1. 打开新的窗口并传送参数:
`8bp6}OD, 5h7DVr! 传送参数:
3A1kH` X^q response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
Mxp4 YQl x G"p. 接收参数:
NdQ?3'WJ string a = Request.QueryString("id");
jC8BLyGE_ string b = Request.QueryString("id1");
raZRa*C; yiA\$mtO 2.为按钮添加对话框
En_8H[<% Button1.Attributes.Add("onclick","return confirm(’确认?’)");
Z|wDM^Lf button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
IT33E%G NU*6iLIq|F 3.删除表格选定记录
]g!<5w int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
V1qHl5" string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
<v^.FxId -e\kIK
% 4.删除表格记录警告
~WLsqP5Y~a private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
U]3JCZ{]0E {
Bv*h?`Q switch(e.Item.ItemType)
\hc9Rk {
Wm_-T]#_ case ListItemType.Item :
^O"`.2O1 case ListItemType.AlternatingItem :
2yc\A3ft# case ListItemType.EditItem:
'|r!yAO6 TableCell myTableCell;
']Y:gmM" myTableCell = e.Item.Cells[14];
UG$i5PV%i LinkButton myDeleteButton ;
:9qB{rLi} myDeleteButton = (LinkButton)myTableCell.Controls[0];
v1rGq myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
}N!8i'suz9 break;
@L7rE)AU. default:
*E6 p= break;
Bqj*{m }
G;+0V0K r?7^@ }
O-Y E6u @#">~P|Hp 5.点击表格行链接另一页
XA%?35v~ private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
!4fL|0 {
YJ`>&AJ //点击表格打开
|Dli6KN if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
LYv2ll`XP e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
kXRD_B5& }
JH9CN =p:6u_@XWj 双击表格连接到另一页
Hu.d^@V =!aV?kNS8 在itemDataBind事件中
8a1{x(\z. if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
1' s^W {
i^Q^F string OrderItemID =e.item.cells[1].Text;
cl5 :|) ...
<L0_<T e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
iLei-\w6y }
vzPrG%Uu7g -K4RQ{=>UZ 双击表格打开新一页
"
8v if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
+bU(-yRy5o {
YTsn;3d]} string OrderItemID =e.item.cells[1].Text;
V#Eq74ic ...
aqgSr| e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
[;+YO) }
EY(4<;) NKN!X/P ★特别注意:【?id=】 处不能为 【?id =】
Ns{4BM6j 6.表格超连接列传递参数
4BX*-t <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
IFe[3mB5 <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
-#h
\8Xl eS M!_2 7.表格点击改变颜色
n$9!G if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
kQtl&{;k? {
F u)7J4Z e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
J<D =\ this.style.color=’buttontext’;this.style.cursor=’default’;");
iFnM6O$( }
yuWrU<Kw bK7DGw`1 写在DataGrid的_ItemDataBound里
8cl!8gfv if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
}z6HxB]$ {
Y|bGd_j e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
F{S.f1Bsp this.style.color=’buttontext’;this.style.cursor=’default’;");
p*G_$"KpP e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
z> SCv;Q }
=Vfj#WL )U?W+0[= ~ i,my31 8.关于日期格式
[iz TzjZGs W[V 日期格式设定
l1msXBC DataFormatString="{0:yyyy-MM-dd}"
'=5N?) ]T1"3
[si 我觉得应该在itembound事件中
$vd._j& e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
a&JAF?k 0nX5
$Kn 9.获取错误信息并到指定页面
%"tf`,d~3 gxiJ`.D= 不要使用Response.Redirect,而应该使用Server.Transfer
2]l*{l^ Bl v%r! }s e.g
f/xBR"' // in global.asax
|?8wyP protected void Application_Error(Object sender, EventArgs e) {
Oc1ZIIkh\ if (Server.GetLastError() is HttpUnhandledException)
BC^WPr Server.Transfer("MyErrorPage.aspx");
lsd\ `X5, ?hO*~w;UU| //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
-HOCxR }
^gy(~u BFY~::<b Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
K)n( U9# iw%DQ }$ 10.清空Cookie
mcvTz, ;= Cookie.Expires=[DateTime];
5:6mptn> Response.Cookies("UserName").Expires = 0
wI:oe`?H =1D*K% 11.自定义异常处理
x&sF_<[ //自定义异常处理类
z&eJ?wb using System;
6*%lnd+_ using System.Diagnostics;
,v/C-b)I 7}xKiHh: namespace MyAppException
?r/7: {
Z@>>ZS1Do /// <summary>
;9rQN3J$gn /// 从系统异常类ApplicationException继承的应用程序异常处理类。
E:7vm@+ /// 自动将异常内容记录到Windows NT/2000的应用程序日志
i^=an?}/ /// </summary>
%j'lWwi public class AppException:System.ApplicationException
r`5;G4UI {
i"r=b%;; public AppException()
:x_l"y" {
]M_)f if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
$.`(2 }
ar{Yq 8F%TZM public AppException(string message)
0KEytm] {
Dq\#:NnKvx LogEvent(message);
m^`X|xK- }
n^'{{@&(v X,~8) W public AppException(string message,Exception innerException)
!
