1. 打开新的窗口并传送参数:
~$iIVJ` d
F9!G;V 传送参数:
Cdas P9"1 response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
TH; R & -{DfNK c 接收参数:
]h>_\9qO string a = Request.QueryString("id");
L\)ZC string b = Request.QueryString("id1");
-yE/f2PgQ QrB@cK] 2.为按钮添加对话框
KM}f:_J*lg Button1.Attributes.Add("onclick","return confirm(’确认?’)");
qfL~Wp2E; button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
Ge-CY 4wID]bKM 3.删除表格选定记录
5mJ JU int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
GNXHM*~ string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
6l5:1|8b,! 'MEz|Z 4.删除表格记录警告
U}6.h&$ private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
OTGofd2zf {
<KE 1f7c switch(e.Item.ItemType)
)~+E[| {
+=q$ x Ia case ListItemType.Item :
Xf02"PXC case ListItemType.AlternatingItem :
: >6F+XZ
case ListItemType.EditItem:
MHh~vy'HB5 TableCell myTableCell;
Wc,~ { myTableCell = e.Item.Cells[14];
w.H%R-Be LinkButton myDeleteButton ;
X9p.gXF myDeleteButton = (LinkButton)myTableCell.Controls[0];
9z}uc@#D=m myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
M)eO6oX| break;
B:gjAb}9T default:
/4a._@1h[y break;
(8Bk;bd }
19O,a#{KHf $^OvhnL/ }
=+U `-J}g ue4Vcf 5.点击表格行链接另一页
0J?~N`#O| private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
Y' %^NP}o {
G?EoPh^m //点击表格打开
Gnfd;.
(. if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
4US"hexE< e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
#0ETY\}ZD }
S{;sUGcu Pl=ZRKn 双击表格连接到另一页
R%Q@ b~'"^ Bts* 在itemDataBind事件中
V,q](bg if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
`S6x<J&T\/ {
BFL`!^ string OrderItemID =e.item.cells[1].Text;
JHz
[ 7 ...
pQshUm"_ e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
S`#w+C#EW }
-j73Wz G]+&!4 双击表格打开新一页
k`0>36 if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
A%`[mc]4# {
k\WR ] string OrderItemID =e.item.cells[1].Text;
1#.>a$> ...
Z @^9PQG$ e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
J3n-`k8 }
]}U*_rM: JsDpy{q ★特别注意:【?id=】 处不能为 【?id =】
W#KpPDgZE 6.表格超连接列传递参数
`Jzp Sw <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
@&X|5p"[g <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
-7S g62THS Ezr:1 GJ 7.表格点击改变颜色
/lo2y?CS* if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
4:|S` jm {
D@Vt^_ e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
>sK!F$ this.style.color=’buttontext’;this.style.cursor=’default’;");
f>W- }
tS|(K=$
fjU8gV 写在DataGrid的_ItemDataBound里
$lLz3YS if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
'R
c,Mq' {
lEhk'/~ e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
R $&o*K`? this.style.color=’buttontext’;this.style.cursor=’default’;");
K Pt5=a e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
byTh/ H }
Olh<,p+x /4g1zrU l y(>8F 8.关于日期格式
AS\F{ !O BaSZ71>9]r 日期格式设定
H`0|tepz DataFormatString="{0:yyyy-MM-dd}"
}UWL-TkEjF DV _2P$tT| 我觉得应该在itembound事件中
.u4
W / e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
ig/%zA*Bo .Yf:[`Q6g 9.获取错误信息并到指定页面
Z/t+8;TMR, Jh
]i]7r 不要使用Response.Redirect,而应该使用Server.Transfer
#)C[5?{SNq ||;hciO e.g
<$X3Hye // in global.asax
BZR:OtR^ protected void Application_Error(Object sender, EventArgs e) {
nPye,"A Ol if (Server.GetLastError() is HttpUnhandledException)
CitDm1DXt/ Server.Transfer("MyErrorPage.aspx");
_NMm/]mN / oZ!m //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
MOn }
8P1=[i] @ Wd9I;hWv Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
`[W[H(AjQ P*I}yPeb 10.清空Cookie
