1. 打开新的窗口并传送参数:
:)Es]wA#HZ LTBH/[q5 传送参数:
X)(K|[ response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
QpzdlB44l <gX({FA 接收参数:
A/9<} m string a = Request.QueryString("id");
JkR%o
#>5 string b = Request.QueryString("id1");
noaR3) S7j(4@ 2.为按钮添加对话框
`[E-V Button1.Attributes.Add("onclick","return confirm(’确认?’)");
{pi_yr3 button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
C:&Sk\
1r4NP 3.删除表格选定记录
**-rPonM[ int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
UazK0{t<f string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
BbFLT@W4 QDJ#zMxFD 4.删除表格记录警告
o *U-.& private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
U*N{H$ACuR {
T/u61}'U{ switch(e.Item.ItemType)
m{>" {
\+Qd=,!i( case ListItemType.Item :
V!*1F1 case ListItemType.AlternatingItem :
{8":cn
j case ListItemType.EditItem:
.mwW`D TableCell myTableCell;
w&#[g9G% myTableCell = e.Item.Cells[14];
^Rl?)_)1HE LinkButton myDeleteButton ;
D:K"J><@ myDeleteButton = (LinkButton)myTableCell.Controls[0];
$EIKi'!8 myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
N:'GNMu break;
YG?4DF default:
M-;MwLx break;
Xa-TNnws? }
lO9Ixhf~iu G]xYQ]
}
NH5sV.vvc nIlx?(=pu 5.点击表格行链接另一页
?~sNu k private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
+MYrNR.p {
5s%e9x|kP //点击表格打开
cJ?,\@uuP if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
Q6 o1^s e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
1foG*
}
:SwA) (1 |ggtb\W 双击表格连接到另一页
/J"fbBXwY !:xE
X~ 在itemDataBind事件中
7uUq+dp if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
AW_ YlS {
i,;a( Sy4 string OrderItemID =e.item.cells[1].Text;
SG~HzQ\% ...
TXd6o= e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
D'moy*E }
rkh%[o9"/ .`u8(S+ 双击表格打开新一页
F&CvqPI if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
ZJFF4($qN {
M4;M.zxJv string OrderItemID =e.item.cells[1].Text;
F;/^5T3wI ...
fGH)Fgo` e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
zZ Y1E@~ }
s7jNRY V 1Xh@x ★特别注意:【?id=】 处不能为 【?id =】
fwx^?/5j 6.表格超连接列传递参数
%#EzZD <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
LH`$<p2''r <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
a_\7Ho$^ 2!9W:I7 7.表格点击改变颜色
s LD Ea if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
$zhvI*0 {
>X[:(m' e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
7[L%j;)bw this.style.color=’buttontext’;this.style.cursor=’default’;");
%WP[V{,F }
ME)='~E W! |_ hL 写在DataGrid的_ItemDataBound里
fMHw=wJQ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
E@Ewx;P5 {
!z:j-gT3 e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
0%|)=T3Slu this.style.color=’buttontext’;this.style.cursor=’default’;");
5KTFf6Uq e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
#5^OO ou| }
fQ.S ,lMe 7N5M=f.DS( +|<bb8% 8.关于日期格式
-)&lsFF G&Yo2aADR 日期格式设定
} nIYNeP?D DataFormatString="{0:yyyy-MM-dd}"
L*p7|rq$" I"8Z'<|/\q 我觉得应该在itembound事件中
~rq:I<5 e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
Xmb##: e<8KZ 9.获取错误信息并到指定页面
W?N+7_%' _TJkYz$ 不要使用Response.Redirect,而应该使用Server.Transfer
+?Q HSIQo VgY6M_V e.g
q)@;8Z=_c // in global.asax
<Vh5`-J protected void Application_Error(Object sender, EventArgs e) {
<Nloh+n= if (Server.GetLastError() is HttpUnhandledException)
vy7?]}MvV Server.Transfer("MyErrorPage.aspx");
1 K^-tms wT3D9N. //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
S,'ekWVD }
c8_,S[W :YLYCVi| 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
