1. 打开新的窗口并传送参数:
;/W;M> ^ ;$G.?r 传送参数:
Vc3tKuMsiX response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
kL,{H~iq; c,1Yxg]| 接收参数:
? Ovl(4VG string a = Request.QueryString("id");
cbl2D5s+i] string b = Request.QueryString("id1");
1pC!F ;9Oo M* (]hu0! 2.为按钮添加对话框
Bl-nS{9" Button1.Attributes.Add("onclick","return confirm(’确认?’)");
Da!A1|" button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
<LDVO'I0! gRuNC=sR 3.删除表格选定记录
A
e&t#,) int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
edqek jh string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
8kw`=wSH> Us'm9 J 4.删除表格记录警告
rS>JzbWa private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
Z;bzp3v {
#J]u3*Tn| switch(e.Item.ItemType)
]&1Kz
2/ {
;CD.8f]N case ListItemType.Item :
g*b`V{/Vw case ListItemType.AlternatingItem :
FW:x XK case ListItemType.EditItem:
T=}(S4n#BX TableCell myTableCell;
*doK$wYP myTableCell = e.Item.Cells[14];
-cCujDM#T LinkButton myDeleteButton ;
}\`MXh's myDeleteButton = (LinkButton)myTableCell.Controls[0];
RF
4u\ \ myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
(bi}?V* break;
@^:R1c![s default:
1Tf"<Dp break;
pGz-5afL }
sB
]~=vUP kC"<4U }
<8p53*a zCT Wi 5.点击表格行链接另一页
imAsE;: private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
]lzt"[ {
[K;J#0V+&L //点击表格打开
!CROc} if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
7=t4;8|j; e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
rl9YB %P }
DPJ#Y -0 [Z|R-{" 双击表格连接到另一页
V2cLwQ'0 n'{cU( 在itemDataBind事件中
&IM;Yl if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
(Bd8@}\u_ {
NH$a :> string OrderItemID =e.item.cells[1].Text;
-
*!R ...
y~An'+yBa e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
v'7,(.E }
}<o.VY&;. jpZ, $ 双击表格打开新一页
;sCf2TD,_ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
3(G}IWPq< {
Y"~I(,nx! string OrderItemID =e.item.cells[1].Text;
^ElUU ?rX ...
WF<`CQ g[ e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
40N8?kQ}? }
=vMFCp;mv EAU6z(X$ ★特别注意:【?id=】 处不能为 【?id =】
7y:%^sl 6.表格超连接列传递参数
[f}YXQ0N) <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
n1`D:XrE <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
>6Y\CixN /=A?O\B7 7.表格点击改变颜色
('pNAn!] if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
~isrE;N1| {
k/YEUC5 e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
q?g4**C this.style.color=’buttontext’;this.style.cursor=’default’;");
m'k.R
j }
D ::),, R>U0W{1NO 写在DataGrid的_ItemDataBound里
W/9dT^1y4' if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
BRbx. {
>4`("# e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
XtVx
H4q this.style.color=’buttontext’;this.style.cursor=’default’;");
l=U@j
T e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
Enn7p9& }
#N_C|v/ " m<]B LO<R<zz 8.关于日期格式
@6 uB78U4O &U ]L@]x 日期格式设定
xtYX}u DataFormatString="{0:yyyy-MM-dd}"
%N_5p'W m8;;
O 我觉得应该在itembound事件中
hIu;\dfwk e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
bmVksi2b Esvr~)Y 9.获取错误信息并到指定页面
fy" q 6/Y3#d 不要使用Response.Redirect,而应该使用Server.Transfer
`z%f@/:fG 4Tgy2[D?q e.g
St9W{ // in global.asax
Y%y= protected void Application_Error(Object sender, EventArgs e) {
z&[Rw<{Psb if (Server.GetLastError() is HttpUnhandledException)
4;'o`K~* Server.Transfer("MyErrorPage.aspx");
a]-F,M J 4Ei*\: //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
F|3Te?_ }
yEIM58l YKKZRlQo 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
hRTw8-wy: NpqMdd 10.清空Cookie
B-PN +P2 Cookie.Expires=[DateTime];
/]m5HW(P7K Response.Cookies("UserName").Expires = 0
S0\QZ/je U8qb2'a8 11.自定义异常处理
