1. 打开新的窗口并传送参数:
]
bM)t< 1L%CJ+Q#0i 传送参数:
jqWu response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
\f]k CB 9oRy)_5Z(= 接收参数:
lGV0*Cji string a = Request.QueryString("id");
/f:dv?!km string b = Request.QueryString("id1");
=)M/@T Hu\B"fdS 2.为按钮添加对话框
UldXYtGe Button1.Attributes.Add("onclick","return confirm(’确认?’)");
2 Wt> Mi button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
"9ZID-~] N=4G=0 `ke 3.删除表格选定记录
MW! srTQ_ int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
7L`A{L string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
)IP,;< iZ#!O*> 4.删除表格记录警告
_Zp}?b5Q private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
nF54tR[ {
|'.*K]Yp switch(e.Item.ItemType)
1Ce@*XBU {
yQ_B)b case ListItemType.Item :
r54&XE]O case ListItemType.AlternatingItem :
!POl;%\ case ListItemType.EditItem:
9A/\h3HrJ TableCell myTableCell;
Hbj,[$Jb myTableCell = e.Item.Cells[14];
#X%~B' LinkButton myDeleteButton ;
}6p@lla,%] myDeleteButton = (LinkButton)myTableCell.Controls[0];
PXK7b2fE. myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
6_J$UBT break;
^Ew]uN>, default:
8UXjm_B^' break;
@)UZ@ ~R }
8ZM?)#`@{ 5m*iE*+ }
WQ~;;.v# j| v%)A 5.点击表格行链接另一页
v0
nj M private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
Upc+Ukw {
j>*R]mr6 //点击表格打开
k52/w)Ro,$ if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
)bS~1n_0 e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
wF
IegC( }
Sc>,lIM S'|,oUWDb 双击表格连接到另一页
?zeJ#i ^WHE$4U` 在itemDataBind事件中
o>).Cj if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
@E;=*9ek{u {
4iqoR$3Fc string OrderItemID =e.item.cells[1].Text;
HTVuStM8 ...
*i\Qo e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
D N'3QQn }
na#CpS;pc qIVx9jNN 双击表格打开新一页
-l`f)0{ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
"oTHq]Ku {
WB?jRYp string OrderItemID =e.item.cells[1].Text;
OP~HdocB ...
di?K"Z> e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
G^~k)6v=m }
x^HGVWw_ SFB~
->db ★特别注意:【?id=】 处不能为 【?id =】
hU(umL< 6.表格超连接列传递参数
:V1W/c <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
MC?,UDNd% <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
gcE|#1> #D<C )Q 7.表格点击改变颜色
bP8Sj16q if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
O;z,qo X {
~rlB'8j( e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
~?D4[D|sB this.style.color=’buttontext’;this.style.cursor=’default’;");
9)y/:sO<P }
_76PIR{an Ozw;(fDaU 写在DataGrid的_ItemDataBound里
t`WB;o! if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
NhfJ30~ {
rx $mk e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
r#+d&.| this.style.color=’buttontext’;this.style.cursor=’default’;");
zAK+8{, e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
{!.(7wV\ }
VO,!x~S! RS"H8P4W L;
T8?+ x 8.关于日期格式
vGc,vjC3x )'Oh`$M 日期格式设定
}E+!91't.^ DataFormatString="{0:yyyy-MM-dd}"
;,$NAejgd O!zV)^r 我觉得应该在itembound事件中
B\<Q ;RI2; e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
Ao&\E cIOT , R'@%,/ 9.获取错误信息并到指定页面
IC#>X5 IM:=@a{ 不要使用Response.Redirect,而应该使用Server.Transfer
|M>eEE*F< 03xa'Of> e.g
H9KKed47d/ // in global.asax
N8!cO[3Oh protected void Application_Error(Object sender, EventArgs e) {
{s)+R[?m<o if (Server.GetLastError() is HttpUnhandledException)
q`|LRz&al Server.Transfer("MyErrorPage.aspx");
x9$` W ~3UQ|j //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
{p)",)td }
#,S0HDDHn P::TO-C 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