GsD?Z%t~% @QYCoEU8J 10.清空Cookie
P3a]*> ., Cookie.Expires=[DateTime];
z)eNM}cF Response.Cookies("UserName").Expires = 0
VY|UB7,C n~jW 11.自定义异常处理
>$3 =yw% //自定义异常处理类
uVX,[%*P using System;
_S*QIbO using System.Diagnostics;
uTl"4;&j ,Cy&tRjR B namespace MyAppException
31]Vo;D {
tp ky /// <summary>
l Ny<E!0 /// 从系统异常类ApplicationException继承的应用程序异常处理类。
n c.P /// 自动将异常内容记录到Windows NT/2000的应用程序日志
xvWP^Qkb /// </summary>
#!m^EqF1_ public class AppException:System.ApplicationException
*uxKI:rB: {
Y_XRf8Sw public AppException()
jrm^n_6}; {
R(}!gv}s if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
DU5rB\!.~ }
zQGj,EAM} z,!A4ws public AppException(string message)
G!D~*B9G {
]r#NjP LogEvent(message);
^g <Lu/5w }
>Fe=PRs @te}Asv public AppException(string message,Exception innerException)
mEb`ET| {
i!<(R$Lo LogEvent(message);
11!4#z6w if (innerException != null)
a6d|Ps.\! {
mkgL/h* LogEvent(innerException.Message);
K|;L{[[yH }
<BdC#t:*L }
%u Dd#+{ ~jWpD7px //日志记录类
UU#$Kt*frR using System;
idS+&:' using System.Configuration;
)Dcee@/7S using System.Diagnostics;
G he@m6|D using System.IO;
CWD
$\K G using System.Text;
sI4
FgO using System.Threading;
)%:
W;H G+3uY25y namespace MyEventLog
%2?"x*A {
)R@Y$*fm /// <summary>
)1)&fN41i# /// 事件日志记录类,提供事件日志记录支持
f\:I1y /// <remarks>
Z#GR)jb+ /// 定义了4个日志记录方法 (error, warning, info, trace)
L'"od;(6R /// </remarks>
0U2dNLc /// </summary>
On+0@hh public class ApplicationLog
])zpx- {
]go.IfH /// <summary>
nF
'U* /// 将错误信息记录到Win2000/NT事件日志中
iZ(p]0aP7 /// <param name="message">需要记录的文本信息</param>
u^L_X A /// </summary>
EYZ,GT-I public static void WriteError(String message)
6fT^t!<i {
I(9+F WriteLog(TraceLevel.Error, message);
,(+ZD@Rg }
s21)*d 2%pe.stQ /// <summary>
#vR5a}BAk /// 将警告信息记录到Win2000/NT事件日志中
%nkbQ2^ /// <param name="message">需要记录的文本信息</param>
A.!3{pAb /// </summary>
?CpM.{{s public static void WriteWarning(String message)
NL"w#kTc() {
;tZ 8Sh) WriteLog(TraceLevel.Warning, message);
ggHl{cl) }
6U] "i J =#9eW /// <summary>
^$8WV&5q> /// 将提示信息记录到Win2000/NT事件日志中
tkHUX!Ow; /// <param name="message">需要记录的文本信息</param>
EOGz;:b& /// </summary>
+C4NhA2 public static void WriteInfo(String message)
q(5 {
Lo9
\[4FP WriteLog(TraceLevel.Info, message);
h*mKS -TC }
bWB&8&p /// <summary>
49B6|!&I /// 将跟踪信息记录到Win2000/NT事件日志中
tkdyR1- /// <param name="message">需要记录的文本信息</param>
3TKl /// </summary>
EmV ZqW public static void WriteTrace(String message)
9lX+?m~ ~ {
>>>MTV f WriteLog(TraceLevel.Verbose, message);
,0n=*o@W }
u z:@ cdfnM% `>\ /// <summary>
SsIN@ /// 格式化记录到事件日志的文本信息格式
mZ#IP /// <param name="ex">需要格式化的异常对象</param>
8w3Wy<}y /// <param name="catchInfo">异常信息标题字符串.</param>
T(*A0 /// <retvalue>
uq]E^#^ /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
\&s$?r /// </retvalue>
@N\
Ht'f /// </summary>
mgBxcmv public static String FormatException(Exception ex, String catchInfo)
Q,\S3>1n {
9sB LCZ StringBuilder strBuilder = new StringBuilder();
vLcOZ^iK if (catchInfo != String.Empty)
[\"<=lb` {
gL wNHS strBuilder.Append(catchInfo).Append("\r\n");
h)?Km{u% }
i#Fe`Z ~J strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
oeG?2!Zh return strBuilder.ToString();
A)f/ww)Q }
9/5EyV tkhEjTZ /// <summary>
-k3WY&9, /// 实际事件日志写入方法
Now2ad& /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
zXeBUbVi /// <param name="messageText">要记录的文本.</param>
'\LU 8VC /// </summary>
UeSPwY private static void WriteLog(TraceLevel level, String messageText)