$n^Ze2 ! {
y`'Ly@s LogEvent(message);
f}*Xz.[bCp if (innerException != null)
l_DPlY {
UF}fmDi LogEvent(innerException.Message);
KExfa4W 3{ }
rq$% }
A+?n=IHh =uD2j9!"7 //日志记录类
`OduBUI]] using System;
B^eea [ using System.Configuration;
E]Kd`&^} using System.Diagnostics;
7/Ew(X8Fs using System.IO;
Oyz=|[^,W using System.Text;
fE7Kv_N-% using System.Threading;
^E>}A _w)0r}{ namespace MyEventLog
%R(j|a9z {
x`a@h\n /// <summary>
LM0TSB? /// 事件日志记录类,提供事件日志记录支持
y![h /// <remarks>
594$X@!v /// 定义了4个日志记录方法 (error, warning, info, trace)
6Bs_"
P[ /// </remarks>
1w?X~VZAX /// </summary>
dBCg$Rud& public class ApplicationLog
(Iu5QLE {
wtMS<$ /// <summary>
}**^g: /// 将错误信息记录到Win2000/NT事件日志中
5JQq?e)n /// <param name="message">需要记录的文本信息</param>
=n%?oLg^ /// </summary>
3"%:S_[ public static void WriteError(String message)
~KEnZa0 {
r)ga{Nn,. WriteLog(TraceLevel.Error, message);
owQLAV }
4ajBMgD]KG dDAdZxd /// <summary>
%J3#4gG^v /// 将警告信息记录到Win2000/NT事件日志中
Xo }w$q5 /// <param name="message">需要记录的文本信息</param>
9NKZE?5P|D /// </summary>
wHdq :,0-! public static void WriteWarning(String message)
wXfy,W {
lYU_uFOs\ WriteLog(TraceLevel.Warning, message);
n6
) }
d7P|
x (iH5F9WO /// <summary>
$O7>E!uVD /// 将提示信息记录到Win2000/NT事件日志中
(]'4_~e /// <param name="message">需要记录的文本信息</param>
O]i}r`E8, /// </summary>
%5jxq9:K public static void WriteInfo(String message)
Ci=c"JdB {
/\h&t6B1 WriteLog(TraceLevel.Info, message);
2i8'*L+j }
2=u5N[* /// <summary>
QfRt3\^` /// 将跟踪信息记录到Win2000/NT事件日志中
i7:j(W^I8 /// <param name="message">需要记录的文本信息</param>
O3B\K <l /// </summary>
D6c4tA^EO public static void WriteTrace(String message)
5zfPh`U>1 {
rQ.j$U WriteLog(TraceLevel.Verbose, message);
c7'I'~ }
P7<~S8)Y !)KX?i[Q /// <summary>
M {_`X /// 格式化记录到事件日志的文本信息格式
b'uH4[zX% /// <param name="ex">需要格式化的异常对象</param>
n+j'FfSz /// <param name="catchInfo">异常信息标题字符串.</param>
=@&]PYv /// <retvalue>
O>)8< yi$ /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
8x[q[ /// </retvalue>
jcv3ES^ /// </summary>
.u)Po;e` public static String FormatException(Exception ex, String catchInfo)
VI[ikNpX {
-i7W|X" StringBuilder strBuilder = new StringBuilder();
!SKEL6~7
if (catchInfo != String.Empty)
qtD3<iWV {
eB^:+h#A_ strBuilder.Append(catchInfo).Append("\r\n");
@y{Whun~ }
xsV(xk4 strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
kT!FC0E{ return strBuilder.ToString();
r68'DJ&m3 }
.pr- ^ ?UQE;0 B /// <summary>
J*A<F'^F1 /// 实际事件日志写入方法
SPn0D9b] /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
]7fqVOiOu /// <param name="messageText">要记录的文本.</param>
O83vPK
3 /// </summary>
`4gm'C private static void WriteLog(TraceLevel level, String messageText)
n\ZDI+X {
r[JgCj+$& try
*GTCVxu {
/t(dhz&xN EventLogEntryType LogEntryType;
a$l/N{<. switch (level)
$:t;WXc.< {
)1Z*kY?f! case TraceLevel.Error:
N? ky2wG LogEntryType = EventLogEntryType.Error;
pEw &i break;
xmT(yv, case TraceLevel.Warning:
Ud\Jc:DG LogEntryType = EventLogEntryType.Warning;
WpWnwQY`# break;
w f,7 case TraceLevel.Info:
eICk}gfun LogEntryType = EventLogEntryType.Information;
NUX0=(k break;
#xNLr case TraceLevel.Verbose:
ZS4lb=)G LogEntryType = EventLogEntryType.SuccessAudit;
{ P&l` break;
LTm2B_+ default:
AN\: LogEntryType = EventLogEntryType.SuccessAudit;
'&xv)tno break;
K\`L>B. 1 }
mflH &Bx9 !/BXMj,= EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
ezY
_7 //写入事件日志
"'~'xaU!=a eventLog.WriteEntry(messageText, LogEntryType);
JD^(L~ n] '@3hU|jO! }
Q!(C$&f catch {} //忽略任何异常
,9`sC8w| }
1aS[e%9Mg } //class ApplicationLog
Y\Odj~Mj }
2n2{Oy>L 1t
WKH 12.Panel 横向滚动,纵向自动扩展
^EPM~cEY\ <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
p%jl-CC1 7^A;.x 13.回车转换成Tab
`Jq
?+W <script language="javascript" for="document" event="onkeydown">
tq8B)<(] if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
O\,n;oj event.keyCode=9;
[u[F6Wst </script>
hCQzD2 /o*r[g7< onkeydown="if(event.keyCode==13) event.keyCode=9"
BHy#g>KUF 6HW<E~G'6 14.DataGrid超级连接列
`i<;5s!rX DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
loZJV M ?H#]+SpOcv 15.DataGrid行随鼠标变色
4/e-E^ private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
HW;,XzP= {
;X[mfg\ if (e.Item.ItemType!=ListItemType.Header)
/8VM.fr$ {
wyzj[PDS e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
Eb7qM.Q] & e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
l 4I@6@ }
ZTfs&5 }
D0Oh,Fe#M\ <(TTYf8lS 16.模板列
> nDx)!I <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
^,]'Ut <ITEMTEMPLATE>
}nvHE o <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
,[71,zs </ITEMTEMPLATE>
,a9<\bd) </ASP:TEMPLATECOLUMN>
Vv~rgNh ,^3eMn <ASP:TEMPLATECOLUMN headertext="选中">
{s6;6>-kPW <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
Iw(deD <ITEMTEMPLATE>
[cv7s=U% <ASP:CHECKBOX id="chkExport" runat="server" />
(%ra~s? </ITEMTEMPLATE>
[ Lt1OdGl <EDITITEMTEMPLATE>
.iNPLz1 <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
8zP{Cmm </EDITITEMTEMPLATE>
vz</|s </ASP:TEMPLATECOLUMN>
O4ciD1 B @H.O! 后台代码
, |CT|2D> protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
rR@ t5 {
,F`:4=H% //改变列的选定,实现全选或全不选。
D642}VD CheckBox chkExport ;
In#V1[io if( CheckAll.Checked)
W'hE, {
zM%ILv4 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
Wky=]C% {
=W"BfG chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
DBYD>UA chkExport.Checked = true;
TMj(y{2 }
]X?~Cz/wl }
^} P|L else
2s_shY<=}L {
2cY7sE068 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
TK<~(Dk {
dPwe.: chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
3
[: x#r chkExport.Checked = false;
2T3v^%%j }
{|c
<8 }
|v#N }
!Sx}~XB< }2:/&H' 17.数字格式化
S^?