h"_MA_]~ Cookie.Expires=[DateTime];
dHv68*^\' Response.Cookies("UserName").Expires = 0
=~=*&I4Dp >[_f3;P 11.自定义异常处理
d4?Mi2/jF //自定义异常处理类
22.8PO0 using System;
Bs O+NP using System.Diagnostics;
wM2*# K%^V?NP*{Z namespace MyAppException
%O! v"Xh {
%`&2+\` /// <summary>
[uI|DUlI6o /// 从系统异常类ApplicationException继承的应用程序异常处理类。
Bh;7C@dq /// 自动将异常内容记录到Windows NT/2000的应用程序日志
@JyK|.b#0 /// </summary>
vSi.txV2 public class AppException:System.ApplicationException
5 N#3a0) {
)?X-(4 public AppException()
v
8$>rwB {
)i!o8YB if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
YbTxn="_ }
H;YP8MoQ i*#-I3 public AppException(string message)
Yy)tmq {
qI~xlW
LogEvent(message);
Tl2C^j }
@wE5S6! B\ (X?%^^e! public AppException(string message,Exception innerException)
0@H|n^Md# {
&NH$nY.r LogEvent(message);
NiU2@zgl if (innerException != null)
]%?YZn<{ {
G>1eFBh } LogEvent(innerException.Message);
1T-8K
r }
M#As0~y }
wPwXM! *=+td)S/1 //日志记录类
*# tJM.Z using System;
<8d^^0 using System.Configuration;
<N_+=_ using System.Diagnostics;
IE9XU9Kd using System.IO;
RPE5K:P using System.Text;
il:$sd using System.Threading;
a hR ^ A-T]9f9 namespace MyEventLog
2JJ"O|Ibz {
V3c l~ /// <summary>
Ahk8 /// 事件日志记录类,提供事件日志记录支持
C4~;y hz /// <remarks>
&?*V0luP) /// 定义了4个日志记录方法 (error, warning, info, trace)
%jJ>x3$F /// </remarks>
9hOJvQ2U] /// </summary>
fO0XA"= public class ApplicationLog
+eFFSt {
2@%$;. /// <summary>
<iH`rP# /// 将错误信息记录到Win2000/NT事件日志中
^OstR`U3 /// <param name="message">需要记录的文本信息</param>
2\7`/,U6 /// </summary>
:k.NbN$i\ public static void WriteError(String message)
ML(
Eo {
%2XHNW WriteLog(TraceLevel.Error, message);
z#]Jv!~EPE }
`<\1[HJ\ X&0 uI*r /// <summary>
RV5n,J /// 将警告信息记录到Win2000/NT事件日志中
2ioQb`= /// <param name="message">需要记录的文本信息</param>
\Dd-Xn_b /// </summary>
{
T-'t/0e( public static void WriteWarning(String message)
Gcig*5 {
~ ; -! n; WriteLog(TraceLevel.Warning, message);
N1|$$9G+ }
ZE2$I^DY- V??dYB( /// <summary>
u"d~!j1 /// 将提示信息记录到Win2000/NT事件日志中
AO=h
23ZI /// <param name="message">需要记录的文本信息</param>
*T~Ve;3h; /// </summary>
ub;ZtsM,% public static void WriteInfo(String message)
\>7^f
3m {
O }(VlR2 WriteLog(TraceLevel.Info, message);
UmQ?rS8d }
6bBB/yd /// <summary>
t=-SH^$SR /// 将跟踪信息记录到Win2000/NT事件日志中
|=$-Wu /// <param name="message">需要记录的文本信息</param>
+eX@U;J,g /// </summary>
qeL5D* public static void WriteTrace(String message)
V\^EfQ {
.R9IL-3fO WriteLog(TraceLevel.Verbose, message);
~fT_8z }
pb$~b\s]= WV #%PJ /// <summary>
v7DE /// 格式化记录到事件日志的文本信息格式
wyQzM6:,yX /// <param name="ex">需要格式化的异常对象</param>
OujCb^Rm /// <param name="catchInfo">异常信息标题字符串.</param>
'rr^2d]`ST /// <retvalue>
4*'pl.rb> /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
IaT$6\> /// </retvalue>
sfOHarww /// </summary>
6Qx#%,U^ J public static String FormatException(Exception ex, String catchInfo)
8'f4 Od ? {
IiZ&Pr StringBuilder strBuilder = new StringBuilder();
I+dbZBX if (catchInfo != String.Empty)
FKT1fv[H {
F$hYKT2| strBuilder.Append(catchInfo).Append("\r\n");
LWHd~"eU }
qHP78&wUx strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
^",ACWF4Sk return strBuilder.ToString();
|j VM&R2s }
T+<A`k: - `/~8}Y{ /// <summary>
&'DU0c& /// 实际事件日志写入方法
ngat0'oa /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
|'{zri|A" /// <param name="messageText">要记录的文本.</param>
aMvI?y { /// </summary>
7g(F#T?;' private static void WriteLog(TraceLevel level, String messageText)
