1. 打开新的窗口并传送参数:
MC
8t"SB 4$5d*7 传送参数:
/mi9q response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
+*I'!)T^B "wPA;4VQ 接收参数:
eT(/D/jan string a = Request.QueryString("id");
FW~{io]n string b = Request.QueryString("id1");
|b
BA0.yS [lU0TDq 2.为按钮添加对话框
}NH\Q$ IU Button1.Attributes.Add("onclick","return confirm(’确认?’)");
I.4o9Z[? button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
b I%Sq+"} aEO`` W 3.删除表格选定记录
CMcS4X9/} int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
[!g$|
string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
z:
;ZPSn Z(|@C(IL0\ 4.删除表格记录警告
-a[[1 private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
m'!smSx8 {
|9fvj6?Y switch(e.Item.ItemType)
x|7vN E=Q {
n?UFFi+a case ListItemType.Item :
7EfLd+ case ListItemType.AlternatingItem :
#mK/xbW case ListItemType.EditItem:
lc:dKGF6 TableCell myTableCell;
>V01%fLd myTableCell = e.Item.Cells[14];
5qe6/E@ LinkButton myDeleteButton ;
@W_=Z0] myDeleteButton = (LinkButton)myTableCell.Controls[0];
L~Hl?bK myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
"X[sW%# F break;
@nh*H{ default:
u|G&CV#r break;
#"T< mM7 }
rfz\DvVd nEG+TRZ)\ }
rnkq. Vgj&hdbd 5.点击表格行链接另一页
1xBg^ private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
ZH1W#dt`[ {
$-=QT X //点击表格打开
f%g^6[ if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
,A{'lu e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
Bd8{25{c }
|riP*b 3IlflXb 双击表格连接到另一页
.{=|N8*py8 qH8d3?1XO 在itemDataBind事件中
2#XYR>[ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
cu@i;Hb@ {
4Y>J,c string OrderItemID =e.item.cells[1].Text;
C4].egVg ...
MS=zG53y e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
xMpQPTte }
T,
z80m} 3=
q,k<=L 双击表格打开新一页
q!O B?03n if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
Q ,`R-?v {
p$:ERI string OrderItemID =e.item.cells[1].Text;
>QcIrq%= ...
v0 3 e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
G9|w o)N }
$*k9e ^{S
W>HGB ★特别注意:【?id=】 处不能为 【?id =】
*}@zxFe+ 6.表格超连接列传递参数
Hd8 O3_5 <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
U?[_ d <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
jfOqE*frl! PL}c1Ud 7.表格点击改变颜色
wJr5[p*M if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
q; n {
+%'!+r
l e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
^DQp9$la this.style.color=’buttontext’;this.style.cursor=’default’;");
dsiQ~ [
}
pVa9g)+z} DDwj[' R 写在DataGrid的_ItemDataBound里
`alQmGUZ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
"B34+fOur {
q-lejVS(g e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
#86=[*Dr this.style.color=’buttontext’;this.style.cursor=’default’;");
{: H&2iF e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
h@H8oZ[ }
s-[v[w'E ~TvKMW6/# ;&2f { 8.关于日期格式
hUo}n>Aa )/{zTg8$?/ 日期格式设定
>[A7oH DataFormatString="{0:yyyy-MM-dd}"
6oA2"!u^w =mQdM]A)2 我觉得应该在itembound事件中
uA]!y{"}J
e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
O`rKxP j YVR"D; 9.获取错误信息并到指定页面
5IJm_oy H-g
CY|W 不要使用Response.Redirect,而应该使用Server.Transfer
z=[?&X]O9b 5?=haGn e.g
tSf$`4 // in global.asax
4F=cER6l protected void Application_Error(Object sender, EventArgs e) {
921m'WE if (Server.GetLastError() is HttpUnhandledException)
02RZ>m+ Server.Transfer("MyErrorPage.aspx");
KM:k<pvi n8RE //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
_B6W:k|-7l }
0Uf.aP +!JTEKHKH 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
\\d!z-NOk? \&jmSa=]l 10.清空Cookie
