1. 打开新的窗口并传送参数:
yB7si(,1> 0^Ldw)C" 传送参数:
S+KKGi_e response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
*0,*F ~n "k+ :!D 接收参数:
:T$}@& - string a = Request.QueryString("id");
\mu';[gLd string b = Request.QueryString("id1");
vM5I2C3_>! p&Nav,9x 2.为按钮添加对话框
+&"W:Le: Button1.Attributes.Add("onclick","return confirm(’确认?’)");
&u|t{C#0 button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
=.S2gO > 2u_=i$xW 3.删除表格选定记录
U7fpaxc- int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
hb~d4J=S string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
,e$RvFB D_<B^3w) 4.删除表格记录警告
yD3vq}U! private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
}mp`!7?>O {
sCy.i/y switch(e.Item.ItemType)
"Ke_dM {
=>Ae]mi7 case ListItemType.Item :
Kc
r)W case ListItemType.AlternatingItem :
;;UsHhbhI case ListItemType.EditItem:
IuPDr % TableCell myTableCell;
~hk!N!J\ myTableCell = e.Item.Cells[14];
|1ry*~ LinkButton myDeleteButton ;
(*eX'^Q)d myDeleteButton = (LinkButton)myTableCell.Controls[0];
rA<J^dX=C myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
:FSg%IUX break;
ZHA&gdK@ default:
3<FqK \P break;
<F_w4! }
r{yIF~k@ /:A239=+ ? }
Yy[=E\z ^+~$eg&js 5.点击表格行链接另一页
y'f-4E< private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
uJ=&++[ {
`$ bQ8$+Ci //点击表格打开
jc6~V$3 if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
nC/T$
#G e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
\K9Y@jnr }
coaJDg+ 7m8:odeF 双击表格连接到另一页
6"?#s/fk lKI]q<2 在itemDataBind事件中
,trh)ZZYW| if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
\iEJ9V {
0_y&9Te string OrderItemID =e.item.cells[1].Text;
PK?}hz ...
D0f7I:i1 e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
S#+ _HFUK{ }
.*EP$pc (#je0ES 双击表格打开新一页
.q]K:}9!\ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
FGwgSrXL7 {
IMSm string OrderItemID =e.item.cells[1].Text;
QKz2ONV=) ...
Q(8W5Fb? e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
c$A}mL_ }
e!i.u'z ?1]B(V9nBq ★特别注意:【?id=】 处不能为 【?id =】
,aWfGh#$ 6.表格超连接列传递参数
nYRD>S?uz <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
<N80MUL| <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
g5Hsz,x I GcR5/3 7.表格点击改变颜色
S9/\L6Rmf if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
DML0paOm5 {
8^-g yx' e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
9D%~~~
%b this.style.color=’buttontext’;this.style.cursor=’default’;");
Q"xDRQA }
jTQN(a9Y *OE>gg&?Nh 写在DataGrid的_ItemDataBound里
~ C_2D? if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
E\}Q9,Z$ {
Xw^:<Nx: e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
DUm/0q& this.style.color=’buttontext’;this.style.cursor=’default’;");
QQ,w:OjA0 e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
A@k=Mk }
>W8PLo+i oDA'}[/ JR_c]AQYu 8.关于日期格式
L?y,xA_ [7)#3 日期格式设定
wVs |mG" DataFormatString="{0:yyyy-MM-dd}"
-gS/ ]}0+7Q 我觉得应该在itembound事件中
/ dn]`Ge) e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
R91u6r# 3^&pb 9.获取错误信息并到指定页面
t;ga>^NA" s{j3F 不要使用Response.Redirect,而应该使用Server.Transfer
zwHTtE `Sj8<O} e.g
GHWpL\A{8` // in global.asax
M9S[{Jj* protected void Application_Error(Object sender, EventArgs e) {
`V0]t_*D if (Server.GetLastError() is HttpUnhandledException)
7
~ Bo*UM Server.Transfer("MyErrorPage.aspx");
wY}+d0Ch ~RE`@/wQ] //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
Y.Ew;\6U }
8%U)EU 3?/} 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
|y=D^NTG #$fFp 10.清空Cookie
