1. 打开新的窗口并传送参数:
]bY]YNt{7] e,MsF4' 传送参数:
dRnf response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
T'@+MA) ~ 4=MjyH|[Jx 接收参数:
Z0m`%(MJa string a = Request.QueryString("id");
~~ rR< re string b = Request.QueryString("id1");
>3Q|k{97 % hvK;B?Y| 2.为按钮添加对话框
/:'>-253 Button1.Attributes.Add("onclick","return confirm(’确认?’)");
W ';X4e button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
kuV7nsXiQ 2R.LLE 3.删除表格选定记录
oSC'b% int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
=4a:)g' string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
%kjG[C ~~Ezt*lH 4.删除表格记录警告
+ovK~K$A private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
Cl]?qH*: {
gtZmBe= switch(e.Item.ItemType)
h%Nd89// {
}|Mwv
$` case ListItemType.Item :
O9(z"c case ListItemType.AlternatingItem :
;54NQB3L case ListItemType.EditItem:
Oo}h:3? TableCell myTableCell;
I/MY4?(T myTableCell = e.Item.Cells[14];
r(46jV.sD: LinkButton myDeleteButton ;
0!_?\)X myDeleteButton = (LinkButton)myTableCell.Controls[0];
{YzCgf myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
dD=$$(
je break;
DfD
>hf/ default:
JfIXv break;
7|DG1p9C }
H.@$#D ehr-o7]( }
>8>!wi9U pOc2V 5.点击表格行链接另一页
3k`Q]O=OU private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
b-sN#'TDg {
3SP";3+ //点击表格打开
<m]0!ii if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
K)7T]z` e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
G`Nw]_
Z_ }
25$_tZPAI 3ic /xy;} 双击表格连接到另一页
&*=!B9OBI `$B?TNuch7 在itemDataBind事件中
%N*[{j= ^ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
c$Kc,`2m7 {
)8@- string OrderItemID =e.item.cells[1].Text;
F@i>l{C ...
73;Y(uh9 e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
Jr2yn{s=S }
D_DwP$wSo L,[Q/$S8 双击表格打开新一页
b>;?{ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
S4x9k{Xn {
+'<PW+U$ string OrderItemID =e.item.cells[1].Text;
pAE
(i7 ...
ez,.-@O e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
.Vbd-jr'M }
|LZ;2 i DM^0[3XuV5 ★特别注意:【?id=】 处不能为 【?id =】
mr\,"S-` 6.表格超连接列传递参数
Z7a@$n3h <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
yE8D^M|g <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
,|A^ <R` D&%8JL 7.表格点击改变颜色
_z@/~M( if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
Lv%3 jj {
d @R7b^#g e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
.l1x~( this.style.color=’buttontext’;this.style.cursor=’default’;");
JbPkC*. }
>dl5^
XIInI 写在DataGrid的_ItemDataBound里
J4T"O<i$58 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
;g0Q_F@;p {
_J1\c~ke" e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
tvI<Why\p this.style.color=’buttontext’;this.style.cursor=’default’;");
lVvcrU e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
s2O()u- }
QLY;@-jF$ COh#/-`\1 ]-\68b N 8.关于日期格式
@xWWN <_YdN)x 日期格式设定
[c,V=:Cq DataFormatString="{0:yyyy-MM-dd}"
MQoA\ /vSGmW-* 我觉得应该在itembound事件中
Wk%|%/: e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
)'+[,z ;s ojM'8z0Hn 9.获取错误信息并到指定页面
"\o#YC wA5Iz{uQO 不要使用Response.Redirect,而应该使用Server.Transfer
