1. 打开新的窗口并传送参数:
~F^=7oq vC[)/w 传送参数:
7$WO@yOsh response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
TAlpy$ *DObtS_
6 接收参数:
#K'3`dpL string a = Request.QueryString("id");
y 562g`"U string b = Request.QueryString("id1");
T!eeMsI =\`g<0 2.为按钮添加对话框
E.Xfb"] Button1.Attributes.Add("onclick","return confirm(’确认?’)");
N_Cu%HP button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
1u75 )Yz`
6 3.删除表格选定记录
zI8Q "b int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
,,S5 8\x string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
[[P?T^KT _C~e(/=z 4.删除表格记录警告
%5 0}oD@ private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
J!O5`k*.C {
X+;Ivx switch(e.Item.ItemType)
x+l.04a@ {
~ ?m'; case ListItemType.Item :
qY`)W[ case ListItemType.AlternatingItem :
&F9BaJ case ListItemType.EditItem:
1s8 v E
f TableCell myTableCell;
R8P7JY[h myTableCell = e.Item.Cells[14];
)Y}t~ Zfx LinkButton myDeleteButton ;
B-ReBtN myDeleteButton = (LinkButton)myTableCell.Controls[0];
>Jt,TMMlt myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
YpoO: break;
>'wl)j$ default:
db$Th=s[ break;
J?Brnf. }
L0ig% ^_#0\f }
S-WD?BFC XWV) 5.点击表格行链接另一页
7tMV*{+Z private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
SkBa- *MC {
A\iDK10Q$ //点击表格打开
m5Q,RwJ!xK if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
0? ( e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
)(~4fA5j) }
?r0#{x~ akHcN]sa2 双击表格连接到另一页
w'z?1M(* ewg&DBbN" 在itemDataBind事件中
0ohpJh61Q if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
[>QV^2'Z {
Y,?s-AB string OrderItemID =e.item.cells[1].Text;
L&ySXc= ...
}UJS*mR e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
MO&QR-OY }
w~+5FSdH *`OgwMr)M 双击表格打开新一页
h
92\1, if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
*CZvi0& {
g^@Kx5O\ string OrderItemID =e.item.cells[1].Text;
RB.&,1 ...
jOj`S%7 e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
Jaz|b`KDj }
B?9K! c Q1J./C} ★特别注意:【?id=】 处不能为 【?id =】
{Ak{
ct\t 6.表格超连接列传递参数
eKi/Mt
<asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
rTYDa3 <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
w^Qb9vTa8 __r]@hY 7.表格点击改变颜色
_Qg^>}]A1 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
jjbBv~vs {
vKN"o* q e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
3&'ll51t this.style.color=’buttontext’;this.style.cursor=’default’;");
B2t.;uz(, }
Z_Jprp{3h g\;AU2?p7 写在DataGrid的_ItemDataBound里
R2WEPMH% if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
zJJ
KLr; {
=<w6yeko e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
w='1uV<6 this.style.color=’buttontext’;this.style.cursor=’default’;");
Sp$~)f' e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
#TZf\0\! }
IB:eyq-+ ''Fy]CwH( %Z~,F? 8.关于日期格式
'WK}T)o N<o3pX2i] 日期格式设定
W$LaXytmak DataFormatString="{0:yyyy-MM-dd}"
j~,7JJ
(y {o"X8 我觉得应该在itembound事件中
lxoc.KDtR e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
csE 9Ns <![tn#_ 9.获取错误信息并到指定页面
'W>Bz,M6yo Uf)?sz 不要使用Response.Redirect,而应该使用Server.Transfer
wP28IB:^ OJ8 ac6cJ e.g
xc dy/J& // in global.asax
>B(%$jG Z protected void Application_Error(Object sender, EventArgs e) {
q !\Ht2$b if (Server.GetLastError() is HttpUnhandledException)
?:l3O_U5 Server.Transfer("MyErrorPage.aspx");
hR,VE'A
o`S| //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
Z7RGOZQ}G }
yoa"21E$ }[ LME Z 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
v#*9rNEj0 H~%HTl 10.清空Cookie