@vj /PH+K24v~ 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
; {$9Sc $ <%#Container.DataItem("price","{0:¥#,##0.00}")%>
SUsD)!u_H +h_'hz&HlS int i=123456;
kFZw"5hb string s=i.ToString("###,###.00");
PXof-W h4N!zj[ 18.日期格式化
o65:)z
u Wly-z$\ 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
mO;X>~K t<mT=(zt* 显示为: 2004-8-11 19:44:28
t$^1A1Ef Z[<rz6%cB 我只想要:2004-8-11 】
,rVm81-2 <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
xq+$Q:f -bJht 应该如何改?
Vb*q^
v c-.t8X,5(~ 【格式化日期】
rK)aR 2j&-3W$^ 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
e@"1W FZ'|z8Dm 【日期的验证表达式】
<ek_n;R *jM~VTXwt A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
z6 2gF|Uj ^((\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})))?$
E,&BP$B zim]3%b*A; B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
^Lr)STh ^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$
~9c?g(0 *@[DG)N 【大小写转换】
"W$,dWF HttpUtility.HtmlEncode(string);
fx(^}e HttpUtility.HtmlDecode(string)
=$;i 6<jh0=$ 19.如何设定全局变量
l&2A]5C 5RCQ<1 Global.asax中
c'B6E1}sx v1%rlP Application_Start()事件中
58)`1p\c' M>^Ho2 添加Application[属性名] = xxx;
{)nm
{IV, <cm,U)j2 就是你的全局变量
a]XQM$T$ LDqq'}qK6 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
m|!R/,>S4 &m2FEQLj HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
}mQ7N&cC ]ZKmf}A)1P 【ASPNETMENU】点击菜单项弹出新窗口
ZRN*. Hf!o6 o 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
Hv2t_QjKT <?xml version="1.0" encoding="GB2312"?>
T^.;yU_B? <MenuData ImagesBaseURL="images/">
Lsa&A+fru <MenuGroup>
+InAK>NZ' <MenuItem Label="内参信息" URL="Infomation.aspx" >
x
LR
2H>B} <MenuGroup ID="BBC">
Ex2TV7I <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
<+@?V$& <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
9SF2 ......
l]D?S]{a Lh.?G#E M 最好将你的aspnetmenu升级到1.2版
0;
GnR 0 V)#se"GV 21.读取DataGrid控件TextBox值
OCmF/B_ foreach(DataGrid dgi in yourDataGrid.Items)
2>BWu {
$/^DY& TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
):HjpJvF tb.Text....