U;u@\E@2 //自定义异常处理类
~kPHf_B;z using System;
] W39HL using System.Diagnostics;
$q,2VH :Ip $(B|$e^:( namespace MyAppException
ZN#mu]jC? {
T#kPn#| /// <summary>
{Qbg'|HO=l /// 从系统异常类ApplicationException继承的应用程序异常处理类。
5'wWj}0!% /// 自动将异常内容记录到Windows NT/2000的应用程序日志
Uo?g@D /// </summary>
!qk+>6~A, public class AppException:System.ApplicationException
K8M[xaI@ {
jsB%RvX public AppException()
=n.d' {
w%F~4|F if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
Hy=';Ccn} }
,]RMa\Q4Wg &{E1w<uv public AppException(string message)
ln.'}P {
{7swE(N LogEvent(message);
XE8>&&X }
T1AD(r\W5 TLbnG$VQS public AppException(string message,Exception innerException)
o;5 J= {
[y$P'Y LogEvent(message);
|8^53*f ? if (innerException != null)
2GeJ\1k {
art
L LogEvent(innerException.Message);
bQd'objpY }
Ug(;\*yg }
A)6xEeyR Aiyx!Q6vT //日志记录类
$Y'}wB{pc using System;
F6XrJ?JM using System.Configuration;
[Z~h!} using System.Diagnostics;
Q(v*I&k using System.IO;
Kz>bfq7 using System.Text;
v$~1{}iI5 using System.Threading;
A$d)xq-]K &%eWCe++ namespace MyEventLog
@GTkS!86 {
+I~`Ob /// <summary>
[ye!3h&] /// 事件日志记录类,提供事件日志记录支持
pY@$N&+W /// <remarks>
-u+@5K;^Y /// 定义了4个日志记录方法 (error, warning, info, trace)
2tPW1"M.n /// </remarks>
%-9?rOr /// </summary>
n!Hj4~T0 public class ApplicationLog
Z*uv~0a>9Q {
I_hus /// <summary>
Z[9)
hGh /// 将错误信息记录到Win2000/NT事件日志中
_yx~t /// <param name="message">需要记录的文本信息</param>
8(d Hn /// </summary>
0QJ
: public static void WriteError(String message)
DpD19)ouy {
RHO| g0 WriteLog(TraceLevel.Error, message);
|T`ZK?B+u }
c,@&Z#IZ` |w; hu] /// <summary>
YA+jLy6ZL /// 将警告信息记录到Win2000/NT事件日志中
9ZXkuP9vm /// <param name="message">需要记录的文本信息</param>
\vg(@)$q
/// </summary>
;IV public static void WriteWarning(String message)
H(|n,c {
v9*ugu[K9 WriteLog(TraceLevel.Warning, message);
o,qq*}= }
P}"=67$ hSAdD! /// <summary>
oVZI([O /// 将提示信息记录到Win2000/NT事件日志中
XotiKCk|Aq /// <param name="message">需要记录的文本信息</param>
T'i^yd}*v /// </summary>
GK6/S_l%D+ public static void WriteInfo(String message)
{*yFTP"93 {
ws/e~ T<c WriteLog(TraceLevel.Info, message);
69q#Zw[,, }
h D5NX /// <summary>
^Pwtu /// 将跟踪信息记录到Win2000/NT事件日志中
l<3X:) /// <param name="message">需要记录的文本信息</param>
Zc!rL0T /// </summary>
PI G3kJ public static void WriteTrace(String message)
nm#ISueh {
y
J|/^qs WriteLog(TraceLevel.Verbose, message);
?.{SYaS }
IL0e:-@!0 d9=i{i3 /// <summary>
wak:"B[ /// 格式化记录到事件日志的文本信息格式
8n&Gn%DvX /// <param name="ex">需要格式化的异常对象</param>
CJa`[;i0y /// <param name="catchInfo">异常信息标题字符串.</param>
;{L ~|q J /// <retvalue>
s78MXS?py /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
/]1$Soo /// </retvalue>
9ZJn 8ki /// </summary>
iY,FfuE public static String FormatException(Exception ex, String catchInfo)
']bw37_U, {
!+Fr U'^ StringBuilder strBuilder = new StringBuilder();
~:krJ[= if (catchInfo != String.Empty)
|l-~,eRvi5 {
n2V
$dF4m strBuilder.Append(catchInfo).Append("\r\n");
!-veL1r }
.IU\wN strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
V?L8BRnV return strBuilder.ToString();
eG_@WLxwD }
P:#KBF;a u~xfI[8C /// <summary>
p3,m), /// 实际事件日志写入方法
7!;H$mxP /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
tE8aL{<R /// <param name="messageText">要记录的文本.</param>
=vs]Kmm /// </summary>
;x|7"lE private static void WriteLog(TraceLevel level, String messageText)
7gc?7TM {
g:fkM{"{ try
Q 2>o+G {
Z35(f0b EventLogEntryType LogEntryType;
[C#H _y( switch (level)
29HyeLB@ {
fi~jT"_CI case TraceLevel.Error:
L9$`zc LogEntryType = EventLogEntryType.Error;
j.ZXLe~ break;
m9=93W?