<>/0;J1< Cookie.Expires=[DateTime];
D QO~<E6c Response.Cookies("UserName").Expires = 0
i? 5jl&30 MMg"G6? 11.自定义异常处理
K3*8JF7_F //自定义异常处理类
JU+Uzp using System;
*izPLM}+ using System.Diagnostics;
ucP}( $ !4-B
xeNY\ namespace MyAppException
19-|.9m( {
mh`~1aEr /// <summary>
'o=`1I /// 从系统异常类ApplicationException继承的应用程序异常处理类。
v`3q0,, /// 自动将异常内容记录到Windows NT/2000的应用程序日志
A41*4!L= /// </summary>
p12'^i | public class AppException:System.ApplicationException
I;iJa@HWQ {
=4`#OQ&g public AppException()
{n9]ej^
{
fp!Ba if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
Ny|2Fcs }
cU
<T;1VQ BeP]M1\?> public AppException(string message)
&K2J$(.t {
`s
HrC LogEvent(message);
u,AZMjlF }
d]Y-^&]{] N&g9z{m7 public AppException(string message,Exception innerException)
?EP>yCR9 {
0<f\bY02 LogEvent(message);
XBQ]A89G if (innerException != null)
Zz!0|-\ {
1 .\|,$ LogEvent(innerException.Message);
&w\E*$ }
FPj j1U`C }
I4]|r k9 g/H:`J //日志记录类
}{"a}zOl using System;
Brw-"tmx using System.Configuration;
,<iJ#$:
Sx using System.Diagnostics;
E?%SOU< using System.IO;
|eS5~0<` using System.Text;
W
vh3Y,|3 using System.Threading;
xj6ht/qq f#~X4@DH` namespace MyEventLog
paFiuQ {
6zuWG0t /// <summary>
AKWM7fI /// 事件日志记录类,提供事件日志记录支持
[k~V77w
14 /// <remarks>
:N!Fe7H, /// 定义了4个日志记录方法 (error, warning, info, trace)
j2GO ZKy /// </remarks>
8r"$o1! /// </summary>
&YMz3ugI public class ApplicationLog
5Fh?YS = {
O'tVZ!C#J /// <summary>
l :sZ /// 将错误信息记录到Win2000/NT事件日志中
3`y9V2&b /// <param name="message">需要记录的文本信息</param>
tK9_]663 /// </summary>
);4lM%]eb public static void WriteError(String message)
*#ccz {
o`B,Pt5vu WriteLog(TraceLevel.Error, message);
X\X*-.]{ }
8m? 9?OV5 oK cgP /// <summary>
S`,(10Y /// 将警告信息记录到Win2000/NT事件日志中
"`pI!nj /// <param name="message">需要记录的文本信息</param>
G$X+g{ /// </summary>
S*3N6*-l" public static void WriteWarning(String message)
f{ZOH<"Lo {
DP E NYr WriteLog(TraceLevel.Warning, message);
J*)Vpk }
\0&7^ 'FB?#C %U /// <summary>
2-G he3 /// 将提示信息记录到Win2000/NT事件日志中
Yh`P+L /// <param name="message">需要记录的文本信息</param>
]"'$i4I{R /// </summary>
DDdMWH^o7 public static void WriteInfo(String message)
~*-(_<FH {
8KqrB! WriteLog(TraceLevel.Info, message);
Z i-)PK^ }
bn`1JI@S4 /// <summary>
cID{X&or /// 将跟踪信息记录到Win2000/NT事件日志中
2qEm,x'S /// <param name="message">需要记录的文本信息</param>
w2BIf[~t /// </summary>
Xg>nb1e public static void WriteTrace(String message)
!Pnvqgp/ {
.h)o\6Wq WriteLog(TraceLevel.Verbose, message);
!acm@"Ea }
gg;&a( O 0Fw!IQk /// <summary>
`%
sKF /// 格式化记录到事件日志的文本信息格式
rCGyr}(NC /// <param name="ex">需要格式化的异常对象</param>
9|yn{4E /// <param name="catchInfo">异常信息标题字符串.</param>
7P}&<;5zD /// <retvalue>
&A=>x /// <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{cy|QD /// </retvalue>
_YVp$aKDR /// </summary>
ElNKCj<M public static String FormatException(Exception ex, String catchInfo)
]Lg$p {
]MjQr0&M StringBuilder strBuilder = new StringBuilder();
r+8%oWj if (catchInfo != String.Empty)
'~?\NeO= {
/A3tY"Vn strBuilder.Append(catchInfo).Append("\r\n");
N*.JQvbnr }
j6wdqa9!~ strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
NP%Y\%;l6 return strBuilder.ToString();
zUg-M }
D[)
Z$+D4f P]*,955*) /// <summary>
gC-3ghmgS /// 实际事件日志写入方法
9!hiCqA& /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
(8C
,"Dc[0 /// <param name="messageText">要记录的文本.</param>
X) lz BM /// </summary>
8r@_b private static void WriteLog(TraceLevel level, String messageText)
