1. 打开新的窗口并传送参数:
9lGa*f) G@jx&#v 传送参数:
4K`b?{){+a response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
Bt$,=k _<c}iZv@ 接收参数:
.:Wp9M string a = Request.QueryString("id");
`<<9A\Y-f string b = Request.QueryString("id1");
>>C
S8 RX?!MDO 2.为按钮添加对话框
3%o}3.P,:@ Button1.Attributes.Add("onclick","return confirm(’确认?’)");
Lp|n)29+du button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
y,n.(?!* -OD&x%L*{3 3.删除表格选定记录
`#`C.:/n int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
&;JeLL1J string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
8
Elhcs !~'D;Jh 4.删除表格记录警告
5{1=BZftZ private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
46 \!W(O~y {
'4~I%Z7L switch(e.Item.ItemType)
a"g\f{v0AR {
zn^ G V case ListItemType.Item :
Rh
]XJM case ListItemType.AlternatingItem :
!m'Rp~t case ListItemType.EditItem:
XA. 1Y) TableCell myTableCell;
c0&!S-4M myTableCell = e.Item.Cells[14];
awQGu,<N LinkButton myDeleteButton ;
:2vuc!Pu myDeleteButton = (LinkButton)myTableCell.Controls[0];
j8^#698X myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
OR|Jc+LT break;
b~)2`l default:
-T+'3</T break;
| lzcyz }
a[}?!G-Wt| N,VI55J:y> }
4JO16 KE5>O1 5.点击表格行链接另一页
x=x%F; private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
-*T0Cl. {
KZ AF9 //点击表格打开
PX/^* if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
NzM ,0q e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
L|-|DOgw }
^4\0,> unz~vG1Tn 双击表格连接到另一页
xkSVD6Km YG0b*QBY~ 在itemDataBind事件中
j*f\Z!EeZ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
6jm/y@|F! {
368 g>/#' string OrderItemID =e.item.cells[1].Text;
rqm":N8@ ...
4:b'VHW. e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
@PQd6%@ }
z?|bs?HKS 8+Gwv
SDU 双击表格打开新一页
[fvjvN` if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
fWs*u[S {
Q4]Od{[ string OrderItemID =e.item.cells[1].Text;
4N7|LxNNl_ ...
;}ThBb3 e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
z" ?WT$ }
@ uQ *$ {'{9B ★特别注意:【?id=】 处不能为 【?id =】
m,]9\0GUd 6.表格超连接列传递参数
9p^gF2?k <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
]8Xip/uE <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
Clap3E|a lU$0e09 7.表格点击改变颜色
]\}MSo3 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
A
=&`TfXu {
-'*<;]P+. e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
N
Mx:Jh-YN this.style.color=’buttontext’;this.style.cursor=’default’;");
NB.'>Sar }
\,v+ejhw "d}ey=$h4 写在DataGrid的_ItemDataBound里
Co=Bq{GY if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
u'DpZ {
yO7#n0q e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
:c8d([)$ this.style.color=’buttontext’;this.style.cursor=’default’;");
Z^_zcH' e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
n)35-?R/M }
'W("s Vu E$-)&) HN5,MD[ 8.关于日期格式
SdnO#J}{ Y"m(hs$ 日期格式设定
PQh s^D DataFormatString="{0:yyyy-MM-dd}"
HGd.meQ 0plX"NU 我觉得应该在itembound事件中
NN5Ejr, e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
DpT$19Q+ 1_Av_X 9.获取错误信息并到指定页面
B/!/2x Nqz6_! 不要使用Response.Redirect,而应该使用Server.Transfer
E8p,l>6(f ^kz(/c/ ? e.g
P46Q3EE
// in global.asax
?gjx7TQ? protected void Application_Error(Object sender, EventArgs e) {
@A*>lUo if (Server.GetLastError() is HttpUnhandledException)
*8)va Server.Transfer("MyErrorPage.aspx");
8B(v6(h ~$"2,& //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
*BF[thB:a }
L*vKIP<EMM )Z['=+s% 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
S QGYH Un
T\6u 10.清空Cookie
