1. 打开新的窗口并传送参数:
"42/P4: +F2OPIanT~ 传送参数:
K,,) FM response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
k0K$OX*:e DL1nD5 接收参数:
!4'F z[RK string a = Request.QueryString("id");
!2l2;?jM string b = Request.QueryString("id1");
T,1qR:58 $sE=[j'v 2.为按钮添加对话框
c@3 5\!9 Button1.Attributes.Add("onclick","return confirm(’确认?’)");
[|=M<>?[ button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
b/]4#?g f:<BUqa 3.删除表格选定记录
f17E2^(I(} int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
}^ ,D~b-nB string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
r9'[7b1l j-W$)c3X 4.删除表格记录警告
`Hlf.>b1 private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
dnU-v7k,{ {
J:Qx5;b; switch(e.Item.ItemType)
hr 6j+p: {
,f$P[c case ListItemType.Item :
k:R\;l5 case ListItemType.AlternatingItem :
1BZ##xV*:G case ListItemType.EditItem:
3Z=yCec] TableCell myTableCell;
j&'6|s{ myTableCell = e.Item.Cells[14];
Zd>sdS`#r LinkButton myDeleteButton ;
XGH:'^o_ myDeleteButton = (LinkButton)myTableCell.Controls[0];
AJxN9[Z!N myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
#X?[")R break;
jYRSV7d default:
5~@-LXqL break;
$["HC-n?.k }
j2UQQFh =2Yt[8'; }
YZ4`b- 1ruI++P 5.点击表格行链接另一页
aSX4~UYB= private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
i#t-p\Tcz {
c&',#.9 //点击表格打开
R^o535pozc if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
pTwzVz~ e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
Pd"c*n&9 }
wGKxT
ap "T5oUy&i 双击表格连接到另一页
abR<( H12 zdRVAcrwQ 在itemDataBind事件中
tJrGRlB> if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
#NYnZ^6e {
: #CWiq("% string OrderItemID =e.item.cells[1].Text;
*YvtT(Gt ...
;Jg$C~3tf e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
\2 N;VE }
v#%rjml[
<KU0K 双击表格打开新一页
hQm=9gS if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{/,(F^T>2 {
Sl,DZ! string OrderItemID =e.item.cells[1].Text;
ocZ}RI#Q ...
o?>0WSLlm e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
]$r]GVeN}H }
#xGP|:m N'WTIM3W ★特别注意:【?id=】 处不能为 【?id =】
vHcl7=)Q 6.表格超连接列传递参数
`D~oY= <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
l_Lz9k <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
*af\U3kx G&{yM2:E 7.表格点击改变颜色
uhfK\.3 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
{\`ttc> {
c-XO}\? e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
=JzzrM|V* this.style.color=’buttontext’;this.style.cursor=’default’;");
E4892B:` }
q| 1%G Nb Q!@M/@-Ky 写在DataGrid的_ItemDataBound里
E2>{se Z if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
K?'m#}] {
)2?]c e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
-^CW}IM{ I this.style.color=’buttontext’;this.style.cursor=’default’;");
M1-tRF e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
sPvs}}Z]P }
2[+.*Ef pxTtV g. XKky-LeJ 8.关于日期格式
%"Um8`]FVg P(k*SB|D 日期格式设定
p;}`PW DataFormatString="{0:yyyy-MM-dd}"
$`3yImv+w h@$SJe(hl 我觉得应该在itembound事件中
^7aqe*|vm e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
*P=3Pl?j ~iH a^i?2* 9.获取错误信息并到指定页面