t!MGSB~ {
9pN},F91n: try
w i,}sEoM {
)l}Gwd]h EventLogEntryType LogEntryType;
e 5hq>K switch (level)
, VT& {
u~Zx9>f case TraceLevel.Error:
?LU]O\p LogEntryType = EventLogEntryType.Error;
9&R. <I break;
2"`R_q case TraceLevel.Warning:
w0n.Y-v4i LogEntryType = EventLogEntryType.Warning;
Zo}O,;(F5 break;
~Rx:X4|H case TraceLevel.Info:
C*A!`Q?1Y LogEntryType = EventLogEntryType.Information;
E/MD]ox break;
fi*@m,- case TraceLevel.Verbose:
y; LL^:rq LogEntryType = EventLogEntryType.SuccessAudit;
ttlFb]zZh break;
L;d(|7BVv default:
pSM\(kVKa LogEntryType = EventLogEntryType.SuccessAudit;
5>{S^i~! break;
9r,)Bw!RP }
IKT3T_\-I >OP[qj EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
rr/0pa$ //写入事件日志
{C6,h#|pg eventLog.WriteEntry(messageText, LogEntryType);
&z!yY^g
(* WO<V }
nksx|i l catch {} //忽略任何异常
N"A863> }
Bp
#:sAG } //class ApplicationLog
x<_uwL2a }
b^WTX kzq3-NTV 12.Panel 横向滚动,纵向自动扩展
d|T87K>|r" <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
fO6i IGKF&s*;{[ 13.回车转换成Tab
rVo0H.+N)` <script language="javascript" for="document" event="onkeydown">
AUZ^XiK if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
h B@M5Mc$ event.keyCode=9;
v#yeiE4 </script>
N@Fof(T& i7N|p9O. onkeydown="if(event.keyCode==13) event.keyCode=9"
v/NkG;NWM 2y"]rUS` 14.DataGrid超级连接列
&-l(nr]h] DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
m-%.LDqM J['pBlEb\ 15.DataGrid行随鼠标变色
y2nwDw(xF private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
F^La\cZ*' {
o5k7$0:t/ if (e.Item.ItemType!=ListItemType.Header)
=8Bq2.nlR {
?4G/f<ou e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
HN7C+e4U~ e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
s48 { R4 }
H Pvs~`>V }
Vifh`BSP YfB8
16.模板列
aaa6R|>0 <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
5
5$J%;& <ITEMTEMPLATE>
Pl2ZA)[g <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
Zt3Y<3o </ITEMTEMPLATE>
@nPXu2c?u7 </ASP:TEMPLATECOLUMN>
8ux?K5_ $0(~ID <ASP:TEMPLATECOLUMN headertext="选中">
.=I:cniw\r <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
y9/x:n&] <ITEMTEMPLATE>
oQsls9t <ASP:CHECKBOX id="chkExport" runat="server" />
Hi V7 </ITEMTEMPLATE>
"$@Wy,yp <EDITITEMTEMPLATE>
zQPQP` <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
JZc"4qf@OT </EDITITEMTEMPLATE>
,m"0Bu2 </ASP:TEMPLATECOLUMN>
Y2Z<A(W q!r4"#Y"@Z 后台代码
CVa?L"lK protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
?WD JWp% {
E:!qncL: //改变列的选定,实现全选或全不选。
ggP#2I\ CheckBox chkExport ;
liU/O:Ap if( CheckAll.Checked)
[H-r0Ah {
]&oQ6 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
@U)k~z2Hk {
,o?yS>L_r chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
EKr#i}(x< chkExport.Checked = true;
K1*oYH B }
xllk hD4F }
B#Q=Fo 6 else
et-<ib<lY {
MhaoD5*9 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
dI$U{;t {
qhIO7h chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
Q,AM<\S chkExport.Checked = false;
df'xx)kW }
Bkq3-rX\ }
7y/Pch }
I7Uj<a=(q @/DHfs 4O 17.数字格式化
Q*GJREC r/ G6O 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
|K7zN\
Wq <%#Container.DataItem("price","{0:¥#,##0.00}")%>
@An "ClDa
<dd(i int i=123456;
Q^Lk^PP7 string s=i.ToString("###,###.00");
HHZGu8tzt 83|7#L 18.日期格式化
4/Wqeq,E8 L'KgB=5K&i 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
?)2&LVrf kv)IG$S0 显示为: 2004-8-11 19:44:28
en1NFP ar!`8" 我只想要:2004-8-11 】
/HiRbwQK# <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
<hvVh9 %YhM?jMW 应该如何改?