)jkX&7x }
nI4Kuz`dF jf25Ky~ 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
SXkUtY$ &5>R>rnB 〖思归〗
tUouO0_l <asp:TemplateColumn HeaderText="数量">
MTJ ."e<B <ItemTemplate>
a9S0glbwf <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
L1=+x^WQ onkeyup="javascript:DoCal()"
3aIP^I1 />
IsjxD|u h8@8Qw <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
b|mWEB.p </ItemTemplate>
d 7vD </asp:TemplateColumn>
F:nhSd ^<X+t&!z <asp:TemplateColumn HeaderText="单价">
0kxo <ItemTemplate>
(B|4wR\ <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
JGQlx-qv onkeyup="javascript:DoCal()"
M#o.$+Uh />
ZC}'! $r7 S o>P)d$8+ <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
ny# ?^.1 *J[3f]PBmR </ItemTemplate>
}uWIF|h~ </asp:TemplateColumn>
*Ju$A WJH-~,u <asp:TemplateColumn HeaderText="金额">
x'IVP[xh`A <ItemTemplate>
GJ YXCi <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
g '2'K </ItemTemplate>
6*yt^[W </asp:TemplateColumn><script language="javascript">
!RX\">z function DoCal()
9G njJ {
QTZfe<m0 var e = event.srcElement;
{OFbU var row = e.parentNode.parentNode;
Ky"]L~8$ var txts = row.all.tags("INPUT");
qKoD*cl)Za if (!txts.length || txts.length < 3)
'a ]4]d return;
CjtBQ5 }dnO7K var q = txts[txts.length-3].value;
I*,!zym var p = txts[txts.length-2].value;
)qXl8H I 8MUY if (isNaN(q) || isNaN(p))
"},0Cs return;
[C1.*Q+l J<K-Yeph q = parseInt(q);
jUny&Alj p = parseFloat(p);
Hn~=O8/2 TL^af- txts[txts.length-1].value = (q * p).toFixed(2);
k^A17Nf`2 }
F_28q15~: </script>
"ecG\}R= i%~^3/K -P I$SA, KDx~^OO rByC6HV" 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
cJb.@8^J page_load
c?@WNv page.smartNavigation=true
82w;}(! E0F8FR' 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
:.;pRz private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
PwF
1Pr`r {
(~C_zG for(int i=0;i<e.Item.Cells.Count-1;i++)
\BIa:}9O if(e.Item.ItemType==ListItemType.EditType)
d4y?2p ?3 {
FG-v71!h# e.Item.Cells.Attributes.Add("Width", "80px")
@UbH;m }
VL^.7U }
\0}!qG![AA Y}db<Cz
X 26.对话框
zDEX `~c private static string ScriptBegin = "<script language=\"JavaScript\">";
=bn(9Gm!J private static string ScriptEnd = "</script>";
5AX
AIP n) _G$SA-W( public static void ConfirmMessageBox(string PageTarget,string Content)
G~$.Af!9W {
HC%tJ:G string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
cr}T ? $\K Z%h _g-C ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
'VgdQp$L$ ,r=9$i_ Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
:v=^-&t ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
iD;pXE{2s% //Response.Write(strScript);
S5Hb9m&& }
h=:*cqp4 :htz] 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
x,U'!F 0_!')+ 1.1 取当前年月日时分秒
2sezZeMV currentTime=System.DateTime.Now;
Ry$zF~[ we4k VAn 1.2 取当前年
GJu[af int 年= DateTime.Now.Year;
uX.^zg]}% e8WuAI86 1.3 取当前月
b"Z$?5 int 月= DateTime.Now.Month;
RA%=_wPD
+ UN
FQ`L 1.4 取当前日
4AIo,{( int 日= DateTime.Now.Day;
w^AY= Fc $nkvp`A 1.5 取当前时
_H,xnh#nZ int 时= DateTime.Now.Hour;
Yk;-]qi7 jOkc' 1.6 取当前分
,A$#gLyk< int 分= DateTime.Now.Minute;
J?oI%r7^ w5C$39e\G 1.7 取当前秒
m;_gNh8 Ee int 秒= DateTime.Now.Second;
\
oY/hT _ ~wtK(U 1.8 取当前毫秒
cEdf&*_-'I int 毫秒= DateTime.Now.Millisecond;
wZ(H[be (G>S`B 28.自定义分页代码:
s6U$]9 ` lQ8h -Tz 先定义变量 :
h_( #U)z_3 public static int pageCount; //总页面数