bf!M#QOk? {
)JNSZB try
Ldl5zc {
y!!E\b= EventLogEntryType LogEntryType;
V`7FKL@" switch (level)
^pe{b9c {
R#DwF, case TraceLevel.Error:
5GPo*Qpl LogEntryType = EventLogEntryType.Error;
>$,y5 AJ& break;
hDp6YV,q case TraceLevel.Warning:
N~NQ6:R[ LogEntryType = EventLogEntryType.Warning;
=?s3iP break;
hQDTS>U case TraceLevel.Info:
r?*NhLG; LogEntryType = EventLogEntryType.Information;
[g Z"a* break;
l+g9 5mjP case TraceLevel.Verbose:
pTyi!:g3W LogEntryType = EventLogEntryType.SuccessAudit;
3Bx:Ntx< break;
3neIR@W default:
d GFGr}&s LogEntryType = EventLogEntryType.SuccessAudit;
KhW;RD break;
}GZ}Q5 }
t6A:ZmG_ 1s{^X
- EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
{nvLPUL //写入事件日志
~DsECnD eventLog.WriteEntry(messageText, LogEntryType);
V]vc(rH F`9ZH. }
=pk)3<GwF catch {} //忽略任何异常
<@Fy5k-%. }
't9hXzAfW } //class ApplicationLog
D.1J_Y=9 }
{!K-E9_,S eU N"w,@y 12.Panel 横向滚动,纵向自动扩展
C$@yG)Pj <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
3,Q^&
1 #zRbx 13.回车转换成Tab
sqS=qC <script language="javascript" for="document" event="onkeydown">
XxaGp95so if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
f~_th @K event.keyCode=9;
/2HN>{F^Y </script>
Cc, `}SP 7zv1wb onkeydown="if(event.keyCode==13) event.keyCode=9"
]+m/;&0 jOyvDY9\ 14.DataGrid超级连接列
j$TwL; DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
]d]JXt?)i UEzb^(8> 15.DataGrid行随鼠标变色
vUnRi=:| private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
!QT'L,_ {
2"d!(J6}K if (e.Item.ItemType!=ListItemType.Header)
u]ZqOJXxu {
wprX!)w<i e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
v
(2GX e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
DS%\SrC }
/De^
}
2AVa( ?^EXTU85`" 16.模板列
X K5<Tg <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
6Kj'ZyVL <ITEMTEMPLATE>
rX; Ys2vQ* <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
03iv3/{H </ITEMTEMPLATE>
Zxb_K </ASP:TEMPLATECOLUMN>
fI7j):h; 4
8{vE3JY <ASP:TEMPLATECOLUMN headertext="选中">
i9D0]3/> <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
v*qQ? S <ITEMTEMPLATE>
<uc1D/~^: <ASP:CHECKBOX id="chkExport" runat="server" />
2EK%N'H </ITEMTEMPLATE>
`W-&0|%Ta <EDITITEMTEMPLATE>
@YH+cG| <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
[*Z`Kc </EDITITEMTEMPLATE>
,=
&B28Qe) </ASP:TEMPLATECOLUMN>
IB`>'~s&A 7lo|dg80 后台代码
QERU5|.wc protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
F>X-w+b4r {
"sgjWo6 //改变列的选定,实现全选或全不选。
P/ oXDI8 CheckBox chkExport ;
rO:u6."_ if( CheckAll.Checked)
cf7v[ZZ} {
w?,M}=vg foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
KnNh9^4"\2 {
}rdIUlVO\ chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
c0Dmq)HK? chkExport.Checked = true;
kpI{KISQu }
P N*JR }
olW|$? else
6ITLGA {
*E~VKx1 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
/S\cU`ZVe {
RuG-{NF{F chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
+]@Az.E chkExport.Checked = false;
S',9g4(5 }
K"V:<a }
aRc ' }
\Yoa:|%*y sIl33kmv 17.数字格式化
|Cdvfk Kwhdu<6 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
{R^'=(YFy <%#Container.DataItem("price","{0:¥#,##0.00}")%>
o."rxd Sc]P<F7N] int i=123456;
2Nj9U#A string s=i.ToString("###,###.00");
[Lp,Hqi5 ^MmC$U^n 18.日期格式化
%Z8vdU# l M]-VHI[&W 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
dxj*Q "K j4R 4H; 显示为: 2004-8-11 19:44:28
L}j0a> =x4 \NqEw@91B 我只想要:2004-8-11 】
`E\imL <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
cW``M.d'F w#^U45y1v 应该如何改?