Py^fWQ5I~% Cookie.Expires=[DateTime];
tMDJ,rT Response.Cookies("UserName").Expires = 0
D~T;z pS &WV&_z 11.自定义异常处理
S"Z.M _ //自定义异常处理类
g=)OcTd# using System;
;QS(`SK l using System.Diagnostics;
U'oFW@Y;h 1{Kv namespace MyAppException
BTAt9Z8qK {
z?M_Cz;:J /// <summary>
`"s*'P398 /// 从系统异常类ApplicationException继承的应用程序异常处理类。
G5!J9@Yi /// 自动将异常内容记录到Windows NT/2000的应用程序日志
$Le|4Hj /// </summary>
sBq6,Iu public class AppException:System.ApplicationException
Bbj%RF2, {
c_ Dg0 public AppException()
IZSJ+KO {
AA &>6JB{ if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
uN*Ynf(:- }
YW7Pimks x"83[0ib public AppException(string message)
m/bP`-/, {
=~P)7D6 LogEvent(message);
m4_ZGjmJM }
Q^ }Ib[ g5@P public AppException(string message,Exception innerException)
iyJx~: {
`3?5Z/,y LogEvent(message);
J>dIEW%u if (innerException != null)
$,
vXyZ {
}l<:^lX LogEvent(innerException.Message);
*o}7&Hw#9f }
,TlYQ/j%h }
aQHB SSn{,H8/j //日志记录类
4'#?"I using System;
S.R|Bwj}(Y using System.Configuration;
P<C=9@`! using System.Diagnostics;
qtlcY8! using System.IO;
Csf!I@}Z using System.Text;
=Q~@dP using System.Threading;
m"f3hd4D_q :-tMH02c namespace MyEventLog
`DS7J\c$ {
1"S~#
/// <summary>
-LU%z' /// 事件日志记录类,提供事件日志记录支持
BF/l#)$yK /// <remarks>
7-VP)|L#G /// 定义了4个日志记录方法 (error, warning, info, trace)
_^@ >I8ix /// </remarks>
C$4!|Wg3 /// </summary>
]XjL""EbC public class ApplicationLog
~v6]6+ {
'1"vwXJ" /// <summary>
dZ|x `bIgs /// 将错误信息记录到Win2000/NT事件日志中
!,9;AMO
- /// <param name="message">需要记录的文本信息</param>
#c$z&J7e /// </summary>
+'9E4Lpx public static void WriteError(String message)
1O2jvt7M {
O"~CZh,:r} WriteLog(TraceLevel.Error, message);
v2Vmcc_]9x }
_sK{qQxvM= V`m9+<.1 b /// <summary>
h9kwyhd" /// 将警告信息记录到Win2000/NT事件日志中
0]xp"xOwW /// <param name="message">需要记录的文本信息</param>
3c+ps;nh /// </summary>
w >w zV=R public static void WriteWarning(String message)
H>F j {
~EM(*k._ WriteLog(TraceLevel.Warning, message);
}=p+X:k= }
\k3EFSm 7O,!67+^~ /// <summary>
Hm'aD2k /// 将提示信息记录到Win2000/NT事件日志中
?N=`}}Ky- /// <param name="message">需要记录的文本信息</param>
dy]ZS<Hz8G /// </summary>
elz0t<V public static void WriteInfo(String message)
O>d
[;Q {
5'/ff= WriteLog(TraceLevel.Info, message);
Y=D\ }
L&0aS: /// <summary>
"R]wPF5u /// 将跟踪信息记录到Win2000/NT事件日志中
nd }Z[) /// <param name="message">需要记录的文本信息</param>
G7%f|
Y /// </summary>
$|t={s34 public static void WriteTrace(String message)
@H$Sv {
Of>2 m< WriteLog(TraceLevel.Verbose, message);
ART0o7B }
C!U$<_I\2 wz>[CXpi_ /// <summary>
06z+xxCo /// 格式化记录到事件日志的文本信息格式
]CDUHz /// <param name="ex">需要格式化的异常对象</param>
z"-oD*ICw /// <param name="catchInfo">异常信息标题字符串.</param>
)Em`kle /// <retvalue>
" c+$GS /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
M(vX.kF /// </retvalue>
EiVVVmm! /// </summary>
$'<FPbUtD} public static String FormatException(Exception ex, String catchInfo)
:!JQ<kV {
qRHT~ta-? StringBuilder strBuilder = new StringBuilder();
ueEf>0 if (catchInfo != String.Empty)
_9'hmej {
Pn l}<i strBuilder.Append(catchInfo).Append("\r\n");
Yl=-j }
FKUo^F?z strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
@9~x@[ return strBuilder.ToString();
_bt9{@) }
Mh
MXn;VKj \VWgF)_ /// <summary>
%/
"yt}"| /// 实际事件日志写入方法
Q\>mg*79 /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
;*0nPhBw0> /// <param name="messageText">要记录的文本.</param>
iH~A7e62OZ /// </summary>
GWLdz0`2_ private static void WriteLog(TraceLevel level, String messageText)
