1. 打开新的窗口并传送参数:
y akRKiz\ `B"sy8}x 传送参数:
BFw_T3}zn response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
$365VTh" aL[6}U0 (} 接收参数:
w!H(zjv&( string a = Request.QueryString("id");
{|>Wwa2e string b = Request.QueryString("id1");
O!nS3%De \8$~ i 2.为按钮添加对话框
^?H|RAp Button1.Attributes.Add("onclick","return confirm(’确认?’)");
2#:p:R8I> button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
m-azd~r[ d/yF}%0QI 3.删除表格选定记录
=q]!"yU[d int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
vTx>z\7q, string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
?-:2f#bC @kh<b<a4 4.删除表格记录警告
xE@/8h private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
sw}O g`U {
(o IGp switch(e.Item.ItemType)
aR6F%7gvz {
CnL=s6XD' case ListItemType.Item :
=MQ/z#:-P case ListItemType.AlternatingItem :
HdxP:s.T case ListItemType.EditItem:
\X&8EW TableCell myTableCell;
C^LxuUW myTableCell = e.Item.Cells[14];
=[]6NjKS, LinkButton myDeleteButton ;
K [DpH& myDeleteButton = (LinkButton)myTableCell.Controls[0];
u*Xp%vNe myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
Gu~*ZKyJ break;
~x8nC%qPvq default:
p"
>*WQ break;
G*+^b'7 }
) %Fwfb <7Pp98si,u }
NCkI[d]B@ 3:nBl?G< 5.点击表格行链接另一页
PhC3F4 private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
A/<u>cCW {
V_gKl;Kfe8 //点击表格打开
`5@F'tKQ if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
e9[72V e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
@p*)^D6E\ }
GAgTy b`-|7<s 双击表格连接到另一页
*z VN6wG{ &t9V 在itemDataBind事件中
~)ys,Q if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
oVy{~D= {
pc*)^S string OrderItemID =e.item.cells[1].Text;
Ldjz- ...
bOj)Wu e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
7tcadXk0 }
k B>F(^ d{4;qM# 双击表格打开新一页
aL;!BlU8v if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
Vbl-Ff {
*(Dmd$|0| string OrderItemID =e.item.cells[1].Text;
DRQx5fgL ...
Kb?{^\FiU e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
Lg7A[\c
~ }
uMg\s\Z \2s`mCY ★特别注意:【?id=】 处不能为 【?id =】
bGWfMu=n 6.表格超连接列传递参数
Eu?z! <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
f(5(V
% <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
lDYgtUKG i
6G40!G=) 7.表格点击改变颜色
8v;^jo>ug if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
>Wr%usNxc {
NGc~%0n e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
`}PYltW this.style.color=’buttontext’;this.style.cursor=’default’;");
r9@=d }
O]u'7nO{{ ]P?<2, 写在DataGrid的_ItemDataBound里
X.t4; if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
SB\%"nnV {
~29p|X< e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
D!&(#Vl
_ this.style.color=’buttontext’;this.style.cursor=’default’;");
! K>iSF< e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
Uq
.6h }
[r/zBF-. @gI1:-chB (9'^T.J 8.关于日期格式
cszvt2BIg E8#
>k 日期格式设定
,S-h~x DataFormatString="{0:yyyy-MM-dd}"
9-ozrw8t 'h*jL@%TT 我觉得应该在itembound事件中
fW-C`x e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
"}]$ag!`q$ jo`ZuN{ 9.获取错误信息并到指定页面
g":[rXvId M5^Y
W#e 不要使用Response.Redirect,而应该使用Server.Transfer
Q7s@,c!m_ cSb;a\el$ e.g
[qYr~:` -[ // in global.asax
i>F=XE protected void Application_Error(Object sender, EventArgs e) {
XIW0Z C if (Server.GetLastError() is HttpUnhandledException)
xe`^)2z Server.Transfer("MyErrorPage.aspx");
W:]FYC ]O@$}B];) //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
,;)ZF }
9njl,Q: "`vRHeCKN 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
*G19fJ[5 g*Y,. 10.清空Cookie
f`9Mcli! Cookie.Expires=[DateTime];
7GgZ: $d Response.Cookies("UserName").Expires = 0
/DYyl/ Z>rY9VvWD 11.自定义异常处理
%M(RV_R+6 //自定义异常处理类
D|;O9iks# using System;
U&5*>fd= using System.Diagnostics;