bzX/Zts {
elb}]
+ try
qo}u(pOj| {
l,E4h-$ EventLogEntryType LogEntryType;
S2
YxA switch (level)
G#z9=NF~V {
A@I3:V case TraceLevel.Error:
nZkMyRk LogEntryType = EventLogEntryType.Error;
g7]g0*gxXW break;
-k@Uo(MB case TraceLevel.Warning:
ev(E LogEntryType = EventLogEntryType.Warning;
/C[XC7^4' break;
N|s8PIcSp case TraceLevel.Info:
x@<!# d+ LogEntryType = EventLogEntryType.Information;
l65Qk2<YC break;
t?_{ case TraceLevel.Verbose:
LQa1p LogEntryType = EventLogEntryType.SuccessAudit;
)0 i$Bo break;
S >\\n^SbT default:
%lN4"jtx LogEntryType = EventLogEntryType.SuccessAudit;
jD_B&MQz break;
M
cbiO)@I }
O:[@?l VN<baK%] EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
hKFB=U //写入事件日志
m\J"P'= eventLog.WriteEntry(messageText, LogEntryType);
U,^jN|v 'J#uD|9) }
|>=\
VX17 catch {} //忽略任何异常
_zFJ]7Ym.) }
OMN|ea.O } //class ApplicationLog
~bX ) %jC }
;?!pcv Ui vjXCArS 12.Panel 横向滚动,纵向自动扩展
]hA]o7k <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
8HH\wu$$e _jrkR
n1 " 13.回车转换成Tab
4fdO Ow <script language="javascript" for="document" event="onkeydown">
x9H
qc9q if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
DBzF\- event.keyCode=9;
ZZ F\; </script>
Y t0s ;i;;{j@$i onkeydown="if(event.keyCode==13) event.keyCode=9"
|#(g8ua7 L~L]MC& 14.DataGrid超级连接列
M%FKg/ DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
m}fY5r<<;/ t)*A# 15.DataGrid行随鼠标变色
{]:B80I;2 private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
^]?Yd )v {
kZvh<NFh_ if (e.Item.ItemType!=ListItemType.Header)
J~rjI24 {
#+PfrS= e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
82Nw6om6i e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
08E ,U }
5%(xZ
6 }
B?<Z(d7 OL$^7FB 16.模板列
d0@czNWIC <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
aOo;~u2-= <ITEMTEMPLATE>
?VT
]bxb <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
Jl^THoEL </ITEMTEMPLATE>
JB\BP$ap </ASP:TEMPLATECOLUMN>
&5;y&dh ffE>%M* <ASP:TEMPLATECOLUMN headertext="选中">
~qmu?5 <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
`_H^k!^ <ITEMTEMPLATE>
_<G% <ASP:CHECKBOX id="chkExport" runat="server" />
|m>n4-5QL </ITEMTEMPLATE>
"]{"4qV1= <EDITITEMTEMPLATE>
p`LPO <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
cK+y3`.0 </EDITITEMTEMPLATE>
r=pb7=M#LN </ASP:TEMPLATECOLUMN>
vE+OL8 V $;%dQ!7* 后台代码
QCk(qlN'h9 protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
,4z?9@wQ {
f@= lK?Pfh //改变列的选定,实现全选或全不选。
IpMZ{kJlv` CheckBox chkExport ;
_7 9 ?,U] if( CheckAll.Checked)
Y=N; Bj {
<E&"] foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
k34!*(`q {
Ty>g:#bogI chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
/Q[M2DN@ chkExport.Checked = true;
* E3
c-- }
K=C).5=U }
z@S39Xp== else
hV4B?##O {
}8qsE foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
GCEq3
^/ {
= g)G! chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
5&*B2ZBzH chkExport.Checked = false;
Nd4!:. }
zE NlL }
|K6hY-uC }
H/ 6GD,0 pu*vFwZ 17.数字格式化
Y4|g^>{<ni qP0_#l& 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
j?n:"@!G/ <%#Container.DataItem("price","{0:¥#,##0.00}")%>
+~A<&7[} #%i-{t+_> int i=123456;
b,#E.%SLw string s=i.ToString("###,###.00");
N~An}QX| {1ic*cZS 18.日期格式化
X K5qE" #D{//P|; 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
gZr/Dfy O/=i'0Xv 显示为: 2004-8-11 19:44:28
kDG'5X;+ jHx<}< 我只想要:2004-8-11 】
:i6k6= <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
;|LS$O1c $yx34= 应该如何改?
