1. 打开新的窗口并传送参数:
@R5jUPUVV u,zA^% 传送参数:
}!5x1F! response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
B! `Dj,_ Zu4|1W 接收参数:
L|y4u;-Q string a = Request.QueryString("id");
|WopsV
% string b = Request.QueryString("id1");
pjC2jlwm* b7
pD#v 2.为按钮添加对话框
X5@SLkJ-` Button1.Attributes.Add("onclick","return confirm(’确认?’)");
^w0V{qF{ button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
61Z#;2] (,5oqU9s@ 3.删除表格选定记录
O'6zV"<P int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
=!axQ[)A string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
Zz" b&`K 7}r!&Eb 4.删除表格记录警告
TZ`@pDi private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
egBjr? {
+GgJFBl switch(e.Item.ItemType)
AL%gqt] {
E8TJ*ZU case ListItemType.Item :
U~~Y'R\NU case ListItemType.AlternatingItem :
)KZ1Z$< case ListItemType.EditItem:
i6"/GSA
TableCell myTableCell;
IETdL{`~ myTableCell = e.Item.Cells[14];
q P<n< LinkButton myDeleteButton ;
Sv*@ 3x myDeleteButton = (LinkButton)myTableCell.Controls[0];
ISQC{K']J myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
}Pm>mQZ}, break;
-S7PnR6 default:
y8Q96zi break;
QHt;c }
49)A.Bh&! @%4MFc0`! }
jpL'y1@Ut $jt UQ1 5.点击表格行链接另一页
\5+?wpH private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
k,EI+lC X {
{U$qxC]M //点击表格打开
v&6=(k{E@R if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
-mSiZ e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
l!n<.tQW }
] gN]Cw\L Z_Gb9 双击表格连接到另一页
L{v^: x.V6C0|6" 在itemDataBind事件中
Cd4a7<- if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
4Xna}7 {
<OKzb3e string OrderItemID =e.item.cells[1].Text;
x+kP,v ...
-ff|Xxar{ e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
-{Lc?= }
F1V[8I.0 ?)B"\#`t 双击表格打开新一页
<O`yM2/pS if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
U Ox$Xwp5& {
-IBf;"8f string OrderItemID =e.item.cells[1].Text;
Sm(QgZO[4 ...
9Fe(],AzF e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
?
x1"uH }
(S:+#v traJub ★特别注意:【?id=】 处不能为 【?id =】
5lp
L$ 6.表格超连接列传递参数
L*ZC`
.h <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
{x{/{{wzv <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
G P"(+5 7g-#v'.N 7.表格点击改变颜色
; Q-f6)+& if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
fIrl?X'] {
x\=2D<@az e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
gTI!b this.style.color=’buttontext’;this.style.cursor=’default’;");
l2DhFt$!= }
T [w]w
e*O-LI2O 写在DataGrid的_ItemDataBound里
3Lxk7D>0c if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
\]y4e^FZZ {
hcQvL> e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
ap;tggi(H this.style.color=’buttontext’;this.style.cursor=’default’;");
zVLv-U/=d e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
'4PAH2&n }
,&S^R yc U @Il:\I [OI&_WIw 8.关于日期格式
7wt2|$Qz #1MEmt 日期格式设定
,2F4S5F~rC DataFormatString="{0:yyyy-MM-dd}"
8^fkY'x JPS7L} Kv 我觉得应该在itembound事件中
M Cam c e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
{ VC4rA &9CKI/K: 9.获取错误信息并到指定页面
F+;{s(wx 1a#oJU 不要使用Response.Redirect,而应该使用Server.Transfer
B,SH9, qyP|`Pm4 e.g
zy(i]6 // in global.asax
2 }QD> protected void Application_Error(Object sender, EventArgs e) {
0y$aGAUm if (Server.GetLastError() is HttpUnhandledException)
sPCp20x:y8 Server.Transfer("MyErrorPage.aspx");
>uN`q1?l' \Vis //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
BX[92~Bq }
KKm0@Y CroI,=a&, 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
gf]biE"k ^(ks^<} 10.清空Cookie
