1. 打开新的窗口并传送参数:
Vg/{;uLAe |,bsMJh0 传送参数:
]]$s"F< response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
*L8Pj`zR `G\uTC pk 接收参数:
9|dgmEd string a = Request.QueryString("id");
3ik string b = Request.QueryString("id1");
.ag4i;hS8 \_FX}1Wc2. 2.为按钮添加对话框
In|:6YDL& Button1.Attributes.Add("onclick","return confirm(’确认?’)");
>#B%gxff button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
l?~SH[V D;)Tm|XizW 3.删除表格选定记录
!*.mcIQT int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
^.,pq?_ string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
ilQR@yp* Qvs}{h/ 4.删除表格记录警告
g o/]+vD private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
L,.Ae
i9 {
AwB ]0H switch(e.Item.ItemType)
1?"vKm {
r00waw>C\ case ListItemType.Item :
C$\|eC j case ListItemType.AlternatingItem :
sT dD=> case ListItemType.EditItem:
7X.rGJZq TableCell myTableCell;
;rpjXP myTableCell = e.Item.Cells[14];
e0"R7a LinkButton myDeleteButton ;
,St#/tu myDeleteButton = (LinkButton)myTableCell.Controls[0];
b9[;qqq@' myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
qSj2=dlW break;
A1@tp/L=o default:
fi+u!Y*3Z break;
ivC1=+ }
d<.
hkNN blph&[`}I }
?U~C= F?K ]y@8mb& 5.点击表格行链接另一页
DDn@M|*$ private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
B2VC:TG> {
K+ xiov-r? //点击表格打开
*7.!"rb8A if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
`?{QCBVj e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
(E59)z - }
y%k\=:m $6h:j#{JE 双击表格连接到另一页
=C8 t5BZ" U?JZ23>bbw 在itemDataBind事件中
{bL6%._C if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
,Cj1S7GFR
{
q5?g/-_0[ string OrderItemID =e.item.cells[1].Text;
tYiK#N7 ...
MVz=:2)J2 e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
ji<b#YO4 }
ws
Lg6 `GS!$9j 双击表格打开新一页
;oVdkp if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
5Fm.] / {
jNB|98NN string OrderItemID =e.item.cells[1].Text;
n[lf==R ...
!HL7a]PB e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
szMh}q"u }
0G1? 6#fl1GdH- ★特别注意:【?id=】 处不能为 【?id =】
Hv(0<k6oH 6.表格超连接列传递参数
jDIO,XuF <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
$'dJ+@ <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
FGu:8`c9 +4f>njARIb 7.表格点击改变颜色
q$e2x=? if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
{NXc<0a( {
6ND,4'6 e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
7kO5hlKeo this.style.color=’buttontext’;this.style.cursor=’default’;");
Ev%4}GwO4 }
MFcN.M ge:UliHJ 写在DataGrid的_ItemDataBound里
5i7,s if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
e~=fo#*2?@ {
q.FgX e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
0e9W>J9 this.style.color=’buttontext’;this.style.cursor=’default’;");
/]2-I_WB e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
7(^<Z5@ }
G!T)V2y RVy8%[Gcq $-YS\R\9x 8.关于日期格式
v5i[jM8 !OekN,6 日期格式设定
:.f =>s] DataFormatString="{0:yyyy-MM-dd}"
o0&jel1a "2(lgxhj 我觉得应该在itembound事件中
ym:^Y-^iV e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
?dlQE,hB$ KB <n-' 9.获取错误信息并到指定页面
Bx0^?> LF* 7;a 不要使用Response.Redirect,而应该使用Server.Transfer
Kf2*|ZHj Um]>B`."wK e.g
u&?J+ // in global.asax
a h>k=t8( protected void Application_Error(Object sender, EventArgs e) {
p}_bu@;.Z if (Server.GetLastError() is HttpUnhandledException)
x0@J~
_0 Server.Transfer("MyErrorPage.aspx");
(p26TN;*$5 +Tc<|-qQn //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
OsPx-|f
S~ }
$Ll]h</Z kc^Q?-? 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