aj;x:UqpJ ~F'6k&A^q 不要使用Response.Redirect,而应该使用Server.Transfer
SED52$zA q *&H e.g
c8X;4
My // in global.asax
]j>xQm\ protected void Application_Error(Object sender, EventArgs e) {
uK" T~ if (Server.GetLastError() is HttpUnhandledException)
oqF?9<Vgc, Server.Transfer("MyErrorPage.aspx");
% akW43cE q x)\{By //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
QvZ"{ }
FJtmRPP[r #U`AK9rP_g Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
1*hE bO 3oLF^^^g 10.清空Cookie
.>R`#@+I Cookie.Expires=[DateTime];
V0,JTWc Response.Cookies("UserName").Expires = 0
g,JfT^ .4%z$(+6 11.自定义异常处理
h6D4CT //自定义异常处理类
)mm0PJF~q using System;
"D.<~! using System.Diagnostics;
pV ^+X} lg-_[!4Z namespace MyAppException
'9f0UtT|[ {
>va_,Y} /// <summary>
xcW\U^1d /// 从系统异常类ApplicationException继承的应用程序异常处理类。
#G]IEO$M6 /// 自动将异常内容记录到Windows NT/2000的应用程序日志
5eff3qrH{ /// </summary>
#9|&;C5',! public class AppException:System.ApplicationException
p"%D/-%Gu {
vEg%ivj3 public AppException()
0QZT<Zs {
zJw5+
+
if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
pmB
{b }
0(-4"u>? CHKhJ v3+4 public AppException(string message)
t~o"x . {
.ifz9jM' LogEvent(message);
NuR7pjNMZ }
eWAD;x?. `qs,V public AppException(string message,Exception innerException)
I+kAy;2 {
6o#/[Tz LogEvent(message);
{OPEW`F if (innerException != null)
B3ItZojAuw {
V>QyiB LogEvent(innerException.Message);
2QaE&8vW }
/lC# !$9vz }
g0zzDv7~ Q ")Xg: //日志记录类
>IaGa!4 using System;
Hdew5Xn(: using System.Configuration;
4aOz=/x2 using System.Diagnostics;
A3/[9}(U using System.IO;
gDU!dT using System.Text;
*`+zf7-f using System.Threading;
EX_j|/&tZ cQt&%SVT]E namespace MyEventLog
~NK $rHwi% {
,A` |jF /// <summary>
jyIIE7.I" /// 事件日志记录类,提供事件日志记录支持
`(HD'f ud3 /// <remarks>
phu,&DS! /// 定义了4个日志记录方法 (error, warning, info, trace)
8HKv_vl /// </remarks>
o C|oh /// </summary>
s*Qyd{"z public class ApplicationLog
%.=}v7&<z {
!lfE7|\p /// <summary>
C+**!uYIB /// 将错误信息记录到Win2000/NT事件日志中
]F+|C /// <param name="message">需要记录的文本信息</param>
Ps@']]4>W /// </summary>
c0Ih$z public static void WriteError(String message)
9 o,`peH {
o+.L@3RT4 WriteLog(TraceLevel.Error, message);
bI
;I<Qa }
fPD.np} ?P+Uv /// <summary>
p48enH8CO /// 将警告信息记录到Win2000/NT事件日志中
q3#[6! /// <param name="message">需要记录的文本信息</param>
0V3dc+t)O /// </summary>
W Csf_1 public static void WriteWarning(String message)
y-E'Y=j {
.@)vJtH) WriteLog(TraceLevel.Warning, message);
L/rf5||@ }
;:bp?( 3&})gU&a /// <summary>
D-{*3?x /// 将提示信息记录到Win2000/NT事件日志中
5H 1x-b /// <param name="message">需要记录的文本信息</param>
Q&%gpa).W /// </summary>
J4iu8_eH!D public static void WriteInfo(String message)
<Nc9F[' {
:J )^gc WriteLog(TraceLevel.Info, message);
3O2vY1Y2 }
QV*la= j/ /// <summary>
0TICv2l! /// 将跟踪信息记录到Win2000/NT事件日志中
VeQ [A?pER /// <param name="message">需要记录的文本信息</param>
e(`r"RrQ /// </summary>
98_os2` public static void WriteTrace(String message)
x}d5Y {
$[J\sokpY WriteLog(TraceLevel.Verbose, message);
YhAO }
rEU1
VvE ;;U&mhz` /// <summary>