.!}hhiF,Z K"2|[ 5 【格式化日期】
Uw<&Wm`' x>~p;z#VX 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
>x[`;O4 w G8Wez% 【日期的验证表达式】
@S 6u9v D^Ys)- d A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
t!_x(u ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
@+_&Y] y)F!c29 B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
= c~I
. ^\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]))$
gNx+>h`AF uvA(Rn 【大小写转换】
PzY)"]g HttpUtility.HtmlEncode(string);
T!Sj<,r+j HttpUtility.HtmlDecode(string)
A.Bk/N1G Iwpbf Z 19.如何设定全局变量
Qeb}!k2A xiyxrR; Global.asax中
\O7J=6fn XV'fW~j\ Application_Start()事件中
yW.COWL=) L<(VG{)Z 添加Application[属性名] = xxx;
/9Ilo\MdD J`#`fX 就是你的全局变量
4B?!THjk #\bP7a+ 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
NfE.N&vI_c '9J|=z9. HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
Xev54!619 4%*hGh= 【ASPNETMENU】点击菜单项弹出新窗口
/!Z^Y tL0`Rvl 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
["3df>!f <?xml version="1.0" encoding="GB2312"?>
Poa?Ej <MenuData ImagesBaseURL="images/">
&C-;S a4 <MenuGroup>
Q1>zg,r <MenuItem Label="内参信息" URL="Infomation.aspx" >
<E':[.zC <MenuGroup ID="BBC">
_ ^7|!(Sz <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
_eLVBG35z <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
HBLWOQab ......
F?Or;p5`Y (OQ?<'Qa 最好将你的aspnetmenu升级到1.2版
sXl ??UGe 'nK~'PZ, 21.读取DataGrid控件TextBox值
&WZP2Q| foreach(DataGrid dgi in yourDataGrid.Items)
MY-.t-3 {
a%hGZCI TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
>Csbjf6 tb.Text....
^Y^"'" }
{@M14)-x>_ 9u wL{P& 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?
!v!N>f4S$ iUr xJh 〖思归〗
dDKqq(9(` <asp:TemplateColumn HeaderText="数量">
L)-*,$#<oW <ItemTemplate>
n_$yV:MuT! <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
um8AdiK onkeyup="javascript:DoCal()"
R9.HD?H@ />
~4
FDKUC ~uPk <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
]5|z3<K^ </ItemTemplate>
%OI4a5V*l </asp:TemplateColumn>
A|<; GYgWf1$8_D <asp:TemplateColumn HeaderText="单价">
PW_`qP: <ItemTemplate>
jXEGSn <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
&]nd!N
onkeyup="javascript:DoCal()"
Um
;kd />
KR3-Hb4 :'w?ye[e <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
r#xk`a ?^3B3qqh9 </ItemTemplate>
R!{7OkC </asp:TemplateColumn>
f]}}yBte` ' yNPhI <asp:TemplateColumn HeaderText="金额">
5fHYc0 <ItemTemplate>
.]Ybp2`"U <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
v#=ayWgk </ItemTemplate>
n0.8)=;2 </asp:TemplateColumn><script language="javascript">
rrQ0qg function DoCal()
X^in};&d {
e?)yb^7K var e = event.srcElement;
nhfwOS var row = e.parentNode.parentNode;
F7uhuqA]N var txts = row.all.tags("INPUT");
+)-d_K.(k if (!txts.length || txts.length < 3)
N^@
\tg= return;
II# /8p&Qf>lJ1 var q = txts[txts.length-3].value;
f-vK}'Z`, var p = txts[txts.length-2].value;
1PU*:58[ z\[(g if (isNaN(q) || isNaN(p))
`2x 34 return;
hZ#\t -]&<Sr- q = parseInt(q);
fjkT5LNxk p = parseFloat(p);
#J.u R+^z y"~ txts[txts.length-1].value = (q * p).toFixed(2);
@+0V& jc }
T` ;k!F46 </script>
X'2Gi JfKg_&hM jI#z/a!j: bD@@tGr;W Orc>.~+f%A 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。
"4[<]pq page_load
2$ VTu+ page.smartNavigation=true
Wy)('EM YnxU(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 ?