DF
UTQ:N {
@$iZ9x6t try
w|Ry)[ {
.PV(MV EventLogEntryType LogEntryType;
u%lUi2P2E switch (level)
Z}{]/=h {
vK`HgRQ(C case TraceLevel.Error:
*Ms&WYN- LogEntryType = EventLogEntryType.Error;
yL),G*[p\} break;
"$D'gSoYe case TraceLevel.Warning:
jo3(\Bq LogEntryType = EventLogEntryType.Warning;
%hlgLM break;
62MQ+H case TraceLevel.Info:
,SNt*t1" LogEntryType = EventLogEntryType.Information;
v+}${h9 break;
R.DUfU"gp case TraceLevel.Verbose:
8I Ip,#%v LogEntryType = EventLogEntryType.SuccessAudit;
g*`xEb=' break;
i=1crJ: default:
'Ebjn>" LogEntryType = EventLogEntryType.SuccessAudit;
9gglyoZ% break;
tCm]1ZgRW }
y0ObcP.MA <1B+@ EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
QPh3(K1w^ //写入事件日志
qj `C6_? eventLog.WriteEntry(messageText, LogEntryType);
*A4eYHn@ AJE$Z0{q }
jVZ<i}h0B catch {} //忽略任何异常
@rAV;D% }
]T)<@bmL } //class ApplicationLog
5pC}ZgEa< }
Z[ &d2' ^\kH^ 12.Panel 横向滚动,纵向自动扩展
9_,f)2)~W <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
T,jb%uPcE 6GPI
gPL, 13.回车转换成Tab
iK+Vla`} <script language="javascript" for="document" event="onkeydown">
0xO*8aKT if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
V"'PA-z3 event.keyCode=9;
:>r
W`=
e' </script>
-%gEND-AP 'TuaP`]< onkeydown="if(event.keyCode==13) event.keyCode=9"
iRlpNsN ^Il*`&+?P 14.DataGrid超级连接列
awvP;F?q| DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
2H0BNrYM ,|}mo+rb- 15.DataGrid行随鼠标变色
+4Pes private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
NdSuOkwwt {
W3d+t?28 if (e.Item.ItemType!=ListItemType.Header)
5V\",PAW {
kd\Hj~* e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
>`SeX: e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
2<y9xvp }
OG$v"Yf~ }
M?L$xE_& hV0fkQ.| 16.模板列
^3S&LC
1;| <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
"y&`,s5} <ITEMTEMPLATE>
M@<9/xPS <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
f7][#EL </ITEMTEMPLATE>
2 \}J*0 </ASP:TEMPLATECOLUMN>
uOJqj{k_." ' h<( <ASP:TEMPLATECOLUMN headertext="选中">
R3l{.{3p2 <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
Bf;_~1+vLG <ITEMTEMPLATE>
!|i #g$ <ASP:CHECKBOX id="chkExport" runat="server" />
dt,Z^z+"E </ITEMTEMPLATE>
uf9&o# <EDITITEMTEMPLATE>
_8
|X820 <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
RR
^7/- </EDITITEMTEMPLATE>
h_S>Q </ASP:TEMPLATECOLUMN>
:S_]!'H VZI!rFac 后台代码
{vCtp protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
matna {
$HsNV6 //改变列的选定,实现全选或全不选。
RK &>!^ CheckBox chkExport ;
BLO ]78
if( CheckAll.Checked)
^N|8
B?Vg {
o!KDeY foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
, >S7c {
W_JO~P chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
wN4#j}C chkExport.Checked = true;
\rzMgR$/rj }
=
a60Xv }
,r;xH}tbi else
h )5S4) {
+jwHYfAK) foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
!=,Y=5M, {
L}Y.xi chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
LrbD%2U$j5 chkExport.Checked = false;
p\ ;|Z+0= }
xi(\=LbhY }
3S7"P$q }
($[+dR I"vkfi#= 17.数字格式化
0~^RHb.NA8 Tgr,1)T 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
={zTQ+7S` <%#Container.DataItem("price","{0:¥#,##0.00}")%>
zZ8 *a\ WXY'%G int i=123456;
>- \bLr string s=i.ToString("###,###.00");
znwKwc8, ZDW=>}~_y 18.日期格式化
za@/4z }ARA K ^% 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
~EPVu 2]]v|Z2M4 显示为: 2004-8-11 19:44:28
daI_@k Y" CC`_e^~y=F 我只想要:2004-8-11 】
YiDO V) <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
?Z7QD8N
Oti*"dV\:: 应该如何改?
