1. 打开新的窗口并传送参数:
9KSi-2?H c:[k+_Zr 传送参数:
xO$P
C, response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
R1jl <= }D/+YG 接收参数:
8*ZsR)! string a = Request.QueryString("id");
Tc2.ciU string b = Request.QueryString("id1");
1MelHW M5xJ_yjG 2.为按钮添加对话框
50UdY9E_v} Button1.Attributes.Add("onclick","return confirm(’确认?’)");
*zfgO pK button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
6(
HF)z AerU`^ 3.删除表格选定记录
_Hb;)9y int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
f^c+M~\JKj string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
3"fDFR JJ.8V72;!Z 4.删除表格记录警告
lU
WXXuO] private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
Bous d {
9+.wj/75 switch(e.Item.ItemType)
qHtQ4_Zn; {
=KRM`_QShg case ListItemType.Item :
z^Q'GBoBA case ListItemType.AlternatingItem :
{>&~kM@ case ListItemType.EditItem:
m0HK1' TableCell myTableCell;
_0/unJl` myTableCell = e.Item.Cells[14];
dBWny& LinkButton myDeleteButton ;
|Q?h"5i"( myDeleteButton = (LinkButton)myTableCell.Controls[0];
!oLn= myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
b|#=kPVgL} break;
b UG,~\Z default:
&(F
c .3m break;
hU)t5/h;K }
ldv@C6+J
'g v0;L }
f@*69a8 y]9R#\P/ 5.点击表格行链接另一页
F%>$WN#2 private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
"k zKQ~ {
K;K0D@>]HR //点击表格打开
Xr*I`BJ if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{gMe<y e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
q8 v iC| }
z4u.bU y:G%p3h)[ 双击表格连接到另一页
2D\pt .jrNi=BP* 在itemDataBind事件中
?_Qe45 @ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
'|}A/` {
Y;'<u\^M" string OrderItemID =e.item.cells[1].Text;
{kpad(E ...
|r9<aVlK e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
ly0R'4j \ }
emSq{A
Y@,iDQ 双击表格打开新一页
6?Ncgj
&@ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
_!xrBdaJ {
!Tzo&G string OrderItemID =e.item.cells[1].Text;
*WE8J#]d ...
6St=r)_ e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
OB>Hiy
}
8SRR)O[)} %m&6'Rpfk ★特别注意:【?id=】 处不能为 【?id =】
)JMqC+J3*t 6.表格超连接列传递参数
"*vrrY <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
Nd8>p.iqO <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
/wDf,Hduz #W\}v(Ke 7.表格点击改变颜色
jAJ='|[X\ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
*85N_+Wv! {
JCWTB`EB> e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
Xv1vq
-cM this.style.color=’buttontext’;this.style.cursor=’default’;");
.Fb#j+Lq }
HxI6_ >n^I Ai/X*y:[? 写在DataGrid的_ItemDataBound里
C% -Tw]T$_ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
;"dX]": {
s5~k]"{j e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
^'3c%&Zf3 this.style.color=’buttontext’;this.style.cursor=’default’;");
x*OdMr\n8? e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
"vGh/sXW }
MA
.;=T 4`O[U#? *6I$N>1 8.关于日期格式
/HIyQW\Ki- Ow0>qzTg 日期格式设定
WNR]GI DataFormatString="{0:yyyy-MM-dd}"
^h?fr` o30C\ 我觉得应该在itembound事件中
0/HFLz' e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
vQ rxx Vh-8pFt 9.获取错误信息并到指定页面
[?K>s>it }s,NM%oI 不要使用Response.Redirect,而应该使用Server.Transfer
)KZMRAT- [,;Y5#Y[5 e.g
yD"]:ts3 // in global.asax
3IxC@QR protected void Application_Error(Object sender, EventArgs e) {
|>Q>d8|k if (Server.GetLastError() is HttpUnhandledException)
ni;)6,i Server.Transfer("MyErrorPage.aspx");
@$
7 GrT HK)m^!= //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
UL[,A+X8D }
u
X,n[u b1Vr>:sK47 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