/?ZO-]q public static int curPageIndex=1; //当前页面
B4D#TlB Oc6_x46S4 下一页:
YaBZ#$r if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
EJCf[#Sf {
Kl'u DataGrid1.CurrentPageIndex += 1;
65HP9`5Tm curPageIndex+=1;
Z!/!4(Fh }
VRb+-T7" J1s~w`, bind(); // DataGrid1数据绑定函数
EbfE/_I 1*aO2dOq 上一页:
B~CdY}UTsj if(DataGrid1.CurrentPageIndex >0)
& t.G4 {
5[[mS DataGrid1.CurrentPageIndex += 1;
]ZMFK>"^% curPageIndex-=1;
hfJeVT-/v }
8opd0'SNaB mTj?W$+r bind(); // DataGrid1数据绑定函数
|3bCq(ZR\P %W(/W9B$/F 直接页面跳转:
f@j )t%mh int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
? PI2X.6 O x),jc[/ if(a<DataGrid1.PageCount)
n9 %&HDl4 {
4:I'zR5 this.DataGrid1.CurrentPageIndex=a;
0Ym_l?]m[ }
{f(RY j F"ua`ercI bind();
q:/3uC7
lz [s 29.DataGrid使用:
{@&%Bq*& A<U9$"j9J 添加删除确认:
&)$}Nk private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
obz|*1M? {
ubQbEv{(, foreach(DataGridItem di in this.DataGrid1.Items)
m<e_Z~ ^G {
~PtIq.BY if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
@2;/-,4O {
$<s;YhM:u) ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
JQ%D6b }
7C>5XyyJ }
L)z` }
u85dG7 cuoZ:Wh 样式交替:
6ec#3~ Y] ListItemType itemType = e.Item.ItemType;
>]}c,4D( 1PUeU+ if (itemType == ListItemType.Item )
i",7<01 {
8W2oGL6 e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
/wX5>^ e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
3JFX~"rV9I }
XCd[<\l else if( itemType == ListItemType.AlternatingItem)
TY`t3 {
E;bv;RUio e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
u Wxl\+_i e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
p9-s' F|@i }
rQsYt/ eUVhNg 添加一个编号列:
63fgl+ DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
)Y &RMYy DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
I /z`) GO]5~4k for(int i=0;i<dt.Rows.Count;i++)
5Ly Wg2 {
v+vM:At4 dt.Rows["number"]=(i+1).ToString();
ku5vaP( }
X.GK5Phd _J X>#h DataGrid1.DataSource=dt;
`{1~]?-& DataGrid1.DataBind();
@q"HZO[ Ih<.2 DataGrid1中添加一个CheckBox,页面中添加一个全选框
_$P1N^}Zs private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
0^83:C
^{ {
\h@3dJ4 foreach(DataGridItem thisitem in DataGrid1.Items)
O?$]/d {
?Q~o<%U7 ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
IAi|4,y_L }
/@?lV!QiO }
[.'9Sw Z</57w#-7 将当前页面中DataGrid1显示的数据全部删除
ugzrG0=lx foreach(DataGridItem thisitem in DataGrid1.Items)
}u]7 x:lh {
d:#z{V_ if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
P?hB`5X {
V~sfR^FQ' string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
57Bxx__S4` Del (strloginid); //删除函数
fb8)jd'~}O }
J,*+Ak
~ }
ZkryoIQ%= tz9"#=}0 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
V-9\@'gc )%09j0y>l" 在Application_Start中添加以下代码:
o]DYS,v Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
@~bP| a AppSettings["ConnStr"].ToString();
xEg@Y"NQ DMA`Jx 31. 变量.ToString()
{ u3giB Z~]G+( 字符型转换 转为字符串
X<Ag['r 12345.ToString("n"); //生成 12,345.00
^/I.? :+ 12345.ToString("C"); //生成 ¥12,345.00
E:y^= Y 12345.ToString("e"); //生成 1.234500e+004
8?1MnjhX10 12345.ToString("f4"); //生成 12345.0000
W[:CCCDL 12345.ToString("x"); //生成 3039 (16进制)
05Q4$P 12345.ToString("p"); //生成 1,234,500.00%
I)MRAo ft1V1 c 32、变量.Substring(参数1,参数2);
io UO0 w:ASB>,! 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);
48Jt1^ 2U3e!V 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)
sB5@6[VDI <SCRIPT language="javascript">
&