4<efj u!_l/'\ namespace MyAppException
-pC8 L< {
~3&{`9Y /// <summary>
(`P\nnb /// 从系统异常类ApplicationException继承的应用程序异常处理类。
ym%UuC3^w /// 自动将异常内容记录到Windows NT/2000的应用程序日志
TktH28tK /// </summary>
2QfN.<[- public class AppException:System.ApplicationException
G=zWhqieh {
u^80NR public AppException()
k:@DK9
"^ {
'Uok<; if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
{MUB4-@?F$ }
W'lqNOX[v D Ez,u^ public AppException(string message)
d$dy6{/YD {
%`Re{%1; LogEvent(message);
Wa_qD }
JAPr[O& {z#2gc'Q public AppException(string message,Exception innerException)
2eT?qCxqc {
A4K.,bZ LogEvent(message);
wX$:NOO if (innerException != null)
{T){!UVp! {
I2cz:U7 LogEvent(innerException.Message);
'rQ"Dc1D }
(\V
i_ }
PnlI {d 'M90Yia //日志记录类
;JW_4;- using System;
c8RJOc4X using System.Configuration;
$vO&C6m$ using System.Diagnostics;
%u -x9 using System.IO;
f8
d
3ZK using System.Text;
~Bd=]a$mj using System.Threading;
*{o7G a !3v&+Jrf6 namespace MyEventLog
Yo-}uTkw {
6%D9;-N) /// <summary>
D:)Wr, 26 /// 事件日志记录类,提供事件日志记录支持
pl[J!d.c /// <remarks>
H=r-f@EOrI /// 定义了4个日志记录方法 (error, warning, info, trace)
y4V:)@P /// </remarks>
Z 6jEj9?O /// </summary>
Ia&R/I public class ApplicationLog
$Y$9]G": {
~6vz2DuB= /// <summary>
+2tQFV; /// 将错误信息记录到Win2000/NT事件日志中
3>,}N9P-v /// <param name="message">需要记录的文本信息</param>
f)I5=Ijy( /// </summary>
%|Ps|iV public static void WriteError(String message)
`]Bb0h1![ {
>.h:Y5 WriteLog(TraceLevel.Error, message);
W&z jb>0b0 }
jm_-f v
gN!9 /// <summary>
(FuIOR /// 将警告信息记录到Win2000/NT事件日志中
0lw>mxN /// <param name="message">需要记录的文本信息</param>
_IH" SVub /// </summary>
c:[k+_Zr public static void WriteWarning(String message)
t [QD#; {
@hLkU4S WriteLog(TraceLevel.Warning, message);
FLZ9pb[T }
2*Z2uV^ ?Ua,ba* /// <summary>
xNz(LZ.c /// 将提示信息记录到Win2000/NT事件日志中
f60w% /// <param name="message">需要记录的文本信息</param>
Qm%F]nyy /// </summary>
#6sz@X fV public static void WriteInfo(String message)
18g_v"6o {
Sb.8d]DW WriteLog(TraceLevel.Info, message);
!,4ag1 }
J3$>~?^1 /// <summary>
[^H2'&] /// 将跟踪信息记录到Win2000/NT事件日志中
!^J;S%MB:K /// <param name="message">需要记录的文本信息</param>
f~IJ4T2#N /// </summary>
<,d550GSm public static void WriteTrace(String message)
^:nc'C gP {
K g@'mG WriteLog(TraceLevel.Verbose, message);
*MF9_V)8V }
vSzpx OG\i?N /// <summary>
gY}In+S /// 格式化记录到事件日志的文本信息格式
?vXgHDs^T /// <param name="ex">需要格式化的异常对象</param>
Q=~"xB8 /// <param name="catchInfo">异常信息标题字符串.</param>
x`CjFaE~F /// <retvalue>
s.3"2waZ=T /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
MqmQ52HR /// </retvalue>
_k84#E0 /// </summary>
sEhvx+( public static String FormatException(Exception ex, String catchInfo)
8f@}- {
~/OY1~c StringBuilder strBuilder = new StringBuilder();
'K[ml ?_ if (catchInfo != String.Empty)
G5ATR<0m {
y]9R#\P/ strBuilder.Append(catchInfo).Append("\r\n");
7vRtTP }
6F\ 6,E strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
3o.x<G( return strBuilder.ToString();
Xr*I`BJ }
K7}.# *% ~ *_V+K /// <summary>
9#8vPjXW}. /// 实际事件日志写入方法
{DO 9%ej) /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
(qn=BPI /// <param name="messageText">要记录的文本.</param>
8P I%Z6 /// </summary>
/A_:`MAZ private static void WriteLog(TraceLevel level, String messageText)
*A-_*A {
A U~DbU0O try
CS^6$VL7e {
U-|]A\`)I EventLogEntryType LogEntryType;
%9-^,og switch (level)
Rv1W &s& {
MU<(O} case TraceLevel.Error:
l4C{LZ LogEntryType = EventLogEntryType.Error;
}YwaN'3p! break;
$]7f1U_e case TraceLevel.Warning:
=m.Nm -g LogEntryType = EventLogEntryType.Warning;
ax@H^Gj@2 break;
wMS%/l0p1 case TraceLevel.Info:
ay"jWL- LogEntryType = EventLogEntryType.Information;
.?}M(mL break;