,\K1cW~U5 /U%Xs}A) 【格式化日期】
S qQqG3F sm>Hkci% 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
afMIq Q? ^f,('0p-> 【日期的验证表达式】
XHlx89v7 +$+'|w A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
n'#(iW)f ^((\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})))?$
,JcQp=g #?z1cgCg B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
L_rKVoKjt ^\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]))$
a,U =irBA %8V/QimHU 【大小写转换】
Pl
}dA HttpUtility.HtmlEncode(string);
7^~pOFdH HttpUtility.HtmlDecode(string)
_;BN;]. 4JHFn [% 19.如何设定全局变量
oIM] ya'@AJS Global.asax中
/N
^%=G# ?eb2T`\0Q Application_Start()事件中
a]465FY "]nbM}> 添加Application[属性名] = xxx;
~qiSkG F62arDA 就是你的全局变量
S{NfU/:
dL w%1B_PyDg 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
X~Li` 1lNg} !)[K HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
9 0[gXj (r^IW{IndX 【ASPNETMENU】点击菜单项弹出新窗口
/y,~? g'`J'6Pn 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
)]%GNdU <?xml version="1.0" encoding="GB2312"?>
k:w\4Oqd <MenuData ImagesBaseURL="images/">
XRI1/2YA <MenuGroup>
kl| KFdA; <MenuItem Label="内参信息" URL="Infomation.aspx" >
!o 7uZC\ <MenuGroup ID="BBC">
.JpYZ | <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
`oh'rm3'8 <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
-NVk>ENL4 ......
T!hU37g h? 2f]9I1{ 最好将你的aspnetmenu升级到1.2版
2I'\o7Y O329Bkg 21.读取DataGrid控件TextBox值
4.3Bz1p foreach(DataGrid dgi in yourDataGrid.Items)
'sm+3d {
VPf*>ph= TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
(o\:rLZu tb.Text....
@Ns^?#u~ }
m4nJ9<- xnu|?;.}! 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?
+MQf2|-- A;h0BQm/j 〖思归〗
N
L]:<FG <asp:TemplateColumn HeaderText="数量">
q5[%B K <ItemTemplate>
4kA/W0 VG <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
.J~iRhVOF onkeyup="javascript:DoCal()"
z1LATy />
cJm!3X eR8qO"%2: <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
8*)zoT*A </ItemTemplate>
(G"b)"Qum </asp:TemplateColumn>
T.HI
$(d EPr{1Z <asp:TemplateColumn HeaderText="单价">
U$pHfNTH <ItemTemplate>
awXL}m[_! <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
{P(Z{9 u% onkeyup="javascript:DoCal()"
-?!Z/#i4 />
/wCee G,< ?}B9=R$Pi <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
a7q-*%+d5 +iwNM+K/gQ </ItemTemplate>
Gz!72H </asp:TemplateColumn>
-^;G^Uq6= )j@k[}R#g <asp:TemplateColumn HeaderText="金额">
}{Lf 4|8 <ItemTemplate>
-b(:kAwStk <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
[/*854 </ItemTemplate>
"aP>}5<h </asp:TemplateColumn><script language="javascript">
E+"INX7 function DoCal()
@}x)>tqD {
bsPw Tp^ var e = event.srcElement;
.dp~%!"Sn, var row = e.parentNode.parentNode;
x-Z`^O var txts = row.all.tags("INPUT");
:%A1k2
if (!txts.length || txts.length < 3)
ix]3t^ return;
@^;WC+\0 %I%F
!M var q = txts[txts.length-3].value;
ZH`6>: var p = txts[txts.length-2].value;
(1(3:)@S6 Os8]iNvW\ if (isNaN(q) || isNaN(p))
8R:H{)o~s} return;
r#]gAG4t\
uHQJ& q = parseInt(q);
42Vy#t/HC p = parseFloat(p);
*s?&)][ 8{JTR|yB txts[txts.length-1].value = (q * p).toFixed(2);
N"T~U\R }
_:M6~XHo </script>
pLBp[GQ J*,Ed51&7 c1CP12 Z5-"a?{Y _QBd3B% 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。
8+
B. x page_load
bg_Zf7{ page.smartNavigation=true
UY{
Uo@k9x uiE9#G 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 ?