VjU;[ Cookie.Expires=[DateTime];
$9znRTFEj Response.Cookies("UserName").Expires = 0
)!1; = J@ x%TA 11.自定义异常处理
Sd;/yC 8 //自定义异常处理类
3F,$}r# using System;
_(J 7^rN using System.Diagnostics;
{mPaloA }?,Gn]] namespace MyAppException
(7RxCo=X {
Cc:4n1|]> /// <summary>
fP`g#t)4Tu /// 从系统异常类ApplicationException继承的应用程序异常处理类。
/^~3Ib8Fw+ /// 自动将异常内容记录到Windows NT/2000的应用程序日志
lAsDdxB` /// </summary>
rs01@ public class AppException:System.ApplicationException
,63hO.4M {
q#W|*kL3 public AppException()
7<Fp3N 3 {
pv2_A if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
DXlP(={* }
E3gR%t .O[RE_j public AppException(string message)
`BKo`@ {
G| pZ LogEvent(message);
}$W4aG*[ }
a^qLyF&F \Q"o\:IoIT public AppException(string message,Exception innerException)
DG8LoWZ {
>;',U<Wd LogEvent(message);
$AAv%v if (innerException != null)
?2VY^7N[ {
i^ 9PiP|U LogEvent(innerException.Message);
OYGh!sW }
(yFR;5Fo }
@R=gJ:&a hd~X c //日志记录类
.s31D%N using System;
CW k#Amt. using System.Configuration;
%iWup: using System.Diagnostics;
q/xMM`{ using System.IO;
0$3\DS<E using System.Text;
~\tI9L?|A using System.Threading;
4l2i'H 6#XB'PR2p namespace MyEventLog
ODK$G
[- {
&?^S`V8R* /// <summary>
E
3b`GRay /// 事件日志记录类,提供事件日志记录支持
!3>(fj+QS /// <remarks>
<@FOqi{o{ /// 定义了4个日志记录方法 (error, warning, info, trace)
<Vyv)#32o3 /// </remarks>
orn9;|8q /// </summary>
p<>%9180!F public class ApplicationLog
<,d .`0:y {
^yH!IRRAq /// <summary>
s z /// 将错误信息记录到Win2000/NT事件日志中
2wE?O^J /// <param name="message">需要记录的文本信息</param>
E"5
zT1d /// </summary>
#q1Qa_LXc public static void WriteError(String message)
U'S}7gya {
]Q=D'1MM WriteLog(TraceLevel.Error, message);
gB@Xi* }
2"lD Kjj 43pQFDWa /// <summary>
<=8REA? /// 将警告信息记录到Win2000/NT事件日志中
6k;__@B, /// <param name="message">需要记录的文本信息</param>
*vFVXJo /// </summary>
7QP%Pny% public static void WriteWarning(String message)
x[7jm"Pz {
fk)ts,p? WriteLog(TraceLevel.Warning, message);
tS,nO:+x }
|du@iA]dP e2Sm.H ' /// <summary>
LtKiJ.j?A /// 将提示信息记录到Win2000/NT事件日志中
eRQ}`DjTk /// <param name="message">需要记录的文本信息</param>
7
Xe|P1@) /// </summary>
z]ZhvH7- public static void WriteInfo(String message)
vlth\[ {
3DnlXH(h1 WriteLog(TraceLevel.Info, message);
9^h\vR|]S }
mD-qJ6AM /// <summary>
<`*}$Zh /// 将跟踪信息记录到Win2000/NT事件日志中
Pk[:+. f( /// <param name="message">需要记录的文本信息</param>
vJDK]p<} /// </summary>
obRR)) public static void WriteTrace(String message)
U>6MT@\ {
!)RND 6. WriteLog(TraceLevel.Verbose, message);
2yR*<yj }
Tx?,]c,(u X-9>;Mb~y /// <summary>
N-|E^XIV /// 格式化记录到事件日志的文本信息格式
<b>@'\w9 /// <param name="ex">需要格式化的异常对象</param>
*@=in7*c /// <param name="catchInfo">异常信息标题字符串.</param>
Mk"+*G /// <retvalue>
Z`nHpmNM /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
5R}Qp<D[^ /// </retvalue>
-4`Wkkhu /// </summary>
LY2oBX@fC public static String FormatException(Exception ex, String catchInfo)
|;_NCy8i3X {
%se4aeOrX StringBuilder strBuilder = new StringBuilder();
1VK?Svnd if (catchInfo != String.Empty)
<qN0Q7 {
T!5m'Q. strBuilder.Append(catchInfo).Append("\r\n");
F+Rtoq| }
8*3o9$Pj strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
pDb5t> return strBuilder.ToString();
'gk.J }
B
PTQm4TN W-q2|NK /// <summary>
G$pTTT6# /// 实际事件日志写入方法
$,q~ q^0 /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
Htn=h~U`z /// <param name="messageText">要记录的文本.</param>
,~8:^*0s /// </summary>
!/+ZKx("9 private static void WriteLog(TraceLevel level, String messageText)