hM/:zC: B0&W wa: 【格式化日期】
KK|AXoBf n$})}kj 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
=Ll:Ba Q "F.0(<4) 【日期的验证表达式】
1(;_1@P gTby%6-\| A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
j1sZRl)D ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
;n"Nv}<C ;%/Kh :Vg B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
Q^_*&},V ^\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]))$
th 9I]g^=t z;F6:aBa 【大小写转换】
k|-P&g HttpUtility.HtmlEncode(string);
6[{|' HttpUtility.HtmlDecode(string)
UmC_C[/n?
FK2* O 19.如何设定全局变量
ZWVN(U a#_=c>h; Global.asax中
r*gQGvc S{sJX5R; Application_Start()事件中
&.ENcEic 2L!wbeTb; 添加Application[属性名] = xxx;
&/}reE* w}`TJijl 就是你的全局变量
MzWVsV <EHgPlQn 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
j-% vLL/ VPAi[<FzOG HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
:MIJfr>z YaWZOuxm 【ASPNETMENU】点击菜单项弹出新窗口
Q=+*OQV29 1F*3K3T { 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
7
B< <?xml version="1.0" encoding="GB2312"?>
)fRZ}7k: <MenuData ImagesBaseURL="images/">
-F+
)N$CW <MenuGroup>
_3_kvs <MenuItem Label="内参信息" URL="Infomation.aspx" >
Uh9p,AV <MenuGroup ID="BBC">
KO ~_ <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
|lnMT)^D <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
L93PDp4v ......
PU"C('AP VD,p<u{r 最好将你的aspnetmenu升级到1.2版
[#}0) |v'_Co0ki 21.读取DataGrid控件TextBox值
49gm=XPm foreach(DataGrid dgi in yourDataGrid.Items)
8~~*/oCoJt {
T=NF5kj-= TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
\fk%^1XY tb.Text....
6G^x%s }
^~iFG+g5 sghQ!ux 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
i$[wkQ>$ 'UW(0 PXw 〖思归〗
hI^Hqv <asp:TemplateColumn HeaderText="数量">
lVw77bZ <ItemTemplate>
h^)R}jy+f <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
E6=JL$" onkeyup="javascript:DoCal()"
+bGj(T%+' />
0# )I:5
[b=l'e/ <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
?bq S{KF </ItemTemplate>
>E9:3&[F </asp:TemplateColumn>
>R9_; $wQkTx <asp:TemplateColumn HeaderText="单价">
X:un4B}O <ItemTemplate>
HkP')= sa <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
#lf3$Tm D onkeyup="javascript:DoCal()"
>BDK?YMx />
|9Gng`) B5nzkJV<X <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
w`N|e0G@ D)]U+Qk </ItemTemplate>
Q?Y\WD </asp:TemplateColumn>
L,m'/}$ zE~{}\J <asp:TemplateColumn HeaderText="金额">
R.Plfm06Ue <ItemTemplate>
WeqE9@V <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
THQd`Lj </ItemTemplate>
<;O-N= </asp:TemplateColumn><script language="javascript">
WT-BHB1 function DoCal()
ir72fSe {
Mdj?;'Yv var e = event.srcElement;
"&_$%#HUv var row = e.parentNode.parentNode;
xD:t$~ var txts = row.all.tags("INPUT");
]ZkR~? if (!txts.length || txts.length < 3)
3y[uH' return;
sULCYiT|Hn f>*D@TrU var q = txts[txts.length-3].value;
CJDnHuozc var p = txts[txts.length-2].value;
hPb erc2 &gP/<!# if (isNaN(q) || isNaN(p))
Xscm>.di return;
<wIz8V t#fbagTON q = parseInt(q);
j,]KidDWm p = parseFloat(p);
I3ZlKI bv NXA*0 txts[txts.length-1].value = (q * p).toFixed(2);
\!+#9sq0 }
;fdROI </script>
dGNg[ a/k0( )1EF7.| 3ih3O rz@FUU:& 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。
)jS9p~FS
page_load
O/?Lk*r page.smartNavigation=true
&=KNKE` SZ;Is,VgU4 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 ?
