e.g
3 "Qg"\ // in global.asax
=i/r: protected void Application_Error(Object sender, EventArgs e) {
]{ch]m if (Server.GetLastError() is HttpUnhandledException)
tWTC'Gx-J Server.Transfer("MyErrorPage.aspx");
\3F)M`g bIV9cpW //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
Mdu\ci)lr }
,.<c|5R BcQw-<veu 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
X %7l!
k[ RYl\Q,# 10.清空Cookie
*Rc?rMF ! Cookie.Expires=[DateTime];
f&$$*a Response.Cookies("UserName").Expires = 0
-7Kstc- P4E_<v[ 11.自定义异常处理
!rG-[7K //自定义异常处理类
6eNBld P! using System;
bp}]'NA using System.Diagnostics;
3u;0,:X& OO,%zwgt namespace MyAppException
#Ny+6XM {
;9Wimf]G,E /// <summary>
cBCC/n /// 从系统异常类ApplicationException继承的应用程序异常处理类。
|]Y6*uEX< /// 自动将异常内容记录到Windows NT/2000的应用程序日志
@?0))@kPc3 /// </summary>
RE]*fRe7# public class AppException:System.ApplicationException
GW.Y=S {
sc rss public AppException()
izu_KBzy {
JX{rum if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
0 r;tI" }
2B_+5 Q}g"pl public AppException(string message)
]^@m $O {
;H?tcb* LogEvent(message);
WO^]bR }
/6y;fx V[7D4r.j public AppException(string message,Exception innerException)
)|Ka'\xr {
I3}I7oc_ LogEvent(message);
[Qqss8a if (innerException != null)
Qv8 =CnuOT {
W{ZJ^QAq/ LogEvent(innerException.Message);
C2DAsSw }
GAh\6ul }
H8Z|gq1r $5Rx>$~+d //日志记录类
B?
XK;*]) using System;
oS_YQOoD using System.Configuration;
C7&L9k~jf using System.Diagnostics;
&.Yu%=} using System.IO;
#X?E#^6?E using System.Text;
~D/1U)kt using System.Threading;
v<| iN# 1Z_ H%( namespace MyEventLog
-"bC[ WN {
w3ZOCWJS /// <summary>
r8o^8 . /// 事件日志记录类,提供事件日志记录支持
<anU#bEuQ /// <remarks>
i3$pqNe /// 定义了4个日志记录方法 (error, warning, info, trace)
@CC
6`D /// </remarks>
\e%%ik,< /// </summary>
]BmnE#n& public class ApplicationLog
CUaL {
SJsbuLxR /// <summary>
jRW@$ <mG /// 将错误信息记录到Win2000/NT事件日志中
Sa:;j4 /// <param name="message">需要记录的文本信息</param>
5tY/ d=\k /// </summary>
D\DwBZ> public static void WriteError(String message)
5hDPX\ {
TR'_v[uK3 WriteLog(TraceLevel.Error, message);
]tmMk7 }
veS)
j?4 7<X!Xok /// <summary>
lKS 2OOYC` /// 将警告信息记录到Win2000/NT事件日志中
: T qeVf /// <param name="message">需要记录的文本信息</param>
NK%Ok /// </summary>
FbW$H]C$ public static void WriteWarning(String message)
]Z[0xs {
!H6X%hlk WriteLog(TraceLevel.Warning, message);
5wv7]F< }
g5*?2D}dqX /?}2OCq /// <summary>
aTBFF /// 将提示信息记录到Win2000/NT事件日志中
NA#,q 8 /// <param name="message">需要记录的文本信息</param>
TT&%[A+ /// </summary>
:fnK`RnaQ public static void WriteInfo(String message)
}8`>n4 {
>g{b'Xx WriteLog(TraceLevel.Info, message);
p>W@h*[6w }
?&VKZSo
/// <summary>
9N6 \Ou~ /// 将跟踪信息记录到Win2000/NT事件日志中
LFvZ 7M\\ /// <param name="message">需要记录的文本信息</param>
"#w%sG^_ /// </summary>
( F4c0 public static void WriteTrace(String message)
gq}c {
g)IW9q2 WriteLog(TraceLevel.Verbose, message);
h)z2#qfc }
:_o^oi7G oZi{v]4 /// <summary>
##OCfCW /// 格式化记录到事件日志的文本信息格式
\\`(x:\ /// <param name="ex">需要格式化的异常对象</param>
akWOE}5# /// <param name="catchInfo">异常信息标题字符串.</param>
lLU8eHf\ /// <retvalue>
5>~D3?IAd /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
OLqynY /// </retvalue>
^szi[Cj /// </summary>
lZ)
qV!< public static String FormatException(Exception ex, String catchInfo)
U7-*]i k {
lA4TWU (] StringBuilder strBuilder = new StringBuilder();
2{B
ScI5K if (catchInfo != String.Empty)
:kd]n$] {
nL[G@1nR strBuilder.Append(catchInfo).Append("\r\n");
SUjo%3R }
!mUO/6Q hq strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
4AKPS&k; return strBuilder.ToString();
9xFI%UOb# }
(,cG+3r] kX+98?h-C /// <summary>
aF>&X-2 /// 实际事件日志写入方法
