1. 打开新的窗口并传送参数:
w%kxY5q (URWicaB 传送参数:
tjGQ0-Lo response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
E[
,Ur`>: t6j|q nfw 接收参数:
ZJS7#<-7o string a = Request.QueryString("id");
yB&s2J string b = Request.QueryString("id1");
<EJC.WWJa /"
,]J 2.为按钮添加对话框
R/iXO~/"J Button1.Attributes.Add("onclick","return confirm(’确认?’)");
SH"O<cDp button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
HyB!8M| &uC7W.| 3.删除表格选定记录
d+l@hgz~ int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
]R(=) string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
f"S^:F0 [H!V 4.删除表格记录警告
m)&2zV/Q private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
wj5{f5 RWV {
r'"H8>UZ% switch(e.Item.ItemType)
xGN&RjPk\ {
?EdF&^[3rD case ListItemType.Item :
JPRl/P$ case ListItemType.AlternatingItem :
-(P"+g3T case ListItemType.EditItem:
P)4SrqW_ TableCell myTableCell;
b:oB $E myTableCell = e.Item.Cells[14];
gWRSS=8% LinkButton myDeleteButton ;
GC.
myDeleteButton = (LinkButton)myTableCell.Controls[0];
2!}5shB myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
|GLa`2q| break;
&W*9'vSm. default:
7aS`SF break;
yqZKn=1: }
^2=11 TX$j-TM' }
@#;2P'KL t
?rUbN 5.点击表格行链接另一页
Y}QtgZEt private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
a=Pl3Uo {
du Pzt //点击表格打开
a(QYc?u if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
w(0's' e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
h?jKq2`
}
wP29xV"5 y\]:&)?&C^ 双击表格连接到另一页
R!5j1hMN` 6cDe_v|, 在itemDataBind事件中
O1Vs! if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
!{jDZ?z{h {
qq
G24**9v string OrderItemID =e.item.cells[1].Text;
Y<odXFIS ...
M, f6UYo= e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
@-)jU! }
4@-
'p bejvw?)S. 双击表格打开新一页
_46
y if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
3U^E<H {
Xf(H_&K string OrderItemID =e.item.cells[1].Text;
qf-0 | w ...
eh`n?C e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
/SO
4O|b }
,ir(~g+{g B*W)e$ ★特别注意:【?id=】 处不能为 【?id =】
c"~+Y2]tL 6.表格超连接列传递参数
J4EQhuQ <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
Bu$Z+o <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
?hHVawt {oOzXc6o 7.表格点击改变颜色
hV_bm@f/y if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
Fu].%`*xJ {
):-\TVz~ e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
P
:zZ this.style.color=’buttontext’;this.style.cursor=’default’;");
nB>C3e }
{B+|",O5) 2[zFKK 写在DataGrid的_ItemDataBound里
=wEU+R_#o if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
_9*3Mr)2N {
^VabXGzo# e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
h)7hk*I this.style.color=’buttontext’;this.style.cursor=’default’;");
:@K1pAh 4 e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
zg>4/10P1q }
UaG
}) d.>Zn?u4L :%!`R72 8.关于日期格式
a*/%EP3 2"~|k_ 日期格式设定
;d5d$Np@m& DataFormatString="{0:yyyy-MM-dd}"
ufq9+} Ls51U 7 我觉得应该在itembound事件中
s1~&PH^ e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
F)XO5CBK @~1}n/ 9.获取错误信息并到指定页面
},#@q_E J?DJA2o 不要使用Response.Redirect,而应该使用Server.Transfer
4TX~]tEyky "0Ca;hSLM2 e.g
IHC
{2 ^ // in global.asax
xQ~}9Kt\ protected void Application_Error(Object sender, EventArgs e) {
&RF*pU> if (Server.GetLastError() is HttpUnhandledException)
lfTDpKz3D Server.Transfer("MyErrorPage.aspx");
`0)'&HbLY |%\>+/j$ //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
$1KvL8 }
cug=k ey!QAEg"X1 Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
M4rI]^lJ 5=@q!8a* 10.清空Cookie