}4C_r'd6 [7I:Dm e.g
\?n6l7*t> // in global.asax
7Eyi~jes protected void Application_Error(Object sender, EventArgs e) {
w%]) if (Server.GetLastError() is HttpUnhandledException)
$g>bp<9v4 Server.Transfer("MyErrorPage.aspx");
Y$JVxly &|Gg46P7 //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
dmF=8nff }
,JwX*L<: kLgkUck8] 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
P]Fb0X n#X~"|U` 10.清空Cookie
}097[-g7 Cookie.Expires=[DateTime];
IWv(GQx Response.Cookies("UserName").Expires = 0
|m's) {)qr3-EM# 11.自定义异常处理
u>
{aF{ //自定义异常处理类
^%f8JoB using System;
SJiQg-+<Uf using System.Diagnostics;
01mu6) }b2YX+/e$f namespace MyAppException
HyzSHI {
!<];N0nt# /// <summary>
V(`]hH0;T /// 从系统异常类ApplicationException继承的应用程序异常处理类。
2^'Ec:|f /// 自动将异常内容记录到Windows NT/2000的应用程序日志
Tt: (l/1 /// </summary>
KdoI public class AppException:System.ApplicationException
$z$^
yjL {
89M'klZ public AppException()
nD5wN~[J {
%,[,mW4l if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
V?EX`2S }
`KZV@t $OZ= L
public AppException(string message)
_<AkM" {
$#rkvG_w LogEvent(message);
v]SxZLa }
,>B11Z}PH *EuX7LEu_ public AppException(string message,Exception innerException)
qm_l#
u6 {
Ey7zb#/<! LogEvent(message);
i|{psA if (innerException != null)
=q VT {
4. R(`#f LogEvent(innerException.Message);
uX-^9t }
1{N+B#*<[X }
xgxfPcI ]njNSn //日志记录类
Pg}QRCB@ using System;
D?dBm using System.Configuration;
$.D)Llcq using System.Diagnostics;
3@" :& using System.IO;
1
*'
/B using System.Text;
n$2oM5< using System.Threading;
#ZJ 1\Ov ?kR1T0lKkE namespace MyEventLog
B .y}S {
4w+AOWjd /// <summary>
{}s/p9F4 /// 事件日志记录类,提供事件日志记录支持
,ciX *F" /// <remarks>
c!E{fS P /// 定义了4个日志记录方法 (error, warning, info, trace)
<eXGtD /// </remarks>
CT'4. /// </summary>
;B@#,6t/ public class ApplicationLog
V.{HMeE4 {
M d4Q.8 /// <summary>
z%E(o%l8 /// 将错误信息记录到Win2000/NT事件日志中
(9`dLw5 /// <param name="message">需要记录的文本信息</param>
lG-B)
F /// </summary>
C`r:jA<LC, public static void WriteError(String message)
_GkLspSaU {
{ENd]@N* WriteLog(TraceLevel.Error, message);
Gy\]j }
(nQm9 M( ,<
g%}P/ /// <summary>
ry|a_3X(I /// 将警告信息记录到Win2000/NT事件日志中
m}z6Bbis 0 /// <param name="message">需要记录的文本信息</param>
"_&ZRcd* /// </summary>
m]V#fRC public static void WriteWarning(String message)
sl-wNIQ {
,Vq$>T@z WriteLog(TraceLevel.Warning, message);
Ja~8ZrcY }
)Lz
=[e HWV A5E[`Y /// <summary>
J&j5@ /// 将提示信息记录到Win2000/NT事件日志中
*f 7rLM* /// <param name="message">需要记录的文本信息</param>
MB;rxUbhe3 /// </summary>
dDA8IW![S public static void WriteInfo(String message)
;"cQ)=s9Y {
)Wle
CS_ WriteLog(TraceLevel.Info, message);
]A }ZaXd }
eGT&&Y /// <summary>
NxF:s,a6 /// 将跟踪信息记录到Win2000/NT事件日志中
lD0a<L3 /// <param name="message">需要记录的文本信息</param>
1qR$ Yr\ /// </summary>
C!:Lk,Z public static void WriteTrace(String message)
&OJ?Za@p@) {
d-b<_k{p WriteLog(TraceLevel.Verbose, message);
M@KQOAzt }
~D@ YLW1z( ,y'6vW`%g9 /// <summary>
s<LnUF1b /// 格式化记录到事件日志的文本信息格式
DTH}=r- /// <param name="ex">需要格式化的异常对象</param>
C-A?