9iXeBC G3{Q"^S" 10.清空Cookie
rFIqC:= Cookie.Expires=[DateTime];
/d0K7F Response.Cookies("UserName").Expires = 0
^g*pGrl# 4oK?-|=? 11.自定义异常处理
.clP#r{U //自定义异常处理类
guX
9} using System;
*Nw&_<\9Q using System.Diagnostics;
/+8JCp
$iI]MV%= namespace MyAppException
QBtnx[ {
l=]cy-H /// <summary>
aY3^C q(r /// 从系统异常类ApplicationException继承的应用程序异常处理类。
1)9sf0LyU /// 自动将异常内容记录到Windows NT/2000的应用程序日志
j;']cWe /// </summary>
2]I4M[|&z public class AppException:System.ApplicationException
$9]m=S {
UUSq$~Ct public AppException()
u*e.yN {
i#7DR>XF/ if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
WF2}-NU" }
IKABB W A&s:\3*Kh public AppException(string message)
2uG0/7 {
l-K9LTd LogEvent(message);
cYFiJJLG] }
j H19k}D Acnl^x7Y1 public AppException(string message,Exception innerException)
e.]K L(' {
aF)1Nm[ LogEvent(message);
GRGzP&}@ if (innerException != null)
^sa#8^,K {
jL(qf~c_ LogEvent(innerException.Message);
:Nu^ }
c05TsMF&O }
-%2[2p ;ToKJ6hN|* //日志记录类
HuB<k3#sPy using System;
S7=Bd[4 using System.Configuration;
pV.Av using System.Diagnostics;
Nqw&< x+ using System.IO;
>fe-d#!{ using System.Text;
umD!2
w using System.Threading;
AP[|Ta 6^uq?
namespace MyEventLog
T^:UBjK6t{ {
&f!z1d-qg? /// <summary>
bx<RV7>0 /// 事件日志记录类,提供事件日志记录支持
6WV\}d: /// <remarks>
GMMp|WV| /// 定义了4个日志记录方法 (error, warning, info, trace)
+hn+K1 /// </remarks>
@b"t]#V(E /// </summary>
ZPiq-q public class ApplicationLog
}xBc0gr {
MHSs!^/g5 /// <summary>
tYZ[68 /// 将错误信息记录到Win2000/NT事件日志中
}Mo=PWI1? /// <param name="message">需要记录的文本信息</param>
@|<<H3I /// </summary>
:{qv~&+C public static void WriteError(String message)
]GN7+8l {
sW)Zi WriteLog(TraceLevel.Error, message);
ld3-C55 }
-M%_\;"de T;@;R% /// <summary>
,$1eFgY% /// 将警告信息记录到Win2000/NT事件日志中
WtViW=j' /// <param name="message">需要记录的文本信息</param>
RMd[Yr2e /// </summary>
?dD&p8{ public static void WriteWarning(String message)
+u!0rLb {
XS`M-{f` WriteLog(TraceLevel.Warning, message);
s >e=?W }
Wi[ ~fI8^! ,$;yY)x7U /// <summary>
,
FhekaA /// 将提示信息记录到Win2000/NT事件日志中
'6Ay&A3N] /// <param name="message">需要记录的文本信息</param>
CF+_/s#j^ /// </summary>
350_CN, public static void WriteInfo(String message)
u`y><w4i {
J\d3N7_d WriteLog(TraceLevel.Info, message);
MxSM@3 v( }
)ap_Z6 /// <summary>
cs T2B[f9D /// 将跟踪信息记录到Win2000/NT事件日志中
#k_HN}B /// <param name="message">需要记录的文本信息</param>
$Z|ffc1 /// </summary>
F_Y7@Ei/ public static void WriteTrace(String message)
hQ]H
/+\ {
JAAI_gSR3 WriteLog(TraceLevel.Verbose, message);
1"/He ` 4 }
yyv8gH I*x[:)X8 /// <summary>
Jj,U RD&0R /// 格式化记录到事件日志的文本信息格式
G"X8}:} /// <param name="ex">需要格式化的异常对象</param>
!,[C]Q1 /// <param name="catchInfo">异常信息标题字符串.</param>
qtiz a~u /// <retvalue>
4!+pc-}- /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
_/Gczy4)# /// </retvalue>
V6t,BJjS /// </summary>
`kbSu} public static String FormatException(Exception ex, String catchInfo)
6T+FH;h
{
5O~HWBX. StringBuilder strBuilder = new StringBuilder();
Mr?Xp(.}G if (catchInfo != String.Empty)
j6>.n49_ {
.u:81I=w( strBuilder.Append(catchInfo).Append("\r\n");
r) $+ }
(4'$y`Z strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
P`#Z9 HM4 return strBuilder.ToString();
g)s{IAVx }
BYs-V: f8M$45A' /// <summary>
p!sWYui /// 实际事件日志写入方法
`!Ds6 /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
CamE' /// <param name="messageText">要记录的文本.</param>
1QmH{jM /// </summary>
T.Ryy"%F private static void WriteLog(TraceLevel level, String messageText)