3Q;XvrGA Cookie.Expires=[DateTime];
:$qa Response.Cookies("UserName").Expires = 0
KF!?;q0J A*b>@>2 11.自定义异常处理
+t[i68,% //自定义异常处理类
Z@f4= using System;
C[c^zn
using System.Diagnostics;
8>4@g!9E \A#YL1hh namespace MyAppException
Ah#bj8} {
hsCts@R /// <summary>
nI0TvBD
/// 从系统异常类ApplicationException继承的应用程序异常处理类。
^VL",Nt /// 自动将异常内容记录到Windows NT/2000的应用程序日志
?xX9o /// </summary>
nNj<!}HvV public class AppException:System.ApplicationException
C]dK/~Z#r {
A4Sb(X|j public AppException()
~3'}^V\ {
g._`"c if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
&[#iM0;)W0 }
9lU"m_
QT4 &GKtD) public AppException(string message)
tMbracm {
K."%PdC LogEvent(message);
iup "P }
`PH]_]:% sW#OA\i& public AppException(string message,Exception innerException)
( :h#H[F {
mto=_|gn LogEvent(message);
T>P[0`*) if (innerException != null)
rP%B#%;S" {
SOg>0VH) LogEvent(innerException.Message);
3OZu v};k }
/k_?S? }
md
S`nhb r
P1FM1"M //日志记录类
zLt7jxx using System;
B QxU~s using System.Configuration;
.=`r?#0 using System.Diagnostics;
0D==0n using System.IO;
SJ0IEPk using System.Text;
G_1`NyI using System.Threading;
hf('4^ V(#z{! namespace MyEventLog
P70]Ju {
.S{>?2 /// <summary>
F<9S, /// 事件日志记录类,提供事件日志记录支持
IVY{N/ 3| /// <remarks>
3q}fDM(@J /// 定义了4个日志记录方法 (error, warning, info, trace)
rb_FBa% /// </remarks>
Q |1-j /// </summary>
4). i4]%LH public class ApplicationLog
7c8A|E0\mF {
rfH'&k /// <summary>
.e Jt]K /// 将错误信息记录到Win2000/NT事件日志中
#)BbW40f6 /// <param name="message">需要记录的文本信息</param>
5`tMHgQO /// </summary>
/\-iV)h1@ public static void WriteError(String message)
\""sf{S9 {
:i};]pR WriteLog(TraceLevel.Error, message);
8`]1Nt!*B }
$>*TO1gb+ Y;I>rC( /// <summary>
ud`!X#e~ /// 将警告信息记录到Win2000/NT事件日志中
n`TXmg /// <param name="message">需要记录的文本信息</param>
Pbo759q1 /// </summary>
}K3!ujvR public static void WriteWarning(String message)
}.S4;#|hw {
Xg^9k00C WriteLog(TraceLevel.Warning, message);
WAzn`xGxR" }
-ufO,tJRLL tqYwPSr /// <summary>
&i{>Li /// 将提示信息记录到Win2000/NT事件日志中
3*<?'O7I0 /// <param name="message">需要记录的文本信息</param>
5vSJjhS /// </summary>
&:@)roCR public static void WriteInfo(String message)
|G(9mnZ1 {
ba`V`0p- ( WriteLog(TraceLevel.Info, message);
"j*{7FBqk }
r@)_>( /// <summary>
NW%u#MZ[h /// 将跟踪信息记录到Win2000/NT事件日志中
dd>
qy /// <param name="message">需要记录的文本信息</param>
Li2-G /// </summary>
Bsc public static void WriteTrace(String message)
_VM()n; {
+$SJ@IH[< WriteLog(TraceLevel.Verbose, message);
*p !F+" }
4n5r<?rY mh7JPbX| /// <summary>
]38{du /// 格式化记录到事件日志的文本信息格式
*wu:fb2[(
/// <param name="ex">需要格式化的异常对象</param>
!ma%Zk /// <param name="catchInfo">异常信息标题字符串.</param>
8~@?cy1j! /// <retvalue>
'Z{_ws /// <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#[w).7 /// </retvalue>
93]67PL#+ /// </summary>
K.P1| public static String FormatException(Exception ex, String catchInfo)
^$VH~i& {
1[U`,(C1 StringBuilder strBuilder = new StringBuilder();
.W*" C if (catchInfo != String.Empty)
FbU98n+z {
e{RhMjX<D strBuilder.Append(catchInfo).Append("\r\n");
lHI;fR }
nP5T*-~ strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
}Kt1mmo:` return strBuilder.ToString();
%K/zVYGm& }
Z!eW_""wp tQYkH$e`/{ /// <summary>
a\]glw\; /// 实际事件日志写入方法
=Ul{#R
z /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
I|eYeJ3 /// <param name="messageText">要记录的文本.</param>
m6 V L /// </summary>
edZhI private static void WriteLog(TraceLevel level, String messageText)
