1. 打开新的窗口并传送参数:
vVj [vge56h 传送参数:
YTAmgkF\4 response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
9s_vL9u u,F nAh?" 接收参数:
soPLA68 string a = Request.QueryString("id");
jNe`;o string b = Request.QueryString("id1");
z25lZI" X` 0YaA ` 2.为按钮添加对话框
Z,`iO%W Button1.Attributes.Add("onclick","return confirm(’确认?’)");
[N1hWcfvd button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
"ZHW2l Mf s~X+*@. 3.删除表格选定记录
Z.d7U~_ int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
UU'|Xz9~ string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
)64@2~4y #u2J;9P 4.删除表格记录警告
Hip&8NW private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
XXbqQhf {
$4-$pL6" switch(e.Item.ItemType)
vesJEaw7 {
7:Ax(El case ListItemType.Item :
rxr{/8%f% case ListItemType.AlternatingItem :
Q=BZ N]g2 case ListItemType.EditItem:
5'0xz.)!
TableCell myTableCell;
u7bLZU 0 myTableCell = e.Item.Cells[14];
]"+95*B LinkButton myDeleteButton ;
*eIJwXE myDeleteButton = (LinkButton)myTableCell.Controls[0];
"8'@3$>R= myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
W-Fu -Cz= break;
6Z#\CixG default:
>*@y8u* break;
^BUYjq%(` }
n$U#:aQE :q
ti }
t^`O{m< pX/n)q[ 5.点击表格行链接另一页
Z?pnj8h-& private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
e`d%-9 {
1J6,]M //点击表格打开
cHcmgW\4 if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
bgS$ {n/ e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
V~S0hqW[ }
,QC{3i~ ;^La"m 双击表格连接到另一页
iS&l8@2a |?Frj 在itemDataBind事件中
Jo$G,Q if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
BJgW,huLy {
hdnTXs@z string OrderItemID =e.item.cells[1].Text;
?notxE7 ] ...
DVah e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
zS\E/.X2 }
61/.K_%I. WX}xmtLs 双击表格打开新一页
u)3 $~m~ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
@o#!EfZyE {
@+'-ADX string OrderItemID =e.item.cells[1].Text;
`(v='$6} ...
rEHk w
' e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
Jg]'+>,J }
xY+VyOUs Ct2j ZqCDo ★特别注意:【?id=】 处不能为 【?id =】
JoRT&rkd 6.表格超连接列传递参数
lY~4'8^ <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
JT "B>y> <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
nl(WJKq' hX`hs-*qM 7.表格点击改变颜色
{GKy'/[ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
89n:)|rWq {
K TsgJ\W e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
<'fdkW this.style.color=’buttontext’;this.style.cursor=’default’;");
@HRC\OG }
Zm"{V iv] V[}4L|ad 写在DataGrid的_ItemDataBound里
%1.]c6U if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
@%tRhG {
uch>AuF: e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
-zp0S*iP7 this.style.color=’buttontext’;this.style.cursor=’default’;");
~7$&WzD e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
pM{nh00[ }
!).}u,*'no Aub]IO~ UOGuqV- 8.关于日期格式
6`0mta Q /,MJq#@K 日期格式设定
iT;@bp DataFormatString="{0:yyyy-MM-dd}"
*[r! `6[I^qG". 我觉得应该在itembound事件中
6*qL[m.F[o e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
y.=/J8-> :}h>by= 9.获取错误信息并到指定页面
}w/;){gu ,bM-I2BR 不要使用Response.Redirect,而应该使用Server.Transfer
n:0}utU4 oT{@_U{*J e.g
I.Y['%8,5~ // in global.asax
WYIQE$SEv protected void Application_Error(Object sender, EventArgs e) {
277ASCWLkU if (Server.GetLastError() is HttpUnhandledException)
HxBm~Lcqy Server.Transfer("MyErrorPage.aspx");
:d0Y%vl !" JfOu //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
zVi15P$ }
'qArf 'DCFezdf3 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
L>!8YUz7p$ 65oWD- 10.清空Cookie