case TraceLevel.Warning:
V7"^.W* LogEntryType = EventLogEntryType.Warning;
&J\<"3 break;
#|"M case TraceLevel.Info:
w{WEYS LogEntryType = EventLogEntryType.Information;
RsW4 '5 break;
dw>1Ut{"3 case TraceLevel.Verbose:
5{xK&[wR* LogEntryType = EventLogEntryType.SuccessAudit;
der\"?_. break;
Qt\^h/zjG default:
kQ`p\}7_ LogEntryType = EventLogEntryType.SuccessAudit;
`]=0oDG:1! break;
S}P rgw/ }
3UX6 Y]E3 ?[=OQ/E EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
af'gk&% //写入事件日志
U1W8f|u eventLog.WriteEntry(messageText, LogEntryType);
g3
opN>W ^kK% 8 u }
T0 {X, catch {} //忽略任何异常
v?YxF} }
aL&nD1f=!- } //class ApplicationLog
'!F'B: }
s6QD^[ Kk).KgR 12.Panel 横向滚动,纵向自动扩展
"vX\Q rL <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
F/cA tT.M? \hWac%# 13.回车转换成Tab
Q*hXFayx <script language="javascript" for="document" event="onkeydown">
:'FCeS9 if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
ZfXgVTJ` event.keyCode=9;
J@OK"%12 </script>
KE6XNG3 _\gCdNrD onkeydown="if(event.keyCode==13) event.keyCode=9"
Tol"D2cyf x!6<7s 14.DataGrid超级连接列
(((|vI3 < DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
\
B'AXv6 8F&Y; 15.DataGrid行随鼠标变色
Iw^Q>MrT private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
V%B~ q`4 {
dZo x;_b if (e.Item.ItemType!=ListItemType.Header)
+sV~#%% {
1aZGt2; e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
^#XQ2UN e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
%OsxXO? }
+i#s |kKs\ }
~6K.5t7 DJ9x?SL@KD 16.模板列
PuhvJHT <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
xS:n <ITEMTEMPLATE>
U~d%5?q <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
cvQAo| </ITEMTEMPLATE>
7xFZJ# </ASP:TEMPLATECOLUMN>
=\k:] F+ 7*SImv6 <ASP:TEMPLATECOLUMN headertext="选中">
$fBj}\o <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
M~n./wyC <ITEMTEMPLATE>
1rS8+!9C <ASP:CHECKBOX id="chkExport" runat="server" />
(AX$Svw </ITEMTEMPLATE>
uQ&> Wk <EDITITEMTEMPLATE>
S{3c}>n <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
z4~p(tl </EDITITEMTEMPLATE>
(L1F],Au </ASP:TEMPLATECOLUMN>
>_\[C?8 `H 'wz7 后台代码
/2
hk 9XM protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
&po!X ) {
EqGpo_ //改变列的选定,实现全选或全不选。
Sfa=AV7K CheckBox chkExport ;
1*|/N}g) if( CheckAll.Checked)
)Ay 90Wt {
.lq83;
k foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
&r,)4q+ {
g~$UU(HX chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
>t<\zC|~w chkExport.Checked = true;
C,A/29R,s }
4UUbX }
#a2gRg else
( $>m]| {
7xQ:[P!G+ foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
hu1ZckIw? {
rL&Mq}7QK chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
jEwt1S V chkExport.Checked = false;
c&x1aF "B }
}-J0cV }
!A1~{G2VL_ }
?
|#dGk g *G7cF 17.数字格式化
P-nhG H Tv#2WX 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
#0hqfs <%#Container.DataItem("price","{0:¥#,##0.00}")%>
5@-H8* Yufjy=! int i=123456;
[3I|MZ string s=i.ToString("###,###.00");
JT!9LNh;R` .c:h!-D; 18.日期格式化
sei2\l8q FUlhEH 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
Ibu9AwPm {~uTi>U 显示为: 2004-8-11 19:44:28
D,R',(3 Wy*+8~@A 我只想要:2004-8-11 】
dgIH`<U$ <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
4 ob W> \gB~0@[\7 应该如何改?