VxTrL}{(6 {
z-g"`w:Lj try
(;6vT'hE {
Eb.k:8?Tn EventLogEntryType LogEntryType;
@;1Ym\zc switch (level)
gAxf5A_x) {
u+_6V case TraceLevel.Error:
6aq=h`Y LogEntryType = EventLogEntryType.Error;
+B#+' break;
*^=zQ~ case TraceLevel.Warning:
\YMe&[C:o LogEntryType = EventLogEntryType.Warning;
_GF{Duxh break;
+ebmve \+ case TraceLevel.Info:
appWq}db LogEntryType = EventLogEntryType.Information;
^0T DaZDLp break;
)/mBq#ZS case TraceLevel.Verbose:
d")TH 3pG LogEntryType = EventLogEntryType.SuccessAudit;
A.wuB break;
yc:y}" default:
k[<Uxh% LogEntryType = EventLogEntryType.SuccessAudit;
s"-gnW break;
mLb>*xt$b@ }
>Y8\I ziXZJ^(FI EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
Y)*:'&~2e //写入事件日志
X Z4q{^o eventLog.WriteEntry(messageText, LogEntryType);
-?}Z0e(w &cuDGo. }
k,GAHM"' catch {} //忽略任何异常
Q*K31Ln }
!U[/P6
+0 } //class ApplicationLog
"xxt_ }
S|pf.l hztxsvw 12.Panel 横向滚动,纵向自动扩展
jn,_Ncd# <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
nA4PY]
U
rL|r. 13.回车转换成Tab
LZ-&qh <script language="javascript" for="document" event="onkeydown">
AdGDs+at, if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
RIV
+ _}R event.keyCode=9;
n5s2\( </script>
bg/a5$t
|SSe n#PYp onkeydown="if(event.keyCode==13) event.keyCode=9"
!E.CpfaC [L`w nP 14.DataGrid超级连接列
ic=tVs DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
H9+[T3b &|Cd1z#? 15.DataGrid行随鼠标变色
$ts1XIK% private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
Sece#K2J| {
HY>zgf,0 if (e.Item.ItemType!=ListItemType.Header)
?Jy/]j5fI {
9ymx; e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
W\1V`\gF e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
2uT"LW/(H }
0/TP`3$X#" }
D4IP$pAD 1G`zwfmh~ 16.模板列
}[mLtv%& <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
b2Oj 1dP1 <ITEMTEMPLATE>
Z(wj5;[G <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
HF;$Wf+=J </ITEMTEMPLATE>
~pWV[oUD </ASP:TEMPLATECOLUMN>
:N#8|;J1Fl ["N_t:9I <ASP:TEMPLATECOLUMN headertext="选中">
{({Rb$ <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
+rWcfXOHM <ITEMTEMPLATE>
OYLg-S <ASP:CHECKBOX id="chkExport" runat="server" />
g|=1U </ITEMTEMPLATE>
t`Lh(` <EDITITEMTEMPLATE>
}-N4D"d4o <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
yBkcYHT </EDITITEMTEMPLATE>
~v|NC([( </ASP:TEMPLATECOLUMN>
?)V|L~/ kK%@cIXS3 后台代码
Qr9@e Q1Pp protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
q5#6PYIq {
tFvXVfml //改变列的选定,实现全选或全不选。
PUbfQg CheckBox chkExport ;
U%V4@iz~\m if( CheckAll.Checked)
FT[of(g^ {
opfg %* foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
kps}i~Jb {
|YcYWok chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
?X^.2+]*& chkExport.Checked = true;
i#KY'"P }
*6/OLAkyF }
x%`tWE| else
1<D^+FC4b, {
5H}d\=z foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
.Ge`)_e {
<pIel chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
HyYol* chkExport.Checked = false;
/K :H2?J }
>41K>=K }
1TlMB }
vWVQ8S. +HkEbR'G0 17.数字格式化
w[]\%`69}Z 7RCVqc" 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
4WXr~?Vq9 <%#Container.DataItem("price","{0:¥#,##0.00}")%>
Y.KJP ? h pKrP int i=123456;
<V1y^EW0 string s=i.ToString("###,###.00");
yF@72tK %(A@=0r# 18.日期格式化
V\*J"ZP& P X>>h}% 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
~9Cw5rwH<; 99*QfC 显示为: 2004-8-11 19:44:28
>=K~*$&> (Qd@Q,@(s 我只想要:2004-8-11 】
4Ul*`/d <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
~tZy-1 t*wV<b 应该如何改?