_b~{/[s Q7$o&N{ 【格式化日期】
Wjw,LwB Ptv'.<- 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
1^}I?PbqV 7PX`kI 【日期的验证表达式】
k6;bUOo Z)#UCoK!c A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
9_?xAJ ^((\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})))?$
L>h8>JvQ eMJ>gXA] B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
GBbnR:hM ^\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]))$
`.W2t5Y "s(~k 【大小写转换】
,|({[9jA HttpUtility.HtmlEncode(string);
\xkKgI/ HttpUtility.HtmlDecode(string)
TJO$r6& |1~n<=`Z 19.如何设定全局变量
~P1~:AT N7+L@CC6T Global.asax中
bP&QFc 'BjTo*TB]Z Application_Start()事件中
?BnU0R_r] J,2V&WuV0r 添加Application[属性名] = xxx;
lT^su'+bk "]+g5G 就是你的全局变量
YA4 D?' ]dpL
PR 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
WTJ 0Q0U t<!;shH,s HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
YX0ysE*V:& f2i:I1 p(" 【ASPNETMENU】点击菜单项弹出新窗口
HeRi67 2*|T)OA`m, 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
kJWg},-\ <?xml version="1.0" encoding="GB2312"?>
Iux3f+H <MenuData ImagesBaseURL="images/">
^,>w`8 <MenuGroup>
r7m~.M+W" <MenuItem Label="内参信息" URL="Infomation.aspx" >
'a['lF <MenuGroup ID="BBC">
/T w{JO#Q <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
)/T[Cnx.Nc <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
6>a6;[ ......
9P?0D qb>41j9_t 最好将你的aspnetmenu升级到1.2版
h.jJAVPi ;w7 mr1 21.读取DataGrid控件TextBox值
C0wtMD:G foreach(DataGrid dgi in yourDataGrid.Items)
q&3
;e4 {
u^"
I3u8$ TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
~||0lj.D tb.Text....
YV
O$`W^N }
_fHC+lwN D}_.D=) 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
`q^#u p['RV 〖思归〗
"o5]:]h) <asp:TemplateColumn HeaderText="数量">
U\KMeaF5e- <ItemTemplate>
XUqorE <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
Pq;OShU_ onkeyup="javascript:DoCal()"
Ar`+x5
/>
De?VZ2o9" &."$kfA+ <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
@!sK@&ow@% </ItemTemplate>
17LhgZs& </asp:TemplateColumn>
6 d-\+t8 *_(X$qfoW <asp:TemplateColumn HeaderText="单价">
x/*lNG/ <ItemTemplate>
w'S,{GW <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
3_(_yEKx onkeyup="javascript:DoCal()"
NXW*{b />
I'/3_AX W__ArV2Z_ <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
;Shu lSxb:$g </ItemTemplate>
HI.*xkBXl& </asp:TemplateColumn>
5^B79A"} akj<*, <asp:TemplateColumn HeaderText="金额">
GEBSUvM 7 <ItemTemplate>
=rjU=3!&( <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
VD;*UkapZx </ItemTemplate>
{{G)Ry*pb </asp:TemplateColumn><script language="javascript">
u` pTFy function DoCal()
){^J8]b7# {
HIg2y var e = event.srcElement;
-+R,="nRQ var row = e.parentNode.parentNode;
NR4+&d var txts = row.all.tags("INPUT");
/bo}I-<2 if (!txts.length || txts.length < 3)
,}oAc return;
PX:#+bq1 k<gH*=uXY' var q = txts[txts.length-3].value;
Rh>B#
\ var p = txts[txts.length-2].value;
]Q^)9uE\D JcAsrtrG] if (isNaN(q) || isNaN(p))
&K ~k'P~m return;
77>oQ~q ).~
" q = parseInt(q);
kAftW
' p = parseFloat(p);
'&IGdB I Oa|c ?|+ txts[txts.length-1].value = (q * p).toFixed(2);
#;[G>-tC }
Et=Pr+Q{c </script>
dlu*s(O" |iM,bs c=!>m Bf{u:TCK rH@Rh}#yp 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。
\Kl20? page_load
9"~ FKMN page.smartNavigation=true
Qqm?%7A1 D|uvgu2 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 ?