#Ei,(xiP Cookie.Expires=[DateTime];
p1D[YeF4 Response.Cookies("UserName").Expires = 0
GyW.2 IcrL 11.自定义异常处理
@)>D))+ //自定义异常处理类
O<jPGU using System;
hKNY+S})g using System.Diagnostics;
b$Hz3TJ( FZ|CqD"# namespace MyAppException
`^(jm {
Um)>2|rp} /// <summary>
2oZ9laJO /// 从系统异常类ApplicationException继承的应用程序异常处理类。
7
uMd
ZpD /// 自动将异常内容记录到Windows NT/2000的应用程序日志
dI*'!wK /// </summary>
j'HkBW:L public class AppException:System.ApplicationException
W%e_~$H0 {
x1gx$P public AppException()
6yu]GK}es {
8ZcU[8r if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
Fl{WAg }
451'>qS o5Y2vmz?9 public AppException(string message)
0rokR&Y-d {
S'U@X LogEvent(message);
CKlL~f EL }
>p])it[q&$ r]P, 9 public AppException(string message,Exception innerException)
V (rr"K+ {
maSgRf[g LogEvent(message);
JR9$.fGJ if (innerException != null)
;pJ2V2 g8 {
Qn:kz*: LogEvent(innerException.Message);
[9mL $;M
W }
Nf9fb? }
6<Hu8$G| ,>LRa //日志记录类
8I+d)(: using System;
+VU4s$w6 using System.Configuration;
-Dzsa using System.Diagnostics;
,Vd7V}t using System.IO;
BF8"rq}r0 using System.Text;
DB`QsiC) using System.Threading;
2GWDEgI1o !q4x~G0d namespace MyEventLog
Q;h3v1GC\P {
F9XT
lA /// <summary>
DFe;4BdC /// 事件日志记录类,提供事件日志记录支持
jN/C'\QL /// <remarks>
$_j1kx$ /// 定义了4个日志记录方法 (error, warning, info, trace)
~fzuwz /// </remarks>
hPdx(E)8!d /// </summary>
zuL7%qyv public class ApplicationLog
o*ANi;1]&B {
lQ*eH10H /// <summary>
L>Jd7;= /// 将错误信息记录到Win2000/NT事件日志中
G+"8l!dC? /// <param name="message">需要记录的文本信息</param>
^uaFg`S /// </summary>
=^h~!ovj: public static void WriteError(String message)
GVd48 * {
;vO@m!h}U WriteLog(TraceLevel.Error, message);
xRDiRj }
*M~.3$NN $V8vrT#:
/// <summary>
<9@7,2 /// 将警告信息记录到Win2000/NT事件日志中
s` >H /// <param name="message">需要记录的文本信息</param>
;Gm>O7"|@ /// </summary>
BSXdvI1y public static void WriteWarning(String message)
EIX\O6* {
aIvBY78o WriteLog(TraceLevel.Warning, message);
:d'65KMi }
pZ+j[! aqQ o,5U> /// <summary>
Etmo78e /// 将提示信息记录到Win2000/NT事件日志中
&?a.mh/8[[ /// <param name="message">需要记录的文本信息</param>
5RA<Z. /// </summary>
R "E<8w public static void WriteInfo(String message)
0#|7U_n {
t*+! n.p WriteLog(TraceLevel.Info, message);
t.3\/ }
0 K3Hf^>m /// <summary>
jmW^`%;7 /// 将跟踪信息记录到Win2000/NT事件日志中
~Q!~ eTw /// <param name="message">需要记录的文本信息</param>
B!q?_[k, /// </summary>
|Is'-g! public static void WriteTrace(String message)
Ysk,w,K {
pv$tTWk WriteLog(TraceLevel.Verbose, message);
S|2VP8xY9 }
G:Hj;&'2 {'(ej5,6 /// <summary>
DJ:38_ F /// 格式化记录到事件日志的文本信息格式
:Kay$r0+ /// <param name="ex">需要格式化的异常对象</param>
:QA@ c|(PF /// <param name="catchInfo">异常信息标题字符串.</param>
ec?1c&E /// <retvalue>
Ve:&'~F2 s /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
|(%AM*n /// </retvalue>
Z% Z"VoxH /// </summary>
ggCr- public static String FormatException(Exception ex, String catchInfo)
T <A {
^_w*XV StringBuilder strBuilder = new StringBuilder();
@aB9%An1 if (catchInfo != String.Empty)
j:?N!*r= {
`!kL1oUYE strBuilder.Append(catchInfo).Append("\r\n");
7x+=7,BZd }
FuMq|S strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
r
}
7:#XQ return strBuilder.ToString();
ib Ue*Z["1 }
e 2*F;.) LV=^jsQ5 /// <summary>
-R@JIe_28f /// 实际事件日志写入方法
,^+#M{Z /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
M7U:g} /// <param name="messageText">要记录的文本.</param>
1E^{B8cm /// </summary>
m3%ef private static void WriteLog(TraceLevel level, String messageText)