Bx45yaT etX@z'H 10.清空Cookie
OIKx:&uIk Cookie.Expires=[DateTime];
]SJ#:7 Response.Cookies("UserName").Expires = 0
/3s&??{tv tW/k 11.自定义异常处理
cWW?@_ //自定义异常处理类
b8d0]YS using System;
C1^%!) using System.Diagnostics;
s{b\\$Rb `W86]ut[ namespace MyAppException
3ijPm<wn {
Q6m8N /// <summary>
`cp\UH@
/// 从系统异常类ApplicationException继承的应用程序异常处理类。
A8f.h5~9 /// 自动将异常内容记录到Windows NT/2000的应用程序日志
N
sdpE?V /// </summary>
[ar0{MPYd public class AppException:System.ApplicationException
pGD@R=8 {
\3hA_{ w public AppException()
xM%4/QE+ {
qfsPX6] if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
F! =l
r }
~N!HxQ "{~5QO public AppException(string message)
rZ?:$],U! {
uw \@~ ,d LogEvent(message);
l.@1]4. }
c)#P}Ai f$dPDbZQ public AppException(string message,Exception innerException)
{R_>KE1 {
T^ktfgXq LogEvent(message);
rpKZ>S|7+) if (innerException != null)
5{'hsC {
krfXvQJwJ LogEvent(innerException.Message);
FJeh=\ }
)R7Sh51P }
c`<2&ke x*Z'i<;B //日志记录类
>[ B.y using System;
k|-\[Yl . using System.Configuration;
CY o
m using System.Diagnostics;
)'kpO> _G using System.IO;
[NSslVr using System.Text;
MhN;GMH using System.Threading;
!Ubm 586! j4IVIj@$` namespace MyEventLog
"'CvB0> {
8R*;8y_ /// <summary>
`O6#-<> /// 事件日志记录类,提供事件日志记录支持
M|blg!j; /// <remarks>
$!O@Z8B /// 定义了4个日志记录方法 (error, warning, info, trace)
HTh?&u\QG /// </remarks>
gBqDx|G /// </summary>
l\Ozy public class ApplicationLog
9d"*Z%!j {
LhO\a /// <summary>
)M0`dy{1 /// 将错误信息记录到Win2000/NT事件日志中
&ZD@-"@ /// <param name="message">需要记录的文本信息</param>
jC&fnt,O /// </summary>
:$D*ab^^P public static void WriteError(String message)
k'iiRRM {
k>ErDv8 WriteLog(TraceLevel.Error, message);
eB~\~@ }
|:S6Gp[\O cb_C2+%8NA /// <summary>
]0D- g2!|A /// 将警告信息记录到Win2000/NT事件日志中
Nk9=A4=| /// <param name="message">需要记录的文本信息</param>
CFFb>d /// </summary>
eKr>>4,-P public static void WriteWarning(String message)
yx8G9SO? {
e_b,{l# WriteLog(TraceLevel.Warning, message);
-`'|z+V }
UC+Qn 1]If<
< /// <summary>
2_pF#M9 /// 将提示信息记录到Win2000/NT事件日志中
B?%u<F /// <param name="message">需要记录的文本信息</param>
?d%)R*3IX /// </summary>
c';~bYZ public static void WriteInfo(String message)
~) ;4O8~. {
Lc~m`=B WriteLog(TraceLevel.Info, message);
cB,^?djJ3 }
Fizrsr 6% /// <summary>
i$y=tJehi /// 将跟踪信息记录到Win2000/NT事件日志中
Kyh6QA^ /// <param name="message">需要记录的文本信息</param>
F/2cQ.u2 /// </summary>
Ij(dgY public static void WriteTrace(String message)
Z0&^(Fb {
1te^dh:Vp WriteLog(TraceLevel.Verbose, message);
"c[> >t }
|va@&;#wf CRo'r/G /// <summary>
%ZoJu /// 格式化记录到事件日志的文本信息格式
O
?T~>| /// <param name="ex">需要格式化的异常对象</param>
vGyQ306 /// <param name="catchInfo">异常信息标题字符串.</param>
7Q/H+) /// <retvalue>
\];|$FQg /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
I~l_ky|a ! /// </retvalue>
#:" ]-u^ /// </summary>
++~
G\T9H public static String FormatException(Exception ex, String catchInfo)
Q3>qT84 {
^U~Er'mT
StringBuilder strBuilder = new StringBuilder();
s>;"bzzq if (catchInfo != String.Empty)
VQ!4(
<XD {
:(enaHn#~ strBuilder.Append(catchInfo).Append("\r\n");
Kj?)]Z4 }
IG0_ strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
f #h0O3 return strBuilder.ToString();
c+{XP&g8_J }
%;4#?.W8 [%>*P~6nK /// <summary>
UP-2{zb |? /// 实际事件日志写入方法
"a(R>PV% /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
'tTlBf7# /// <param name="messageText">要记录的文本.</param>
=O8 YU)# /// </summary>
<;i&-, private static void WriteLog(TraceLevel level, String messageText)