,H=k5WA4m private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
H:fKv7XL {
(0-Ol9[ for(int i=0;i<e.Item.Cells.Count-1;i++)
%:3XYO.w- if(e.Item.ItemType==ListItemType.EditType)
a5*r1, {
VAPeMO
ck e.Item.Cells.Attributes.Add("Width", "80px")
HNzxFnh }
MN?aPpr> }
nY'V,v[F Tzq@ic#!B 26.对话框
)Sn0Y B private static string ScriptBegin = "<script language=\"JavaScript\">";
f$I=oN private static string ScriptEnd = "</script>";
3?Pg
;
kR =sr/{ public static void ConfirmMessageBox(string PageTarget,string Content)
h"FI]jK|} {
<-VBb[M# string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
+O}Ik.w *X0>Ru[ ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
7;jD>wp9D qb>ULP0 Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
+,e#uuj$p ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
Fh #QS'[ //Response.Write(strScript);
l=DF)#>w }
KC;cu%H #&Hi0..y 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
erH,EE^-x< qTJhYxm 1.1 取当前年月日时分秒
=%<=Bn currentTime=System.DateTime.Now;
7^dr[.Q[* {&5lZ<nu8A 1.2 取当前年
z; GQnAG@ int 年= DateTime.Now.Year;
.psb#4 ~I||"$R 1.3 取当前月
IkCuw./ int 月= DateTime.Now.Month;
h;V4|jM sT^R0Q'> 1.4 取当前日
ocGrB)7eD int 日= DateTime.Now.Day;
^/C\:hw ^{M$S0g|N 1.5 取当前时
yqN`R\d int 时= DateTime.Now.Hour;
_3Eo{^ ~?\U];l 1.6 取当前分
A@V$~&JCL5 int 分= DateTime.Now.Minute;
E'x"EN ]?6wU-a 1.7 取当前秒
ZJDV'mC} int 秒= DateTime.Now.Second;
[F6)Z[uG M%E<]H2;S 1.8 取当前毫秒
SkjG} int 毫秒= DateTime.Now.Millisecond;
j_<qnBeQ &%2^B[{ 28.自定义分页代码:
a_b#hM/c; >7W)iwF 先定义变量 :
Z9vMz3^N public static int pageCount; //总页面数
1jKpLTSs public static int curPageIndex=1; //当前页面
$8\u [Hh*lKg 下一页:
w)7y{ya$ if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
?lC>E[ {
S~ /2Bw!2 DataGrid1.CurrentPageIndex += 1;
;EBKzB curPageIndex+=1;
+La2-I }
Ph^1Ko"2 )U~|QdZ bind(); // DataGrid1数据绑定函数
z"f@iJX?2 ,5W7a 上一页:
Sr
\y1nt if(DataGrid1.CurrentPageIndex >0)
qA>#;UTp {
f1vD{M; DataGrid1.CurrentPageIndex += 1;
w[X-Q+7p(t curPageIndex-=1;
lC($@sC % }
{0,b[ h*R@ d bind(); // DataGrid1数据绑定函数
}uma<b (_ G>dP_ 直接页面跳转:
lie,A int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
[xiqlb,8 D>|`+=1'0" if(a<DataGrid1.PageCount)
lTC0kh {
(
v*xW. this.DataGrid1.CurrentPageIndex=a;
tK;xW }
YYpC!) q8P&rMwy bind();
a,w|r#x] &|x7T<,) 29.DataGrid使用:
+&S7l%- x'g4DYl 添加删除确认:
254V)(t^QM private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
GST#b6S {
pg%(6dqK4 foreach(DataGridItem di in this.DataGrid1.Items)
O14QlIk {
]In7%Qb if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
W yM1s+@ {
<&m50pq ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
N# }A9t }
IL|Q-e}Ol }
ah*{NR) }
OMK,L:poC nF'YG+;|@ 样式交替:
t+a.,$U ListItemType itemType = e.Item.ItemType;
yx Om=V X&WP.n) if (itemType == ListItemType.Item )
f- (i% {
o MJ`_ e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
0g[ %)C e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
:EOai%i }
\96\!7$@O else if( itemType == ListItemType.AlternatingItem)
":
vGs_$ {
?JZ$M e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