LY1KQu Y {
ftW{C1,U7 try
+G\0L_B {
M5rwoyn EventLogEntryType LogEntryType;
(+$ol'i switch (level)
\6c8z/O7 {
I3ho(Kdi case TraceLevel.Error:
gL,"ef+nM LogEntryType = EventLogEntryType.Error;
p[;8 break;
b.6ZfB,+G case TraceLevel.Warning:
KQW!\y?$" LogEntryType = EventLogEntryType.Warning;
BGA%"b break;
hOSf'mi case TraceLevel.Info:
5)x6Q|-u LogEntryType = EventLogEntryType.Information;
toN break;
4 f3=`[% case TraceLevel.Verbose:
!SN WB LogEntryType = EventLogEntryType.SuccessAudit;
B^Bbso'{1 break;
7zi"caY default:
-Cml0}.O LogEntryType = EventLogEntryType.SuccessAudit;
V[To,f break;
ylT6h_z1[Y }
mj,qQ=n;p kYTOldfY2 EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
E.U0qK], //写入事件日志
sMN>wbHwh[ eventLog.WriteEntry(messageText, LogEntryType);
2Z-,c;21 t3Qm-J}wSB }
7rJ9
}/<I catch {} //忽略任何异常
[ArO$X3\ }
(,d/JnP } //class ApplicationLog
O'@m4@L }
D'85VZEFyo oFwG+W/ 12.Panel 横向滚动,纵向自动扩展
}Olr <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
Qlf
9]ug) SAQs{M 13.回车转换成Tab
n8
GF8a <script language="javascript" for="document" event="onkeydown">
L;nZ0)@@l if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
EK:Y2WZ event.keyCode=9;
p5D5%B/ </script>
IMw
"eV oMz/sL'u onkeydown="if(event.keyCode==13) event.keyCode=9"
5_PWGaQa s&Z35IM8| 14.DataGrid超级连接列
p9k4w%
~: DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
e2qpJ4i .<0=a|IAz 15.DataGrid行随鼠标变色
9PUa?Bc`= private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
v hR twi {
D8q3TyCj% if (e.Item.ItemType!=ListItemType.Header)
rO5u~"v] {
1mY+0 e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
0I(uddG3 e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
ntDRlX }
;`;G/1]#9 }
Z={D0` [..,( 16.模板列
xcAF
<ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
(QA-"9v#i, <ITEMTEMPLATE>
.jLMl*6%: <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
&S9f#Ui </ITEMTEMPLATE>
0zlM.rjEZ </ASP:TEMPLATECOLUMN>
r.Y*{!t T$#FAEz <ASP:TEMPLATECOLUMN headertext="选中">
iLjuE)6-$ <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
d3\OHkM0^ <ITEMTEMPLATE>
9k(*?!\; <ASP:CHECKBOX id="chkExport" runat="server" />
rSM$E </ITEMTEMPLATE>
kQqBHA <EDITITEMTEMPLATE>
U)SM),bE[ <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
*4r
s </EDITITEMTEMPLATE>
9k714bnMLX </ASP:TEMPLATECOLUMN>
NvEm,E\| }C_G0'"F 后台代码
}R7sj protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
\.K\YAM< {
eL]{#WL //改变列的选定,实现全选或全不选。
RPz!UMQSD CheckBox chkExport ;
;"d?_{>7 if( CheckAll.Checked)
oV%(
37W9= {
=) mXCA^ foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
#Nu%] {
g,A.Y,}) chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
Eqz4{\
chkExport.Checked = true;
?|%\<h@; }
TBoM{s=. }
<`oCz Q1 else
+Q@/F~1@6@ {
D[?k ,* foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
Vy?R/
Uu {
ccHLL6F{ chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
H1aV}KD chkExport.Checked = false;
?Zc/upd:$N }
>reaIBT }
BFzcoBu- }
$[HcHnf p?J~' 17.数字格式化
Oz4,Y+[# B[)
[fE 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
VEFwqB1l <%#Container.DataItem("price","{0:¥#,##0.00}")%>
bLU^1S8Z FYx `o\ int i=123456;
~zXG<}n string s=i.ToString("###,###.00");
UFzM# 7yq7a[Ra 18.日期格式化
LUe>)eqw ~!a~C~_ 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
WHpUjyBP PK:o}IWn~x 显示为: 2004-8-11 19:44:28
1q}u?7nnSG 3{2^G@j 我只想要:2004-8-11 】
@%I_&!d <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
>?\v@ $UFge%`,q@ 应该如何改?