"Io-%Su+ {
(a!E3y5, try
]Q^8
9? {
kk126?V]_ EventLogEntryType LogEntryType;
yYOV:3!" switch (level)
7#
'j>] {
ZHen: case TraceLevel.Error:
VII`qbxT LogEntryType = EventLogEntryType.Error;
!5+9~/; break;
Iy5W/QK6 case TraceLevel.Warning:
fo}@B&=4 LogEntryType = EventLogEntryType.Warning;
7TAoWD3
break;
3sBWtz case TraceLevel.Info:
w;VUP@Wm LogEntryType = EventLogEntryType.Information;
dFeGibI{ break;
rGH7S!\AM case TraceLevel.Verbose:
i_6 wD LogEntryType = EventLogEntryType.SuccessAudit;
p38s&\-kEN break;
-GgV&%'a default:
-NG9?sI\U LogEntryType = EventLogEntryType.SuccessAudit;
'H1"z!] break;
i\36 s$\ }
j@Us7Q)A( hy"p8j7_ EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
}xrrHp //写入事件日志
QL(}k)dB eventLog.WriteEntry(messageText, LogEntryType);
/?j^Qu %4To@#c }
]:^kw$ catch {} //忽略任何异常
)fZ5.W8UE] }
]*S_fme } //class ApplicationLog
=7P; /EV }
OQX ek@~2 hG'2(Y! 12.Panel 横向滚动,纵向自动扩展
6a`_i <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
8&f"")m [TV"mA 13.回车转换成Tab
NOmSLIgt7 <script language="javascript" for="document" event="onkeydown">
Q^V`%+ if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
VA'< event.keyCode=9;
kqAQrg]n </script>
[dL?N ;v+CQx onkeydown="if(event.keyCode==13) event.keyCode=9"
7e#|=e
*I! a( {`<F 14.DataGrid超级连接列
$t</{]iX DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
!c`Q?aGV) L@R%*-a 15.DataGrid行随鼠标变色
j'0*|f ^z private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
l1_X5DI {
ow`c B if (e.Item.ItemType!=ListItemType.Header)
U14dQ=~b/ {
3yD5u e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
%J%gXk}] e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
yZ)ScB^ }
0Rk'sEX, }
$kz5)vj " N$,)vb< 16.模板列
LA@}{hU <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
&Y=NUDt_ <ITEMTEMPLATE>
GRV9s9^ <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
IKr7"` </ITEMTEMPLATE>
sBu"$"] </ASP:TEMPLATECOLUMN>
;^8^L'7cr f"0H9 <ASP:TEMPLATECOLUMN headertext="选中">
qiF~I0_0 <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
A07P$3>/W <ITEMTEMPLATE>
0De M <ASP:CHECKBOX id="chkExport" runat="server" />
O}D8 </ITEMTEMPLATE>
7ER 2h* <EDITITEMTEMPLATE>
J+|ohA <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
I~qiF%?d </EDITITEMTEMPLATE>
A7RX2 </ASP:TEMPLATECOLUMN>
p+7BsW.l IP;@unBl 后台代码
{n{}Y. protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
?(<AT]h V: {
n1/lE) //改变列的选定,实现全选或全不选。
#rr-4$w+ CheckBox chkExport ;
#Fd([Zx#. if( CheckAll.Checked)
uWInx6p {
r=Q5=(hn foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
ck~xj0 {
U
^9oc& chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
f,a %@WT chkExport.Checked = true;
|)-:w? }
!m|%4/
M@ }
L-R}O
8 else
{|E7N"Qzg {
">9CN$]J foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
6;pREM+ {
"\[>@_p h chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
U}0/V
c26 chkExport.Checked = false;
E}=,"i }
*]6dV' }
) :@%xoF5 }
//@=Q!MW sEN@q 17.数字格式化
vrv*k jf/9]`Hf 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
(F YJ^o <%#Container.DataItem("price","{0:¥#,##0.00}")%>
`C?OAR44 Q9>]@DrAx int i=123456;
[;AcV73 string s=i.ToString("###,###.00");
U9 *2< c 8!6*|!,:?n 18.日期格式化
=3C)sz} r![JPhei 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
& }}WP:U 8Jj0-4] 显示为: 2004-8-11 19:44:28
u(Sz$eV J6ShIPc 我只想要:2004-8-11 】
S\;.nAR <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
l|em E
^ Jk`)`94I 应该如何改?