."l@aE=| Ox.&tW%@ 10.清空Cookie
[[P?T^KT Cookie.Expires=[DateTime];
;!DUN zl Response.Cookies("UserName").Expires = 0
+b1(sk=4z U0t/(Jyg 11.自定义异常处理
OJ\IdUZ //自定义异常处理类
J!O5`k*.C using System;
nzE4P3 C+ using System.Diagnostics;
o)Kx:l +f \ F#mwl,>" namespace MyAppException
3]WIN_h {
JVf8KHDj /// <summary>
>|WNsjkU% /// 从系统异常类ApplicationException继承的应用程序异常处理类。
Brr{iBz*" /// 自动将异常内容记录到Windows NT/2000的应用程序日志
y _M<\b /// </summary>
|lOxRUf~ public class AppException:System.ApplicationException
5 :6^533] {
-q|K\>tgU public AppException()
} *|_P {
BusD}9QqB if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
Gp'rN}i^ }
$r *7)/ LOpnPH` public AppException(string message)
qEPvV {
&0SX*KyI LogEvent(message);
f;`pj`-k% }
zm)
]cq .x5Yfe public AppException(string message,Exception innerException)
.pNWpWL. {
xK 9"t;!C& LogEvent(message);
5s_7P"&H if (innerException != null)
))|Wm} {
\.2?951} LogEvent(innerException.Message);
\k / N/&; }
`4__X; }
Or=
[2@Wg =($RT //日志记录类
@'j=oTT using System;
x$d3fsEE using System.Configuration;
/+pbO-r W* using System.Diagnostics;
I>o+INb: using System.IO;
)9MmL-7K using System.Text;
a'U7 t using System.Threading;
&$t BD@7 `}#(Ze*V: namespace MyEventLog
=Ig'Aw$ x {
^5j| /// <summary>
mv|eEz)r /// 事件日志记录类,提供事件日志记录支持
e p~3e5 /// <remarks>
ne] |\] /// 定义了4个日志记录方法 (error, warning, info, trace)
}GJIM|7^ /// </remarks>
h
1G`z /// </summary>
v]\io#
public class ApplicationLog
J*$u {
Pf;'eOdp /// <summary>
0{#,'sc; /// 将错误信息记录到Win2000/NT事件日志中
L&ySXc= /// <param name="message">需要记录的文本信息</param>
=k6zUw;5 U /// </summary>
8-5MGh0L public static void WriteError(String message)
MO&QR-OY {
e}y oy+9 WriteLog(TraceLevel.Error, message);
<h:> :%# k }
_+YCwg )QEvV:\ /// <summary>
h
92\1, /// 将警告信息记录到Win2000/NT事件日志中
pXf@Y}mH /// <param name="message">需要记录的文本信息</param>
uN20sD} /// </summary>
W#87T_7T[ public static void WriteWarning(String message)
ac"Pn?
q {
VXXo\LQUU WriteLog(TraceLevel.Warning, message);
Y: &?xR }
"&?F6Pi #-
$?2?2 /// <summary>
nN" Y~W^k /// 将提示信息记录到Win2000/NT事件日志中
ppr95Y]^ /// <param name="message">需要记录的文本信息</param>
2KVMQH`B9 /// </summary>
L4`bGZl55 public static void WriteInfo(String message)
(pM5B8U {
N%N% WriteLog(TraceLevel.Info, message);
<>$`vuU }
)&:4//}a /// <summary>
=H6"\`W /// 将跟踪信息记录到Win2000/NT事件日志中
p\I,P2on /// <param name="message">需要记录的文本信息</param>
%7=B?c| /// </summary>
Pk/{~!+
$ public static void WriteTrace(String message)
H_)\:gTG {
P5s'cPX WriteLog(TraceLevel.Verbose, message);
J'^H@L/E }
"?EoYF_ Cj31>k1 /// <summary>
MMg"G6? /// 格式化记录到事件日志的文本信息格式
[of{~ /// <param name="ex">需要格式化的异常对象</param>
ZN>oz@jY /// <param name="catchInfo">异常信息标题字符串.</param>
-q1vB8gjj /// <retvalue>
*izPLM}+ /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
=H&{*Ja /// </retvalue>
E!<w t /// </summary>
qN((Xz+AZE public static String FormatException(Exception ex, String catchInfo)
.),ql_sXr {
19-|.9m( StringBuilder strBuilder = new StringBuilder();
(|%YyRaX if (catchInfo != String.Empty)
am,UUJ+h> {
~]X4ru5,4 strBuilder.Append(catchInfo).Append("\r\n");
L,#ij!txS }
4mR{\
d strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
5BKga1Q return strBuilder.ToString();
$g&,$7}O_ }
xG sg' l/9V59Fv9 /// <summary>
>zcR ?PPs /// 实际事件日志写入方法
g]au|$L4 /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
_kUf[& /// <param name="messageText">要记录的文本.</param>
@IL_ /// </summary>
=d>^q7s private static void WriteLog(TraceLevel level, String messageText)
