1. 打开新的窗口并传送参数:
|TR
+Wn jmP;(j.| 传送参数:
',rK\&lL6 response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
(I35i!F+tY 47f\ 接收参数:
Y zmMF string a = Request.QueryString("id");
v?%vB#A^ string b = Request.QueryString("id1");
P^<to(| D`KaIqLz 2.为按钮添加对话框
=4V SbOlZ Button1.Attributes.Add("onclick","return confirm(’确认?’)");
f=S2O_Ee button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
Imq-5To# T{yJL< 3.删除表格选定记录
}WBHuVcZG int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
q1ZZ T"' string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
@S>;t)\J Ap4.c8f?Q- 4.删除表格记录警告
| :id/ private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
)%lPKp4] {
{2i8]Sp1d/ switch(e.Item.ItemType)
33&\E- Q> {
V\l@_%D[(v case ListItemType.Item :
`82Dm!V case ListItemType.AlternatingItem :
4GXS( case ListItemType.EditItem:
<z>oY2% TableCell myTableCell;
$q.}eb0 myTableCell = e.Item.Cells[14];
$TK= :8HY LinkButton myDeleteButton ;
a(ml#-M myDeleteButton = (LinkButton)myTableCell.Controls[0];
pUW7p myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
;BKU
_}k= break;
aeAx0yE[p default:
cL~YQJYp break;
^6LnB#C& }
dep"$pys> j0(jXAc;UB }
5OX[)Li !+QfQghAT 5.点击表格行链接另一页
nb6Y/`G private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
SQ/HZ {
A5%$< //点击表格打开
,H^!G\ if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
D_)/.m e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
18Ju]U }
;y50t$0
evNe6J3 双击表格连接到另一页
g-]~+7LL *-{|m1P 在itemDataBind事件中
(mKH,r if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
*;~u 5y2b {
U=U5EdN; string OrderItemID =e.item.cells[1].Text;
gU NWM^n ...
P|]r*1^5 e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
U4yl{? }
"^a"`?J 2% OAQ( 双击表格打开新一页
?)(-_N&T if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
#N'9
w . {
DH.UJ+ string OrderItemID =e.item.cells[1].Text;
3dolrW ...
Re
%dNxJ= e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
Jyr
V2Tk^ }
+lhCF*@*N %H2ios[UO ★特别注意:【?id=】 处不能为 【?id =】
o
P;6i 6.表格超连接列传递参数
,VSO;:Z <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
c"pOi& <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
5Dz$_2oM3 9cU9'r# h 7.表格点击改变颜色
x{tlC}t if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
\<09.q<8 {
`Pc<0*`a e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
!6@ 'H4cb= this.style.color=’buttontext’;this.style.cursor=’default’;");
-5ZmIlL.S }
L[,19;( u]9\_{c]Q 写在DataGrid的_ItemDataBound里
r@bh,U$ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
T#*H {
22U`1AD3U e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
ASre@pW this.style.color=’buttontext’;this.style.cursor=’default’;");
5,g +OY=\ e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
s(J>yd= }
FF!PmfF' ela^L_N hF <c:H u{D 8.关于日期格式
evYn} o)^Wz 日期格式设定
jX(hBnGW DataFormatString="{0:yyyy-MM-dd}"
( }Bb=~ GQ>0E 我觉得应该在itembound事件中
2Q5 @2jT e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
Hbd>sS w`V6vYd@ 9.获取错误信息并到指定页面
AX<f$%iqD Y0A(-" 不要使用Response.Redirect,而应该使用Server.Transfer
;FRUB@: uLWu. Vx e.g
.kn2M&P>= // in global.asax
y$SUYG'v protected void Application_Error(Object sender, EventArgs e) {
|5O>7~Tp if (Server.GetLastError() is HttpUnhandledException)
$~W5! m Server.Transfer("MyErrorPage.aspx");
}u=Oi@~ s.Ai_D //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
6$'*MpYF4 }
3}F>t{FDk El;"7Qn 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
Jou*e% tqCkqmyC 10.清空Cookie
' BS.:^ Cookie.Expires=[DateTime];
l&'q+F Response.Cookies("UserName").Expires = 0
q!@!eC[b ZH9Fs'c= 11.自定义异常处理