\ a(ce?C Cookie.Expires=[DateTime];
iXvrZofE Response.Cookies("UserName").Expires = 0
(vchZn# +"k?G 11.自定义异常处理
rcY &n^: //自定义异常处理类
*-Vr=e<8 using System;
%yk_(3a using System.Diagnostics;
_ u~0t`f~ 've[Mx namespace MyAppException
u3pFH( {
%NC/zqPH~ /// <summary>
LGX+_" /// 从系统异常类ApplicationException继承的应用程序异常处理类。
!7MRHI/0C /// 自动将异常内容记录到Windows NT/2000的应用程序日志
WBm)Q#1: /// </summary>
,_,*I/o>B public class AppException:System.ApplicationException
UEfY'%x {
X|ZAC!J5> public AppException()
=_ b/g {
K,%CE
]. if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
d2-oy5cEB }
.V3e>8gw3 W}MN-0 public AppException(string message)
UF*R1{ {
P~iZae
LogEvent(message);
jiLJiYMg }
"dvo@n| ;YW@ 3F-h public AppException(string message,Exception innerException)
VYO1qj {
7\R"RH- LogEvent(message);
.q[}e);) if (innerException != null)
V{A`?Jl6{ {
ecQ,DOX|b LogEvent(innerException.Message);
10OkrNQ }
WW&Wh<4 }
mdEl
CC0 n9`]}bnX //日志记录类
G43r85LO using System;
aJA( UN45 using System.Configuration;
R<{Vgy using System.Diagnostics;
&/"a
E using System.IO;
>TBXT+ using System.Text;
FOMJRq using System.Threading;
vZ.<OD4 BOq9\g`5s namespace MyEventLog
P?P.QK {
Y#~A":A /// <summary>
a'dlAda /// 事件日志记录类,提供事件日志记录支持
%d(= > /// <remarks>
8"ZS|^#
/// 定义了4个日志记录方法 (error, warning, info, trace)
.5}Gt>4XM /// </remarks>
z0SF2L H /// </summary>
.Y^cs+-o public class ApplicationLog
N2duhI6 {
V %D1Q}X /// <summary>
32%Fdz1S /// 将错误信息记录到Win2000/NT事件日志中
*h3iAcM8 /// <param name="message">需要记录的文本信息</param>
?h%Jb^#9 /// </summary>
ctjQBWE public static void WriteError(String message)
N
fG9a~ {
$u yx WriteLog(TraceLevel.Error, message);
'=#fELMW }
>8=lX`9f{ 0.w7S6v|& /// <summary>
9:-7.^`P /// 将警告信息记录到Win2000/NT事件日志中
}f?[m&< /// <param name="message">需要记录的文本信息</param>
E]GbLU;TH /// </summary>
ctLNzJes% public static void WriteWarning(String message)
f% )9!qeW {
[Z#Sj=z WriteLog(TraceLevel.Warning, message);
5\#I4\ }
~QxW^DGa7] B%MdJD> /// <summary>
_6ck@ /// 将提示信息记录到Win2000/NT事件日志中
c1jRj=\ /// <param name="message">需要记录的文本信息</param>
LCtVM70 /// </summary>
_N^w5EBC] public static void WriteInfo(String message)
&r4|WM/ec {
s*<T'0&w0S WriteLog(TraceLevel.Info, message);
::$W
.!Uv }
Y_!+Y<x7v /// <summary>
U&Vu%+B /// 将跟踪信息记录到Win2000/NT事件日志中
gD4vV'| /// <param name="message">需要记录的文本信息</param>
fi%i
2Wy /// </summary>
3Ke6lV)uq public static void WriteTrace(String message)
<p*k-mfr {
7*KUM6z WriteLog(TraceLevel.Verbose, message);
=r7!QXPH} }
6kdbbGO- F4==a8 /// <summary>
"NGfT:HV /// 格式化记录到事件日志的文本信息格式
09jE7g @X} /// <param name="ex">需要格式化的异常对象</param>
Mb 4"bDBsl /// <param name="catchInfo">异常信息标题字符串.</param>
jHn7H)F8 /// <retvalue>
%]DA4W /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
W&%,XwkQ /// </retvalue>
[X!w@d= i /// </summary>
aK@
Y) Ju' public static String FormatException(Exception ex, String catchInfo)
4YikC {
}^&f { StringBuilder strBuilder = new StringBuilder();
PgT8
1u if (catchInfo != String.Empty)
'o#oRK{# {
QRf>lZP strBuilder.Append(catchInfo).Append("\r\n");
'6&o:t }
/]!2k9u\ strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
R#^ku)0 return strBuilder.ToString();
a{hc{ }
Hxgc9Fis BOG.[?yx /// <summary>
_avf%OS /// 实际事件日志写入方法
|.0~' /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
%\T,=9tD\ /// <param name="messageText">要记录的文本.</param>
K3[+L`pz /// </summary>
o9"?z private static void WriteLog(TraceLevel level, String messageText)
U{M3QOF {