Z<<gz[$+p u/'sdt 【格式化日期】
;w(1Ydo :&)/vq 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
B!ibE<7, /t)c fFM 【日期的验证表达式】
DF|s,J`98 .<^YE% A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
bK8F | ^((\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})))?$
T}Vpy` zf>^2t*\ B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
M2Fj)w2 ^\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]))$
dHF$T33It cievC,3* 【大小写转换】
9XqAjez\ HttpUtility.HtmlEncode(string);
)NmlV99q HttpUtility.HtmlDecode(string)
yL
x .#kx6 {a8^6dm*E 19.如何设定全局变量
6*aa[,> Jhy
t)@7/, Global.asax中
;GFB@I@
'Rd*X6dv Application_Start()事件中
=Z .V+ 4+ 2, "q_d'V 添加Application[属性名] = xxx;
=l2Dm "E)++\JL 就是你的全局变量
Xu94v{u3 W({TC 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
u@_!mjXQ \y H3Y HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
4!~
.6cp3 v<3o[m q 【ASPNETMENU】点击菜单项弹出新窗口
AOlt,MNpQ q
X%vRf0 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
V l~Y <?xml version="1.0" encoding="GB2312"?>
(21 W6 <MenuData ImagesBaseURL="images/">
?(/j<,m^ <MenuGroup>
u@Cf*VPK <MenuItem Label="内参信息" URL="Infomation.aspx" >
me:|!lI7YU <MenuGroup ID="BBC">
;j>Vt?:Pw <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
H/Ec^Lc+_ <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
g7 Md ......
,]uX:h-EM J(EaE2 最好将你的aspnetmenu升级到1.2版
ewAH'H]o UGmuX:@y76 21.读取DataGrid控件TextBox值
tSb?]J foreach(DataGrid dgi in yourDataGrid.Items)
E +Ujpd {
!
nCjA\$ TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
,zN3? /7 tb.Text....
6/[Z178m }
2fzKdkJhe C,{F0-D 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
xi?P(sA ,ykPQzO 〖思归〗
&R'w-0k_ <asp:TemplateColumn HeaderText="数量">
5>ADw3z' <ItemTemplate>
\m=-8KpU <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
:vYtMp onkeyup="javascript:DoCal()"
Dh&:- />
VelB-vy& oNuPP5d[] <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
}iua]
4| </ItemTemplate>
~*7O(8 </asp:TemplateColumn>
I%}L@fZ 1KTabj/C <asp:TemplateColumn HeaderText="单价">
(ve+,H6w\ <ItemTemplate>
9Hf*cQ <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
YVB%
kKv{ onkeyup="javascript:DoCal()"
;.ysCF />
01LZE,. 8%o~4u3 <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
9W1;Kb|Z< T!l
mO? Q </ItemTemplate>
/x </asp:TemplateColumn>
C9<4~IM
w 6IEUJ-M Z <asp:TemplateColumn HeaderText="金额">
81g9ZV(4 <ItemTemplate>
-|m$YrzG <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
7$(_j<o` </ItemTemplate>
/ <JY:1| </asp:TemplateColumn><script language="javascript">
Q0V^PDF function DoCal()
{
EA2 {
wL'oImE var e = event.srcElement;
0TTIaa$ var row = e.parentNode.parentNode;
pO"m~ mpA var txts = row.all.tags("INPUT");
89zuL18V if (!txts.length || txts.length < 3)
zzX<?6MS return;
fd4;mc1T QTVa var q = txts[txts.length-3].value;
{bN Y var p = txts[txts.length-2].value;
SK's!m:r= }%eDEM if (isNaN(q) || isNaN(p))
oG!6}5 return;
z{%oJ_ 43KaL( q = parseInt(q);
1|W2s\ p = parseFloat(p);
t-_#Q bzE{ sNL+F txts[txts.length-1].value = (q * p).toFixed(2);
s~L`53A }
21U&Ww </script>
w{3ycR 8Bq-0=E !6lOIgn UL&} s_ vyE{WkZxR 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。
q$F) !& page_load
L/ ~D<V page.smartNavigation=true
W;qP=DK2 F"I*-!o 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 ?