*m]%eU( Cookie.Expires=[DateTime];
Z=sAR(n}~ Response.Cookies("UserName").Expires = 0
EA>$t\z AB#hhi# 11.自定义异常处理
ck<4_?1] //自定义异常处理类
K<_H`k*x using System;
<$9AP using System.Diagnostics;
X!_OOfueP8 Kd,m;S\ namespace MyAppException
XJOo.Y {
anV)$PT= /// <summary>
o_$r*Z|HG /// 从系统异常类ApplicationException继承的应用程序异常处理类。
~E`A, /// 自动将异常内容记录到Windows NT/2000的应用程序日志
AAl`bhx'n /// </summary>
"ChBcxvxb: public class AppException:System.ApplicationException
z?YGE iR/} {
T
+4!g|Y public AppException()
@o^sp|k ! {
Vgm{=$ if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
B'0Il"g' }
,>jm|BTD { (}qLxZ/U public AppException(string message)
V[#lFl). {
Ul@'z| LogEvent(message);
$1@{Zz!S }
Hm^p^,}_x {S&&X&A`v public AppException(string message,Exception innerException)
*AN#D?X_ {
|m EJJg`"7 LogEvent(message);
%yrP: fg/ if (innerException != null)
O@Kr}8^, {
Ua3ERBX{ LogEvent(innerException.Message);
BR%: `uiQ< }
(c_hX( }
^
pR& a:]yFi:Su //日志记录类
Zj<T#4?8 using System;
( jyJ-qe using System.Configuration;
MR6vr.~ using System.Diagnostics;
JuI,wA using System.IO;
?8nG F%p using System.Text;
Zj^H3h using System.Threading;
Ek.j@79 RGKJO_*J2 namespace MyEventLog
QBo^{], {
tr} $82Po /// <summary>
wLbnsqa /// 事件日志记录类,提供事件日志记录支持
Y{'G2)e /// <remarks>
Stw6%T- /// 定义了4个日志记录方法 (error, warning, info, trace)
y|mR'{$I /// </remarks>
gy[uqm_ T /// </summary>
\
a<Ye
T public class ApplicationLog
1wM
p3 {
1|89-Ii] /// <summary>
5~?
J /// 将错误信息记录到Win2000/NT事件日志中
abv] /// <param name="message">需要记录的文本信息</param>
TP^0`L /// </summary>
\dMsv1\ public static void WriteError(String message)
Q&LkST-i {
5f5`7uVJF WriteLog(TraceLevel.Error, message);
32Z4&~I }
]7O?c= W2k~N X#@ /// <summary>
Glr.)PA /// 将警告信息记录到Win2000/NT事件日志中
sig_2; /// <param name="message">需要记录的文本信息</param>
6bn-NY:i /// </summary>
Cu:-< public static void WriteWarning(String message)
h^)2:0#{I {
dd+).* WriteLog(TraceLevel.Warning, message);
StVv"YY }
b6(yyYdF rG]Xgq" /// <summary>
_V?Q4}7d/ /// 将提示信息记录到Win2000/NT事件日志中
(
FRf.mv{ /// <param name="message">需要记录的文本信息</param>
l]Sui_+ZU /// </summary>
8K/lpqw public static void WriteInfo(String message)
D.e*IP1R {
`xr%LsNn WriteLog(TraceLevel.Info, message);
=EJ"edw]%0 }
\4[Ta,;t /// <summary>
G!IQ<FuY /// 将跟踪信息记录到Win2000/NT事件日志中
{mQJ6
G'ny /// <param name="message">需要记录的文本信息</param>
pf_ /jR /// </summary>
2^aTW`>L public static void WriteTrace(String message)
one>vi`= {
GwULtRa/ WriteLog(TraceLevel.Verbose, message);
-iHhpD9"X }
T_-MSXhA KPhqD5,
( /// <summary>
SJ-Sac58r /// 格式化记录到事件日志的文本信息格式
;~J~g# /// <param name="ex">需要格式化的异常对象</param>
5dk,!Cjg /// <param name="catchInfo">异常信息标题字符串.</param>
Ah`dt8t /// <retvalue>
As`^Ku& /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
C(t/:?(y /// </retvalue>
|*5nr5c_L /// </summary>
&?nF';& public static String FormatException(Exception ex, String catchInfo)
'Ap5Aq {
CmOb+:4@K StringBuilder strBuilder = new StringBuilder();
ap~Iz if (catchInfo != String.Empty)
as4NvZ@+r {
`^kST>< strBuilder.Append(catchInfo).Append("\r\n");
(Nahtx!/9 }
%"zJsYQ! strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
Biwdb return strBuilder.ToString();
$5r,Q{;$ }
)QD}R36Ic `9l\~t(M
/// <summary>
$ Zr,- /// 实际事件日志写入方法
ise}> A!t /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
,0bM*qob /// <param name="messageText">要记录的文本.</param>
z
sPuLn9G /// </summary>
t,,^^ll private static void WriteLog(TraceLevel level, String messageText)