mIC /// <param name="catchInfo">异常信息标题字符串.</param>
tm/>H /// <retvalue>
@?e~l:g})g /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
2H w7V3q /// </retvalue>
4`"}0:t. /// </summary>
lusUmFm'* public static String FormatException(Exception ex, String catchInfo)
c
$r"q :\ {
j^#p#`m StringBuilder strBuilder = new StringBuilder();
;%d<Uk? if (catchInfo != String.Empty)
#lMcAYH, {
KDb j
C'3 strBuilder.Append(catchInfo).Append("\r\n");
g%Tokl }
.`~?w+ ~ strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
Xg]Cq"RJC return strBuilder.ToString();
9QX!HQ|5y8 }
eI"pRH*f }F0<8L6% /// <summary>
)NhC+=N /// 实际事件日志写入方法
ML'y`S /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
r'y Nc&~ /// <param name="messageText">要记录的文本.</param>
;_SSR8uHv /// </summary>
iJE:>qOTD5 private static void WriteLog(TraceLevel level, String messageText)
ECA<%'$?E {
;^bfLSWm{ try
n%29WF6Zf {
#8M?y*<I EventLogEntryType LogEntryType;
fZ & switch (level)
f8[O]MrO; {
)bih>>H case TraceLevel.Error:
~5N
oR LogEntryType = EventLogEntryType.Error;
RtR@wZ2\s break;
^%zhj3# case TraceLevel.Warning:
"~r)_Ko LogEntryType = EventLogEntryType.Warning;
I;"pPJ3G break;
0sU*3 r? case TraceLevel.Info:
TW>GYGz LogEntryType = EventLogEntryType.Information;
x5MS#c!7 break;
LA_{[VWYp> case TraceLevel.Verbose:
N,K/Ya)1 LogEntryType = EventLogEntryType.SuccessAudit;
Z" ;q w break;
"P#1= default:
J)n_u) , LogEntryType = EventLogEntryType.SuccessAudit;
+@^);b6 break;
pD({"A.x9z }
_b%) L$3 lsu!4n EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
kd !?N //写入事件日志
(eU 4{X7 eventLog.WriteEntry(messageText, LogEntryType);
%H\J@{f .,z6a }
{aUTTEu catch {} //忽略任何异常
-GFZFi }
B%uY/Mwz$ } //class ApplicationLog
-!_8>r;Q4 }
T4wk$R
L I[k"I( 12.Panel 横向滚动,纵向自动扩展
LWJ ?p-X <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
Q*T'tkp {rR(K"M 13.回车转换成Tab
:Q"|%#P <script language="javascript" for="document" event="onkeydown">
]Ac}+? if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
{,sqUq ( event.keyCode=9;
*'{-!Y </script>
seEo)m`d y8s!sO onkeydown="if(event.keyCode==13) event.keyCode=9"
HQ-++;Q O_1[KiZ 14.DataGrid超级连接列
<EUR: DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
HQm_ K0$ 1V1I[CxlX 15.DataGrid行随鼠标变色
I<940PZ private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
b*?u+tWP_ {
~i;{+j6Ho! if (e.Item.ItemType!=ListItemType.Header)
K{ar)_V/ {
J;obh.}u"{ e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
u5A?; a e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
* $f`ouJl }
IANSpWea? }
Q"qI'*Kgt q_.fVn:! 16.模板列
vO1; ; <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
_aPAn|. <ITEMTEMPLATE>
'3672wF/ <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
@M"gEeI9 </ITEMTEMPLATE>
0h@FHw2d </ASP:TEMPLATECOLUMN>
7tcadXk0 Y/.C+wW2 <ASP:TEMPLATECOLUMN headertext="选中">
kh0cJE\_^ <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
AVpg <ITEMTEMPLATE>
Z71m(//*} <ASP:CHECKBOX id="chkExport" runat="server" />
(*$bTI/~ </ITEMTEMPLATE>
qazA,|L! <EDITITEMTEMPLATE>
J |q(HpB <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
mF*x&^ie </EDITITEMTEMPLATE>
B}d&tH2^s </ASP:TEMPLATECOLUMN>
U0_^6zd_ 3^y(@XFt 后台代码
!e|\1v'0 protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
)SmnLvL {
+%W8Juu
//改变列的选定,实现全选或全不选。
>u$8Z CheckBox chkExport ;
BNK]Os if( CheckAll.Checked)
d<a|dwAeh {
Z[. M>| foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
Z0Z6aZeb {
}sXTZX chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
dDPQDIx chkExport.Checked = true;
Ym6d'd<9( }
.hat!Tt9 }
3gi)QCsk else
~gfR1SE {
x z_sejKB foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
eQbHf {
3 ~v
1 7 chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
[r/zBF-. chkExport.Checked = false;
WkTJ M }
(9'^T.J }
cszvt2BIg }
2zTi/&K& nYyhQX~]B 17.数字格式化
kTvM,< /5ZX6YkeH 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
I_J&>}V' <%#Container.DataItem("price","{0:¥#,##0.00}")%>
]i*ucW4 xl\Kj2^ int i=123456;
(>v'0RA string s=i.ToString("###,###.00");
g@`i7qN x}] 56f 18.日期格式化
Lzq/^&sc( [oLV,O|s|j 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
ywa*?3?c "%-Vrb=:Y 显示为: 2004-8-11 19:44:28
@5%&wC YT\@fgBt 我只想要:2004-8-11 】
.hl_zc# <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
?E([Nc0T xVm-4gB 应该如何改?