fit{n]g case TraceLevel.Verbose:
zs$r>rlO LogEntryType = EventLogEntryType.SuccessAudit;
<q63?Ms' break;
`_/bg(E default:
_^ hg7&dF LogEntryType = EventLogEntryType.SuccessAudit;
=VC18yA break;
SYJO3cY }
7q0_lEh xGs}hVlZiC EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
OqtGKda //写入事件日志
i)#-VOhX) eventLog.WriteEntry(messageText, LogEntryType);
0X)vr~` Y ^^4n$ }
b{0a/&&1O catch {} //忽略任何异常
c4z&HQd }
jY6GWsh:9 } //class ApplicationLog
Eq-+g1a }
pBtO1x6x/ 4`O[U#? 12.Panel 横向滚动,纵向自动扩展
WD5J2EePT <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
<83Ky;ry Vr2A7kq 13.回车转换成Tab
o30C\ <script language="javascript" for="document" event="onkeydown">
u(vZOf]jL if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
xG!~TQ event.keyCode=9;
B=A!hXNa </script>
?Q:SVxzUd 77\+V 0cF onkeydown="if(event.keyCode==13) event.keyCode=9"
l";Yw]:^ FjCGD4x1N 14.DataGrid超级连接列
SZGR9/*^ DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
9'MGv*Ho ?/|Xie 15.DataGrid行随鼠标变色
Sk{skvd; private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
@a9.s {
^ZMbJe%L if (e.Item.ItemType!=ListItemType.Header)
4t*%( {
ebA95v`Vms e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
IuY9Q8 e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
nDnJ}`k }
h$5[04.Q }
|z)s9B;:#i $;5Q
mKQ' 16.模板列
c64^u9 <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
1ksFxpE <ITEMTEMPLATE>
HOx4FXPs <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
#mV2VIX#Jv </ITEMTEMPLATE>
q>_<\|?%x </ASP:TEMPLATECOLUMN>
Zn9tG:V Pd7\Q]of <ASP:TEMPLATECOLUMN headertext="选中">
Vh~hfj" <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
4iA F<|6s <ITEMTEMPLATE>
NP;W=A F <ASP:CHECKBOX id="chkExport" runat="server" />
?^VPO% </ITEMTEMPLATE>
g8O6
b <EDITITEMTEMPLATE>
5G355 ,}E <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
||hQ*X<m> </EDITITEMTEMPLATE>
40?RiwwD </ASP:TEMPLATECOLUMN>
_(-jk4 L }AS?q?4? 后台代码
h0<PQZJ protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
M\{n+r-m {
\%<M[r= //改变列的选定,实现全选或全不选。
6f +aGz CheckBox chkExport ;
r
w!jmvHE& if( CheckAll.Checked)
y,5qY}P+ {
;VE y{%nF foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
1<ag=D`F_" {
%,bD|
NKp chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
d?7?tL2 chkExport.Checked = true;
3}nk9S:jr }
{R_>KE1 }
@HS*%N"* else
f\_RW;y|m {
r *K foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
ZA="Dac {
?Ek)" l chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
~
*&\5rPb chkExport.Checked = false;
CNN9a7 }
&vrQ *jX }
CY o
m }
os5$( B[L m}B[ 17.数字格式化
I/7!5Z* necY/&Ld- 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
,)`_?^\$f <%#Container.DataItem("price","{0:¥#,##0.00}")%>
z>PVv)X *
BM|luYL int i=123456;
k o@ej^ string s=i.ToString("###,###.00");
J];Sj /1EAj 18.日期格式化
tz):$1X_ h:fiUCw 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
"VZ1LVI TipH} 显示为: 2004-8-11 19:44:28
'OnfU{Ai %"`p&aE: 我只想要:2004-8-11 】
yX!fj\R <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
:^y!z1\2(7 =7V4{|ESfy 应该如何改?
ebze_: )=f}vHg$ 【格式化日期】
Hf('BagBL 3l=q@72 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
Aits<0 o^epXIrIPi 【日期的验证表达式】
R%.`h H?"M&mF A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
[+o{0o> ^((\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})))?$
PMP{|yEx" %gmx47 B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
g!^N#o ^\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]))$
;
$rQ 7RT{RE 【大小写转换】
0$|VkMq( HttpUtility.HtmlEncode(string);
[#GBn0BG) HttpUtility.HtmlDecode(string)
M@TG7M7Os qlcd[Y*B 19.如何设定全局变量
"]"0d[d I7vP*YE 7F Global.asax中
PzPNvV/o bkJ bnW= Application_Start()事件中
dSwfea_ .