mtHz6+ {
$@)d9u
cd try
U^&Cvxc[[ {
X;:xGZ-oY EventLogEntryType LogEntryType;
f,>i%. switch (level)
ex458^N_ {
}q W aE case TraceLevel.Error:
k;5}@3iQ LogEntryType = EventLogEntryType.Error;
r.;iO0[/ break;
Rjl __90
case TraceLevel.Warning:
rR~X>+K LogEntryType = EventLogEntryType.Warning;
`WS_*fJ5 break;
:\_MA^< case TraceLevel.Info:
F.D1;,x LogEntryType = EventLogEntryType.Information;
c^IEj1@}'? break;
(q N(#~ case TraceLevel.Verbose:
H@'
@xHv LogEntryType = EventLogEntryType.SuccessAudit;
hJsC
\ C,^ break;
eB*8)gYh default:
|$2N$6\SP LogEntryType = EventLogEntryType.SuccessAudit;
J
*?_SnZ break;
S45>f(! }
5i#w:O\cz +=Wdn)T EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
^6>|! //写入事件日志
~+yo;[1Yc eventLog.WriteEntry(messageText, LogEntryType);
wf%Ep#^6} Els= :4 }
[uQZD1<q catch {} //忽略任何异常
NfF:[qwh }
/8\&f%E } //class ApplicationLog
cV,Dl`1r }
1C=P #MU` FSs$ ]
d; 12.Panel 横向滚动,纵向自动扩展
&Ld8Z9IeFp <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
M) XQi/ mp3_n:R? 13.回车转换成Tab
4CT9-2UC <script language="javascript" for="document" event="onkeydown">
z,YUguc|
if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
.6o y>4 event.keyCode=9;
hP8&n9o </script>
$4JX#lkt )%w8>1}c onkeydown="if(event.keyCode==13) event.keyCode=9"
ya g }#5roNH~Z 14.DataGrid超级连接列
ItE~MJ5p DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
a' o8n6i }p?V5Qp 15.DataGrid行随鼠标变色
Vj`s_IPY private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
JBAK*g {
ky$:C,1t if (e.Item.ItemType!=ListItemType.Header)
^)^|;C\` {
W r7e_ e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
t`t:qko e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
5XO'OSdYq }
eAKQR }
ik0Q^^1?Y n4T2'e 16.模板列
p+UHJ& <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
<JM%Kn ) <ITEMTEMPLATE>
^Jl!WH=20} <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
T)f_W </ITEMTEMPLATE>
L$c%u </ASP:TEMPLATECOLUMN>
)Q/`o,Vm EiP&Y,vT <ASP:TEMPLATECOLUMN headertext="选中">
(A fbS=[ <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
JO{-
P <ITEMTEMPLATE>
X]U"ru{1q <ASP:CHECKBOX id="chkExport" runat="server" />
b(-t)5^} </ITEMTEMPLATE>
udI:]:,P <EDITITEMTEMPLATE>
| O+># <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
qS}RFM5| </EDITITEMTEMPLATE>
BBE1}V!u
</ASP:TEMPLATECOLUMN>
j{Jc6U ZfCr"aL 后台代码
;}jbdS3 protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
m3Z}eC8LK {
X8n/XG ~_ //改变列的选定,实现全选或全不选。
^I~T$YjC ' CheckBox chkExport ;
AYu'ptDNr if( CheckAll.Checked)
G^@Jgx3n {
?WtG|w foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
XAxI?y[c {
`m; "I chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
Q[Sd chkExport.Checked = true;
s5aOAyb*w }
(VPM>ndkw }
4\SBf\ c else
EJ;0ypbG {
$F`<&o foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
)bXx9,VL {
akc"}+-oX chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
r,@X>_} chkExport.Checked = false;
2G}7R5``9 }
1o~U+s_r }
YEPG[W<kg }
5OW8G][ b|8>eY 17.数字格式化
,#jhKnk2e +9
p`D 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
2|H91Y2 <%#Container.DataItem("price","{0:¥#,##0.00}")%>
H0b6ZA%n B6'%J int i=123456;
uyRA`<&w string s=i.ToString("###,###.00");
7}tZ?vD 9H, &nET 18.日期格式化
{}J@+Zsi (06Vcqg 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
;ko[(eFN@ MLD>"W 显示为: 2004-8-11 19:44:28
&;h~JS= p1VahjRE- 我只想要:2004-8-11 】
!k= 0X\5L <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
:_QAjU ['Y+z2k 应该如何改?