& LE5'.s j_Szw
w- 【格式化日期】
K;?D^n. ;5Sdx5`_ 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
"j^i6RS 6\4-I^=B 【日期的验证表达式】
6}4})B2 q-F
K=r 5 A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
'/W$9jm ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
ZaFt4# F-yY(b]$ B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
v,KKn\X ^\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]))$
2{OR#v~ ~^mUu`@r 【大小写转换】
7;'33Bm* HttpUtility.HtmlEncode(string);
V>{< pS HttpUtility.HtmlDecode(string)
;5[KZ8j6Y @YJI'Hf67 19.如何设定全局变量
lPTx] =G =6%oW2E\ Global.asax中
1\.$=N kx"10Vw Application_Start()事件中
K@D\5s|1| +a1x; 添加Application[属性名] = xxx;
-3 I3 X ks'>?Dw 就是你的全局变量
J$dwy$n wVf~FssN 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
bF'rK'', V$^jlWdR HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
!IxO''4 zG!nqSDG 【ASPNETMENU】点击菜单项弹出新窗口
+X}i%F' P]_d;\
!"v 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
*XVwTW[a <?xml version="1.0" encoding="GB2312"?>
]MbPivM <MenuData ImagesBaseURL="images/">
).k DY?s <MenuGroup>
vvoxK 0 <MenuItem Label="内参信息" URL="Infomation.aspx" >
-yYdj1y; <MenuGroup ID="BBC">
'rQ"Dc1D <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
nwRltK <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
]Bw0Qq F# ......
okNo-\Dh! 0YeTS!*Aj 最好将你的aspnetmenu升级到1.2版
i!wU8@ Szu s*YL7 21.读取DataGrid控件TextBox值
=YO ]m< foreach(DataGrid dgi in yourDataGrid.Items)
8)i""OD@I {
EE/mxN(< TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
/zn=AAYb tb.Text....
l'@-?p(Vuw }
\bA Yic !3v&+Jrf6 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?
t^t% >9o ZzT=m*tQ& 〖思归〗
^)VwxH:s <asp:TemplateColumn HeaderText="数量">
pl[J!d.c <ItemTemplate>
H=r-f@EOrI <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
y4V:)@P onkeyup="javascript:DoCal()"
Z 6jEj9?O />
C*9X;+S0J ITu19WG <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
&hCbXs= </ItemTemplate>
M>Q]{/V7T </asp:TemplateColumn>
5{Cz!ut;tE oFY!NMq}: <asp:TemplateColumn HeaderText="单价">
E+td~&x <ItemTemplate>
IG-\& <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
s6H'}[E< onkeyup="javascript:DoCal()"
2wf&jGHs />
xU
*:a[g 3} A$+PX <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
8v:{BHX p!.~hw9 </ItemTemplate>
)?n'ZhsX </asp:TemplateColumn>
yPyu) KKeMi@N <asp:TemplateColumn HeaderText="金额">
\& JZ
>h <ItemTemplate>
EM,C <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
BD g]M/{ </ItemTemplate>
=x~I'|%3 </asp:TemplateColumn><script language="javascript">
V\~. function DoCal()
H=dIZ {
OvdT* g=8* var e = event.srcElement;
6(
HF)z var row = e.parentNode.parentNode;
AerU`^ var txts = row.all.tags("INPUT");
_Hb;)9y if (!txts.length || txts.length < 3)
,'#TdLe return;
)U^=`* 7 M .#} var q = txts[txts.length-3].value;
W{p}N var p = txts[txts.length-2].value;
7Z-j'pq _vQ52H, if (isNaN(q) || isNaN(p))
|diI(2w return;
U'jt'( ~^t@TMk$ q = parseInt(q);
OG\i?N p = parseFloat(p);
y@P%t9l @SQsEq+A?\ txts[txts.length-1].value = (q * p).toFixed(2);
_0/unJl` }
"gJ?LojB < </script>
Z9{~t `y8pwWo-o 0zt]DCdY ]TV_p[L0B U>5^:%3 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。