S9kagiFX\ {
YEfa8'7R try
w@&g9e6E {
ph\KTLU EventLogEntryType LogEntryType;
0>hV?A switch (level)
F
FHk0!3 {
P,5gaT) case TraceLevel.Error:
d*3;6ZLy LogEntryType = EventLogEntryType.Error;
.ko8`J%%M break;
p6~\U5rXm case TraceLevel.Warning:
Pd-0u>k LogEntryType = EventLogEntryType.Warning;
W,&z:z> break;
P.^%8L case TraceLevel.Info:
H9'Y` -r LogEntryType = EventLogEntryType.Information;
lx9tUTaus/ break;
<aps)vF case TraceLevel.Verbose:
gC^4K9g LogEntryType = EventLogEntryType.SuccessAudit;
DyeV
uB break;
=7%1] default:
3[8F:I0UL LogEntryType = EventLogEntryType.SuccessAudit;
Jlgo@?Lc break;
%|mRib|<C }
hE.NW /C)mx#h] EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
Y rq-( //写入事件日志
a1V+doC eventLog.WriteEntry(messageText, LogEntryType);
5IOMc4v 'r`#u@TTZ }
p H&Tb4 catch {} //忽略任何异常
GFM$1} }
>q+o
MrU } //class ApplicationLog
&k'J5YHm8H }
>y&Db f-6hcd@Ca 12.Panel 横向滚动,纵向自动扩展
E`vCYhf{ <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
!OwRx5 :4 9ttJl 13.回车转换成Tab
R.n:W;^` <script language="javascript" for="document" event="onkeydown">
EC[2rROn\ if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
2c?-_OCy; event.keyCode=9;
s7j#Yg </script>
=.vc={_?
r!Ujy .R onkeydown="if(event.keyCode==13) event.keyCode=9"
{2u#Q7]| aLr\Uq,83 14.DataGrid超级连接列
m1,?rqeb DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
1J$sIY,Ou r$3{1HXc 15.DataGrid行随鼠标变色
Oc\Bu6F private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
:e9}k5kdk {
-]8cw#y
0A if (e.Item.ItemType!=ListItemType.Header)
3;fuz Kk@b {
_-^bAr`z e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
S3cjw9V e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
*}BaO*A }
MUo}Qi0K }
_T[ =7 cn V&7jd7
2{ 16.模板列
5AmYrXZ <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
`[T|Ck5 <ITEMTEMPLATE>
N}ur0 'J0 <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
!Jh/M^ </ITEMTEMPLATE>
kpc3l[.A </ASP:TEMPLATECOLUMN>
}e}J6[wP H(qDQqJHYy <ASP:TEMPLATECOLUMN headertext="选中">
foh>8/AL/ <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
&(H;Bin' <ITEMTEMPLATE>
B> kx$_~ <ASP:CHECKBOX id="chkExport" runat="server" />
HsA4NRF'7 </ITEMTEMPLATE>
F8e]sa$K\ <EDITITEMTEMPLATE>
L2"fO <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
1.7tXjRd+ </EDITITEMTEMPLATE>
T
KpX]H` </ASP:TEMPLATECOLUMN>
^,@!L-<~(b SM> V
o+ 后台代码
INca protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
nAc02lJh| {
S}=d74(/n //改变列的选定,实现全选或全不选。
T&.ZeB1 CheckBox chkExport ;
\^<eJfD if( CheckAll.Checked)
o*5<Cxg {
u nE h foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
c^^[~YWj {
XA8{N chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
X+l&MD chkExport.Checked = true;
1r6>.&p }
>Mml+4<5 }
fhx_v^<X else
HKA7|z9{ {
d\FBY&C7b foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
F :"CaDk {
YE<_a;yh1 chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
V!!E)I chkExport.Checked = false;
F@e9Dz| }
I@dS/ }
nic7RN?F< }
m/#)B6@A A%H" a+ 17.数字格式化
ByR%2_6& w6C0]vh 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
GX4HW \>a <%#Container.DataItem("price","{0:¥#,##0.00}")%>
)4oTA@wR jYAD9v% int i=123456;
V=!tZ[4z$h string s=i.ToString("###,###.00");
x!CCSM;q fVCpG~&t 18.日期格式化
w_-v!s2 }S{#DgZ@X 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
RhVQVj c 8BUPvaP<[ 显示为: 2004-8-11 19:44:28
m9My wOH$S=Ba5, 我只想要:2004-8-11 】
/A3tY"Vn <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
X}?`G?' #h'F6 应该如何改?