`^h:}V /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
\=o0MR /// <param name="messageText">要记录的文本.</param>
{*K$gH$ /// </summary>
#WAX&<m private static void WriteLog(TraceLevel level, String messageText)
a TPq1u {
f{P?|8u try
4I*'(6
,! {
<*oV-A EventLogEntryType LogEntryType;
'c3'eJ0 switch (level)
6-+wfrN2 {
D/hq~- g case TraceLevel.Error:
J
:KU~`r LogEntryType = EventLogEntryType.Error;
q)J5tBfJ break;
DZ9^>`* case TraceLevel.Warning:
j}6h}E&dEr LogEntryType = EventLogEntryType.Warning;
V~do6[( break;
A,3qjd,$ c case TraceLevel.Info:
i>dFpJ LogEntryType = EventLogEntryType.Information;
E5Sn mxd break;
p+y"r4 case TraceLevel.Verbose:
WADEDl&,' LogEntryType = EventLogEntryType.SuccessAudit;
js%n]$N break;
0;hn;(V]" default:
'"'RC O LogEntryType = EventLogEntryType.SuccessAudit;
$KlaZ>Dh break;
dEW= V"W }
mmy/YP) jINI<[v[ EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
)UyJ.!Fly //写入事件日志
'6L@l eventLog.WriteEntry(messageText, LogEntryType);
zMd><UQP{ %Hhk
6tR, }
8]rObT9> catch {} //忽略任何异常
RF~G{wz }
"/ Gw`^t } //class ApplicationLog
c:<a"$ }
Z$zX%w <5}j(jxz} 12.Panel 横向滚动,纵向自动扩展
: t/0 <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
aX
Ie f>3)}9?xc} 13.回车转换成Tab
n^*,JL9@ <script language="javascript" for="document" event="onkeydown">
N7YCg if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
B![:fiR` event.keyCode=9;
{SD%{ </script>
[a?bv7Kz A;o({9VH`Z onkeydown="if(event.keyCode==13) event.keyCode=9"
e>bARK< ~ H/ZiBL@ 14.DataGrid超级连接列
>qmNT/ DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
DfVJ~,x~ O- LwX
> 15.DataGrid行随鼠标变色
M }q;\} private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
'`f+QP=` {
C
&y
2I if (e.Item.ItemType!=ListItemType.Header)
fzvyR2 I {
OXn-!J90P e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
O,S>6o)? e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
UT[{NltH }
$xcZ{C }
;'
H\s [JV?Mdzu 16.模板列
4t3>`x
7 <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
s!>9od6^ <ITEMTEMPLATE>
}Z<Sca7 <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
(@;^uVJP </ITEMTEMPLATE>
< RtyW </ASP:TEMPLATECOLUMN>
=K}T; c PZlPC#E- <ASP:TEMPLATECOLUMN headertext="选中">
k!'+7K. <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
MU\Pggs <ITEMTEMPLATE>
>y(loMl <ASP:CHECKBOX id="chkExport" runat="server" />
W1Ye+vg/s </ITEMTEMPLATE>
,+I]\ZeO <EDITITEMTEMPLATE>
1}+b4"7] <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
n$9Xj@+ </EDITITEMTEMPLATE>
N">#fYix </ASP:TEMPLATECOLUMN>
o$V0(1N XODp[+xEEt 后台代码
C
,|9VH protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
zQ<;3+* {
TQ0ZBhd //改变列的选定,实现全选或全不选。
4^ U%` 1 CheckBox chkExport ;
]lqZ9rO if( CheckAll.Checked)
OhlK;hvdB* {
gsl_aW! foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
;%^{Zybh {
jzBW'8 chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
_*b`;{3 chkExport.Checked = true;
jicH 94#(] }
.GL@`7" }
}[h]z7e2S else
Z:es7<#y {
XXA]ukj;r foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
`AvK=] {
G6G-qqXy6 chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
]qu6/Z chkExport.Checked = false;
zmL
VFGnS }
\sfc!5G }
dQ9W40g1 }
1eEML" z%iPk'^ 17.数字格式化
A1`6+8}o;b &m
GU 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
&K(y%ieIJ <%#Container.DataItem("price","{0:¥#,##0.00}")%>
x%HxM~& ]<L~f~vU int i=123456;
g j]8/~lr string s=i.ToString("###,###.00");
5\w*W6y <W) F{N? 18.日期格式化
MNb9 ~kM x$D^Bh, 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
Aq$1#1J ,^Q~w
b!{ 显示为: 2004-8-11 19:44:28
%lGOExV% .kMnq8u 我只想要:2004-8-11 】
!`1m. <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
O:pg+o& |v5
ge3- 应该如何改?