NhtEW0xCr private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
J_/05(48 {
>'0lw+a for(int i=0;i<e.Item.Cells.Count-1;i++)
g!`BXmW if(e.Item.ItemType==ListItemType.EditType)
Q}z{AZ {
0(vdkC4\A e.Item.Cells.Attributes.Add("Width", "80px")
X0x_+b?
_ }
I:/4t^% }
-CElk[u ZW2s[p r 26.对话框
oF&IC
j0 private static string ScriptBegin = "<script language=\"JavaScript\">";
Z`"n:'& private static string ScriptEnd = "</script>";
Rc%PZ}es fSC.+,qk public static void ConfirmMessageBox(string PageTarget,string Content)
`g8tq {
</hR!Sb] string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
%f#\i#G<k qqD0R*(C ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
mE_iS?1 agTK= Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
/^QFqM; ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
iXnx1w //Response.Write(strScript);
#?5VsD8 }
@YrGyq
573~-Jvx 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
j~$)c)h" 2E([#Pzb 1.1 取当前年月日时分秒
HqDa2q4 currentTime=System.DateTime.Now;
x[a'(5PwY 1Y2a*J 1.2 取当前年
M->Kz{h?j int 年= DateTime.Now.Year;
o7QK8# ^X(_zinN" 1.3 取当前月
!z.^(Tj int 月= DateTime.Now.Month;
xF^r` wISzT^RS
1.4 取当前日
}(rzH}X@ int 日= DateTime.Now.Day;
6%z`)d rOhA*_EG 1.5 取当前时
nO%<;-=u\ int 时= DateTime.Now.Hour;
aH9L|BN* l85CJ+rg 1.6 取当前分
.>oM
z&
int 分= DateTime.Now.Minute;
3?]S,~!F I@c0N*( 1.7 取当前秒
X[Y#+z4 int 秒= DateTime.Now.Second;
`ITDTZ
J Cb<~i 1.8 取当前毫秒
tl2Lq0 int 毫秒= DateTime.Now.Millisecond;
9`E-dr9 1URT2$2p 28.自定义分页代码:
SaTEZ. 7~ILRj5Nq 先定义变量 :
5M]6'X6I public static int pageCount; //总页面数
8*"rZh}' public static int curPageIndex=1; //当前页面
r$Kh3EEF`E rufRaar 下一页:
mURX I'JkX if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
OHQ3+WJ {
~'|&{-< DataGrid1.CurrentPageIndex += 1;
d?E4[7<t$1 curPageIndex+=1;
rHR5,N: }
/}[zA@ l'P[5'. bind(); // DataGrid1数据绑定函数
Y~<rQ WJP`0f3 上一页:
pvI&-D #} if(DataGrid1.CurrentPageIndex >0)
KF*B {
]IL3 $eR DataGrid1.CurrentPageIndex += 1;
"P9wT)J_ curPageIndex-=1;
xU:PhhS }
:s? y, ((n5';|N bind(); // DataGrid1数据绑定函数
; \Y- >2*6qx>V 直接页面跳转:
?m`R%>X" int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
g(M(Hn7
\q|e8k4p if(a<DataGrid1.PageCount)
p3i
qW,[@ {
;o&_:]S this.DataGrid1.CurrentPageIndex=a;
>f3k3XWRT }
-{.h\ REeD?u j bind();
^?JEyY \=TWYj_Ah 29.DataGrid使用:
)GQD*b z2$FYn Q 添加删除确认:
zkw0jX~ private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
tVK?VNW {
!hpTyO+% foreach(DataGridItem di in this.DataGrid1.Items)
*T1L)Cp {
9$}+-Z if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
u9da]*\7y {
c1=;W$T(s ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
a .B\=3xn }
PLlx~A }
#nt<j2}m }
<L[ *hp m|g$'vjk 样式交替:
~6pCOS} ListItemType itemType = e.Item.ItemType;
4p0IBfVG xX[{E x if (itemType == ListItemType.Item )
+K @J*W 1 {
E}E7VQjM e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
b3jU~L$ e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
}6b7a1p }
5[0l08'D else if( itemType == ListItemType.AlternatingItem)
`3H?*\<( {
,(5dQ` hA0 e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