#7S[Ch}O ZJev_mj 【格式化日期】
3nVdws 83,ATQg 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
&Q7vY ?nOul}y/ 【日期的验证表达式】
--SlxV/x bYT,f.,5{ A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
`Q d_Gu,M ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
\(9hg.E |KR;$e& B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
8,0p14I5; ^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$
v]CH
L#
| c8qsp n 【大小写转换】
SH#-3&$[ HttpUtility.HtmlEncode(string);
6 /8?: HttpUtility.HtmlDecode(string)
E?>
ERO3 W79wz\a 19.如何设定全局变量
7hPiPv
> %5<fK2
Global.asax中
+o]DT7W 3DH}
YAUU Application_Start()事件中
'UGkL; Bny3j~*U 添加Application[属性名] = xxx;
ZTV|rzE ,k}-I65M*t 就是你的全局变量
{[V<mT2/ HIUB: 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
gzS6{570 %5|awWo_? HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
5VWyc9Q Q/EHvb] 【ASPNETMENU】点击菜单项弹出新窗口
Y<lJj"G m44Ab6gpsb 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
29R_?HBH <?xml version="1.0" encoding="GB2312"?>
V gLnpPOQ <MenuData ImagesBaseURL="images/">
92|\`\LP% <MenuGroup>
}G,PUjg_^3 <MenuItem Label="内参信息" URL="Infomation.aspx" >
sJ{S(wpi" <MenuGroup ID="BBC">
<d".v <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
H$2<N@'4z <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
- inZX`afA ......
Wr.G9zq.+ tz#Fy?pe 最好将你的aspnetmenu升级到1.2版
6?an._ C .(T*mk*> 21.读取DataGrid控件TextBox值
pSM\(kVKa foreach(DataGrid dgi in yourDataGrid.Items)
:77dl/d% {
K.k%Tg[ ~ TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
9r,)Bw!RP tb.Text....
xVOoYr>O }
fUy:TCS SJ(<u2J] 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?
15NeC7GAh rr/0pa$ 〖思归〗
iYwzdW1 <asp:TemplateColumn HeaderText="数量">
<Sm@ !yx <ItemTemplate>
F Xbf7G)H <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
F@</Ev onkeyup="javascript:DoCal()"
!zc?o?~z />
6_`9
4+ QDO.&G2 <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
d\% |!ix </ItemTemplate>
<Co\?h/< </asp:TemplateColumn>
)$[.XKoT zo!e<>o <asp:TemplateColumn HeaderText="单价">
E0 ~\ A; <ItemTemplate>
_}4l4 <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
R5_xli% onkeyup="javascript:DoCal()"
=ELl86=CG />
oC"1{ybyl :m~R<BQ" <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
WCf?_\cG /G}TPXA </ItemTemplate>
3iKBVN </asp:TemplateColumn>
v(5zSo ^! ?wh <asp:TemplateColumn HeaderText="金额">
;[pY>VJ( <ItemTemplate>
VJp; XM <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
!% ' dyj </ItemTemplate>
'Z^-(xG,+ </asp:TemplateColumn><script language="javascript">
-_<rmR[:] function DoCal()
wGRMv1|lIu {
9 b?Nlk8d var e = event.srcElement;
ozF173iI var row = e.parentNode.parentNode;
0O,Q]P 82f var txts = row.all.tags("INPUT");
IIrp-E MXJ if (!txts.length || txts.length < 3)
$CT2E return;
[nL{n bli u">KE6um var q = txts[txts.length-3].value;
U]!~C 1cmw var p = txts[txts.length-2].value;
P*9vs %W fpESuVKr if (isNaN(q) || isNaN(p))
3<c_`BWu return;
ZboY]1L[j VZ69s{/.B q = parseInt(q);
d~ m,hCTe p = parseFloat(p);
S3cV^CzNg HN7C+e4U~ txts[txts.length-1].value = (q * p).toFixed(2);
X:3W9`s)* }
s2`:NS </script>
9d5|rk8VS y+R*<5qC< st91rV$y? 25bLU?x5B ZA1u 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。
Z4@%0mFll page_load
&\w:jI44Bs page.smartNavigation=true
Pl2ZA)[g Zt3Y<3o 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 ?