U>V&-kxtV {
>=UF-xk; try
2P/K
K {
c6nflk.l EventLogEntryType LogEntryType;
tjGd ) switch (level)
OR}c)|1 {
H|RT?Q case TraceLevel.Error:
PZ{Dv'C LogEntryType = EventLogEntryType.Error;
KN7^:cC break;
FDVcow*] n case TraceLevel.Warning:
l5\"9 ,< LogEntryType = EventLogEntryType.Warning;
UNPezHaz break;
2zVJ vn7 case TraceLevel.Info:
1AG=%F|. LogEntryType = EventLogEntryType.Information;
`}BF${vF break;
X@k`3X case TraceLevel.Verbose:
d+X}cq= LogEntryType = EventLogEntryType.SuccessAudit;
Kw8u`$Ad7 break;
mN!lo;m5 default:
@O@GRq&V LogEntryType = EventLogEntryType.SuccessAudit;
z "+Mrew break;
Q3|T':l4 }
GP&vLt51 t5'V6nv EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
Nluv/?< //写入事件日志
Pcu#lWC$ eventLog.WriteEntry(messageText, LogEntryType);
$aN-Y?U% N@Y ljz| }
)RO<o O catch {} //忽略任何异常
~4s'0 w^ }
KN tt } //class ApplicationLog
cx}Q2S }
(FJ9-K0b{n L=q+|j1> 12.Panel 横向滚动,纵向自动扩展
p98~&\QT <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
$BFvF
,n ?t+5s] 13.回车转换成Tab
% ]I ZLJ <script language="javascript" for="document" event="onkeydown">
&^}6
9 if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
|1ST=O7.LH event.keyCode=9;
YO}1(m </script>
wjh=Q _)]+hUwY onkeydown="if(event.keyCode==13) event.keyCode=9"
N\HQN0d9 tID%}Z v 14.DataGrid超级连接列
abJ"
[ DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
;5tazBy&:C HsnLm67' 15.DataGrid行随鼠标变色
br0++}vwL private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
INkD=tX {
?Y:8eD"* if (e.Item.ItemType!=ListItemType.Header)
zN{K5<7o {
lW(px^&IN e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
c>/.
;p e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
LJOr!rWi }
-
/(s#D }
'Hi:
2Wh GrTulN? 16.模板列
^bc;[x&N <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
c%[#~;E <ITEMTEMPLATE>
[Z~ 2 <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
ithewup </ITEMTEMPLATE>
LwhyE:1 </ASP:TEMPLATECOLUMN>
/F4pb]U!* 81hbk(( <ASP:TEMPLATECOLUMN headertext="选中">
.\8X[%K9nc <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
H(Q.a=&4!p <ITEMTEMPLATE>
7<jZ`qdq_ <ASP:CHECKBOX id="chkExport" runat="server" />
=xNv\e </ITEMTEMPLATE>
/Nr*`l <EDITITEMTEMPLATE>
hgLj< <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
E@-KGsdhK </EDITITEMTEMPLATE>
%e`$p=m </ASP:TEMPLATECOLUMN>
,_X/Gb6) 59zENUYl 后台代码
XuD=E protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
rHf&:~ {
+ J{0 E //改变列的选定,实现全选或全不选。
<JV"@H= CheckBox chkExport ;
m8SA6Y\ if( CheckAll.Checked)
M)+$wp {
Ndo a4L)$ foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
C=s1R;"H {
!A>z(eIsv` chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
?UK|>9y}Z chkExport.Checked = true;
lj{VL}R }
cZ(elZ0~ }
0b/ WpP else
"H&"(= {
-AhwI foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
t\RF=BbJJ {
B%KG3] chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
wtT}V=_ chkExport.Checked = false;
&z]K\-xp }
lip[n;Ir> }
kl"+YF5/ }
"*;;H^d /sr 2mt-Q 17.数字格式化
@h*fFiY&{ HLBkR>e 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
?%VI{[y#> <%#Container.DataItem("price","{0:¥#,##0.00}")%>
Ov#=]t5 jS;J:$>^ int i=123456;
/s-A?lw^2 string s=i.ToString("###,###.00");
>yXN,5d[ 2P]L9'N{Y 18.日期格式化
CH
fVQ|!\ `'\t$nU 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
`xz<>g9e /
}R z=& 显示为: 2004-8-11 19:44:28
}lK3-2Pk T]j.=|,d 我只想要:2004-8-11 】
Wd0[%`dq <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
Yp0/Ab(v %0 #XPc(" 应该如何改?