~I%164B+/ NGkxg: 【格式化日期】
=&qH%S6 >5"e<mwD7d 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
E)f9`][ gA}<Y 【日期的验证表达式】
4VwMl)8ic qswC>Gi A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
z@pa;_ ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
ZkQ6~cM VmN 7a6a B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
P8|ANe1
v ^\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]))$
yFQaNuZPC yXv@yn 【大小写转换】
h z{-- HttpUtility.HtmlEncode(string);
O8_!!Qd HttpUtility.HtmlDecode(string)
&zJ*afi) \=mLL|a 19.如何设定全局变量
,Z _@]D@ 3S2Alx!6 Global.asax中
#7}M\\$M y'I
m/{9U Application_Start()事件中
(_CvN=A A'b$X1h 添加Application[属性名] = xxx;
_)!*,\*`{ QjG/H0*mP 就是你的全局变量
N- knhA " zD9R4\X. 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
SK^(7Ws~0 R8eBIJ/@_ HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
NH}o`x/ _>kc: 【ASPNETMENU】点击菜单项弹出新窗口
g,M-[o=Fk y
5=rr3%v 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
!>80p~L <?xml version="1.0" encoding="GB2312"?>
"` cP V){] <MenuData ImagesBaseURL="images/">
9p3~WA/M@ <MenuGroup>
g1"ZpD <MenuItem Label="内参信息" URL="Infomation.aspx" >
zwJ&K;"y( <MenuGroup ID="BBC">
J'7;+.s( <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
2nCc(F&+? <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
XM*5I4V ......
vM5/KrW e@TwZ6l 最好将你的aspnetmenu升级到1.2版
"J2q|@. %6 GM[1__ 21.读取DataGrid控件TextBox值
*AGf'+j*z foreach(DataGrid dgi in yourDataGrid.Items)
9#&H'mG {
8wOscL f: TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
bHE.EBZ tb.Text....
n*na6rV\k }
G)t-W%D& ~9vK6;0 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
ujmIS~" j|K;Yi 〖思归〗
r<!nU&FPD: <asp:TemplateColumn HeaderText="数量">
a|oh Ad <ItemTemplate>
Yk|.UuXT <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
`67i1w` onkeyup="javascript:DoCal()"
{z0iWY2Xw />
Ng*-Bw)p] aGi`(|shW <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
|m"Gr)Gm </ItemTemplate>
j3/6hE> </asp:TemplateColumn>
REK):(i7P q{f\_2[ <asp:TemplateColumn HeaderText="单价">
RJerx:] <ItemTemplate>
hCr,6nc C <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
PQSmBTs. onkeyup="javascript:DoCal()"
KA?%1s(kJ />
sCrP+K0D OW\vbWX <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
87+fd_G =mZYBm,IQ </ItemTemplate>
Y:,C_^$w; </asp:TemplateColumn>
#Pf<2S
aEIz,^3 <asp:TemplateColumn HeaderText="金额">
JJ_Z{ <ItemTemplate>
~S;-sxoO0l <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
R5^6Kwu </ItemTemplate>
E&y)`>Nq{ </asp:TemplateColumn><script language="javascript">
Xy=ETV% function DoCal()
([>__c/Nd {
J9*;Bqzim var e = event.srcElement;
7_l
Wr var row = e.parentNode.parentNode;
)lS04|s var txts = row.all.tags("INPUT");
`NgQ>KV! if (!txts.length || txts.length < 3)
_LC*_LT_ return;
v G\J8s 37a1O>A var q = txts[txts.length-3].value;
z+6PVQ var p = txts[txts.length-2].value;
A-=hvJ5T Xnjl {` if (isNaN(q) || isNaN(p))
C5I7\9F) return;
iO?^y(phC C12V_)~2 q = parseInt(q);
|/n7(!7$[v p = parseFloat(p);
Ti_G \X%FM"r txts[txts.length-1].value = (q * p).toFixed(2);
``VE<:2+ }
i.)n#@M2 </script>
O)VcW/ *Ic^9njt UhS:tT]7 $o5i15Oy. Kd+E]$F_OH 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。