o9ZHa {
GVk&n"9kp try
ES!$JWK| {
/PG+ s6 EventLogEntryType LogEntryType;
=3OK3| switch (level)
km2('t7? {
;LE4U OK case TraceLevel.Error:
}r$&"wYM LogEntryType = EventLogEntryType.Error;
q65KxOf` break;
$E3-</ f case TraceLevel.Warning:
e*p7(b- LogEntryType = EventLogEntryType.Warning;
zWpJ\/k~ break;
zbK=yOIOd case TraceLevel.Info:
/^^t>L LogEntryType = EventLogEntryType.Information;
XL@i/5C[ break;
~K}iVX case TraceLevel.Verbose:
\Km!#: LogEntryType = EventLogEntryType.SuccessAudit;
Y-\hV6v6 break;
}S51yDV G_ default:
tFt56/4 LogEntryType = EventLogEntryType.SuccessAudit;
zY~ break;
5vs~8|aRo }
nf&PDv1 ;q]Jm EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
dfY(5Wc+f //写入事件日志
GL$!JKWp eventLog.WriteEntry(messageText, LogEntryType);
c7Sa|9*dR j78WPG }
&v|Uy}h&%1 catch {} //忽略任何异常
=!T@'P? }
k8H@0p } //class ApplicationLog
r!SMF]?SJ }
^Gt&c_gH u~n*P``{ 12.Panel 横向滚动,纵向自动扩展
P'.MwS <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
.zQ:u{FT <WFA3 13.回车转换成Tab
G n"]<8yl~ <script language="javascript" for="document" event="onkeydown">
|N_tVE if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
m3W:\LTTp event.keyCode=9;
ST$~l7p </script>
)3# gpM Fw5|_@&k onkeydown="if(event.keyCode==13) event.keyCode=9"
_+PiaJ&' /a.4atb0 14.DataGrid超级连接列
?q a DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
't:$Lx F: %-x=q 15.DataGrid行随鼠标变色
l?pF?({ private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
lM1~K {
4?Pdld if (e.Item.ItemType!=ListItemType.Header)
FJ0Ity4u6 {
gU\pP,a e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
gY\X? e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
]j> W9n? }
$/;D8P5/&= }
nZZNx
]D?// 16.模板列
ta"uxL\gge <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
R<.<wQ4I <ITEMTEMPLATE>
2%| <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
Aq'yr,
</ITEMTEMPLATE>
Z(DCR/U=(> </ASP:TEMPLATECOLUMN>
~C[p}MED gGF]Dq <ASP:TEMPLATECOLUMN headertext="选中">
p3>(ZWPNV <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
n%'M?o]DF <ITEMTEMPLATE>
TNe,'S,% <ASP:CHECKBOX id="chkExport" runat="server" />
Z9X<W` </ITEMTEMPLATE>
MzjV>. <EDITITEMTEMPLATE>
$ N`V%<W <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
9U[Gh97Sf </EDITITEMTEMPLATE>
|dIP &9 </ASP:TEMPLATECOLUMN>
Qn=3b:S- 7P1G^) 后台代码
a&:1W83 protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
9V&}% {
PdiP5S }/ //改变列的选定,实现全选或全不选。
@}[ >*Xy% CheckBox chkExport ;
Mx9#YJ?t~ if( CheckAll.Checked)
PWeCk2 xH {
U%%fKL=S foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
x/~qyX8vo {
$VEG1]/svp chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
_|<kKfd? chkExport.Checked = true;
l-s%3E3 }
cs[_TJo }
EWOS6Yg7 else
p7 s#j {
kc*zP= foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
)Z6bMAb0'N {
ZEY="pf chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
\8j5b+ chkExport.Checked = false;
q5
eyle6 }
#I>
c$dd }
YywiY).]@ }
WM y97*L< +*u'vt? 17.数字格式化
590.mCm &gF*p 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
m]H[$Q <%#Container.DataItem("price","{0:¥#,##0.00}")%>
OAigq6[, Zop3[- int i=123456;
bVfFhfh* string s=i.ToString("###,###.00");
E/bIq}R6 5cc;8i 18.日期格式化
J%VcvBaJm 0$=Uhi
【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
?O(@BT BR&T,x/d 显示为: 2004-8-11 19:44:28
EY3x o-H 'I$-h<W 我只想要:2004-8-11 】
8:#\g <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
RF3?q6j , (EW<Ggi 应该如何改?