]]EOCGZ" private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
bzl-|+!yB {
z-J?x-< for(int i=0;i<e.Item.Cells.Count-1;i++)
'l&),]|$) if(e.Item.ItemType==ListItemType.EditType)
ib-)T7V` {
^#V7\;v$G e.Item.Cells.Attributes.Add("Width", "80px")
"B$r{ vG }
[myIcLp^aP }
Ai~j
q M9t`w-@_w 26.对话框
lCX*Q{s22 private static string ScriptBegin = "<script language=\"JavaScript\">";
HW@r1[Y private static string ScriptEnd = "</script>";
5Nt40)E}sN ;b-d2R public static void ConfirmMessageBox(string PageTarget,string Content)
mZ[tB/ {
}Qqi013E L string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
\i2S'AblYq FxkxV GZ" ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
>l$qE mF6 U{= Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
H2cY}, ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
Hy*_4r //Response.Write(strScript);
4e0/Q!o, }
^wtr~D| ;ATn& 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
(H_YYZ3ZX @ uF$m/g 1.1 取当前年月日时分秒
)[Bl3+' currentTime=System.DateTime.Now;
PlX6,3F p
bT sn 1.2 取当前年
s (hJ * int 年= DateTime.Now.Year;
,~TV/l< Vt[Kr 1.3 取当前月
/&eF,4 int 月= DateTime.Now.Month;
G(*7hs "A>/m"c]* 1.4 取当前日
z+=wql*Eo int 日= DateTime.Now.Day;
>X$I:M<L kuZs30^ 1.5 取当前时
u~-,kF@ int 时= DateTime.Now.Hour;
WS7a]~3' $yi[wwf4 1.6 取当前分
03$lg DQ int 分= DateTime.Now.Minute;
?%]?#4bkc `+c8;p'q 1.7 取当前秒
>(9"D8 int 秒= DateTime.Now.Second;
vp_$Ft-R H+O^e l 1.8 取当前毫秒
x392uS$# int 毫秒= DateTime.Now.Millisecond;
h88IP:bo Nm;V9*5 28.自定义分页代码:
@&4s)&-F ;V:Cf/@@R 先定义变量 :
h]w5N2$}? public static int pageCount; //总页面数
NA<6s]Cs. public static int curPageIndex=1; //当前页面
'C")X ~=#jr0IZ 下一页:
yrgb6)]nm@ if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
Rc.8j,] {
=I6u*$9< DataGrid1.CurrentPageIndex += 1;
E{#Y= curPageIndex+=1;
a=%QckR* }
km[PbC
;A3aUN;"I bind(); // DataGrid1数据绑定函数
$At,D.mGkb |TE\ ] 上一页:
rf:CB&u if(DataGrid1.CurrentPageIndex >0)
noLb {
OQC.p,SO DataGrid1.CurrentPageIndex += 1;
Hrdz1:#6, curPageIndex-=1;
t&^cYPRfY' }
\@eC^D2 A>OGU ^ bind(); // DataGrid1数据绑定函数
w-3 B~e |AS`MsbI9 直接页面跳转:
tc%0yr9 int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
G1`H
H& Dn9AOi! if(a<DataGrid1.PageCount)
Ac@zTK6> {
(9X>E+0E this.DataGrid1.CurrentPageIndex=a;
~H+W[r} }
rdY/QvP0= {k#RWDespy bind();
5uJ{#Zd G'\x9% 29.DataGrid使用:
0
3/<A ^ (wtw1E5X 添加删除确认:
7Hm/g private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
N!hS`< } {
#VA8a=t foreach(DataGridItem di in this.DataGrid1.Items)
w' gKE'c {
-Jj"JN. if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
HcKZmL.wp {
y,OwO4+y\ ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
+ mqz)-x }
xr<.r4 }
nGdEJ }
|k-IY]6
, 7kS#`P 样式交替:
YV 5kzq ListItemType itemType = e.Item.ItemType;
!_|rVg. 1~x=bphS if (itemType == ListItemType.Item )
V L&5TZtz {
2'8$I}h e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
|4XR [eX e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
OGjeE4 }
$7 08\! else if( itemType == ListItemType.AlternatingItem)
\~YyY'J {
).Ei:/*j e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