1w+&Y;d| private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
5]p>&|Ud {
L|6c lGp for(int i=0;i<e.Item.Cells.Count-1;i++)
VrO$SmH if(e.Item.ItemType==ListItemType.EditType)
[4Glt>Nj> {
F^T7u?^) e.Item.Cells.Attributes.Add("Width", "80px")
J`} /+WN 7 }
G+b $WQn2t }
@'R4zJ&+S Y: KB"H 26.对话框
\E?1bc{\f private static string ScriptBegin = "<script language=\"JavaScript\">";
O`t ]# private static string ScriptEnd = "</script>";
=[t( [DG )Ah public static void ConfirmMessageBox(string PageTarget,string Content)
:'I mz {
lEZ[0oa string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
RURO0`^ P!B\:B%4~] ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
zi[bpa17W 9qQ_#$Vv Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
t wtGkkC ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
A0O$B7ylQ //Response.Write(strScript);
V[+ Pb] }
>V87#E -&))$h3o\ 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
>S5D-)VX YV{^S6M 1.1 取当前年月日时分秒
p5)A"p8"9, currentTime=System.DateTime.Now;
w:'$Uf8] s.C-II?e 1.2 取当前年
!S%XIq}FX int 年= DateTime.Now.Year;
_4zlEo-.gU |KU>+4=
@ 1.3 取当前月
A+Y>1-=JO int 月= DateTime.Now.Month;
bU2)pD!N +*)B;)P 1.4 取当前日
)V)4N[?GC int 日= DateTime.Now.Day;
_rs!6tp 1x M&"p: 1.5 取当前时
_=q)lt-UY int 时= DateTime.Now.Hour;
}#EiL
!Pv c4L5"_#`x- 1.6 取当前分
RS<c&{? int 分= DateTime.Now.Minute;
y"$|?187x ./5|i*ow 1.7 取当前秒
wzo-V^+q int 秒= DateTime.Now.Second;
fRaVY`|wK 1;vn*w`p 1.8 取当前毫秒
@%ChPjN int 毫秒= DateTime.Now.Millisecond;
r1ctW#\~8 U G^6I5 28.自定义分页代码:
a/_sL(F{ wvT!NN
K2 先定义变量 :
4w]u: eU public static int pageCount; //总页面数
>?U(w< public static int curPageIndex=1; //当前页面
O~fRcf:Q ,a^_
~(C 下一页:
_jU6[y|XLh if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
I7BfA,mZ7 {
H0tjN&O_ DataGrid1.CurrentPageIndex += 1;
)u\"xxcV curPageIndex+=1;
q$b/T+-ec }
HewVwD<C Zn#ri 8S bind(); // DataGrid1数据绑定函数
<po(7XB
)]>=Uo 上一页:
]Z<{
~ if(DataGrid1.CurrentPageIndex >0)
s'~_pP {
2c8,H29 DataGrid1.CurrentPageIndex += 1;
z%+?\.oH curPageIndex-=1;
lOd[8|/ }
kwGj7' m'aw`? bind(); // DataGrid1数据绑定函数
T{sw{E* K Qub%`n 直接页面跳转:
vx!nC}f"k` int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
&z1r$X.AW !c(B^E if(a<DataGrid1.PageCount)
7:M%w'oR {
bhe|q`1,E this.DataGrid1.CurrentPageIndex=a;
I \vu?$w }
6G@_!i*2F Ms^Y:,;Hi bind();
v`y{l>r, Uy_`=JZ 29.DataGrid使用:
|P5?0{ r^*,eF 添加删除确认:
{_^sR}%]F private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
:l3Tt< {
*RxbqB- foreach(DataGridItem di in this.DataGrid1.Items)
G_j`6v) {
8.Y6r if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
^U~YG=!ww {
LsV!Sd ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
L8 R|\Bx }
$D9JsUij }
X5>p~;[9 }
20% xD e Gtg;6&2 样式交替:
zUwz[^d<C ListItemType itemType = e.Item.ItemType;
:Q?xNY% & r\z9! if (itemType == ListItemType.Item )
Qo;$iLt {
jew?cnRmd e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
T=b5th} e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
:kY][_ }
qr<5z. % else if( itemType == ListItemType.AlternatingItem)
Bj%{PK {
%\r4c*O1q e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