{8R"O{ McoK@q; 【格式化日期】
~GuMlV8 8)kLV_+% 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
oW^*l#v gORJWQv 【日期的验证表达式】
\`ZW* EtPI ]r3Kg12Mi A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
2DB7+aZ* ^((\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})))?$
=CL}
$_ 2 o#,kGd B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
4O:W#bx ^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$
<$N"q uNn[[LS 【大小写转换】
:K
~ HttpUtility.HtmlEncode(string);
oQv3GpO HttpUtility.HtmlDecode(string)
\}~s2Y5j Y-'78BJk 19.如何设定全局变量
UxD5eJJ Kf 2jD4z} Global.asax中
q %0Cg= hky;CD~$ Application_Start()事件中
O$kq`'9
peJKNX.!q 添加Application[属性名] = xxx;
'+
xu#R [xh*"wT#g 就是你的全局变量
goJ|oi saU]`w_Z* 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
OEPa|rb }|B=h HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
2"fO6!hh ^'p|!`: 【ASPNETMENU】点击菜单项弹出新窗口
A~Xq,BxCV zZiJ 9 e 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
m%"uPv\ <?xml version="1.0" encoding="GB2312"?>
0wFH!s/B <MenuData ImagesBaseURL="images/">
2Bk$ lx7 <MenuGroup>
;Nr ]X <MenuItem Label="内参信息" URL="Infomation.aspx" >
*WE1;msr <MenuGroup ID="BBC">
3x~{QG5Gn <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
_U{([M>; <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
#{9G sD ......
|!q$_at
@HBEt^! 最好将你的aspnetmenu升级到1.2版
^E6d`2w- 'a^{=+ 21.读取DataGrid控件TextBox值
pG^}Xf2a foreach(DataGrid dgi in yourDataGrid.Items)
>K# ,cxY {
=`Y.=RL+'n TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
[TF8'jI0 tb.Text....
^uS/r#l }
OG3/-K 8R b dJ+@r 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?
E42eOGp9i ]APvp.Tw: 〖思归〗
dr{y0`CCN <asp:TemplateColumn HeaderText="数量">
-[OXSaf6 <ItemTemplate>
Omi^>c4G <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
$|$e% onkeyup="javascript:DoCal()"
|wox1Wt|E />
8h<ehNX ^I $6F)R| <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
xsjO)))f </ItemTemplate>
iqhOi|! </asp:TemplateColumn>
0)9"M.AIvo 55t\B ms{ <asp:TemplateColumn HeaderText="单价">
`]$?uQ <ItemTemplate>
M+wt__vHf <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
#a| L3zR5v onkeyup="javascript:DoCal()"
$jd<v1"o />
aTGdmj! A =Dhod <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
nK3k]gLc{ kl1Y] ?z} </ItemTemplate>
E3a_8@ZB7 </asp:TemplateColumn>
WxbsD S; _,6f#t <asp:TemplateColumn HeaderText="金额">
7GZgu$' <ItemTemplate>
I8H%=Kb?9 <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
6zIgQ4Bp24 </ItemTemplate>
*m+5Pr`7 </asp:TemplateColumn><script language="javascript">
U-0#0} _ function DoCal()
HNa]H;-+5 {
^D@b;EyK var e = event.srcElement;
ig 0u^BC var row = e.parentNode.parentNode;
Q36)7=at var txts = row.all.tags("INPUT");
iA!7E;o if (!txts.length || txts.length < 3)
{dPgf return;
Lc<eRVNd, %lr|xX var q = txts[txts.length-3].value;
'f/Lv@]a var p = txts[txts.length-2].value;
lH|LdlX )[&_scSa if (isNaN(q) || isNaN(p))
@\(v X ] return;
?IX!+>.H OlxX.wP q = parseInt(q);
lEPAP|~uw p = parseFloat(p);
{OT:3SS7 j1Yq5`ia txts[txts.length-1].value = (q * p).toFixed(2);
7.<^j[? }
{+("C]
b </script>
4ZT A> y?30_#[dN L6
6-LMkH +TN9ujL6@ SQE[m9v 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。
,6<" page_load
(}!C4S3# page.smartNavigation=true
(#(Or %-;bu| 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 ?