#r]Z2Y] .)_2AoT7[ 【格式化日期】
~#jiX6<I 7Xu# |k 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
zA8@'`Id wpN3-D 【日期的验证表达式】
fISK3t/=C _ilitwRN3 A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
%Zbm%YaW5 ^((\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})))?$
/PeT4hW} eU@Mv5&6 B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
5 7t.Ud ^\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]))$
1kw*Q: )dqNN tS 【大小写转换】
mJ=V<_ HttpUtility.HtmlEncode(string);
7s#8-i HttpUtility.HtmlDecode(string)
oI[rxr xVbRCu#Z 19.如何设定全局变量
1:<(Q2X% rhy-o? Global.asax中
6%ofS8[ Kx&"9g$ Application_Start()事件中
7=9>yba)^ d1/9
A-{ 添加Application[属性名] = xxx;
@ci..::5 BWy-R6br 就是你的全局变量
RJzIzv99m kHylg{i{" 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
#IZh}*$ r A(A$VR HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
5cinI^x)f MTZCI} 【ASPNETMENU】点击菜单项弹出新窗口
Z#-N$%^F kx?Yin8K 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
MO0NNVVi%U <?xml version="1.0" encoding="GB2312"?>
Y`(Ri-U4 <MenuData ImagesBaseURL="images/">
u*;H$& <MenuGroup>
Wm`*IBWA <MenuItem Label="内参信息" URL="Infomation.aspx" >
p\&/m <MenuGroup ID="BBC">
h!K"
;qw <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
L;u 5 <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
Wp8>Gfb2 ......
2Kz$y
JTp E
V)H>kM 最好将你的aspnetmenu升级到1.2版
#jrlNg4( v9-4yZU^WR 21.读取DataGrid控件TextBox值
IPK1g3Z foreach(DataGrid dgi in yourDataGrid.Items)
xh$yXP0/ {
*oz#YGNm TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
2O
Ur">_ tb.Text....
1x;@BV
}
|
U"fhG=g EI6kBRMo 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
su%-b\8K ?x&}ammid 〖思归〗
jIT|Kk&] <asp:TemplateColumn HeaderText="数量">
qe{;EH* <ItemTemplate>
8IRKCuV <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
n|&=6hiI onkeyup="javascript:DoCal()"
X5[vQ3^ />
anbw\yh8 \f?
K74 <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
`|?<KF164 </ItemTemplate>
"WQ6[;&V </asp:TemplateColumn>
*)-@'{]u B BLt58LYGX <asp:TemplateColumn HeaderText="单价">
UtTlJb{-j <ItemTemplate>
CU\gx*=E <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
{%u^O/M onkeyup="javascript:DoCal()"
j67ppt />
ah,f~.X_| $M,<=.oT <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
SDO:Gma 'LPyh ;!f </ItemTemplate>
te-xhJ&K </asp:TemplateColumn>
+] ;WN 6`Tx meIP <asp:TemplateColumn HeaderText="金额">
3=sBe HL <ItemTemplate>
k+-?b(z)$ <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
{c9 fv H </ItemTemplate>
#J&3Zds </asp:TemplateColumn><script language="javascript">
5tpC$4m function DoCal()
2I_ yUt- {
'hU5]}= var e = event.srcElement;
)~=8Ssu var row = e.parentNode.parentNode;
~nU9j"$ var txts = row.all.tags("INPUT");
-o%? ]S if (!txts.length || txts.length < 3)
r
YKGX?y return;
zY:3*DiM f;BY%$ var q = txts[txts.length-3].value;
D1Zy Js# var p = txts[txts.length-2].value;
}i"[5: $Bz};@ if (isNaN(q) || isNaN(p))
XH~(=^/_ return;
4bA^Gq 7:?\1a q = parseInt(q);
FqA4 OU p = parseFloat(p);
%AA&n*m ]b%U9hmL^f txts[txts.length-1].value = (q * p).toFixed(2);
^.8~}TT-U }
A1+:y,wXs </script>
HP]5"ziA OS@uGp=
iZy>V$Aq dB6,pY( u'#/vT#l 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。
!;|#=A9 page_load
F*@2 ) page.smartNavigation=true
iKrk?B< we`BqZV 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 ?