m+s*Io{Ip page_load
63Gq5dF page.smartNavigation=true
+ynhN\S$/ HB5-B XBU 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
* BR#^Wt private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
%~Rg`+ {
Zf!Q4a" for(int i=0;i<e.Item.Cells.Count-1;i++)
,;w~ VZ4 if(e.Item.ItemType==ListItemType.EditType)
Y]0c%Fd {
sV{\IgH/x e.Item.Cells.Attributes.Add("Width", "80px")
"D_:`@V( }
59l9_yFJ }
^$lZ $u~ui@kB 26.对话框
Q> y! private static string ScriptBegin = "<script language=\"JavaScript\">";
_1G/qHf^S private static string ScriptEnd = "</script>";
]7W!f 2@ DAWF
=p] public static void ConfirmMessageBox(string PageTarget,string Content)
q 9xA.* {
^#Q-?O string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
V^[&4 (W:@v&p ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
wW\@^5 P*
0kz@ Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
L f"!:] ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
[y'blCb //Response.Write(strScript);
<zn)f@W }
Tt~[hC
h QA0uT{x90 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
+39uKOrZ ZJ)Z
1.1 取当前年月日时分秒
zqNzWX currentTime=System.DateTime.Now;
rY^uOrR>j* [iq^'E 1.2 取当前年
vMou`[\WlJ int 年= DateTime.Now.Year;
p+]S)K GZw ANw1P{9* 1.3 取当前月
W9w(a:~hY int 月= DateTime.Now.Month;
u]Vt>Ywu ~210O5^ 1.4 取当前日
L$OZ]
int 日= DateTime.Now.Day;
9 CZ@IFS _^GBfM. 1.5 取当前时
MjC<N[WO>N int 时= DateTime.Now.Hour;
TCyev[( _yN5sLLyb 1.6 取当前分
$aJay]F int 分= DateTime.Now.Minute;
t>}S@T{~T )$E){(Aa 1.7 取当前秒
SQf[1}$ . int 秒= DateTime.Now.Second;
d6tLCQ i:jXh9+ 1.8 取当前毫秒
Oz-/0;1n int 毫秒= DateTime.Now.Millisecond;
g*oX`K. iEtR<R>= 28.自定义分页代码:
v;
#y^O
v\?J=|S+ 先定义变量 :
~v2(sRJ public static int pageCount; //总页面数
7MrHu2rZ= public static int curPageIndex=1; //当前页面
ma*#*4 }9\6!GY0 下一页:
61kSCu if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
BI)C\D3[ {
i&6U5Va,G DataGrid1.CurrentPageIndex += 1;
vPYHM2 curPageIndex+=1;
%4!^AA% }
#*CMf.OCh 1PdG1' bind(); // DataGrid1数据绑定函数
+\_\53 BE@(| U 上一页:
"QXnE^ if(DataGrid1.CurrentPageIndex >0)
kK4a;j.# {
>Df;1:U DataGrid1.CurrentPageIndex += 1;
>e6 OlIW curPageIndex-=1;
]h`*w }
18F}3t?? q9ra bind(); // DataGrid1数据绑定函数
;AOLbmb)H4 =bD.5,F) 直接页面跳转:
ya~;Of5 int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
T=-UcF y-.{){uaD if(a<DataGrid1.PageCount)
\v-I<":: {
d5Ae67 this.DataGrid1.CurrentPageIndex=a;
5<PNl~0 }
X5.9~ P<&bAsje bind();
FNLS=4 `O2P&!9& 29.DataGrid使用:
yD& Y`f# zC)JOykI% 添加删除确认:
oc,I,v private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
l([aKm# {
D
)`(b foreach(DataGridItem di in this.DataGrid1.Items)
&\6},JN {
T:{&eWH if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
=ZURh_{xV {
]}b ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
tTTHQ7o*BD }
"0PsCr}! }
{u
y^Bui} }
b?`2LAgn =6ru%.8U, 样式交替:
1gBLJ0q ListItemType itemType = e.Item.ItemType;
jcj8w &UnhYG{A if (itemType == ListItemType.Item )
[5IbR9_ {
Co(N8>1 e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
$[`rY D/. e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
F%p DF\ }
["&{^ else if( itemType == ListItemType.AlternatingItem)