'kcR:5B try
aXJ/"k #Tl {
72Y6gcg EventLogEntryType LogEntryType;
NGl
8*Af switch (level)
oYZ
4F {
7KhS{w6 case TraceLevel.Error:
:e;6oC*"q LogEntryType = EventLogEntryType.Error;
DlE, aYB break;
$">j~! ' case TraceLevel.Warning:
kF~(B]W( LogEntryType = EventLogEntryType.Warning;
k/wD@H N break;
.G!xcQ`? case TraceLevel.Info:
6Uk+a=Ar LogEntryType = EventLogEntryType.Information;
4hwb]
Yz break;
J#F5by%8 case TraceLevel.Verbose:
b2UDP W LogEntryType = EventLogEntryType.SuccessAudit;
YxJQ^D` break;
:#^qn|{e default:
nco.j: LogEntryType = EventLogEntryType.SuccessAudit;
hoqZb<: break;
lsOv#X-bE }
PD0&ep1h7G :! oJmvy EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
208^Yu //写入事件日志
l X+~; 94 eventLog.WriteEntry(messageText, LogEntryType);
HC6U_d1-6 EXr2d" }
#[{{&sN catch {} //忽略任何异常
EpMxq7* }
rBTg"^jsw } //class ApplicationLog
X_o#! }
=IsmPQKi xBTx`+%WS 12.Panel 横向滚动,纵向自动扩展
rtJER?A <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
Y|fD)zG_ B\c_GX Uw 13.回车转换成Tab
\~E?;q! <script language="javascript" for="document" event="onkeydown">
[StnKQ?"wz if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
HdqB B event.keyCode=9;
Bc"MOSV0 </script>
P|$n W4^zKnH onkeydown="if(event.keyCode==13) event.keyCode=9"
uv/\1N;V3 jj2iF/ 14.DataGrid超级连接列
6-_g1vq DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
zY_J7,0g [q2:d^_FA 15.DataGrid行随鼠标变色
S9Yzvq!( private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
3d6z_Yd: {
rC^5Z if (e.Item.ItemType!=ListItemType.Header)
:kR>wX {
)-)rL@s. e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
MOaI~xZ e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
iF^qbh%%E }
T:@6(_Z }
yogavCD9b/ W-s 6+DY 16.模板列
N<rq}^qo <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
0NU%z.(%s <ITEMTEMPLATE>
HfVHjF) <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
M=liG+d </ITEMTEMPLATE>
K'Ywv@ </ASP:TEMPLATECOLUMN>
2j%=o?me^p ?K[Y"*y2 <ASP:TEMPLATECOLUMN headertext="选中">
ay7\Ae] <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
Unb2D4&' <ITEMTEMPLATE>
z1Ieva] <ASP:CHECKBOX id="chkExport" runat="server" />
<!Cjq,Sk7 </ITEMTEMPLATE>
h$'6."I <EDITITEMTEMPLATE>
6U*CR=4
<ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
\s*UUODWK </EDITITEMTEMPLATE>
Q`9c/vPU </ASP:TEMPLATECOLUMN>
UXBWCo;- '/u|32 后台代码
#MA6eE'R protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
(`dz37@* {
B<SE|~\2 //改变列的选定,实现全选或全不选。
Ux=~-}<-w CheckBox chkExport ;
o(SPT?ao~ if( CheckAll.Checked)
ih0a#PB8 {
tVAo o-% foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
&<e18L7a {
L8h3kT chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
2@ZVEN chkExport.Checked = true;
Nz2V aZ }
47Z3nl? }
(2#Xa,pb else
#s~;ss , {
#]jl{K\f#X foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
$\NqD:fgb {
e' l9 chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
7(+4^ chkExport.Checked = false;
yk8b>.Y\A }
Ljm`KE\Q;t }
`#ruZM066 }
D ;> 7y}\ 'z8FU~oU 17.数字格式化
~x,_A>a 6AJk6W^Z 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
dBd7#V:}yV <%#Container.DataItem("price","{0:¥#,##0.00}")%>
)ovAG O RlL]p`g int i=123456;
l'(FM^8jv string s=i.ToString("###,###.00");
[y9a.*]u/@ ~ZVz
sNrx 18.日期格式化
(BLxK)0<" vd lss| 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
EU[eG^/0@ dB_0B. 显示为: 2004-8-11 19:44:28
J]TqH`MA oM!&S'M/ 我只想要:2004-8-11 】
e|{R2z"^ <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
X+]>pA lZ-U/$od 应该如何改?