,0l
Od< page_load
.?>Cav9: page.smartNavigation=true
OvfluFu7 )XI[hVUA 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 $E(8"l private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
nep#L>LP$x {
F%>$WN#2 for(int i=0;i<e.Item.Cells.Count-1;i++)
|}"YUk^ if(e.Item.ItemType==ListItemType.EditType)
XcR=4q|7 {
;Iu _*U9) e.Item.Cells.Attributes.Add("Width", "80px")
IUMv{2C }
k
%I83,+ }
qpQ;,8X-" TG2#$Bq1 26.对话框
2a d|v] private static string ScriptBegin = "<script language=\"JavaScript\">";
0Tj,TF private static string ScriptEnd = "</script>";
/ViY:-8s \S}/2]* 1 public static void ConfirmMessageBox(string PageTarget,string Content)
D%SOX N {
;QI9 OcE@/ string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
m^X51,+< =NB[jQ :( ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
.Rr^AGA4 @@d_F<Ym[ Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
{!,K[QwcI ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
a~}q]o?j //Response.Write(strScript);
Pz)lq2Zm9 }
F^,:p.ihm< [ATJ!
O 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
+eVYy_bL- OB>Hiy
1.1 取当前年月日时分秒
8SRR)O[)} currentTime=System.DateTime.Now;
ay"jWL- F5)`FM^R 1.2 取当前年
+C~h( int 年= DateTime.Now.Year;
?v^NimcZ
CKAd\L 1.3 取当前月
GDu^P+^ int 月= DateTime.Now.Month;
<G})$f'x2 Z\
hcK: 1.4 取当前日
ch
i=]*9 int 日= DateTime.Now.Day;
<2U#U; +pd,gG?dW 1.5 取当前时
WJ{Iv] }9 int 时= DateTime.Now.Hour;
pcMzLMG< Xhe& "rM 1.6 取当前分
Ak[X`e T int 分= DateTime.Now.Minute;
\ `Hp/D1 sXVl4!=l6 1.7 取当前秒
jY6GWsh:9 int 秒= DateTime.Now.Second;
9r%fBiSk 161P%sGx2 1.8 取当前毫秒
uq5?t int 毫秒= DateTime.Now.Millisecond;
gt{kjrTv& ^s~)"2 g 28.自定义分页代码:
2A_1 E\ <83Ky;ry 先定义变量 :
WNR]GI public static int pageCount; //总页面数
bBIh}aDN public static int curPageIndex=1; //当前页面
M0
z%<_<} tN#C.M7.'7 下一页:
$dM_uSt if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
^ ` LqNG {
Jn+ -G4h$ DataGrid1.CurrentPageIndex += 1;
IQ_6DF curPageIndex+=1;
pg{VKrT` }
%q5dV<X'c TV`1&ta bind(); // DataGrid1数据绑定函数
} c G)$E |[],z 8 上一页:
kcS7)"/ zC if(DataGrid1.CurrentPageIndex >0)
E/cV59 {
rHKO13WF DataGrid1.CurrentPageIndex += 1;
)kep:-wm curPageIndex-=1;
("U<@~ }
[,Ehu<mEK s|%R bind(); // DataGrid1数据绑定函数
A]c'TT@6 nDnJ}`k 直接页面跳转:
'$FF/|{ int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
wra0bS)4 E#!N8fQ if(a<DataGrid1.PageCount)
*JK0X {
UZ<K'H,q this.DataGrid1.CurrentPageIndex=a;
oq7G=8gTp }
fkI 5~Y| mZ71_4X# bind();
'0Cp \2@J^O1, 29.DataGrid使用:
oC`F1!SfOO $0$sM/ % 添加删除确认:
0?54 8yH private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
L{1sYR%s\ {
Kk^*#vR foreach(DataGridItem di in this.DataGrid1.Items)
aL1%BGlmZ< {
W>#yXg9 if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
M5{#!d}^D {
J>(X0@eWz ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
!(lcUdBd }
)Qb,zS6 }
d+,!>.<3 }
q-! H7o 1AAyzAP9` 样式交替:
;<Q%d~$xy} ListItemType itemType = e.Item.ItemType;
Z3]I^i
FI ;VE y{%nF if (itemType == ListItemType.Item )
?xR7Ii3 {
%,bD|
NKp e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
&_L%wV|[ e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
t"$~o:U&) }
gGMfy]]R else if( itemType == ListItemType.AlternatingItem)