}Em{?Hqy {
aG;F=e e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
H:hM(m0?q e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
Dmi.@. }
ZHZxr qVfn(rZ 添加一个编号列:
HM)D/CO,? DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
|z3!3?%R DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
,|yscp8 D
ON.)F for(int i=0;i<dt.Rows.Count;i++)
E@k'uyIu {
/hqn>t dt.Rows["number"]=(i+1).ToString();
/# Jvt }
a_S`$(7k &Cj~D$kDEu DataGrid1.DataSource=dt;
P,m+^, DataGrid1.DataBind();
5L2j,] o>(<:^x9 DataGrid1中添加一个CheckBox,页面中添加一个全选框
.^=I&X/P private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
u(1m#xr8$ {
=TEe:%mN foreach(DataGridItem thisitem in DataGrid1.Items)
:35h0;8+ {
@a]cI ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
3t+{~{Dj }
M/.M~/~ }
v4Ag~Evcx KxKZC}4m 将当前页面中DataGrid1显示的数据全部删除
N{g7 foreach(DataGridItem thisitem in DataGrid1.Items)
,m`&J? {
\i,H1a if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
GFPrK9T {
M x,5 string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
7Dssr [ Del (strloginid); //删除函数
Eu&$Rq} }
) q'D9x9 }
'+$r7?dKP p2l@6\m\ 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)
Ih5Y7<8b~ %Bm{ctf#) 在Application_Start中添加以下代码:
k]:`<`/I_ Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
".|8 (Y AppSettings["ConnStr"].ToString();
a"xRc lU
Zj 31. 变量.ToString()
T7mT:z>: m[y~-n 字符型转换 转为字符串
.{ILeG 12345.ToString("n"); //生成 12,345.00
p#4*:rpq4 12345.ToString("C"); //生成 ¥12,345.00
|=:@<0.' 12345.ToString("e"); //生成 1.234500e+004
X:`=\D 12345.ToString("f4"); //生成 12345.0000
bQI :N 12345.ToString("x"); //生成 3039 (16进制)
]7k:3"wH 12345.ToString("p"); //生成 1,234,500.00%
~ u1~% t1iz5%`p} 32、变量.Substring(参数1,参数2);
|7,$.MK-@ uZ_?x~V/ 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
H74'I} <?KgzIq2 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
~DxuLk6
s <SCRIPT language="javascript">
sdCG}..` <!--
V}<<?_ function gook(pws)
fFbJE]jW {
P]}:E+E<.I frm.submit();
11QZ- ^ }
S9l po_!z //-->
{}'Jr1 YY tVp_) </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
r%=a :GdAg <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
AFsieJ <tr>
6@#=z <td>
+|S)Mm8- <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
BR@gJ(2 <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
LC=M{\ <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
K%%Ow 3`SH-"{j% <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
}vB{6E+h/w <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
W^[QEmyn !p\
@1? </td>
+K'YVB
U} (L4C1h_]9 </tr>
34)l3UI~ })@xWU6! </form>
7`L]aRS[ 0hkYexX73 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
) xV>Va8) [8tpU&J 下面是获取用户输入的登陆信息的代码:
> (n/ string name;
ho^c#>81 name=Request.QueryString["EmailName"];
|]q{qsy V3*@n*"N; try
LQ Ux} {
*j,noHUT~> int a=name.IndexOf("@",0,name.Length);
7!`1K_v6 f_user.Value=name.Substring(0,a);
%CQa8<q f_domain.Value=name.Substring(a+1,name.Length-(a+1));
gJwX f_pass.Value=Request.QueryString["Psw"];
UjunIKX+ }
M^l%*QF[,q ueW/i catch
_z]v;Q {
wDiq~! Script.Alert("错误的邮箱!");
0#yH<h$ Server.Transfer("index.aspx");
m|?1HCRXRI }