~-zIB=TyK ,N(Yjq"R 【格式化日期】
nnj<k5 <8b1OdA 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
(U& -SM_JR3< 【日期的验证表达式】
5bt>MoKxv i6KfH\{N A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
> mO*.' Gm ^((\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})))?$
p Run5 )7 Qa_V B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
Vr},+Rj ^\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]))$
I*N"_uKU -NJpql{Cb 【大小写转换】
9s"st\u
4 HttpUtility.HtmlEncode(string);
Z>`\$1CI HttpUtility.HtmlDecode(string)
N~=I))i y-3'qq'E 19.如何设定全局变量
*Mhirz%iD B$2b=\ Global.asax中
g{DehBM LXo$\~M8G8 Application_Start()事件中
9PKXQp %FYhq:j 添加Application[属性名] = xxx;
5\pS8<RJ; 7_2D4CI 就是你的全局变量
sg7h&<Xx CnB[ImMs(A 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
h}@wPP{ 3FR(gr$X HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
SQ,-45@W -kk7y 【ASPNETMENU】点击菜单项弹出新窗口
G~1;_' T MMKRC1< 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
!=:>y WQ <?xml version="1.0" encoding="GB2312"?>
3cghg._ <MenuData ImagesBaseURL="images/">
fc3 nQp7 <MenuGroup>
ym{@w3"S <MenuItem Label="内参信息" URL="Infomation.aspx" >
5Qq/nUR <MenuGroup ID="BBC">
<u\Hy0g <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
b5|*p(7[ <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
#1haq[Uv7 ......
/iO"4%v o5s6$\" 最好将你的aspnetmenu升级到1.2版
C<J*C0vQO +H3~Infr4f 21.读取DataGrid控件TextBox值
X "7CN Td foreach(DataGrid dgi in yourDataGrid.Items)
B`-uZ9k {
et+lL"& TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
,pD sU @ tb.Text....
`'s_5Ek }
D Yf2V6' >;4q 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?
~frsgHW 68z#9}
〖思归〗
Sqn>L`Lz <asp:TemplateColumn HeaderText="数量">
?IAu,s*u <ItemTemplate>
nKGQU,C <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
@
3=pFYW) onkeyup="javascript:DoCal()"
0;TiNrzg />
x 4v:67_^ &)k=ccm <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
73X*|g[O </ItemTemplate>
^}~Q(ji7 </asp:TemplateColumn>
hOB<6Tm[ 7N 0Bj! <asp:TemplateColumn HeaderText="单价">
Hes!uy <ItemTemplate>
o>M^&)Xs <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
my A;Y onkeyup="javascript:DoCal()"
9 wR D=a />
t}R!i-D|HB 8j>V?'Szk <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
S} UYkns* 1!^BcrG. </ItemTemplate>
~}b0zL </asp:TemplateColumn>
n3$=& Q$U.vF7BnP <asp:TemplateColumn HeaderText="金额">
&$|~", <ItemTemplate>
>;Hx<FKxP <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
(X@\2M4@T# </ItemTemplate>
qR
cSB </asp:TemplateColumn><script language="javascript">
HjK8y@j function DoCal()
.fzyA5@l {
7Y@]o=DIc var e = event.srcElement;
FL \pgbI var row = e.parentNode.parentNode;
^rfR<Q` var txts = row.all.tags("INPUT");
(m2%7f.I if (!txts.length || txts.length < 3)
1SjVj9{: return;
q,ie)` y?UJ<QAi var q = txts[txts.length-3].value;
TI3xt-/ var p = txts[txts.length-2].value;
3q4Zwv0z20 P- ZvW<M if (isNaN(q) || isNaN(p))
XcoX8R%U return;
9!=4}:+ ,5zY1C==Ut q = parseInt(q);
1L::Qu%E p = parseFloat(p);
A~Sc ] M (DvPdOT+3 txts[txts.length-1].value = (q * p).toFixed(2);
WILa8"M }
f.J^HQ_ </script>
|I1,9ex !X7z y9 O83J[YuzjN K7C
<}y k+{~#@ 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。
#"6l+} page_load
:i>LESJq page.smartNavigation=true
#tZ!D^GQHq 6%p6BK6 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 ?