SXqB<j$.; private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
tdxzs_V,- {
;hDk gp for(int i=0;i<e.Item.Cells.Count-1;i++)
uxD3+Q if(e.Item.ItemType==ListItemType.EditType)
Gh=I2GSo {
Jk(V ] e.Item.Cells.Attributes.Add("Width", "80px")
/Z:NoTGn }
KF+r25uy[+ }
aUEr& $ ,b!D8{W"N 26.对话框
V9$T=[ private static string ScriptBegin = "<script language=\"JavaScript\">";
|;~=^a3?q private static string ScriptEnd = "</script>";
)m;*d7l~p JK<[]>O public static void ConfirmMessageBox(string PageTarget,string Content)
}wiyEVAh{ {
*w4#D:g string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
v(yJGEf0 %P s.r{%{ ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
C @<T(`o g@!U^mr*3 Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
<`pNdy4 ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
G$TO'Ciu: //Response.Write(strScript);
p% mHxYP }
Xrb7.Y0d ?{"r( 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
7nnF!9JOv K9Mz4K_ 1.1 取当前年月日时分秒
2YZ>nqy currentTime=System.DateTime.Now;
.c}+kHv hJ`Gu7 1.2 取当前年
q-;Y }q int 年= DateTime.Now.Year;
]m1p<*0I$ SgxrU&:: 1.3 取当前月
i%.NP;Qq]M int 月= DateTime.Now.Month;
njxLeDe- aBReIK o 1.4 取当前日
:<zIWje int 日= DateTime.Now.Day;
tlp,HxlP ZN)EbTpc\a 1.5 取当前时
<(>t"< int 时= DateTime.Now.Hour;
9.\SeJ8c VrPsy) J68 1.6 取当前分
p*0[:/4 int 分= DateTime.Now.Minute;
SZe55mK ` _"Bj`5S 1.7 取当前秒
M#o.O?.` int 秒= DateTime.Now.Second;
``jNj1t{} 1!(lpp 1.8 取当前毫秒
Cs>` f,o int 毫秒= DateTime.Now.Millisecond;
Sk7R;A xSD*e 0
28.自定义分页代码:
M;<!C%K> J$yq#LBbR@ 先定义变量 :
G-)e(u
public static int pageCount; //总页面数
K0(
S%v|,} public static int curPageIndex=1; //当前页面
iS+"Jsz .kFO@: 下一页:
7s6+I_n if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
Ed u(dZbKg {
%k4Qx5`?d DataGrid1.CurrentPageIndex += 1;
sPZwA0% curPageIndex+=1;
nC,QvV }
b]z_2h~` 1Zc=QJw@ bind(); // DataGrid1数据绑定函数
^,I2@OS 'k\j[fk/K 上一页:
?&wrz if(DataGrid1.CurrentPageIndex >0)
R&(OWF;~, {
WcqR; Nm DataGrid1.CurrentPageIndex += 1;
$Ah
p4oiE curPageIndex-=1;
KJQ8Yhq }
Ll; v[Y RBf#5VjOG! bind(); // DataGrid1数据绑定函数
FCNYfjB% 5n2!Y\ 直接页面跳转:
/xJD/"Y3& int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
w*XM*yJHU &6OY^6< if(a<DataGrid1.PageCount)
af |mk@ {
nE8z1hBUq this.DataGrid1.CurrentPageIndex=a;
"|Q.{(|kO1 }
E<+ G5j ~{lb`M^]h bind();
X<8|uP4 I ==)a6^ 29.DataGrid使用:
dlfjx 5&Yt=)c\ 添加删除确认:
zs]ubJC@ private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
>&;J/ME {
]'Eg2(wy foreach(DataGridItem di in this.DataGrid1.Items)
zGU MH7 M {
~*1>)P8]# if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
iT==aJ=~/& {
V WZpEi ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
2o<*rH }
gq+0t }
>I4BysR }
ho{%7\ neM)(` gp 样式交替:
=nCA=-Jv ListItemType itemType = e.Item.ItemType;
(.!9 H( .9tuA if (itemType == ListItemType.Item )
udUc&pX {
79>x/jZka e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
7I w^ e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
#sCR} }
WMC^G2 n else if( itemType == ListItemType.AlternatingItem)
3G4WKg.^ {
1W>/4l e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