"r46Rfa e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
>OaD7 }
!p+54w\ 2 Q3WI@4 添加一个编号列:
BP9#}{kE DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
y.lWyH9 DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
41<~_+-@ =sk[I0W for(int i=0;i<dt.Rows.Count;i++)
U5kKT.M {
94-BcN dt.Rows["number"]=(i+1).ToString();
Nbr$G=U }
mcQL>7ts 3aq'JVq DataGrid1.DataSource=dt;
d~~kJKK DataGrid1.DataBind();
jh oA6I J-
S.m( DataGrid1中添加一个CheckBox,页面中添加一个全选框
#B5,k|"/,M private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
?Ujg.xo\ {
~uc7R/3ss foreach(DataGridItem thisitem in DataGrid1.Items)
rD=D.1_
{
YJv$,Z&;HO ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
gbuh04#~ }
CIIjZ)T }
Gt.'_hf Js upuN$4m&{ 将当前页面中DataGrid1显示的数据全部删除
j4owo#OB- foreach(DataGridItem thisitem in DataGrid1.Items)
XX/gS=NE#. {
E@ :9|5 if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
5VV}w R {
e>z"{ u(F0 string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
F(hPF6Zx( Del (strloginid); //删除函数
| @AXW }
W q<t+E[ }
$!_
X9)e +b-ON@9]J` 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
Lyhuyb)k5^ V#oz~GMB 在Application_Start中添加以下代码:
-US:a8` Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
#zl1#TC{( AppSettings["ConnStr"].ToString();
>T[/V3Z~K +fk*c[FG 31. 变量.ToString()
zufphS| tL OGj?/r 字符型转换 转为字符串
w80X~ 12345.ToString("n"); //生成 12,345.00
I:jIChT 12345.ToString("C"); //生成 ¥12,345.00
} [#8>T 12345.ToString("e"); //生成 1.234500e+004
0ZjT.Ep 12345.ToString("f4"); //生成 12345.0000
*/e$S[5 12345.ToString("x"); //生成 3039 (16进制)
BsFO]F5mmX 12345.ToString("p"); //生成 1,234,500.00%
iW6O9~ dT0W8oL 32、变量.Substring(参数1,参数2);
H7'42J@ Ln#o:" E 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);
1x_EAHZ>7 aLg,-@ 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)
sa+
JN^[X <SCRIPT language="javascript">
vNw(hT5750 <!--
%:~Ah6R1 function gook(pws)
sc]#T)xG {
/
<(|4e frm.submit();
'b.jKkW7 }
0Ye/ //-->
qR.FjQOvn iOZ9A~Ywy </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
~+' f[!^ <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
eI
( S)q <tr>
={xRNNUj_ <td>
-dovk?'Gj
<input id="f_user" type="hidden" size="1" name="f_user" runat="server">
c$1u <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
d[?RL&hJO <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
q%G[tXw j(y<oxh <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
8d*S9p,/ <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
h~Ir=JV p|gVIsg[-e </td>
(.$$U3\ jlb8<xIC] </tr>
M;XU"8 #fF5O2E'3 </form>
R>"pJbS;L ^JxVs
7 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。
=EVB?k
, J <z
^C 下面是获取用户输入的登陆信息的代码:
9%kO%j,3 string name;
06HU6d, name=Request.QueryString["EmailName"];
b6S"&hs ;L:UYhDbUx try
9=}#.W3. {
JQ
?8yl
int a=name.IndexOf("@",0,name.Length);
f]10^y5& f_user.Value=name.Substring(0,a);
5q4wREh f_domain.Value=name.Substring(a+1,name.Length-(a+1));
q>%.zc[x f_pass.Value=Request.QueryString["Psw"];
al Rz@N }
L"0dB. A]iT
uu5 p catch
ug}u>vQ> {
?ZTA3mV?+ Script.Alert("错误的邮箱!");
x%)oL:ue Server.Transfer("index.aspx");
t(UBs-t }