yy2Ie private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
#
Oup^ o@ {
AyE\fY5 for(int i=0;i<e.Item.Cells.Count-1;i++)
`PI(%N if(e.Item.ItemType==ListItemType.EditType)
XeUC0K[D {
daZQz"PP e.Item.Cells.Attributes.Add("Width", "80px")
)_jSG5k }
ned2lC&'d> }
5 HV)[us Q"J-tP! 26.对话框
~@I@} n private static string ScriptBegin = "<script language=\"JavaScript\">";
OIaYHA private static string ScriptEnd = "</script>";
[JTto!Ih$ U; xF#e public static void ConfirmMessageBox(string PageTarget,string Content)
Uhh
l3%p {
(7$$; string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
}dSFAKI2dM j!#OG ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
CfT/R/L f1{z~i9@$ Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
H*e'Cs/ ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
;~zNqdlH //Response.Write(strScript);
sDiHXDI_m }
s<T?pH ((DzUyK 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
X=p"5hhfn $v;dV@tB 1.1 取当前年月日时分秒
#]KgUc5B currentTime=System.DateTime.Now;
8IY19>4'5J yOHXY& 1.2 取当前年
3"
Vd==oK~ int 年= DateTime.Now.Year;
e (\I_ 'Am- vhpm 1.3 取当前月
;q#]-^ int 月= DateTime.Now.Month;
fu\s`W6f& iL?iz?+.%@ 1.4 取当前日
(fk5' int 日= DateTime.Now.Day;
"-i#BjZl/ yFIIX=NC 1.5 取当前时
5vZ#b\;#V int 时= DateTime.Now.Hour;
EO"C8z'al p6 xPheD 1.6 取当前分
v"1Po_` int 分= DateTime.Now.Minute;
BD;H
zQuM !. 1.7 取当前秒
2:v <qX int 秒= DateTime.Now.Second;
z%"Ai)W/{ Q .RO 1.8 取当前毫秒
jMpa?Jp 1 int 毫秒= DateTime.Now.Millisecond;
SN]LeXesS ,jh~;, w2 28.自定义分页代码:
-l*A \aSz2lxEHn 先定义变量 :
ZCiY,;c public static int pageCount; //总页面数
oK Kz 4 public static int curPageIndex=1; //当前页面
Pern*x9$ {sc[RRN~C 下一页:
a1x7~)z>zi if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
K;kM_%9u {
T)\NkM& DataGrid1.CurrentPageIndex += 1;
-}<g-*m"q curPageIndex+=1;
snMQ"ju }
LdWc
X`K >BiRk%x bind(); // DataGrid1数据绑定函数
"n- pl 70iH0j) 上一页:
>!BFt$sd if(DataGrid1.CurrentPageIndex >0)
TgaYt\"i[ {
<f%/px%1 DataGrid1.CurrentPageIndex += 1;
RV!<?[ curPageIndex-=1;
-0|K,k }
W);W.:F xh'^c^1 bind(); // DataGrid1数据绑定函数
eqFvrESN~= ePA;:8)_j 直接页面跳转:
~iTxv_\=6u int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
6Y?`=kAp 9O >z4o if(a<DataGrid1.PageCount)
%x2b0L\g {
)/%S=c this.DataGrid1.CurrentPageIndex=a;
84`rbL!M }
W^R'@ HF4Lqh'oco bind();
s-6:N9- jH0Bo; 29.DataGrid使用:
{8m1dEC^@Q 1P5LH5 添加删除确认:
!J#.!}3 private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
/2w@K_Px6 {
qX@9N=g`#O foreach(DataGridItem di in this.DataGrid1.Items)
w6U
@tW {
#O|lfl>} if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
8ui=2k( {
TG]}X\c+V| ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
nEVbfNo0 }
JD&U}dJ }
#:
hVF/ }
)0|):g pTET%)3 样式交替:
6Q$BUL}2? ListItemType itemType = e.Item.ItemType;
*gSO&O= r<_2qICgP if (itemType == ListItemType.Item )
x u,htx {
q)oN2- e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
E\!n49 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
!3x*k;0 }
ewQe/Fq else if( itemType == ListItemType.AlternatingItem)
k`@w(HhS {
pzSqbgfrQ e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