ZX{eggXl /// 格式化记录到事件日志的文本信息格式
P/]8+_K /// <param name="ex">需要格式化的异常对象</param>
|L-- j /// <param name="catchInfo">异常信息标题字符串.</param>
I>-}ys`[ /// <retvalue>
*]k E3 /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
a<+Rw{ /// </retvalue>
,p\*cHB9 /// </summary>
,pkzNe`F public static String FormatException(Exception ex, String catchInfo)
`fVzY"Qv k {
cRf;7G StringBuilder strBuilder = new StringBuilder();
AO5a if (catchInfo != String.Empty)
HJ!)&xT {
@OHNz!Lj:d strBuilder.Append(catchInfo).Append("\r\n");
'Nx"_jQ }
F[.IF5_ strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
2Y=Q% return strBuilder.ToString();
uHDUuK:Ur }
Kj6+$l 6e}T
zc\@( /// <summary>
A?)(^ /// 实际事件日志写入方法
nRX<$OzTV /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
3z8zZ1uzU /// <param name="messageText">要记录的文本.</param>
+yHzp /// </summary>
+,D82V7S private static void WriteLog(TraceLevel level, String messageText)
WCp[6g&%O {
PM {L}tEQ try
kaDn=
={YM {
: R8+jO EventLogEntryType LogEntryType;
y92<(ziaX) switch (level)
>4#\ U! {
u9+)jN<Yh case TraceLevel.Error:
jar?"o LogEntryType = EventLogEntryType.Error;
mj9]M?] break;
X<1ymb3 case TraceLevel.Warning:
' 94HVag LogEntryType = EventLogEntryType.Warning;
g|!=@9[dv break;
%]O#t<D case TraceLevel.Info:
8R;E+B{ LogEntryType = EventLogEntryType.Information;
;{n*F=%uC break;
G0ENk|wbbj case TraceLevel.Verbose:
!A_KCM:Ym LogEntryType = EventLogEntryType.SuccessAudit;
\nQEvcH break;
EVbDI yFn default:
Uf$IH!5;Z LogEntryType = EventLogEntryType.SuccessAudit;
?/p."N:]H break;
a1weTn* }
RZj06|r8 <)@^TRS EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
_)#~D*3 //写入事件日志
fK=vLcH eventLog.WriteEntry(messageText, LogEntryType);
wp-3U}P2( 23q2u6.F` }
`7',RUj|D catch {} //忽略任何异常
rO1.8KKJ }
N=:xyv } //class ApplicationLog
u)ZZ/| }
#mO.[IuD vF@.BM> 12.Panel 横向滚动,纵向自动扩展
|'#uV)b0@ <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
uYc&Q$U k_%maJkXp 13.回车转换成Tab
6AmFl< <script language="javascript" for="document" event="onkeydown">
l02aXxT)] if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
P$G|o|h event.keyCode=9;
W8!8/IZbN </script>
Z?w=- UX'tdB
!A onkeydown="if(event.keyCode==13) event.keyCode=9"
@gJPMgF$F aII:Pzh]B 14.DataGrid超级连接列
u #7AB>wi{ DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
@{8805Dp sM%.=~AN 15.DataGrid行随鼠标变色
cACnBgLl private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
zU};|Zw {
V0:db if (e.Item.ItemType!=ListItemType.Header)
VU|Cct&) {
I~c}&'V e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
DAd$u1 e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
G@S'_ }
11yS2D
}
u+8?'ZT, g|4v>5Y 16.模板列
Al]z= <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
k:zGv <ITEMTEMPLATE>
:.\h.H; <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
XpOQBXbt </ITEMTEMPLATE>
HM\gOz </ASP:TEMPLATECOLUMN>
%w6lNl _]=, U.a=/ <ASP:TEMPLATECOLUMN headertext="选中">
UX<0/"0h <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