as\)S?0`. e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
9'1;-^U1 }
4
g/<).1<b bDcWb2lqs 添加一个编号列:
JRcuw'8+q DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
Fb$5&~d DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
?.|wfBI :$u{ for(int i=0;i<dt.Rows.Count;i++)
'{1W)X {
;FIMCJS dt.Rows["number"]=(i+1).ToString();
FlM.D u }
Ynt&cdK9 a93d'ZE-X DataGrid1.DataSource=dt;
bE%mgaOh DataGrid1.DataBind();
X.W#=$;$: 0n =9TmE DataGrid1中添加一个CheckBox,页面中添加一个全选框
"J0Oa? private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
B_6v'=7] {
vf/$`IJ foreach(DataGridItem thisitem in DataGrid1.Items)
s}pGJ&C {
(h8hg+l
o ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
x Jj8njuq4 }
Vf\?^h(tP }
6H . L!tUI Jh/M}%@| 将当前页面中DataGrid1显示的数据全部删除
tS*^}e* foreach(DataGridItem thisitem in DataGrid1.Items)
cnjj)
c {
t8wz'[z if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
-;DE&~p {
"|~B};|MFF string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
K.sj"#D Del (strloginid); //删除函数
{
?1mY" }
CgPZvB[ }
5i
wikC=y cWy*K4O 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
:)3$&QdHT xX=IMM3 在Application_Start中添加以下代码:
Dk.9&9mz Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
lpX p)r+ AppSettings["ConnStr"].ToString();
'AlSq:gZ .w*{=x0k 31. 变量.ToString()
oW\7q{l2) ;zxlwdfcr' 字符型转换 转为字符串
E.G h@i 12345.ToString("n"); //生成 12,345.00
eG2qOq$[ 12345.ToString("C"); //生成 ¥12,345.00
5IB:4zx^h 12345.ToString("e"); //生成 1.234500e+004
, T%pGku 12345.ToString("f4"); //生成 12345.0000
`Mh<S+/ 12345.ToString("x"); //生成 3039 (16进制)
Wcay'#K, 12345.ToString("p"); //生成 1,234,500.00%
$dWl A<u (B~V:Yt 32、变量.Substring(参数1,参数2);
VHY<(4@ vGMOXbq4& 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
8b#Yd
Rcm(Y7 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
"Jv,QTIcS <SCRIPT language="javascript">
I!
eSJTN <!--
H:nu>pzt function gook(pws)
=B 4g EWR {
![MDmt5Ub^ frm.submit();
9gIJX? }
} C2i#;b //-->
ne%OTr4dD >c'_xa?^G </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
\~1zAiSd># <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
dXcMysRc%& <tr>
N<i Vs <td>
VRN9 yn2 <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
/dP8F <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
|LGNoP}SA <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
p2_Zsq 4~D>oNx4 <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
?jM7C} <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
<t|9`l_XW 4uE5h~0Z </td>
dvdBRrf DEeL48{R </tr>
xo"4mbTV 0b QiUcg/ </form>
06W=(fY K]]rOF 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
~ !+h"%'t QvQf@o 下面是获取用户输入的登陆信息的代码:
u5)A+.v string name;
y:`` |*+ name=Request.QueryString["EmailName"];
g!|E!\p !JQ~r@j try
;<GTtt#D {
_"t.1+-K int a=name.IndexOf("@",0,name.Length);
%TggNU, f_user.Value=name.Substring(0,a);
}oxaB9r f_domain.Value=name.Substring(a+1,name.Length-(a+1));
";Xbr;N f_pass.Value=Request.QueryString["Psw"];
gm8Tm$fY }
$.]t1e7s ,,j=RG_ catch
D/6@bcCSY {
m_U6"\n 5 Script.Alert("错误的邮箱!");
z=h5 Server.Transfer("index.aspx");
a} fS2He }