$ZQP f e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
#Fu OTBNvB }
0_"J>rMp U6.$F#n 添加一个编号列:
dxMz! DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
~73YOGiGJH DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
'^7Sa ?"qU.}kGL for(int i=0;i<dt.Rows.Count;i++)
6wnfAli. {
/:U\U_j dt.Rows["number"]=(i+1).ToString();
sFCoRH|"c }
]d% hU YEVH?`G DataGrid1.DataSource=dt;
lXv{+ic DataGrid1.DataBind();
~5cLI;4h tgg*6lc DataGrid1中添加一个CheckBox,页面中添加一个全选框
gfih;i.pY private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
AO8`ItNZdT {
#MOEY|6 foreach(DataGridItem thisitem in DataGrid1.Items)
#1V vK
{
,Y9lp)w ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
7U?x8%H* }
Nz5gu.a6{L }
aQinR"o g w}t.3} 将当前页面中DataGrid1显示的数据全部删除
+uv]dD*i foreach(DataGridItem thisitem in DataGrid1.Items)
#\t?`\L3 {
%G\rL.H| if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
zbi[r {
Du[$6 string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
j>?c]h{- Del (strloginid); //删除函数
.D)'ZY }
X<Vko^vlj }
Qy@chN{eP ]_F%{ 8| 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
wCn W]<+ ~p8-#A)X,) 在Application_Start中添加以下代码:
L6 hTz' Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
_E&*JX AppSettings["ConnStr"].ToString();
a7OD%yQ _?O'65 31. 变量.ToString()
}v@w(*)h: #,!.e 字符型转换 转为字符串
(B,CL222x 12345.ToString("n"); //生成 12,345.00
hua{g_ 12345.ToString("C"); //生成 ¥12,345.00
;'R{b$B;| 12345.ToString("e"); //生成 1.234500e+004
u]"oGJj1 12345.ToString("f4"); //生成 12345.0000
FS`{3d2K + 12345.ToString("x"); //生成 3039 (16进制)
{T m-X` 12345.ToString("p"); //生成 1,234,500.00%
ic?6p lh8`.sWk4V 32、变量.Substring(参数1,参数2);
mm:\a-8j Os?~U/ 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);
8BLtTpu x*bM C&Ea 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)
KcNEB_i <SCRIPT language="javascript">
yy/wSk <!--
&m+s5 function gook(pws)
s?E7tmaM {
V><5N;w frm.submit();
-br/ }
e[w)U{|40 //-->
"E8-76n DghX(rs_ </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
rDUNA@r <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
e~nmIy <tr>
>8>`- <td>
9$UjZ$ v <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
(K^9$w]tf <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
VEo>uR <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
R}>Gk BE}lzn=sF <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
N7}.9%EV <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
N<Ti[Q]G !t~S.`vF </td>
3vNo D zOWbdd_zl </tr>
qK;n>BTe F~{yqY5]n </form>
LnrR#fF]Z xr)kHJ:v 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
hpLo 3V LwMF? 下面是获取用户输入的登陆信息的代码:
I)Lg=n$ string name;
e!G
I< name=Request.QueryString["EmailName"];
i&{8a3B *sZOws< try
Ok2k;
+l {
D|`[ [ int a=name.IndexOf("@",0,name.Length);
lj'c0k8 f_user.Value=name.Substring(0,a);
" 0K5
/9 f_domain.Value=name.Substring(a+1,name.Length-(a+1));
F}2U8O f_pass.Value=Request.QueryString["Psw"];
5NBc8h7 V }
@6}c\z@AxM 0@^YxU[YN catch
kM]? {
XvZg!<*OH Script.Alert("错误的邮箱!");
]%ikr&78u Server.Transfer("index.aspx");
4+' yJ9~,B }