Q5 = [PH56f 【格式化日期】
`N;O6
wZ CF]#0*MI 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
PwC^
]e Jix;!(" 【日期的验证表达式】
q854k+C b&P2VqYgl A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
@m+FAdA 0 ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
0,1)Sg* NszqI B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
TXbnK"XQ ^\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]))$
g`I$U%a_2 CZ.HQc 【大小写转换】
9t+:L(*pK HttpUtility.HtmlEncode(string);
6yK"g7 HttpUtility.HtmlDecode(string)
~F13}is jygKw+C 19.如何设定全局变量
H+npe'm_Z paZcTC Global.asax中
`P jS T854}RX[{ Application_Start()事件中
IeAUVRS) Xu& v3Y~k 添加Application[属性名] = xxx;
qJK-HF:# N**"u"CX 就是你的全局变量
UQnv#a> ^~W s4[Guo 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
GB{Q)L ,
%A2wV HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
)F m'i&F_ } QpyU% 【ASPNETMENU】点击菜单项弹出新窗口
sfR0wEqI Fiaeo0 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
rq|>z . <?xml version="1.0" encoding="GB2312"?>
V PI_pK <MenuData ImagesBaseURL="images/">
3Y=uBl <MenuGroup>
I&>5b7Uf <MenuItem Label="内参信息" URL="Infomation.aspx" >
cdTG ]n <MenuGroup ID="BBC">
MrhJk <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
Hh'o:j(^ <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
vPM2cc/o ......
-5Aqf\ +t}<e( 最好将你的aspnetmenu升级到1.2版
@ ]
3`S LX7<+`aa 21.读取DataGrid控件TextBox值
eb7~\|9l1i foreach(DataGrid dgi in yourDataGrid.Items)
Hr/Q?7g {
\4n9m TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
0RP{_1k tb.Text....
{}tv(8]^ }
m_b_)/ [Y8ot-6 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
Gl3bkQ |3=tF"h 〖思归〗
UB7C,:" <asp:TemplateColumn HeaderText="数量">
Xagz(tm/ <ItemTemplate>
VV"1I R <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
\=
Wrh3 onkeyup="javascript:DoCal()"
w
C-x' />
T^H`$;\ c1h?aP <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
Z(hRwIOF </ItemTemplate>
I ka
V g L </asp:TemplateColumn>
>:P-3#e* CM
8Ub% <asp:TemplateColumn HeaderText="单价">
rQ&F Gb <ItemTemplate>
)P9&I.a8 <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
+A<7:`sO onkeyup="javascript:DoCal()"
p"QV| ` />
'/@i}
digf `W{y <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
M~-jPY,+ M(.Up </ItemTemplate>
C[nacAi </asp:TemplateColumn>
T9]:,
z 6Lz:J:Q) <asp:TemplateColumn HeaderText="金额">
e`;U9Z <ItemTemplate>
&I?d(Z=:\ <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
kRB2J3Nt. </ItemTemplate>
%-3wR@ </asp:TemplateColumn><script language="javascript">
y5N,~@$r function DoCal()
{
u1\M {
MJG)fFl]O var e = event.srcElement;
nj7\vIR7 var row = e.parentNode.parentNode;
jT:kk var txts = row.all.tags("INPUT");
c'Zs2s7$ if (!txts.length || txts.length < 3)
wsAijHjJI! return;
9P# <T7 $GX9-^og=T var q = txts[txts.length-3].value;
B2)SNhF2Y var p = txts[txts.length-2].value;
?#VkzT tkf^sGgNO if (isNaN(q) || isNaN(p))
*Zz hN]1 return;
LAv!s/ O$= Awlw6?
q = parseInt(q);
FoGSCg% p = parseFloat(p);
z>O =. Ku6 ;1>)p x** txts[txts.length-1].value = (q * p).toFixed(2);
*!L
it:H }
Schvwlm~i </script>
v9l|MI15V +t<'{KZ7; Hb@PQcj UYsyVY`Fm| R;F z"J 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。
)r6d3-p1 page_load
H1a<&7 page.smartNavigation=true
Rx.dM_S |gM@}!DL 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 ?