5>9KW7^L i4<&zj}) 【格式化日期】
-,xCUG<g :Y? L* 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
;8F|Q<`pV /zt9;^e 【日期的验证表达式】
\9;SOA v vjo@aY.x A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
?yAp&Ad ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
zk6al$3R )1CYs4lp B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
)"( ojh ^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$
|gXtP- JA]TO(x 【大小写转换】
b:%z<vo HttpUtility.HtmlEncode(string);
$qz(9M(m# HttpUtility.HtmlDecode(string)
-dRnozs6W "n<rP 3y 19.如何设定全局变量
7JC^+rk c}XuzgSY Global.asax中
2bJqZ,@ Lj]I7ICNh Application_Start()事件中
k8>(-W"A }s*H|z 添加Application[属性名] = xxx;
VSm[80iR0 01N]|F: 就是你的全局变量
a#i85su ^pI&f{q 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
7CKpt.Sz6 cZ8lRVaWW HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
|\HYq`!g%7 ~Te9Lq | 【ASPNETMENU】点击菜单项弹出新窗口
g(X-]/C{ 0wFa7PyG? 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
L&D+0p^lI <?xml version="1.0" encoding="GB2312"?>
P<.
TiF?@ <MenuData ImagesBaseURL="images/">
T/[8w <MenuGroup>
+jpaBr-O# <MenuItem Label="内参信息" URL="Infomation.aspx" >
$x5,Oe n <MenuGroup ID="BBC">
b*;zdGX.A9 <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
N3M:|D <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
N+)gYb6h ......
]YQ!i@Y f+}Rj0A 最好将你的aspnetmenu升级到1.2版
;HKb =O~ J 21.读取DataGrid控件TextBox值
)^Ha?;TS foreach(DataGrid dgi in yourDataGrid.Items)
iTX:*$~I {
1\'?. TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
R1!F mZW8 tb.Text....
;f]p`!]
3 }
^A&i$RRO jwP}{mi* 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?
;q=0NtCS=4 ^[UWG^d 〖思归〗
g]fds Zv <asp:TemplateColumn HeaderText="数量">
"ITC P<+ <ItemTemplate>
AD$$S.zoD< <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
|3Fo4K%+ onkeyup="javascript:DoCal()"
Mz?xvP?z />
fG *1A\t] P4\{be>e <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
"PFczoRZ </ItemTemplate>
E?VPCx </asp:TemplateColumn>
EnM }H9A 9S<87sO <asp:TemplateColumn HeaderText="单价">
FJ/>=2^B <ItemTemplate>
PIZnzZ@Z; <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
-d j9(~?^ onkeyup="javascript:DoCal()"
v?BVUH>#9 />
J
8!D."'Q0 zRO-oOJ <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
4$5d*7 jY~W* </ItemTemplate>
:Dh\ </asp:TemplateColumn>
j{U#g8 LnwI 7uvq <asp:TemplateColumn HeaderText="金额">
xJ-(]cO' <ItemTemplate>
0
|/:m <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
fbl8:c)I </ItemTemplate>
U{ZE|b.?b </asp:TemplateColumn><script language="javascript">
r8R]0\ function DoCal()
YmBo/I M {
]+U:8* var e = event.srcElement;
)A@
}mIs" var row = e.parentNode.parentNode;
8+7n"6GY2/ var txts = row.all.tags("INPUT");
tQrF A2F if (!txts.length || txts.length < 3)
.C6wsmQ return;
@Cnn8Y&' {OH
@z!+d var q = txts[txts.length-3].value;
b I%Sq+"} var p = txts[txts.length-2].value;
pBZf=!+E 2qA"emUM if (isNaN(q) || isNaN(p))
+t9$*i9`L return;
Czl4^STiC z<3{.e\e q = parseInt(q);
?Aq
\Gr p = parseFloat(p);
].TAZ-4s Hm>7|! txts[txts.length-1].value = (q * p).toFixed(2);
mJ'Q9x" }
(Xak;Xum1 </script>
-a[[1 [Iwb7a0p m
L#%H( lmsO
6=I4F 35;UE2d)< 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。
>}uDQwX8 page_load
?k|}\l[X1 page.smartNavigation=true
D2,2Yy5y H'2J! /V 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 ?