I'NE>!=Q e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
~D9VjXfL) }
LT5rLdn l*yh(3~} 添加一个编号列:
H3?HQ>&O7 DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
EK:s# DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
;AwQpq>dy ``:AF: for(int i=0;i<dt.Rows.Count;i++)
2[*r9%W {
;8G( l dt.Rows["number"]=(i+1).ToString();
#]@<YKoV{ }
t!g9,xG<X 9J$8=UuxWG DataGrid1.DataSource=dt;
'|\et aD DataGrid1.DataBind();
*$KUnd-T nA\9UD<G. DataGrid1中添加一个CheckBox,页面中添加一个全选框
iuX82z` private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
% 1+\N {
iZVMDJ?(Z] foreach(DataGridItem thisitem in DataGrid1.Items)
Au6*hv3: {
r*'X ]q|L+ ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
^vPt Ppt }
sh6F-g }
~)zoIM \ b Hr2LhQCN 将当前页面中DataGrid1显示的数据全部删除
Y]5\%JR foreach(DataGridItem thisitem in DataGrid1.Items)
6!,Am^uXM {
K$H>/*&'~ if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
`J>76WN {
"rj qDpH string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
vu%:0p`K Del (strloginid); //删除函数
}@*Me+ }
`>1"v9eF }
0 gyg Q}J'S5% 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
4DVkycM *aXZONym 在Application_Start中添加以下代码:
b[^=GF>e Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
yn0OPjH AppSettings["ConnStr"].ToString();
W |]24 6
1=?(Iw 31. 变量.ToString()
sOJH$G3O |\
1?CYx 字符型转换 转为字符串
,KlTitJl\+ 12345.ToString("n"); //生成 12,345.00
B/i` 12345.ToString("C"); //生成 ¥12,345.00
D!.
r$i) 12345.ToString("e"); //生成 1.234500e+004
];waK2'2 12345.ToString("f4"); //生成 12345.0000
aW8Bx\q 12345.ToString("x"); //生成 3039 (16进制)
sW~Z?PFP 12345.ToString("p"); //生成 1,234,500.00%
+e0]Y8J{ +w-UK[p 32、变量.Substring(参数1,参数2);
8c m,G qy`95^ 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
x@F"ZiYD@O \o^M ,yI 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
TxhTK5#f <SCRIPT language="javascript">
XelY?Ph,, <!--
krTH<- P function gook(pws)
WV5gH*uUa {
@WX]K0$; frm.submit();
R1z\b~@" }
K1Tq7/N //-->
;l_%;O5 ?op6_a-wm </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
. `lcxC <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
qoBm!|q <tr>
w$H=GF?" <td>
cO2
.gQo' <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
tvptawA. <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
>2gemTy <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
NYD#I{h m,3?*0BMp= <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
ZD1UMB0$4 <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
/sENoQR ^3QHB1I </td>
9)sGnD; hq/k}Y </tr>
vBd^=O 4YkH;!M>ji </form>
CD(2A,u)/ A'qJke= 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。
$%VFk 53I pYJv|`+ 下面是获取用户输入的登陆信息的代码:
:|oH11y string name;
Q"CZ}B1< name=Request.QueryString["EmailName"];
7Xv.C&jzd z6bTcs"7h try
q@P5c {
,U2
/J int a=name.IndexOf("@",0,name.Length);
IuTZ2~ f_user.Value=name.Substring(0,a);
BCF-lrZ& f_domain.Value=name.Substring(a+1,name.Length-(a+1));
?<,9X06dP f_pass.Value=Request.QueryString["Psw"];
JP9eNc[ }
UNq!| TPp%II'* catch
YY]JjMkU {
NFPW#-TF Script.Alert("错误的邮箱!");
AV AF!Z Server.Transfer("index.aspx");
QvK/31*QG }