+@e
}mL\8 private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
C ck#Y {
(i\)|c/a7 for(int i=0;i<e.Item.Cells.Count-1;i++)
}"hW b( if(e.Item.ItemType==ListItemType.EditType)
p+$+MeBz {
^ESUMXb e.Item.Cells.Attributes.Add("Width", "80px")
?z3] }
P/G>/MD/l }
)AI?x@ tj[ c#@[B 26.对话框
})PO7: private static string ScriptBegin = "<script language=\"JavaScript\">";
88+
=F
XG private static string ScriptEnd = "</script>";
z?4=h Sy LX\)8~dp public static void ConfirmMessageBox(string PageTarget,string Content)
6x/s|RWL1 {
UU[H@ym# string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
W2hA-1 4^[
/=J} ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
g8RPHjvZ gX^ PSsp Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
<[ZI.+_Wt ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
d*2u}1Jo8 //Response.Write(strScript);
l[oe*aYN7 }
b1xpz1 RJhK$\ 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
>La><.z~ 9,scH65x 1.1 取当前年月日时分秒
7\X$7 currentTime=System.DateTime.Now;
$Asr`Q1i
h)cY])tGtK 1.2 取当前年
M?$ZJ- int 年= DateTime.Now.Year;
1'Rmg\( Zj!Abji=O 1.3 取当前月
k"0;D-lTZ> int 月= DateTime.Now.Month;
D:9
2\l mlB~V3M'G 1.4 取当前日
id?E)Jy int 日= DateTime.Now.Day;
Xb,T{.3@ I ]9C_ 1.5 取当前时
KmmQ ,e% int 时= DateTime.Now.Hour;
MA*
:<l T D@v9 1.6 取当前分
V
A^l+Z,d int 分= DateTime.Now.Minute;
pbXi9|bI 8(U{2B8>\% 1.7 取当前秒
gXFWxT8S int 秒= DateTime.Now.Second;
mh/n.*E7 5z$,6T 1.8 取当前毫秒
+>f<EPGn int 毫秒= DateTime.Now.Millisecond;
;t#]2<d* X@2-*so< 28.自定义分页代码:
/+K? F=a+z/xKT 先定义变量 :
= "ts`> public static int pageCount; //总页面数
si4-3eC public static int curPageIndex=1; //当前页面
CB\{! RzKb{>
;A 下一页:
K,ej%Vtz if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
{}~: &.D {
6 ,ANNj DataGrid1.CurrentPageIndex += 1;
22hSove. curPageIndex+=1;
cR7wx 0Aj }
Ut@RGg+f8 Dr3n+Q bind(); // DataGrid1数据绑定函数
y^>Q/H\
fK}h"iH+K 上一页:
JtKp(k& if(DataGrid1.CurrentPageIndex >0)
}j 5 a[L {
n
1b(\PA DataGrid1.CurrentPageIndex += 1;
"Y:/=
Gx curPageIndex-=1;
gJN0!N' }
ff?t[GS ={2!c0s bind(); // DataGrid1数据绑定函数
SUCUP<G !v|ISyK 直接页面跳转:
^?"\?M1 int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
7u.|XmUz {16<^ if(a<DataGrid1.PageCount)
M+>`sj {
&$FvWFRh# this.DataGrid1.CurrentPageIndex=a;
F'8T;J7 }
U%B(5cC yGBQ0o7E bind();
\p&~,% _cH@I?B 29.DataGrid使用:
j F"YTr6 0*%&> 添加删除确认:
shC;hR&; private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
c{#yx_)V& {
)+y G+ foreach(DataGridItem di in this.DataGrid1.Items)
7v}x?I {
9<Eg}Ic if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
r{Rg920 {
&a)eJF]:! ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
`iKj }
zoDZZ%{ }
fIC9WbiH- }
zJlQ_U- ! r`\A
nT? 样式交替:
EpPf_ \o ListItemType itemType = e.Item.ItemType;
?^#lWx q @DAF 6ygs if (itemType == ListItemType.Item )
~ A Qp| {
Y(VJbm` e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
Btt]R e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
w) ]H ^6 }
:c[n\)U[aa else if( itemType == ListItemType.AlternatingItem)
X<OSN&d
{
zzGYiF? e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