|RAQ% VXm :CkR4J!m3 【格式化日期】
o=RqegL 4>"cc@8&~ 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
)lDIzLp L^ #< HQ 【日期的验证表达式】
kulQR>u ZYA.1VrM A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
7=p-A_X ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
K)Xs L X!#i@V B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
ss0'GfP ^\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]))$
Vyt~OTI\ +/!=Ub[:U 【大小写转换】
A{8K#@! HttpUtility.HtmlEncode(string);
0nD=|W\@{ HttpUtility.HtmlDecode(string)
bhqq oLqbR? 19.如何设定全局变量
2htA7V*dD !,6v=n[Nz Global.asax中
.KU SNrs' n:bB$Ai2 Application_Start()事件中
^`jZKh8)h ;&W; 添加Application[属性名] = xxx;
lR@i`)'?U $nfBvf 就是你的全局变量
^L8Wn6s' <h@z=ijN 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
xf^<ec 8G5)o` HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
Nr]8P/[~ ANFg]g.Az 【ASPNETMENU】点击菜单项弹出新窗口
.?i-rTF: b,rH&+2H 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
2i7i\?<. <?xml version="1.0" encoding="GB2312"?>
s?@)a,C%k <MenuData ImagesBaseURL="images/">
<nb3~z1 <MenuGroup>
$p0 /6c <MenuItem Label="内参信息" URL="Infomation.aspx" >
DD@)z0W <MenuGroup ID="BBC">
Q9yGQu <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
}l}yn@hYC <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
pVV}1RDa ......
vhYMWfbY `dgM|.w5= 最好将你的aspnetmenu升级到1.2版
!O F?xW :PFx& 21.读取DataGrid控件TextBox值
W8G9rB|T foreach(DataGrid dgi in yourDataGrid.Items)
)@<HCRQ'q {
pyg!rf- TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
YH'$_,8peM tb.Text....
{HIR>])o }
EREolCASb 9RCO|J 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?
8NaL{j1` zmB31' _ 〖思归〗
FI1THzW4J <asp:TemplateColumn HeaderText="数量">
GJIWG&C03 <ItemTemplate>
%_b^!FR <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
j!lAxlOX onkeyup="javascript:DoCal()"
C@y}*XV[b />
N>A{)_k3 9@#h}E1$ <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
QM[A;WBr7 </ItemTemplate>
${eY9-r_% </asp:TemplateColumn>
d1~_?V'r] ggm2%|?X <asp:TemplateColumn HeaderText="单价">
" K 8&{= <ItemTemplate>
^])e[RN7?n <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
XOysgX0g onkeyup="javascript:DoCal()"
6%gB
E />
}A4nJ>`tq Pv/Pww\ <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
)|w*/JK\Z
JJ/1daj </ItemTemplate>
,&.W6sW </asp:TemplateColumn>
Z0[)u_< )%iRZ\`f <asp:TemplateColumn HeaderText="金额">
F>~ xzc <ItemTemplate>
<`R|a * <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
JcTp(fnW.~ </ItemTemplate>
XYqpI/s </asp:TemplateColumn><script language="javascript">
XJx,9trH function DoCal()
$nB-ADRu@ {
!;o\5x<'$O var e = event.srcElement;
24T@N~\g var row = e.parentNode.parentNode;
$?FS00p*|X var txts = row.all.tags("INPUT");
1Yc%0L( if (!txts.length || txts.length < 3)
H+4=|mkQ return;
{8^Gs^c
c {fog<1c var q = txts[txts.length-3].value;
U/T4i# var p = txts[txts.length-2].value;
xT9Yes& 8{R_6BS if (isNaN(q) || isNaN(p))
7"ylN"syZ return;
Dh2:2Rz=#7 cPpu q = parseInt(q);
5cD
XWF p = parseFloat(p);
h [nH<m aB6Ye/Io txts[txts.length-1].value = (q * p).toFixed(2);
1<xcMn0et }
v"z(JF </script>
"'['(e+7 Wgxn`6 / Zo~1q P3'2IzNw +"]oc{W! 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。