reqfgNg Wx']tFn" 【格式化日期】
+d6Aw}* mkj;PYa 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
O<eWq] uQ)JC7b\ 【日期的验证表达式】
%
K9;
qJ5 \-$bo=s. A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
:_{{PY0PK ^((\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})))?$
E3FW*UNg[y L|C1C
cP B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
gL[1wM%? ^\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]))$
XEvGhy# <WQ<<s@#pb 【大小写转换】
rm5T=fNJ HttpUtility.HtmlEncode(string);
T!^?d5uW# HttpUtility.HtmlDecode(string)
RpmBP[ y(bt56 |
z 19.如何设定全局变量
h X>VVeIZ Tdk2436= Global.asax中
bo~{<UT &6,Yjs:T m Application_Start()事件中
|dB1R%
@dWS*@ 添加Application[属性名] = xxx;
/P?|4D}< oPBg+Bh* 就是你的全局变量
yKe*<\ &(H)gjH 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
%ojR?=ON -$L],q_S^ HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
|5<&r]xN =x='<{jtgW 【ASPNETMENU】点击菜单项弹出新窗口
y'0dl "Dy\ !ho5VAt 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
|&0"N[t <?xml version="1.0" encoding="GB2312"?>
.%J?T5D <MenuData ImagesBaseURL="images/">
xnRp/I <MenuGroup>
(giTp@Tp <MenuItem Label="内参信息" URL="Infomation.aspx" >
I\Gp9w0f <MenuGroup ID="BBC">
HP4'8#3o <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
O#Zs3k <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
xZ S\#{ ......
iXG>j.w{79 B:6sVJ 最好将你的aspnetmenu升级到1.2版
IQk# @sgT[P*ut 21.读取DataGrid控件TextBox值
H.l,%x&K foreach(DataGrid dgi in yourDataGrid.Items)
:EQme0OW {
dm/\uE'l TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
Hl3XqR tb.Text....
j
J`Zz }
.5KC'? xM'S
;Sg 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?
N?2#YTjR evg 7d 〖思归〗
4U! .UNi <asp:TemplateColumn HeaderText="数量">
"z#?OV5 <ItemTemplate>
cyHak u+ <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
WFeMr%Zqh> onkeyup="javascript:DoCal()"
${I@YSU />
RaM#@D7 3w<j:\i <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
,SJK </ItemTemplate>
/n(bThDH </asp:TemplateColumn>
i_E#cU _r?;lnWx@ <asp:TemplateColumn HeaderText="单价">
]\D6;E8P-~ <ItemTemplate>
QS=$#Gp <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
%.Tf u0M onkeyup="javascript:DoCal()"
{YKMQI^O/ />
\9|] {Hp}F!X$ <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
NBg>i7KQ -t~B@% </ItemTemplate>
![P(B0Ct/ </asp:TemplateColumn>
~0^,L3M LA=>g/+i.X <asp:TemplateColumn HeaderText="金额">
|IcxegE <ItemTemplate>
{Y*]Qc <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
d*\C^:Z </ItemTemplate>
&TkbnDuYd~ </asp:TemplateColumn><script language="javascript">
<v7KE*# function DoCal()
q@MjeGs% {
.e
_D3Xp< var e = event.srcElement;
4QKE{0NE var row = e.parentNode.parentNode;
,m?UFRi var txts = row.all.tags("INPUT");
~4 ~Tcn if (!txts.length || txts.length < 3)
\'LC C- return;
4 _U,-%/ I_6` Z 0 var q = txts[txts.length-3].value;
E_'n4@}Cx var p = txts[txts.length-2].value;
3@cJ= 5KH'|z if (isNaN(q) || isNaN(p))
4h_4jqf=pU return;
+/>YH-P= dXo'#. q = parseInt(q);
\2<yZCn p = parseFloat(p);
mN'9|`>V> HsgTHe txts[txts.length-1].value = (q * p).toFixed(2);
^9*|_\3N }
|nH0~P#! </script>
rIFC#Jd/ }AsF\W+5 :D+SY iUG/ <]e;tF)+ 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。
9hs{uxwuEE page_load
@H# kvYWmn page.smartNavigation=true
yxP ?O@( 4TQISu) 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 ?