T}A{Xu*:+H <ITEMTEMPLATE>
o/\z4Ri)$ <ASP:CHECKBOX id="chkExport" runat="server" />
Ga^k1TQq </ITEMTEMPLATE>
,Onu% <EDITITEMTEMPLATE>
F?TmOa0 <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
v#+tu,)V; </EDITITEMTEMPLATE>
2VS#=i(B^ </ASP:TEMPLATECOLUMN>
/ec~^S8X v_@!u` 后台代码
k\M">K0E protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
BH=CoD. {
z3-AYQ.H //改变列的选定,实现全选或全不选。
'+C%]p CheckBox chkExport ;
Jz\'%O' if( CheckAll.Checked)
NW;wy;; {
fBt7#Tc=U foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
j-etEWOTr {
GEi^3UD chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
&rxR"^x\ chkExport.Checked = true;
zX/9^+p: }
3836Di:{ }
Cqk6I gw else
y<5xlN(+v {
uM~j foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
.](s\6' {
D$c4's`5 chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
_qqJ>E<0 chkExport.Checked = false;
\7,'o] >M- }
v|mZcAz }
c}FZb$q# }
Yt;.Z$i , tI(co5 W 17.数字格式化
lL:J: c^8y/wfok 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
n-_-;TYH <%#Container.DataItem("price","{0:¥#,##0.00}")%>
^KMZB U9B|u`72 int i=123456;
%G s!oD string s=i.ToString("###,###.00");
/=qn1 >j$CM:w 18.日期格式化
=
8%+$vX bx<7@ 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
/P|jHK|{ FeFH_ 显示为: 2004-8-11 19:44:28
#VEHyz 6P I2'UC)
0 我只想要:2004-8-11 】
_sCpyu <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
2xd G&}$fa P1ab2D 应该如何改?
]Z\.Vx R#Bdfmldq 【格式化日期】
;=6~,k) 3J}bI{3 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
up7]Yy;o= L1k_AC1.M 【日期的验证表达式】
<&rvv4*H YvK8;<k@-? A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
?79ABm
a ^((\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})))?$
QY<2i-A X^H)2G>e B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
Dl%NVi+n ^\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]))$
Pw'3ya8 dLm~]V3 【大小写转换】
=6TD3k6(2 HttpUtility.HtmlEncode(string);
!}^{W)h[ HttpUtility.HtmlDecode(string)
j>Htaa xAD: Z" 19.如何设定全局变量
v7/qJ9l b#^UP Global.asax中
eJ#q! < D[)g-_3f6< Application_Start()事件中
X&6p_Lo *eytr#0B- 添加Application[属性名] = xxx;
[x5T7= >LwZ"IEV 就是你的全局变量
NQ!jkojD q8.K-"f(Q 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
DEL#MD! *#,wV
HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
p/xxoU Nq)=E[$ 【ASPNETMENU】点击菜单项弹出新窗口
s7<x~v+^ ,xrXby|R" 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
(&FSoe/![' <?xml version="1.0" encoding="GB2312"?>
_*+ 7*vAL <MenuData ImagesBaseURL="images/">
W^q;=D6uh <MenuGroup>
BXVmt!S5F <MenuItem Label="内参信息" URL="Infomation.aspx" >
&/4W1=>( <MenuGroup ID="BBC">
'k#^Z <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
S{(p<%)[ <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
Y0fO.k#C^ ......
;zE5(3x fQy
C6C 最好将你的aspnetmenu升级到1.2版
l8AEEG8> eQaxZMU 21.读取DataGrid控件TextBox值
LSu^#B foreach(DataGrid dgi in yourDataGrid.Items)
>"<k8wn {
46P6Bwobh TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
69j~?w)^ tb.Text....
&<|-> *v }
FJ(B]n[> oYh<k 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?