Z&5TK4I 添加Application[属性名] = xxx;
~k34#j:J65 l-w4E"n3 就是你的全局变量
7=fM}sk |va@&;#wf 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
| +;ZC y $2Wk#F2c= HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
St?mq* , 4&NB xe 【ASPNETMENU】点击菜单项弹出新窗口
mywxV ?`TJ0("z" 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
S+06pj4Ie <?xml version="1.0" encoding="GB2312"?>
#w L(<nE <MenuData ImagesBaseURL="images/">
D&m1yl@\J <MenuGroup>
Lx-%y'P <MenuItem Label="内参信息" URL="Infomation.aspx" >
Sp[9vlo8 <MenuGroup ID="BBC">
v
Z10Rb8 <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
)[hs#nKTh <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
SsX$l<t* ......
>> cW0I/` 05ZYOs } 最好将你的aspnetmenu升级到1.2版
8GxT! Vc'p+e|( 21.读取DataGrid控件TextBox值
m@nGXl'! foreach(DataGrid dgi in yourDataGrid.Items)
UP-2{zb |? {
CH+%q+I TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
+]t9kr tb.Text....
0(&uH0x }
fXevr ` {$ N\@q@v~ 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?
C|}yE;*a r;f\^hVy 〖思归〗
&h[)nD <asp:TemplateColumn HeaderText="数量">
6Hc25NuQZ <ItemTemplate>
'
Sd&I:? <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
f~d=1 onkeyup="javascript:DoCal()"
P9\y~W />
e7G>'K ,S(_YS^m <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
#O^zA`D </ItemTemplate>
IwFf8?
3 </asp:TemplateColumn>
1slt[&4N 3!;o\bgK <asp:TemplateColumn HeaderText="单价">
;F_&h#D]3 <ItemTemplate>
s5 Fn("h]n <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
L%9yFg%u onkeyup="javascript:DoCal()"
|q o3
E />
$o\Uq \l6mXIn=> <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
UIQ=b;J9 b(ryk./ogx </ItemTemplate>
/C<} :R </asp:TemplateColumn>
Rx<[bohio zJ0'KHF}o <asp:TemplateColumn HeaderText="金额">
Q6Zh%\+h( <ItemTemplate>
HSl$ U0 <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
qfY=!|O </ItemTemplate>
Jf2:[Mq </asp:TemplateColumn><script language="javascript">
Q~*3Z4)j function DoCal()
L3Q1az!Ct {
yC=vTzzp var e = event.srcElement;
YpZ9h@, var row = e.parentNode.parentNode;
OaxE3bDT var txts = row.all.tags("INPUT");
`V ++})5v if (!txts.length || txts.length < 3)
.uagD[${ return;
0H.B>:pv 4sK|l|W var q = txts[txts.length-3].value;
7]9s_13] var p = txts[txts.length-2].value;
p|%Y\! d0Kg,HB if (isNaN(q) || isNaN(p))
s: q15" return;
u=
+ W%Zyt:H` q = parseInt(q);
4_I,wG@ p = parseFloat(p);
)@`w^\E_~_ TbU9
<mY txts[txts.length-1].value = (q * p).toFixed(2);
_5YL !v& }
#WpO9[b> </script>
Q}Vho.N@= C1rCKKh ?R{?Qv 't_=%^q 'Jl.fN 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
o-'i)pp page_load
zB]T5] page.smartNavigation=true
Tx_(^K >a-+7{}; 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
K;xW/7? private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
z=Vvb {
rqh,BkQ0t for(int i=0;i<e.Item.Cells.Count-1;i++)
Y@\5gZ&T if(e.Item.ItemType==ListItemType.EditType)
t@ JPnA7~ {
Pd;ClMa% e.Item.Cells.Attributes.Add("Width", "80px")
&lS0"`J= }
\+~4t }
I2DmM"-| @>:07]Dxo 26.对话框
ry]7$MQyV private static string ScriptBegin = "<script language=\"JavaScript\">";
6uXYZ.A private static string ScriptEnd = "</script>";
M>J ADt_] K]Cvk% public static void ConfirmMessageBox(string PageTarget,string Content)
k"7eHSy, {
G\p;
bUF string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