h?dSn:Y\? e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
j}.gK6Yq* }
Uzvd*>mv YQ:$m5ai 添加一个编号列:
j;}-x1R DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
s:6K'* DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
jGo%Aase ZVH 9je for(int i=0;i<dt.Rows.Count;i++)
)x\%*ewY {
Xk|a%%O*H dt.Rows["number"]=(i+1).ToString();
i/_rz.c~3 }
A<c<!N i5le0lM DataGrid1.DataSource=dt;
@/01MBs; DataGrid1.DataBind();
(ux9"r^g;x 3M^`6W[; DataGrid1中添加一个CheckBox,页面中添加一个全选框
S:2 xm8
i private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
ept:<!4 {
{9@E[bWp# foreach(DataGridItem thisitem in DataGrid1.Items)
\Ff]}4 {
]=|iO~WN ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
`N7erM }
&8%^o9sH }
Iw$T'I+4W w3fD6$ 将当前页面中DataGrid1显示的数据全部删除
JqN$B\J, foreach(DataGridItem thisitem in DataGrid1.Items)
NXOvC!< {
e \kR/<L if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
2gvS`+<TP {
4Im}!q5;:< string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
)OlYz!#? Del (strloginid); //删除函数
|~Awm" }
u91 }
Jx&+e,OST x41 t=E]( 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
"1P2`Ep; _ -ec(w~/ 在Application_Start中添加以下代码:
`Sj8IxO Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
Frhm4H%,_R AppSettings["ConnStr"].ToString();
bx" .<q ( hg+;!|ha 31. 变量.ToString()
FFN.9[Ly k[1[Y{n. 字符型转换 转为字符串
s, #$o3 12345.ToString("n"); //生成 12,345.00
<dk9n}y<, 12345.ToString("C"); //生成 ¥12,345.00
hB:+_[=Kj. 12345.ToString("e"); //生成 1.234500e+004
K^I$05idi 12345.ToString("f4"); //生成 12345.0000
b]8\%=d 12345.ToString("x"); //生成 3039 (16进制)
I= z+`o8 12345.ToString("p"); //生成 1,234,500.00%
.lcgM jd+HIR 32、变量.Substring(参数1,参数2);
!wrAD"l*@ 9I|Q`j?p` 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);
{#{nU NW Oo\~'I 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)
$i
`@0+: <SCRIPT language="javascript">
2[Qzx%Vp <!--
+hWeN&A function gook(pws)
xJvalb {
wz'in frm.submit();
B)-P#,} }
R?*-ZI[>w //-->
%#]/]B/4 ?H!X
p </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
P6tJo{l8w <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
I|mxyyf <tr>
k"FY
&;G(G <td>
Lr>4~1:` <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
{
lZ<'p <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
1T3YFt@&I <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
4MgG] }M\G <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
wK%x|%R[ <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
/z(s1G. 9+>%U~U< </td>
KEr?&e u-dF~.x </tr>
E~Y%x/oX {O[ !*+O </form>
]<O- A5dH*< } 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
gm&O-N"=U iB'g7&,L 下面是获取用户输入的登陆信息的代码:
SR\$ fmo string name;
Fg^zz*e name=Request.QueryString["EmailName"];
[
**F %{P." ki try
-| t|w:& {
OoAZ t int a=name.IndexOf("@",0,name.Length);
gkv,Om f_user.Value=name.Substring(0,a);
e}"k8 ./ f_domain.Value=name.Substring(a+1,name.Length-(a+1));
1]jUiX=T f_pass.Value=Request.QueryString["Psw"];
E!>l@
ki }
"}UYsXg M$LzV}k catch
7m9T' {
ngaQa-8w Script.Alert("错误的邮箱!");
),I7+rY Server.Transfer("index.aspx");
AzBpQb* }