mY!iu(R1 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
@JkK99\(>9 }
Z(0@1l`Z-` 9a$56GnW1 添加一个编号列:
OK|qv [ DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
Mn: /1eY DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
W1aa:hEf 5
LP?Ij for(int i=0;i<dt.Rows.Count;i++)
8euZTfK9e {
S*)1|~pRvQ dt.Rows["number"]=(i+1).ToString();
'rP]Nw }
o/cjXun* 8
(jUe DataGrid1.DataSource=dt;
~=r^3nZR/J DataGrid1.DataBind();
]LPQYL Mq%,lJA\ DataGrid1中添加一个CheckBox,页面中添加一个全选框
>n5:1.g private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
bBxw#_3A?E {
9<CG s3\ foreach(DataGridItem thisitem in DataGrid1.Items)
u<ySd? {
=;~I_)Pg1 ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
N^?9ZO }
}S_oH9A }
pj|pcv^ ~rbIMF4T`] 将当前页面中DataGrid1显示的数据全部删除
i@"e,7mSG foreach(DataGridItem thisitem in DataGrid1.Items)
.]4W!])9 {
ug 7o>PX if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
Fnx`Ri {
`xS{0P{uj string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
TTNkr` Del (strloginid); //删除函数
("7M
b{ }
Z-=YM P ]Q }
n_K~vD `RQ#. 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)
0CvsvUN@ iyx>q!P 在Application_Start中添加以下代码:
l":c Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
#>;FUZuJr AppSettings["ConnStr"].ToString();
sE(HZR1 [K~]& 31. 变量.ToString()
JEn3`B!* Z*{]
, 字符型转换 转为字符串
{Ng oYl 12345.ToString("n"); //生成 12,345.00
6V9doP ]i 12345.ToString("C"); //生成 ¥12,345.00
RH)EB<PV 12345.ToString("e"); //生成 1.234500e+004
1tzV8(7 12345.ToString("f4"); //生成 12345.0000
H( -Y 12345.ToString("x"); //生成 3039 (16进制)
RH0>ZZR 12345.ToString("p"); //生成 1,234,500.00%
_hf4A8ak gv15t'y9 32、变量.Substring(参数1,参数2);
z1OFcqm |rRO@18dA 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);
<c[U#KrvJ u?ek|%Ok 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)
`WEZ"5n <SCRIPT language="javascript">
=%)+%[wv <!--
AT
Zhr.
H function gook(pws)
PrQ?PvA<L {
YEu1#N frm.submit();
"e3["' }
$>M<j //-->
Rn%N&1
Ef +KGZHO! </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
"ceed)(: <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
2g{)AtK$# <tr>
jd`},X / <td>
Q\
^[!| <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
PQW(EeQ <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
8{U-m0v <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
NIr@R7MKd iJFs0?* <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
$$Vt7"F <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
u]^N&2UW {)f~#37 </td>
a\uie$"cr] iyZZ}M </tr>
\b'xt Ax3W2s </form>
4Q=ftY< jt~Qu- 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-u|U(n 3XiO@jzre 下面是获取用户输入的登陆信息的代码:
I[MgIr^ string name;
>>[/UFC)n name=Request.QueryString["EmailName"];
bok.j pZZgIw}aS try
\ A1uhHP! {
>4m'tZ8 int a=name.IndexOf("@",0,name.Length);
WlB'YL-`g f_user.Value=name.Substring(0,a);
iVtl72O f_domain.Value=name.Substring(a+1,name.Length-(a+1));
AEmNHO@%q f_pass.Value=Request.QueryString["Psw"];
kID[#g' }
HC {XX>F^ z@s5m} catch
,iNv' {
Yw3oJf& Script.Alert("错误的邮箱!");
LL^q1)o Server.Transfer("index.aspx");
m4K* < }