[+MX$y Xz.Y-5) 〖思归〗
"3i80R\w`F <asp:TemplateColumn HeaderText="数量">
2
ssj(Qo <ItemTemplate>
fxoi<!|iGY <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
Ag4Ga?&8ec onkeyup="javascript:DoCal()"
-6~y$c&c />
Z'*Z@u3 7kX$wQZ_ <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
YaNH.$.: </ItemTemplate>
#W%)$kc </asp:TemplateColumn>
^?7dOW vG<pc_ak <asp:TemplateColumn HeaderText="单价">
?9gTk
\s?R <ItemTemplate>
%V(N U_o <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
uJam
$V onkeyup="javascript:DoCal()"
~l*?D7[o />
pjHRV[`AP v]{uxlh <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
o%WjJ~!zL w0j/\XN2s </ItemTemplate>
yB4H3Q ) </asp:TemplateColumn>
*fH_lG% ./&zO{|0] <asp:TemplateColumn HeaderText="金额">
,s><kHJ <ItemTemplate>
'uKkl(==% <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
%t`SSW7I </ItemTemplate>
qQxA@kdd </asp:TemplateColumn><script language="javascript">
mYh5#E41J function DoCal()
`kNi*I^ {
)o9Q5Lq var e = event.srcElement;
:K^gu%,&$ var row = e.parentNode.parentNode;
v"~Do+*+ var txts = row.all.tags("INPUT");
=%3b@}%HqS if (!txts.length || txts.length < 3)
`e $n$Bh return;
~3bZ+*H> h^A3 0f_x var q = txts[txts.length-3].value;
$' (QTEM var p = txts[txts.length-2].value;
) Kc%8hBv *m$PH"
if (isNaN(q) || isNaN(p))
MZ5Y\-nq\ return;
WfRfx#MMt S~k*r{?H}) q = parseInt(q);
6hM]% p = parseFloat(p);
)XP#W|; -.{oqs$ txts[txts.length-1].value = (q * p).toFixed(2);
4N~+G ` }
,'C30 A*p </script>
$Eio$TI JYwyR++uo >sQ2@"y)s2 8VP"ydg-U {4:
-0itG 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。
fimb]C I|x page_load
4O`6h)!NQ page.smartNavigation=true
l801`~*gO cGE=. 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 ?
Z6Nj<2u2 private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
n1*&%d'7 {
?h!t$QQ!M for(int i=0;i<e.Item.Cells.Count-1;i++)
-]Q(~'a if(e.Item.ItemType==ListItemType.EditType)
6P~aW {
-=$% { e.Item.Cells.Attributes.Add("Width", "80px")
BrJ
o!@< }
J ;UBnCg }
q]6_rY. I#U>5"%\a 26.对话框
2'wr={>W private static string ScriptBegin = "<script language=\"JavaScript\">";
Gz>Lqd private static string ScriptEnd = "</script>";
|1(rr% EJZ@p7*Oj public static void ConfirmMessageBox(string PageTarget,string Content)
ohrw\<xsu {
g.x=pt string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
7L=T]W B(j02<- ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
1$$37?FE {ITv&5?> Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
5-D`<\ ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
-<^jGrb //Response.Write(strScript);
8zdT9y|Ig }
r^$\t0h(U8 6hkkNXqkf 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
[N)#/6j oi2J:Y4 1.1 取当前年月日时分秒
YywEZ?X currentTime=System.DateTime.Now;
],8;eq%W) `gBD_0<T7 1.2 取当前年
_QR
g7 int 年= DateTime.Now.Year;
8>UKIdp b5AGk 1.3 取当前月
F:%^&%\ int 月= DateTime.Now.Month;
M
h`CP k$C"xg2 1.4 取当前日
Dp*:Q){>E int 日= DateTime.Now.Day;
8q?;2w\l >']+OrQH 1.5 取当前时
W*k` int 时= DateTime.Now.Hour;
v&xKi>Ail NB EpM 1.6 取当前分
$ye^uu;Z int 分= DateTime.Now.Minute;
xXF2"+ (NX)oP 1.7 取当前秒
]}Pl%. int 秒= DateTime.Now.Second;
[ S5bj]D hwiKOP 1.8 取当前毫秒
HOE2*4r int 毫秒= DateTime.Now.Millisecond;
ibvJWg {G]?{c)" 28.自定义分页代码:
Qi_&aU$>lM {|s/]W 先定义变量 :
,Ij=b public static int pageCount; //总页面数
1h2H1gy5I3 public static int curPageIndex=1; //当前页面
z^r|3; |U#DUqw 下一页:
9Uk(0A if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
/I`3dWL {
;Xqn-R DataGrid1.CurrentPageIndex += 1;
d7* CwY9" curPageIndex+=1;
B={/nC}G~ }
kl"
]Nw'C W9dYljnZ8i bind(); // DataGrid1数据绑定函数
q69H^E= Q uB+vL 上一页:
Vt'L1Wr0v if(DataGrid1.CurrentPageIndex >0)
jZRh KT {
MEEAQd<* DataGrid1.CurrentPageIndex += 1;
RcQ>eZHl curPageIndex-=1;
G+U3wF], }
!2z!8kI l]H0g[ bind(); // DataGrid1数据绑定函数
``!G I'^ QZ&4:K+{ 直接页面跳转:
YgEM:'1f int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
+@0TMK,P yO=p3PV d if(a<DataGrid1.PageCount)
<;%0T
xK|U {
+semfZ) this.DataGrid1.CurrentPageIndex=a;
rj 3YTu` }
4.8nY\_WF {7qA &c= bind();
\m f*ge\ "A;s56 }'& 29.DataGrid使用:
2JVxzj<~` BEWro|]cM 添加删除确认:
l7z6i*R private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
pYt/378w {
QQFf5^ foreach(DataGridItem di in this.DataGrid1.Items)
\^& {
r'p =`2= if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
9x?B5Ap[ {
}p=g*Zo*C; ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
MAnp{ }
%(`#A.yaE }
bg}+\/78# }
jq(qo4~; :6Pnie 样式交替:
>Q=Ukn;k ListItemType itemType = e.Item.ItemType;
d8E,o7$m |g<* Rk0
if (itemType == ListItemType.Item )
i?;R}%~ {
{^J!<k,R\; e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
]dG\j^e| e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
T1W:>~T5# }
b#/i.!:a else if( itemType == ListItemType.AlternatingItem)
U]1(&MgV {
\0ov[T N.> e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
!,Nwts>m e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
R"3
M[^ }
v0#*X5C1' {oUAP1V^ 添加一个编号列:
JO=1ivZl DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
h%TLD[[/jr DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
.wy$-sG81 %v{1#~u for(int i=0;i<dt.Rows.Count;i++)
Ly7!R$X {
H-I{-Fm dt.Rows["number"]=(i+1).ToString();
~zF2`. }
a
}'->H pjwaL^ DataGrid1.DataSource=dt;
-Wc~B3E| DataGrid1.DataBind();
_6MdF<Xb/ B[F-gq- DataGrid1中添加一个CheckBox,页面中添加一个全选框
ka/XK[/' private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
02\JzBU {
m!O;>D foreach(DataGridItem thisitem in DataGrid1.Items)
Yp1bH+/u {
gcf6\f}\< ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
Dx-KMiQ,"( }
q+ pOrGh }
5f^>b\8+ | \4{2eU 将当前页面中DataGrid1显示的数据全部删除
qaVy. foreach(DataGridItem thisitem in DataGrid1.Items)
gg^1b77hT {
!VP %v&jKm if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
!tXZ%BP.u {
/(?@mnq_ string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
oY=1C} Del (strloginid); //删除函数
3A,rHYS }
"NzD1k6.L }
[ohBPQO G[h(xp?,l 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
:!Ig- +W l-Nly>~ 在Application_Start中添加以下代码:
iev>9j Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
Bs8[+Ft5 AppSettings["ConnStr"].ToString();
g%a|q~) >MG(qi 31. 变量.ToString()
2(M6(xH> A}5fCx.{ 字符型转换 转为字符串
"e6|"w@8 12345.ToString("n"); //生成 12,345.00
iiG f'@/ 12345.ToString("C"); //生成 ¥12,345.00
8K{[2O7i) 12345.ToString("e"); //生成 1.234500e+004
1A<,TFg 12345.ToString("f4"); //生成 12345.0000
q; jiw#_ 12345.ToString("x"); //生成 3039 (16进制)
~n?>[88" 12345.ToString("p"); //生成 1,234,500.00%
BqH]-'1G c</1 32、变量.Substring(参数1,参数2);
qAY%nA>jO / nZ;v4 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
vq!uD!lr *7$P] 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)
55Gtp\L <SCRIPT language="javascript">
z42F,4Gk <!--
7&B$HZ function gook(pws)
LL*mgTQ {
bAwl:l\` frm.submit();
DmqSQA }
g{:<