,qj1"e private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
n#US4&uT4A {
f;PPB@ :`$ for(int i=0;i<e.Item.Cells.Count-1;i++)
~.:9~(2; if(e.Item.ItemType==ListItemType.EditType)
Tz`O+fx& {
k@[P\(a3b e.Item.Cells.Attributes.Add("Width", "80px")
J~e%EjN5e }
T#o?@; }
o+wG69 b`9J1p.; 26.对话框
ym]12PAU5 private static string ScriptBegin = "<script language=\"JavaScript\">";
5PcN$r"P private static string ScriptEnd = "</script>";
KTmduf7DL XEUy,>mR public static void ConfirmMessageBox(string PageTarget,string Content)
F2N)|C< {
sy\w ^] string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
wU"0@^k]< k2-:!IE ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
~!Ar`=
[ o 94]:$=~ Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
Vgj&hdbd ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
A>bpP //Response.Write(strScript);
ycD}7 }
~xp(k SU`RHAo 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
$-=QT X TJ5g?#Wul 1.1 取当前年月日时分秒
7CGxM currentTime=System.DateTime.Now;
^zfO=XN l%f&vOcd 1.2 取当前年
].!^BYNht int 年= DateTime.Now.Year;
ytDp
4x<W) 76} a 1.3 取当前月
`R\nw)xq int 月= DateTime.Now.Month;
Miw*L;u@W xn&$qLB 1.4 取当前日
ask76
e int 日= DateTime.Now.Day;
x!i(M>P |_}
LMkU) 1.5 取当前时
,Fv8&tR int 时= DateTime.Now.Hour;
_MI8P/ 4PcsU HR 1.6 取当前分
H[x$65ND int 分= DateTime.Now.Minute;
p`PBPlUn 0DZ}8"2 1.7 取当前秒
)' hOW*v int 秒= DateTime.Now.Second;
Q4[^JQsR2 M'gL_Xsei 1.8 取当前毫秒
(b*PDhl`+ int 毫秒= DateTime.Now.Millisecond;
zK_+UT 82>90e(CH] 28.自定义分页代码:
XMLJX~
oPbxe 先定义变量 :
[bK5q;#U4 public static int pageCount; //总页面数
hi.`O+; public static int curPageIndex=1; //当前页面
fDzG5}i v0 3 下一页:
^'Z?BK if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
} vzNh_ {
C3hQT8~ DataGrid1.CurrentPageIndex += 1;
4[ .DQ#r curPageIndex+=1;
p-S&Wq }
45qSt2 K.R4.{mo bind(); // DataGrid1数据绑定函数
nG~#o Dus [N<
w 上一页:
A@?Rj if(DataGrid1.CurrentPageIndex >0)
?b,x;hIO {
jfOqE*frl! DataGrid1.CurrentPageIndex += 1;
KT9!R curPageIndex-=1;
*Bm7>g6 }
C@ns`Eh8w BB .^[:,dA bind(); // DataGrid1数据绑定函数
*^@{LwY\M V9 J`LQ\0 直接页面跳转:
d$?sS9"8( int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
oR1HJ2>Z1 %Ums'<xJ if(a<DataGrid1.PageCount)
e6(Pw20)s {
[e6zCN^t this.DataGrid1.CurrentPageIndex=a;
;WqWD-C }
vUNmN2pRJ Nj^:8]D)0 bind();
ib,BYFKEW fK?/o]vq 29.DataGrid使用:
"B34+fOur fp)%Cr 添加删除确认:
[J-uvxD private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
knS(\51A {
ER'zjI>t@ foreach(DataGridItem di in this.DataGrid1.Items)
{: H&2iF {
~rl,Hr3Zo if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
\8}!aTC {
&%\H170S ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
tEbR/?,GI }
~TvKMW6/# }
MJ..' $>TC }
6A;,Ph2 x&4gy%b 样式交替:
O'L9 s>B ListItemType itemType = e.Item.ItemType;
$[*QsU%% CwL8-z0 Jn if (itemType == ListItemType.Item )
>69- [#P! {
6 *GR_sMm e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
Ks>l=5~v| e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
}NgevsV>; }
kHhxR;ymA7 else if( itemType == ListItemType.AlternatingItem)
{)5tov1 {
n]Z() "D e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