1MVzu7 private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
y5oC|v7 {
B <et&r; for(int i=0;i<e.Item.Cells.Count-1;i++)
$7\! if(e.Item.ItemType==ListItemType.EditType)
g#??Mz {
NG)Xk[q4 e.Item.Cells.Attributes.Add("Width", "80px")
xna4W|- }
6qAs$[ }
SuorCp] Vdpvo;4uy 26.对话框
`Z)]mH\X private static string ScriptBegin = "<script language=\"JavaScript\">";
p`oSI}ZwB private static string ScriptEnd = "</script>";
@d/Wa=K gk-g!v& public static void ConfirmMessageBox(string PageTarget,string Content)
e<.O'!=7Y {
reO^_q' string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
cV|u]ce%1 CVk.Ez6 ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
295U< .YYLMI Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
J.t tJOP ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
?WD JWp% //Response.Write(strScript);
=r?#,'a }
W.|r=
#RN"Ul-B| 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
;XUiV$ `fL81)!jI# 1.1 取当前年月日时分秒
R=/^5DZ} currentTime=System.DateTime.Now;
1I^uq>r bOvMXj/HV= 1.2 取当前年
?H30 int 年= DateTime.Now.Year;
*{#l0My O /S: S 1.3 取当前月
czp .q int 月= DateTime.Now.Month;
K1*oYH B 1kDr;.m% 1.4 取当前日
rzk]{W int 日= DateTime.Now.Day;
CcDi65s . #7B10 1.5 取当前时
Y<h [5 int 时= DateTime.Now.Hour;
[UW%(N AJ%x" 1.6 取当前分
E <O:
int 分= DateTime.Now.Minute;
2A,iY}R >sfH[b 1.7 取当前秒
zfexaf! int 秒= DateTime.Now.Second;
AhNy+p{ C=y[WsT 1.8 取当前毫秒
X~#jx(0_ int 毫秒= DateTime.Now.Millisecond;
){_D 0Na/3cz|zg 28.自定义分页代码:
3lW7auH4Y{ u djahI<{ 先定义变量 :
`3QAXDWE public static int pageCount; //总页面数
(*X SrQ public static int curPageIndex=1; //当前页面
5VLJ:I?0O 2)W~7GED 下一页:
*!W<yNrR if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
Z'@a@Y+ {
l7p*::(9 DataGrid1.CurrentPageIndex += 1;
!(&N{NH9 curPageIndex+=1;
eHt |O~ }
3%J7_e' |IgH0
zZ bind(); // DataGrid1数据绑定函数
l+V#`S*q ;DG&HO 上一页:
doj$chy if(DataGrid1.CurrentPageIndex >0)
s/"l ?d {
/ }tMb DataGrid1.CurrentPageIndex += 1;
?F!='6D}b curPageIndex-=1;
?)2&LVrf }
n>5/y
c"/q i#RT4}l"a bind(); // DataGrid1数据绑定函数
U`-]U2" x9lG$0k:V 直接页面跳转:
B(z?IW& int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
o`EL)K{ <-3_tu>l if(a<DataGrid1.PageCount)
Z~WUILx, {
;`(l)X+7 this.DataGrid1.CurrentPageIndex=a;
FFvF4]|L }
QL{ ^ BB)(#yoi bind();
|Qa [N( <q dM 29.DataGrid使用:
{dk%j~w8 )q>mt/, 添加删除确认:
-9(9LU2 private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
.]IidsgM {
SZ*Nr=X foreach(DataGridItem di in this.DataGrid1.Items)
P%nN#Qm {
);~JyoDo if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
;<?mMi@<E {
yM}Wg~:D: ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
u6pfc'GG g }
]'%Z&1 w }
iFi6,V*PRt }
2X@|H Q^_*&},V 样式交替:
i!U,qV1 ListItemType itemType = e.Item.ItemType;
W-ctx"9DS k>ERU]7[ if (itemType == ListItemType.Item )
pod=|(c {
foi@z9 e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
"PI]k e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
ZtFOIb* }
RdtF5#\z else if( itemType == ListItemType.AlternatingItem)
;rK=
jz^Q {
%xH2jf e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