?:/J8s
[O private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
]uFJ~:R {
tiGH#~? for(int i=0;i<e.Item.Cells.Count-1;i++)
pHR`%2!"t if(e.Item.ItemType==ListItemType.EditType)
\
R}I4' {
gtH^'vFZ e.Item.Cells.Attributes.Add("Width", "80px")
U $#^ e }
2#$7!`6K }
H 2I x(u.(:V 26.对话框
-}TP)/!,* private static string ScriptBegin = "<script language=\"JavaScript\">";
[cDDZ+6 private static string ScriptEnd = "</script>";
H$ nzyooh f
] *w1 public static void ConfirmMessageBox(string PageTarget,string Content)
@{qcu\sZ {
e6'0g=Y# string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
e;=R8i l1zPL3"u_^ ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
*H/)S 5 sB:e:PK Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
_K?v^oM# ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
-ioO8D&! //Response.Write(strScript);
JUw|nUnl? }
0*]0#2Z prO&"t
> 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
;gEEdx'&T VB/75xK_ 1.1 取当前年月日时分秒
=UO7!vr;[ currentTime=System.DateTime.Now;
O(evlci t@lTA>;U@ 1.2 取当前年
c%G~HOE=B int 年= DateTime.Now.Year;
rY Puo n. N0Nhd 1.3 取当前月
Kc]
GE#~g int 月= DateTime.Now.Month;
&56\@t^ fR;[??NH 1.4 取当前日
:Hitx int 日= DateTime.Now.Day;
B[sI7D>Y evEdFY 1.5 取当前时
S~ckIN] int 时= DateTime.Now.Hour;
|(x%J[n0+ SgQmR#5 1.6 取当前分
n=rmf*,? int 分= DateTime.Now.Minute;
-"Kjn`8 71(ppsHk 1.7 取当前秒
Ld:-S,2 int 秒= DateTime.Now.Second;
D_F1<q Xl$r720ZJr 1.8 取当前毫秒
E\4ZUGy0 int 毫秒= DateTime.Now.Millisecond;
uuHs)
*W | 28.自定义分页代码:
Q.4+"JoG 7zQGuGo( 先定义变量 :
l66 QgPA public static int pageCount; //总页面数
4t*VI<=<[ public static int curPageIndex=1; //当前页面
w'i+WEU>l ?aaYka] 下一页:
]S(nA!] if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
MYJDfI {
KxmB$x5-=8 DataGrid1.CurrentPageIndex += 1;
\o,et9zDJ3 curPageIndex+=1;
R90chl }
CU\r
I !x-9A bind(); // DataGrid1数据绑定函数
1N]-WCxQ \HoVS 上一页:
N}z]OvnZH if(DataGrid1.CurrentPageIndex >0)
`aMnTF5: {
9@h-q(-
DataGrid1.CurrentPageIndex += 1;
V?MaI.gj curPageIndex-=1;
0^P9)<k' }
A@.ruG$ ?)qm=mebY bind(); // DataGrid1数据绑定函数
0a?[@ -Sz IH=%%AS 直接页面跳转:
Ka{QjW!%d< int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
g$=']A?W_ jxw8jo06: if(a<DataGrid1.PageCount)
*W}nw$tnBX {
JDpW7OrDc this.DataGrid1.CurrentPageIndex=a;
7'.6/U }
#)DDQ?D A9HgABhax bind();
q|B.@Ng. _}H`(d%N 29.DataGrid使用:
!M6Km(> yaC_r-%U& 添加删除确认:
->'q private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
'}Jq(ah( {
;M#D*<ucI: foreach(DataGridItem di in this.DataGrid1.Items)
noWwX {
gU@.IOg if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
8(6mH'^y {
n?^X/R.22 ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
vO;:~ }
"8[Vb#=*e }
Ip,0C8T`Q }
K]U8y$^ Qz A)HDQ 样式交替:
AdF[>Wv ListItemType itemType = e.Item.ItemType;
TY#pj qy!pD
R; if (itemType == ListItemType.Item )
fJ-8$w\uL {
t2-bw6U e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
Ga"<qmLMc e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
Zg;Ht }
oH
[-fF else if( itemType == ListItemType.AlternatingItem)
g;nPF*( {
lgCOp%> e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