|vUjoa'.7E e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
v&]k8Hc- }
~5@bWJ wa f)S= 添加一个编号列:
":meys6t# DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
mFa%d8Y DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
\kS:u}Ip! oz[Mt
i* for(int i=0;i<dt.Rows.Count;i++)
H-g
CY|W {
|3SM dt.Rows["number"]=(i+1).ToString();
"+{>"_KV }
gT&s &0_7 ~_GW DataGrid1.DataSource=dt;
|~d8j'rt DataGrid1.DataBind();
/T\'&s3D+ .VG5 / 6zp DataGrid1中添加一个CheckBox,页面中添加一个全选框
rQLl[a private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
[~v1
{
CUI\:a- foreach(DataGridItem thisitem in DataGrid1.Items)
K4w#}gzok {
N7l`-y ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
<uKd)l }
_B6W:k|-7l }
W3E7y? h|Ah\P?o 将当前页面中DataGrid1显示的数据全部删除
cqSo%a2 foreach(DataGridItem thisitem in DataGrid1.Items)
NSV;R~" {
>gSiH#> if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
Pz77\DpFi {
Ss$/Bh>hN string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
"IuHSjP Del (strloginid); //删除函数
9,J^tN@^ }
- xE%`X }
Po*G/RKu4W ??
2x* l1 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)
E-v#G~ AQU^7O 在Application_Start中添加以下代码:
bZ-_Q Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
gCjW !t AppSettings["ConnStr"].ToString();
/<e<-C*d&< (Z |Nz *< 31. 变量.ToString()
^/M-*U8ab l+XTn;cS 字符型转换 转为字符串
sogdM{tz\ 12345.ToString("n"); //生成 12,345.00
*P;
cSx?2 12345.ToString("C"); //生成 ¥12,345.00
Vm]xV_FOd 12345.ToString("e"); //生成 1.234500e+004
R|g50Q 12345.ToString("f4"); //生成 12345.0000
|EZ\+!8N:{ 12345.ToString("x"); //生成 3039 (16进制)
J-U5_>S 12345.ToString("p"); //生成 1,234,500.00%
(ptk!u6 HOSt0IHzty 32、变量.Substring(参数1,参数2);
A8T75?lL( MY w3+B+Jj 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);
2AdO AA &>6JB{ 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)
s%/x3anz= <SCRIPT language="javascript">
L}Rsg'U <!--
NjH`
AMGBT function gook(pws)
A9;!\Wo {
r>,s-T!7 frm.submit();
f =T-4Of }
I(Gl8F\c~ //-->
Y9r##r+ H[ o > "@4 </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
~Iz{@Ep* <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
nmWo:ox4;( <tr>
AO~f=GW <td>
k%Wj+\93f <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
EC`=nGF <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
-PiakX <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
Q`)iy/1M iY;>LJmp <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
p6AF16*f0 <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
i}=n6
von<I </td>
,vcd>"PK A81'ca/ </tr>
wmDO^}>ZP 59#o+qo4 </form>
_uq[D`= }MIg RQ9 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。
X0 ^~`g EN/r{Cm$B 下面是获取用户输入的登陆信息的代码:
mhW*rH*m string name;
i TLX=.M name=Request.QueryString["EmailName"];
ncdj/C #t< try
S.R|Bwj}(Y {
}'WEqNuE int a=name.IndexOf("@",0,name.Length);
9,cMb)=0 f_user.Value=name.Substring(0,a);
n%K^G4k^ f_domain.Value=name.Substring(a+1,name.Length-(a+1));
*&doI%q f_pass.Value=Request.QueryString["Psw"];
rr^?9M*{V }
dGG 8k& ]Ei*I} catch
T8NDS7&? {
aL^
58M y& Script.Alert("错误的邮箱!");
.r~M7 I Server.Transfer("index.aspx");
k@|Go)~ }