=HGC<# e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
7H~J?_ }
Q9!T@ , (Bo .(] 添加一个编号列:
c-dOb.v0 DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
-#e3aXe DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
|d@%Vb_ #"6O3.P for(int i=0;i<dt.Rows.Count;i++)
K:osfd {
;]/emw=a dt.Rows["number"]=(i+1).ToString();
GW[g!66^ }
x)h|!T=B~ `wzb}"gLsM DataGrid1.DataSource=dt;
x'c%w: DataGrid1.DataBind();
2A5R3x=\ |IL/F]I DataGrid1中添加一个CheckBox,页面中添加一个全选框
n*Q~<`T private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
Q=+*OQV29 {
1F*3K3T { foreach(DataGridItem thisitem in DataGrid1.Items)
";PW#VHC {
.*3.47O ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
}K8W%h<3S }
Wvg+5Q }
`ecIy_O3P& \N[Z58R !z 将当前页面中DataGrid1显示的数据全部删除
)rqb<O foreach(DataGridItem thisitem in DataGrid1.Items)
bu
j}pEI {
9MI~yIt`L if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
4=T.rVS[ {
zP
F0M( string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
de&*#O5 Del (strloginid); //删除函数
R;6$lO8C& }
S>!
YBzm&X }
8H%-/2NW g$(<wWsU 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
6w )mo)<X D #`o 在Application_Start中添加以下代码:
lHTW e' Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
Pa8E.<> AppSettings["ConnStr"].ToString();
gE_i#=bw =.sg$VX 31. 变量.ToString()
Q^|ZoJS mHiV};$ 字符型转换 转为字符串
S1!X;PP/ 12345.ToString("n"); //生成 12,345.00
z;#DX15Rj 12345.ToString("C"); //生成 ¥12,345.00
2!7)7wlj0 12345.ToString("e"); //生成 1.234500e+004
X*Qtbm, 12345.ToString("f4"); //生成 12345.0000
x+=Ko 12345.ToString("x"); //生成 3039 (16进制)
9}=]oX!+V 12345.ToString("p"); //生成 1,234,500.00%
;F/yS2p 5 }pn5iI 32、变量.Substring(参数1,参数2);
G[pDKELL e\[z Q
2Z3 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);
<fZ?F= Y%i=u:}fm 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)
;`{PA
!> <SCRIPT language="javascript">
%/K'VE6pb <!--
fW'@+<b function gook(pws)
QO-R> {
~)ecQ frm.submit();
t=K;/1 }
}^}fx [ //-->
#TXN\YNP BeNH"Y:E </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
Gl4(-e'b <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
n'
XvPV| <tr>
BkH- d z <td>
}Sxuc/%: <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
0G`F Xj}L <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
sp/l-a <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
@AvDV$F ptCFW_UV <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
/^F_~.u{ <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
#)qn$&.H fpDx)lQ </td>
#]~l]Eq &8##)tS(y </tr>
Y/3CB n O^m </form>
zm&D#) "<#-#j 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。
FE0}V}\=h e]1&f.K 下面是获取用户输入的登陆信息的代码:
z<T(afM{* string name;
<;O-N= name=Request.QueryString["EmailName"];
9i&(VzY[= TpHvZ]c try
DaA9fJ7a
{
d~G, * int a=name.IndexOf("@",0,name.Length);
D.Q9fa&P f_user.Value=name.Substring(0,a);
!vaS fL*] f_domain.Value=name.Substring(a+1,name.Length-(a+1));
p}b:(QN~m f_pass.Value=Request.QueryString["Psw"];
c Nhy.Z~D }
P
,%IZ. fAW( catch
$,mljJSQv {
GH6 HdZ Script.Alert("错误的邮箱!");
2/T4.[`t Server.Transfer("index.aspx");
k2"DFXsv }