BJ~ivT< page_load
{5T0RL{\N page.smartNavigation=true
9*#$0Y= m)s
xotgXf 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
<"*"1(wN private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
ZhH+D`9 {
mfXD1]<. for(int i=0;i<e.Item.Cells.Count-1;i++)
`.{U-U\ if(e.Item.ItemType==ListItemType.EditType)
; D1FAz {
5a'yXB} e.Item.Cells.Attributes.Add("Width", "80px")
WK
pUn8&N
}
/&CUspb }
CV '&4oq ; ;<J
x. 26.对话框
($c`s8mp private static string ScriptBegin = "<script language=\"JavaScript\">";
9160L qY private static string ScriptEnd = "</script>";
b.QpHrnhtK vFTXTbt'h public static void ConfirmMessageBox(string PageTarget,string Content)
A2Q[%A {
M]c7D`%s string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
YzVN2f!n l;Q
>b]DZ ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
g^1r0.Sp{8 5N\+@grp Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
A:/}` ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
hQXxG/yFm //Response.Write(strScript);
/T,zZ9= }
zVdKYs i^ VsEGX@;tO 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
x8Q~VVZr DlDB=N0@S 1.1 取当前年月日时分秒
MFv
Si currentTime=System.DateTime.Now;
VSh !4z1 bZiyapM 1.2 取当前年
+4Q[N;[+* int 年= DateTime.Now.Year;
XTV0Le\f &`\ ep9 1.3 取当前月
9qEOgJ int 月= DateTime.Now.Month;
[6H}/_nD ]3}feU+ 1.4 取当前日
qmEoqU int 日= DateTime.Now.Day;
ozU2 [eyb7\#
1.5 取当前时
V"O9n[ | int 时= DateTime.Now.Hour;
H.:9:I[n KGu= ; 1.6 取当前分
`qE4U4 int 分= DateTime.Now.Minute;
J;~E<_"Hn "=qv#mZ#9 1.7 取当前秒
z=qWJQ int 秒= DateTime.Now.Second;
mmHJh\2v V~85oUc\- 1.8 取当前毫秒
GA\2i0ow int 毫秒= DateTime.Now.Millisecond;
Rb#/qkk/ pw=F' Y@N
28.自定义分页代码:
hcyn
}wfI4?}j} 先定义变量 :
^p,3)$ public static int pageCount; //总页面数
? ~,JY public static int curPageIndex=1; //当前页面
gwiR/(1 Tv\HAK<N 下一页:
`NQ{)N0! if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
M|k&TTV {
vO]J]][ DataGrid1.CurrentPageIndex += 1;
'*4iqPR; curPageIndex+=1;
MI\]IQU }
Ir/:d]N* \#++s&06 bind(); // DataGrid1数据绑定函数
3w6&&R9 (xL
:; 上一页:
*Rq`*D>:U} if(DataGrid1.CurrentPageIndex >0)
3T1P$E" m {
+C_*Vs@4 DataGrid1.CurrentPageIndex += 1;
2SciB*5 curPageIndex-=1;
t@)my[ ! }
~T 02._E F$h'p4$T bind(); // DataGrid1数据绑定函数
3p_b8K_bG T%kKVr 直接页面跳转:
")ED)&e int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
9`BEi(z &\k?xN if(a<DataGrid1.PageCount)
zw]3Vg{T {
q!&B6] this.DataGrid1.CurrentPageIndex=a;
Ukc'?p,* }
jn$j^51`C wWTQ6~Y%d bind();
Ff<)4`J B'p5M.6d#: 29.DataGrid使用:
b66R}=P l [/OQyb4F< 添加删除确认:
,]7XMU3 private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
&2{]hRM {
c|lU(Tf foreach(DataGridItem di in this.DataGrid1.Items)
#W|!fILL {
IBET'!j4" if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
WYLX?x {
>)^NJ2Fd ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
<Y>3 }
W`x)=y]Z }
)[jy[[K( }
g/#~N~& YBvd
q1 样式交替:
o@3B(j;J` ListItemType itemType = e.Item.ItemType;
/UHp [yod ,dcg?48 if (itemType == ListItemType.Item )
)b92yP{ {
EeB3 } e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
$)*xC!@6X e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
'#H")i }
\XS]N_}8> else if( itemType == ListItemType.AlternatingItem)