BwT[SI<Sg {
CM?:\$ 4 e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
HoPpUq5, e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
.D W>c}1 }
CyIlv0fd} H*0Y_H= 添加一个编号列:
-PV1x1| DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
.I:rb~& DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
O|H: JY for(int i=0;i<dt.Rows.Count;i++)
(fpz",[ {
8 #4K@nm5 dt.Rows["number"]=(i+1).ToString();
&Ym):pc }
`/sNX<mp (p2`ofj DataGrid1.DataSource=dt;
_^ENRk@ DataGrid1.DataBind();
Qxz[ s!(R DataGrid1中添加一个CheckBox,页面中添加一个全选框
v_XN).f; private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
pyhXET
' {
gBqDx|G foreach(DataGridItem thisitem in DataGrid1.Items)
7i($/mNl {
]nsjYsT ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
LhO\a }
z 3aGK }
5t:Zp\$+` 4|PWR_x 将当前页面中DataGrid1显示的数据全部删除
]ogifnwv foreach(DataGridItem thisitem in DataGrid1.Items)
B''yW{ {
uq3pk3
)W9 if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
O&?i#@5# {
Hf('BagBL string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
OQumAj Del (strloginid); //删除函数
htB7 j( }
kQ>2W5o-d- }
g}%ODa !H U =J5lo 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
vYRY?~8 C yx8G9SO? 在Application_Start中添加以下代码:
fAJyD`]Z Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
+Q+O$-a< AppSettings["ConnStr"].ToString();
o"JHB +,spC`M6h 31. 变量.ToString()
7RT{RE xCZ_x$bk 字符型转换 转为字符串
:lai0>
D 12345.ToString("n"); //生成 12,345.00
pwN2Nzski 12345.ToString("C"); //生成 ¥12,345.00
d~8U1}dP 12345.ToString("e"); //生成 1.234500e+004
~DD
_n 12345.ToString("f4"); //生成 12345.0000
yepRJ%mp 12345.ToString("x"); //生成 3039 (16进制)
>n,_Aj
c 12345.ToString("p"); //生成 1,234,500.00%
Qm[((6} 7(2}Vs!5 32、变量.Substring(参数1,参数2);
jnqp"
Ult> \udB4O 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
<~mqb=qA$ &m--} 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)
im*sSz 0 ( <SCRIPT language="javascript">
"c[> >t <!--
Vu(NP\Wm function gook(pws)
)?[2Y%P {
u[qy1M0 frm.submit();
SGl|{+(A }
}!^h2)'7 //-->
4>(K~v5;N \y7?w*K </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
?`TJ0("z" <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
DAq
H <tr>
(~G*'/) <td>
D&m1yl@\J <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
XF: wsC <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
HVvm3qu4 <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
N,w6 NATi)A"TZ <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
^(&2 <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
ANPG3^w 5tv*uz|fv </td>
05ZYOs } pXNhU88 </tr>
U+VJiz<! ;7Qe m& </form>
UP-2{zb |? M}jl\{ 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。
t>]W+Lx#
0(&uH0x 下面是获取用户输入的登陆信息的代码:
T\wOGaCW string name;
Z2{$FN name=Request.QueryString["EmailName"];
3Dc^lfn \nOV2(FAT try
_`Kh8G
{e {
crd|r." int a=name.IndexOf("@",0,name.Length);
6Hc25NuQZ f_user.Value=name.Substring(0,a);
p,WBF f_domain.Value=name.Substring(a+1,name.Length-(a+1));
M/V"Ke"N f_pass.Value=Request.QueryString["Psw"];
b c
.Vy }
qjfv9sU ~=wBF catch
xG~-. {
9F,XjPK= Script.Alert("错误的邮箱!");
MS SHMR Server.Transfer("index.aspx");
KI<