+ (=I8s/ e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
1*c>I@I; }
|Mlh; A\g% 添加一个编号列:
<ge}9pU)o^ DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
wT%"5: DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
A;t
zRe }} # be for(int i=0;i<dt.Rows.Count;i++)
dJE`9$jN {
%yhI;M^ dt.Rows["number"]=(i+1).ToString();
@ RX`> r{_ }
|D(&w+( Xq%*#)M; DataGrid1.DataSource=dt;
O\JD, w DataGrid1.DataBind();
{9;eH'e >]?Jrs DataGrid1中添加一个CheckBox,页面中添加一个全选框
oT!/J private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
:p$EiR {
D"`[6EN[ foreach(DataGridItem thisitem in DataGrid1.Items)
]umZJZ#Y {
*o2#eI ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
-fQX4'3R }
4@/z }
$owb3g(%4 %09*l%,; 将当前页面中DataGrid1显示的数据全部删除
)-)pYRlO foreach(DataGridItem thisitem in DataGrid1.Items)
,5:![ {
' 3VqkQ4 if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
PC0HH {
O(Td:Zdp string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
OaNc9c" Del (strloginid); //删除函数
<vLdBfw&N }
i :EO(` }
c
_p[yS ooDdV
> 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
#!1IP~ IadK@?X6j 在Application_Start中添加以下代码:
;YM]K R; Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
ex=)H%_| AppSettings["ConnStr"].ToString();
QA! #s\ zM\IKo_" 31. 变量.ToString()
)1K! [W}t mCK],TOA: 字符型转换 转为字符串
Mb~~A5 12345.ToString("n"); //生成 12,345.00
D2Vv\f 12345.ToString("C"); //生成 ¥12,345.00
pd7O`.3 12345.ToString("e"); //生成 1.234500e+004
t#{x?cF 12345.ToString("f4"); //生成 12345.0000
*{Yi}d@h( 12345.ToString("x"); //生成 3039 (16进制)
)5'rw<:=" 12345.ToString("p"); //生成 1,234,500.00%
]*a@*0= _ flgQ 32、变量.Substring(参数1,参数2);
i<Q&
D\Pv OMi02tSm 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
mDlCt_h W0U`Kt&~a 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
/t$*W\PL@ <SCRIPT language="javascript">
niQ+EAD <!--
i<bxc function gook(pws)
B#Qpd7E+* {
r:.6"VQu} frm.submit();
U(P:J e }
p!QR3k.9s //-->
I}rGx h&q=I.3O|? </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
7^&lbzVbm( <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
R~!\-6%_ <tr>
` %l&zwj> <td>
7x%S](m% <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
,}n=Z <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
{clCn <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
\+G.]|" Y 7
TmK <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
8V,"Id][ <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
7t`E@dm T0s35z9 </td>
iF8@9m {[my"n2 </tr>
CH55K[{< Imke/ =h </form>
Z4\tY^NI n}VbdxlN 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。
%-\FVKX Y'2-yB 下面是获取用户输入的登陆信息的代码:
F9F" F string name;
f_~}X#._ name=Request.QueryString["EmailName"];
=obt"K%n PIgGXNo try
3,%nkW {
U
7EHBW int a=name.IndexOf("@",0,name.Length);
Bl=nj.g f_user.Value=name.Substring(0,a);
,n^TN{# f_domain.Value=name.Substring(a+1,name.Length-(a+1));
YfV"_G.ad| f_pass.Value=Request.QueryString["Psw"];
@;g`+:= }
sE^ns\&QP= =.VepX|?D catch
E1^aAlVSD {
(_s;aK Script.Alert("错误的邮箱!");
B,r5kQI4 Server.Transfer("index.aspx");
V[4(~,9 }