RdI};K {
Dx3 %KS e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
JNBT^=x e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
R hio7C }
~^7r?<aKc JYV\oV{ 添加一个编号列:
wAh# DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
ltSh'w0 DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
S?4KC^Y5 x:
~d@ for(int i=0;i<dt.Rows.Count;i++)
a5?A!k\2 {
7`fY*O6 dt.Rows["number"]=(i+1).ToString();
Dtt-|_EMS }
`W"G!X- TQJF+;% DataGrid1.DataSource=dt;
e+@xsn3 DataGrid1.DataBind();
v=p0 +J> ,|pp67 DataGrid1中添加一个CheckBox,页面中添加一个全选框
t$ZkdF private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
J3=BE2L {
*1bzg/T< foreach(DataGridItem thisitem in DataGrid1.Items)
"IwM:v {
)0-o%- e ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
i&&qbZt }
5UOk)rOf }
"8HE^Po/pn s$GF 95^ 将当前页面中DataGrid1显示的数据全部删除
ET-Vm >] foreach(DataGridItem thisitem in DataGrid1.Items)
_-%d9@x {
jczq`yW if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
i03gX<=* {
t`u!]DHv string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
7'OPjtM Del (strloginid); //删除函数
H$tb;: }
5v9uHxy }
N9]xJgTze 4ht\&2&: 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)
uyT/Xzo3 Rp/-Pv
在Application_Start中添加以下代码:
-H\,2FO Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
O2 v. AppSettings["ConnStr"].ToString();
5pJ*1pfeo L~eAQR 31. 变量.ToString()
l1<?ONB.# t5)J;0/ 字符型转换 转为字符串
TyOH`5D 12345.ToString("n"); //生成 12,345.00
#DUh(:E'` 12345.ToString("C"); //生成 ¥12,345.00
|C D}<r(N
12345.ToString("e"); //生成 1.234500e+004
_M5Xk? e= 12345.ToString("f4"); //生成 12345.0000
;|TT(P:d 12345.ToString("x"); //生成 3039 (16进制)
~NNv>5t5 12345.ToString("p"); //生成 1,234,500.00%
%+wF" hhmGv9P 32、变量.Substring(参数1,参数2);
2-v\3voN RH1uVdJ1 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);
7Fl-(Nv` "H1:0p 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)
W-D[z#)/Y <SCRIPT language="javascript">
kG^dqqn6 <!--
'msmXX@q function gook(pws)
>IY,be6>P {
yr{B5z, frm.submit();
2OalAY6RS }
J#7y<
s //-->
@!\K>G >9[ -0 0}if7 </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
!kXeO6X@m <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
G9RP^ <tr>
IKcKRw/O$ <td>
;fGx;D <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
U)[ty@zyF <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
y $V[_TN <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
2jA%[L9d^ ]US[5)EL- <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
%;O}FyP <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
/ L~u02?
}B ff,q </td>
U8O(;+ G$5m$\K </tr>
]W)
jmw'mo \+Y!ILOI </form>
GDPo`#~ FFe)e>bH 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。
SLoo:) rAXX}"l6s 下面是获取用户输入的登陆信息的代码:
|Td5l? string name;
6fwY$K\X name=Request.QueryString["EmailName"];
h^M^7S Coa -8j*R7 try
Q2\ {
j>'B[ int a=name.IndexOf("@",0,name.Length);
;[6&0!N\ f_user.Value=name.Substring(0,a);
@E_zR f_domain.Value=name.Substring(a+1,name.Length-(a+1));
7ZFJexN] f_pass.Value=Request.QueryString["Psw"];
P(h5=0`*PR }
+R[4\ hC0Y }*kJ-q&0 catch
8D~x\!(p\ {
BUC,M:J+H Script.Alert("错误的邮箱!");
RP`
`mI Server.Transfer("index.aspx");
T[.[
g/` }