]VHO'z\m private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
.{66q#. {
H]&^>Pvh for(int i=0;i<e.Item.Cells.Count-1;i++)
Lb%:u5X\D@ if(e.Item.ItemType==ListItemType.EditType)
W3Dtt-)E {
DeGcS1_? e.Item.Cells.Attributes.Add("Width", "80px")
hV[= }
_sC
kBDl- }
"oo
j; qb>mUS 26.对话框
V.~C.x private static string ScriptBegin = "<script language=\"JavaScript\">";
j$}W%ibj private static string ScriptEnd = "</script>";
dnstm@0k ~ A4_ public static void ConfirmMessageBox(string PageTarget,string Content)
H@BU/{ {
+BkmI\ string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
afj[HJbY SMbhJ}\O ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
y<*/\]t9L[ V"Y-|R Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
^RE("'+ ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
'U'Y[*m@ //Response.Write(strScript);
}?=4pGsI }
~{f[X3m^ E~'QC 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
Afo qCF [E4#|w 1.1 取当前年月日时分秒
ky|Py currentTime=System.DateTime.Now;
FOD_m&+ ?;?$\b= 1.2 取当前年
[Z{0|NR int 年= DateTime.Now.Year;
qo5WZ
be 2^T`> ?{X 1.3 取当前月
\EOPlyf8x int 月= DateTime.Now.Month;
U+'h~P'4 e$=0.GWT 1.4 取当前日
sboX< int 日= DateTime.Now.Day;
%TA@-tK= `=VN\W^& 1.5 取当前时
m{C int 时= DateTime.Now.Hour;
Y+e a 9ZXEy }q57 1.6 取当前分
3ew`e"s int 分= DateTime.Now.Minute;
;-@v1I; q8P$Md-=b1 1.7 取当前秒
=#sr4T int 秒= DateTime.Now.Second;
Uh8c!CA8:\ I,wgu:}P# 1.8 取当前毫秒
<-K'9ut, int 毫秒= DateTime.Now.Millisecond;
DW.vu%j^[ {G(N vf,K] 28.自定义分页代码:
6A*k vILq5iR 先定义变量 :
3v7*@(y public static int pageCount; //总页面数
H3qM8_GUA public static int curPageIndex=1; //当前页面
|%xgob CJ#1j> 下一页:
^E`SR6_cmj if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
|XoW
Z,K {
fC^POLn[f DataGrid1.CurrentPageIndex += 1;
!;~6nYY curPageIndex+=1;
={gf x; }
E G3?C Zh,{e/j bind(); // DataGrid1数据绑定函数
|*-&x:p7O =}7[ypQM`] 上一页:
@h";gN if(DataGrid1.CurrentPageIndex >0)
Zm~oV?6 {
?5MOp DataGrid1.CurrentPageIndex += 1;
IW-lC{hK curPageIndex-=1;
(_'Efpg| }
=&xNdc #gd`X|<Ch bind(); // DataGrid1数据绑定函数
KG8Km >)p8^jX 直接页面跳转:
^YwTO/Q| int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
|Wzdu2T *='J>z.] if(a<DataGrid1.PageCount)
j65qIw_Z {
j`pX2S this.DataGrid1.CurrentPageIndex=a;
-OPJB:7Z }
hd)HJb-aR N#"( bind();
UjrML zs@xw@
29.DataGrid使用:
}*s%|!{H MeXGE 添加删除确认:
,ThN/GkSC private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
;u
"BCW {
T0=%RID%= foreach(DataGridItem di in this.DataGrid1.Items)
\>@QJ {
c1L0#L/F6" if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
jX8,y {
`bx}!;{lx ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
z),@YJU"z }
8C(@a[V }
!H[K"7w }
"hi)p9 _cR HE0@`(mCpa 样式交替:
98x&2(N ListItemType itemType = e.Item.ItemType;
>p;cbp[ht #)hJ.0~3 if (itemType == ListItemType.Item )
dZ"w2ho {
ROc)LCA e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
z.%K5vrO> e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
^a+H`RD }
sj& j\<( else if( itemType == ListItemType.AlternatingItem)
C`LHFqv {
F.[E;gOTo e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