ah Xq{> private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
&G,o guo {
4^NHf|UJH for(int i=0;i<e.Item.Cells.Count-1;i++)
NdSxWrD`m if(e.Item.ItemType==ListItemType.EditType)
'5,,XhP {
{kRC!} e.Item.Cells.Attributes.Add("Width", "80px")
e"adkV }
Z8dN0AqZ }
]>4Qs (Nlm4*{h 26.对话框
>scS wT private static string ScriptBegin = "<script language=\"JavaScript\">";
N
evvA(M private static string ScriptEnd = "</script>";
XsN#<"f;i ccRk4xR public static void ConfirmMessageBox(string PageTarget,string Content)
0l1]QD+Gc5 {
:*Ggz| string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
a=B0ytNm :kx#];2i ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
bSmaE7 }NBJ T4R Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
IK? $!jh ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
UlN|Oy, //Response.Write(strScript);
&CmkNm_B }
GN;XB b]w =i5:*J 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
UuqnL{ 8kc'|F\ 1.1 取当前年月日时分秒
Q
fyERa\rb currentTime=System.DateTime.Now;
c3!|h1h/v ^$,kTU'= 1.2 取当前年
SyVbCj int 年= DateTime.Now.Year;
LLHOWD C(2 ;)]zv\fC 1.3 取当前月
f>+}U;)EF int 月= DateTime.Now.Month;
wG?kcfu geN%rD 1.4 取当前日
j p]geV54 int 日= DateTime.Now.Day;
3cFLU^ %+!9 1.5 取当前时
e&4wwP"`< int 时= DateTime.Now.Hour;
Qn3+bF4 ;,})VoC\! 1.6 取当前分
6:z&ukqE int 分= DateTime.Now.Minute;
3L]^x9Cu) )Qj9kJq 1.7 取当前秒
Q0; gF? int 秒= DateTime.Now.Second;
4$2T zJE !cq|g 1.8 取当前毫秒
Tc(v\|F, int 毫秒= DateTime.Now.Millisecond;
r=||sZs rtF6Lg 28.自定义分页代码:
<r`Jn49 >~>[}d;glw 先定义变量 :
jTgh+j]AP public static int pageCount; //总页面数
;<@O^_+ public static int curPageIndex=1; //当前页面
X$&Sw3c *B<I> <'G 下一页:
KJC9^BAr if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
_po 4(U& {
L"IHyUW DataGrid1.CurrentPageIndex += 1;
0fK|}mmZA curPageIndex+=1;
I^Jp
)k*z }
GXK?7S0H &&S4x bind(); // DataGrid1数据绑定函数
eRy'N|' GWZXRUc 上一页:
t8N9/DZ}Q if(DataGrid1.CurrentPageIndex >0)
1p<?S}zg@ {
~%K(ou=2 DataGrid1.CurrentPageIndex += 1;
64>[pZF8 curPageIndex-=1;
w&cyGd D5 }
uBkny; 7=*k@9 bind(); // DataGrid1数据绑定函数
*dTf(J lFV|GJ 直接页面跳转:
g uWqHVSs int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
0_pwY=P ZDmk<}A-U if(a<DataGrid1.PageCount)
R.`J"J0/~ {
H&IP>8Dk this.DataGrid1.CurrentPageIndex=a;
:Qp/3(g e }
3A}8? Du4#\OK bind();
^Jc0c)* x2wWp-Z
29.DataGrid使用:
'|?r&-5 h D?F5o^e"h< 添加删除确认:
2`U&,,-Mf private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
V\hct$ 7Vm {
j5GZ;d? foreach(DataGridItem di in this.DataGrid1.Items)
]~Qk g+>'& {
/iuNdh if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
GZX!iT {
~(]DNXB8I` ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
,ToEKId }
{*$J&{6V }
HKw:fGt/o^ }
F|Ihq^q HZ=yfJs nc 样式交替:
g|_*(=Q ListItemType itemType = e.Item.ItemType;
?R:Hj=. ve^MqW&S if (itemType == ListItemType.Item )
EC#10. {
*~^^A9C8 e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
=V
7w CW e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
o9\m?~g!E }
P`"DepeD else if( itemType == ListItemType.AlternatingItem)
.WE0T|qDX {
;_&L^)~P$ e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