OB+I.qlHP e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
sgeME^ v }
rI]n4>k{ D7N` %A8 添加一个编号列:
{<^PYN>` DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
'6>nXp?)r DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
4d]T` J$Ba*`~!! for(int i=0;i<dt.Rows.Count;i++)
/#4BUfY
f {
A.S:eQvS% dt.Rows["number"]=(i+1).ToString();
q1M16qv5 }
~F]If \b @|o^]-, DataGrid1.DataSource=dt;
'"Dgov$q DataGrid1.DataBind();
dLu3C-.( 6EX8,4c\ DataGrid1中添加一个CheckBox,页面中添加一个全选框
|)R{(AK- private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
N5GQ2V {
-}<W|r foreach(DataGridItem thisitem in DataGrid1.Items)
cW, 6MAQo {
R$40cW3` ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
^pZ\: }
=kWm9W<^ }
<j89HtCz 0 Pa\:^/6 将当前页面中DataGrid1显示的数据全部删除
RiAY>: foreach(DataGridItem thisitem in DataGrid1.Items)
sJ/?R: {
>RT02Ey> if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
R<-( {
K5q9u-7 string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
k*xgF[T
8 Del (strloginid); //删除函数
?IV3"\5 }
bQ2 '*T }
uYwJ[1C A&QO]8 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
(}n,Ou[ jJCd2O] 在Application_Start中添加以下代码:
Q2/ZO2 Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
E%C02sI AppSettings["ConnStr"].ToString();
zpd Z. \XlT 31. 变量.ToString()
}Pe0zx.Ge {oN7I'> 字符型转换 转为字符串
i5 0^%, 12345.ToString("n"); //生成 12,345.00
pVm'XP 12345.ToString("C"); //生成 ¥12,345.00
GKKf#r74 12345.ToString("e"); //生成 1.234500e+004
qS|t7* 12345.ToString("f4"); //生成 12345.0000
u($y<Q)= 12345.ToString("x"); //生成 3039 (16进制)
K%A:W 12345.ToString("p"); //生成 1,234,500.00%
hK&/A+* <$'OSN`! 32、变量.Substring(参数1,参数2);
GoNX\^A qTL] 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
miZ&9m aE(j_`L78 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
jDO[u!J6.% <SCRIPT language="javascript">
H-o>|C <!--
*L.+w-g&& function gook(pws)
<M|kOi {
ca1A9fvo frm.submit();
AA$-Lx(UJk }
dRXF5Ox5K} //-->
1x#Z}XG hqVFb.6[ </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
|,89zTk' <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
P*6B+8h"5g <tr>
D?3^>h <td>
Yvu!Q <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
\j]i"LpWb <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
"?GA}e"R <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
Em8C +EM ZVj/lOP X <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
0XBv8fg <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
Rj9YAW$ pAo5c4y!4 </td>
#B3P3\ ee.#Vhz </tr>
Vs)Pg\B? |T}Q~ </form>
[;/ydE= p#UrZKR 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。
i[_WO2 FDA``H~ 下面是获取用户输入的登陆信息的代码:
1o. O]> string name;
Quy&CV{@ name=Request.QueryString["EmailName"];
Pwn3/+"%K ]CD try
-lL(:drn {
tO$/|B74Bz int a=name.IndexOf("@",0,name.Length);
)
N*,cTE f_user.Value=name.Substring(0,a);
)DS|mM) f_domain.Value=name.Substring(a+1,name.Length-(a+1));
oz(V a! f_pass.Value=Request.QueryString["Psw"];
3,2|8Q,((! }
9K`(Ys& A~_*vcz catch
X\:;A { {
5G"DgG*< Script.Alert("错误的邮箱!");
S:IhJQ4K Server.Transfer("index.aspx");
iYi3x_A` }