q"O4}4` e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
zEYT,l }
mxQPOu >^5UXQr 添加一个编号列:
Bc^MZ~+ip DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
/$NZj"# DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
f7_EqS=( w%L::Z4 for(int i=0;i<dt.Rows.Count;i++)
7 _*k<W7| {
K~DQUmU@ dt.Rows["number"]=(i+1).ToString();
]
3UlF'{ }
AYnk.H-v [9U:: DataGrid1.DataSource=dt;
+M^+qt;]V DataGrid1.DataBind();
3+>;$ e[)oT DataGrid1中添加一个CheckBox,页面中添加一个全选框
yRF
%SWO private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
{InD/l'v6n {
?@uyqi~:U foreach(DataGridItem thisitem in DataGrid1.Items)
C0> Z<z {
'l7ey3B% ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
4gkaCk{] }
Y)oF;ko: }
^vA"3Ixb! $>csm 将当前页面中DataGrid1显示的数据全部删除
}>
pNf foreach(DataGridItem thisitem in DataGrid1.Items)
lujUEHzp {
7j22KQ|EX^ if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
|k ]{WCD] {
S(\<@S& string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
w#Di Del (strloginid); //删除函数
MJDW-KL- }
44p?x8(z* }
8,^2'dK34 MaS"V`NI 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
Q]v>< n |e=7?H8 在Application_Start中添加以下代码:
+8#hi5e Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
zOfMKrRG AppSettings["ConnStr"].ToString();
H0P:t(<Gt 7)Y0D@wg 31. 变量.ToString()
gf\F%VmSN Z;qgB7-M 字符型转换 转为字符串
]8;2Oh
12345.ToString("n"); //生成 12,345.00
9ER!K 12345.ToString("C"); //生成 ¥12,345.00
A0f98?j^ 12345.ToString("e"); //生成 1.234500e+004
{dF_=`. 12345.ToString("f4"); //生成 12345.0000
p}:"@6 12345.ToString("x"); //生成 3039 (16进制)
{`>;I 12345.ToString("p"); //生成 1,234,500.00%
lK0pr sJ
!<qb5 ! 32、变量.Substring(参数1,参数2);
.WV5Gf) %c"t` 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
nA)KRCi [d^ [Y:I'\ 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
#vs=yR/tn{ <SCRIPT language="javascript">
dPmtU{E<M <!--
e_v_y$ function gook(pws)
)U5Ba^"fI {
}JlrWJRi frm.submit();
L $ki>._i\ }
d09qZj> //-->
2k]Jkd,E L55VS:' </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
pX LXkF? <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
n=8DC& <tr>
Ak'=/`+ p <td>
-D&d1`N4 <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
76BA1x+G <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
c*c 8S~6 <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
C>gC99 x3L0;:Fx8P <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
.2v)x <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
VTIRkC
wl@ IL&;2% </td>
'i5,2vT0 wk[4Qsk< </tr>
hqwDlapTt ?Fp2W+M
j </form>
?Zv>4+Y' ["7]EW\!: 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
>)6d~ lVra&5 下面是获取用户输入的登陆信息的代码:
p/WE[8U string name;
N*NGC!p`N name=Request.QueryString["EmailName"];
yZyB.wT oH>G3n|U^ try
L+N;mI8 {
5`QN<4?% int a=name.IndexOf("@",0,name.Length);
dc=~EG-_rM f_user.Value=name.Substring(0,a);
>tQ$V<YB f_domain.Value=name.Substring(a+1,name.Length-(a+1));
U6K!FOND f_pass.Value=Request.QueryString["Psw"];
h(MNH6B1 }
`\Ye:$q ]~d!<x#+ catch
I\WBPI {
9JBVG~m+ Script.Alert("错误的邮箱!");
25wvB@0& Server.Transfer("index.aspx");
-?Kd[Ma }