&L~rq)r/& e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
5c7a\J9> }
6Ymk8.PF e'VXyf 添加一个编号列:
l'\b(3JF DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
}rZ=j6Z
DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
/n:fxdhe rNC3h"i\ for(int i=0;i<dt.Rows.Count;i++)
ra2q. H {
)ix E dt.Rows["number"]=(i+1).ToString();
Nq6CvDXi }
7~f6j:{|z CI'5JOqP DataGrid1.DataSource=dt;
9ksrr{tW DataGrid1.DataBind();
lM,:c.R x&Rp
m<4 DataGrid1中添加一个CheckBox,页面中添加一个全选框
0pOha(,~ private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
`VN<6o( {
?%ntO] foreach(DataGridItem thisitem in DataGrid1.Items)
x=N;> {
@R{&>Q:. ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
,[#f}|s_ }
s%|J(0 }
`BD`pa7.% 7SZs/wWh% 将当前页面中DataGrid1显示的数据全部删除
z\
pT+9& foreach(DataGridItem thisitem in DataGrid1.Items)
V= PoQ9d {
^]gl#&"D if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
{'kL]qLg {
pBkPn+@ string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
=^v Ub Del (strloginid); //删除函数
p2^OQK }
) &-E@% \ }
RBwV+X[B ^yTN(\9 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)
U$bM:d )wd~639U 在Application_Start中添加以下代码:
+ETw:i9!? Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
C\D4C]/8 AppSettings["ConnStr"].ToString();
0fU>L^P_? blv6 31. 变量.ToString()
f}eVfAf 5GkM7Zu!{j 字符型转换 转为字符串
kGP?Jx\PkH 12345.ToString("n"); //生成 12,345.00
d*HAKXd&:j 12345.ToString("C"); //生成 ¥12,345.00
wf1DvsJQl 12345.ToString("e"); //生成 1.234500e+004
Q pq0j^\ 12345.ToString("f4"); //生成 12345.0000
{*9i}w|2 12345.ToString("x"); //生成 3039 (16进制)
8<!9mgh 12345.ToString("p"); //生成 1,234,500.00%
UUq9UV-h %xz02$k 32、变量.Substring(参数1,参数2);
# 95/,k q%Pnx_RB 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);
m(Ynl=c
[4yQ-L)]e 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)
W9~datIh> <SCRIPT language="javascript">
17d$gZ1O: <!--
^(:Rbsl function gook(pws)
etVE8N' {
e>.xXg6Zn frm.submit();
5H5Kt9DoW }
dM$S|,H //-->
&tIm r%i{a </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
eSU8/9B <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
Xy+|D#b <tr>
B#yyO>0k] <td>
{r)M@@[ <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
,P +&-}gn9 <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
m>_'f{&u <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
i^l;PvIF .O^|MhBJu <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
0
CS_- <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
{5h_$a!TaU (%Rs&/vU~ </td>
~fe0Ba4 !k63`(Ti </tr>
J4i0+u /'&LM\ </form>
sJWwkR O"Q=66.CR 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。
[tN/}_] WyETg!b[ 下面是获取用户输入的登陆信息的代码:
e|P60cd / string name;
F/Xhm91^ name=Request.QueryString["EmailName"];
&Is%I<'o vI@8DWs try
we9AB_y {
Jo@9f(hq int a=name.IndexOf("@",0,name.Length);
X(\RA.64 f_user.Value=name.Substring(0,a);
nDvWOt f_domain.Value=name.Substring(a+1,name.Length-(a+1));
;o\wSHc f_pass.Value=Request.QueryString["Psw"];
-E1}mL}I` }
\q>,c49a{ sBwgl9 catch
Ih0GzyU*4 {
^8iy( Script.Alert("错误的邮箱!");
ITV}f# Server.Transfer("index.aspx");
hGeRM4zVZZ }