pOYtN1uN| enz Q}^ ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
2,;t%GB rWs5s!l, Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
kZ.3\ ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
|YFD| //Response.Write(strScript);
^Q,/C8qeb }
=5M>\vt] y&Hh8|'mC 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
V6{xX0'b*m ^aW[~ c 1.1 取当前年月日时分秒
fx-*') currentTime=System.DateTime.Now;
E\S&} K,s VT7NWTJ, 1.2 取当前年
7:<Ed"rdE int 年= DateTime.Now.Year;
`x VA]GR4c JrAc]= 1.3 取当前月
!v L:P2 int 月= DateTime.Now.Month;
G]1pGA; \8D~,$,``| 1.4 取当前日
~&:R\ int 日= DateTime.Now.Day;
fNJ;{ >[@d&28b% 1.5 取当前时
mD)O\.uA int 时= DateTime.Now.Hour;
<Y2!c,"
,GnU]f 1.6 取当前分
3pW
MS& int 分= DateTime.Now.Minute;
LeyDs>!0 F8Wq&X#r 1.7 取当前秒
_[o^23Hj int 秒= DateTime.Now.Second;
hob$eWgr 9Ol_z\5 1.8 取当前毫秒
J"%}t\Q int 毫秒= DateTime.Now.Millisecond;
yo,!u\^x Ds_
"m, 28.自定义分页代码:
n;`L5 HjS^
nYl 先定义变量 :
PZJ
4:h public static int pageCount; //总页面数
9 lJj/ public static int curPageIndex=1; //当前页面
E57{*C veg!mY2& 下一页:
3og$'#6P if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
m@u`$rOh {
b_Jq=Gk` DataGrid1.CurrentPageIndex += 1;
c| ( ? curPageIndex+=1;
>o#wP }
jY+S,lD h)^A3;2F bind(); // DataGrid1数据绑定函数
B~zg" lY*]&8/= 上一页:
1DtMY|wP if(DataGrid1.CurrentPageIndex >0)
89#0vG7m {
fbTw6Fde$ DataGrid1.CurrentPageIndex += 1;
l)*,18n curPageIndex-=1;
X/K)kIi }
M03i4R@h( 1J-Qh<Q bind(); // DataGrid1数据绑定函数
OHHNWg_5 5"kx}f2$ 直接页面跳转:
^$=tcoQG int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
.lvI8Jf~X MjQ[^%lfL if(a<DataGrid1.PageCount)
$AA~]'O>6: {
[arTx^ this.DataGrid1.CurrentPageIndex=a;
!f\?c7 }
KbwTj*k[ Bn~\HW\Lh bind();
egI{!bZg'\ X(GmiH /E 29.DataGrid使用:
/lLov. c Q(}^KO 添加删除确认:
9Qzjqq:"Li private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
*?_qE {
v)@,:u) foreach(DataGridItem di in this.DataGrid1.Items)
X~v4"|a {
I!fB1aq- if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
Kajkw>z {
0).fBBNG ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
X,RT<GNNb }
L!;^#g }
M`0(!Q} }
!}>eo2$r^ !uWxRpT,7 样式交替:
|Du,UY/ ListItemType itemType = e.Item.ItemType;
jrm0@K+<IA XVQL.A7 if (itemType == ListItemType.Item )
}FPM-M3y {
`nT?6gy e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
94Xjz( e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
DpA\r_D }
R{*_1cyW else if( itemType == ListItemType.AlternatingItem)
luW
<V> {
q}>M& * e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
c}\
'x5:o e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
a*Rz<08 }
AK6=Ydu #hIEEkCp + 添加一个编号列:
u\`/Nhn DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
F?7u~b|@{ DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
KzV.+f $zdd=.!KiK for(int i=0;i<dt.Rows.Count;i++)
t-_#Q bzE{ {
sNL+F dt.Rows["number"]=(i+1).ToString();
&a.']!$^" }
neF8V"-u& {`a(Tl8V DataGrid1.DataSource=dt;
sJU`u'w DataGrid1.DataBind();
gCJIIzl%Bh p!DP`Ouc3\ DataGrid1中添加一个CheckBox,页面中添加一个全选框
8:dQ._#v private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
rt}^4IqL {
7u|B ](FS foreach(DataGridItem thisitem in DataGrid1.Items)
|<c
WllN {
dYF=c ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
5k$vlC#[H }
].m qxf }
;dZMa]X0 >2lwWXA 将当前页面中DataGrid1显示的数据全部删除
Vte EDL/w foreach(DataGridItem thisitem in DataGrid1.Items)
&