7bihP@I! //自定义异常处理类
ZDgT"53 using System;
,m5i(WL using System.Diagnostics;
p\lR1 UU MB"3e namespace MyAppException
E5M/XW\E6 {
!]82$ /// <summary>
C&MqH.K /// 从系统异常类ApplicationException继承的应用程序异常处理类。
t'@mUX:-A /// 自动将异常内容记录到Windows NT/2000的应用程序日志
J ~3m7 /// </summary>
t^FE]$, public class AppException:System.ApplicationException
VN!nef
{
FpA t public AppException()
Ui`{U {
-OlrA{=c_ if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
~uty<fP }
/pPH D] PQ[?zNrSV public AppException(string message)
4Z~ nWs {
-bzlp7q* LogEvent(message);
H>%AK'' }
$["HC-n?.k j2UQQFh public AppException(string message,Exception innerException)
=2Yt[8'; {
YZ4`b- LogEvent(message);
1ruI++P if (innerException != null)
"g&f:[a/ {
i#t-p\Tcz LogEvent(innerException.Message);
)Ak#1w&q }
R^o535pozc }
nH6SA1$kW Pd"c*n&9 //日志记录类
a'?;;ZC- using System;
abR<( H12 using System.Configuration;
cr{yy :D using System.Diagnostics;
sIgTSdk using System.IO;
]B=*p0~j^n using System.Text;
O8A1200 using System.Threading;
f(D'qV T{ uH%b rbrU namespace MyEventLog
PR:B6 F8 {
A+* lV*@0 /// <summary>
L,y
q=%h| /// 事件日志记录类,提供事件日志记录支持
8xgBNQdPT /// <remarks>
$Z#~wsw /// 定义了4个日志记录方法 (error, warning, info, trace)
}%/mPbd# /// </remarks>
XNJZ~Mowb /// </summary>
_uMG?Sbx public class ApplicationLog
N'WTIM3W {
klT?h[I! /// <summary>
`D~oY= /// 将错误信息记录到Win2000/NT事件日志中
l_Lz9k /// <param name="message">需要记录的文本信息</param>
*af\U3kx /// </summary>
G&{yM2:E public static void WriteError(String message)
uhfK\.3 {
{\`ttc> WriteLog(TraceLevel.Error, message);
D!,5j_,j% }
>j hcSvM6 mnK<5KLg1 /// <summary>
JR.)CzC /// 将警告信息记录到Win2000/NT事件日志中
xOj#%; /// <param name="message">需要记录的文本信息</param>
v.Bwg7R3 /// </summary>
C?gqX0[ q public static void WriteWarning(String message)
HJ7A/XW {
8$_{R!x WriteLog(TraceLevel.Warning, message);
]?@ [Ny=0 }
DPxx9lN_rx QjY}$ /// <summary>
7CH&n4v /// 将提示信息记录到Win2000/NT事件日志中
KJec/qca /// <param name="message">需要记录的文本信息</param>
}'eef"DJ9 /// </summary>
a~0 ~Y y public static void WriteInfo(String message)
N'ER!=l) {
l+"p$iZs WriteLog(TraceLevel.Info, message);
5_E8
RAG }
@u9L+*F
/// <summary>
?5nEmG|kO /// 将跟踪信息记录到Win2000/NT事件日志中
?DUim1KG /// <param name="message">需要记录的文本信息</param>
HZRFE[ 9nb /// </summary>
L?N&kzA public static void WriteTrace(String message)
aj;x:UqpJ {
MSS[-} WriteLog(TraceLevel.Verbose, message);
?YL JXq }
F8-GnTxa SED52$zA /// <summary>
Wn@oG@}~ /// 格式化记录到事件日志的文本信息格式
c8X;4
My /// <param name="ex">需要格式化的异常对象</param>
>2{Y5__+e /// <param name="catchInfo">异常信息标题字符串.</param>
q@bye4Ry%W /// <retvalue>
$\J5l$tU /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
p-.kBF /// </retvalue>
O^8ZnN_+ /// </summary>
U?Jk public static String FormatException(Exception ex, String catchInfo)
Gkuqe3 {
e7;7TrB. StringBuilder strBuilder = new StringBuilder();
lu"0\}7X if (catchInfo != String.Empty)
I#(lxlp"Ho {
<?7qI8 5OT strBuilder.Append(catchInfo).Append("\r\n");
IsI5c }
yHw @Z strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
IN bV6jZL return strBuilder.ToString();
D}y W:Pi' }
3xs<w7 Lf5zHUH /// <summary>
MQwxQ{ /// 实际事件日志写入方法
Gb`)d /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
S2'a i /// <param name="messageText">要记录的文本.</param>
zBy} > Jx /// </summary>
n<8WjrK private static void WriteLog(TraceLevel level, String messageText)
=|E
" {
&wK:R,~x6 try
N E9,kWI {
qK.(wFx EventLogEntryType LogEntryType;
68u?}8} switch (level)
uxTgK'3 {
<7U~0@<Y case TraceLevel.Error:
b&[".ibN1 LogEntryType = EventLogEntryType.Error;
Bp7p X break;
Li5&^RAo|J case TraceLevel.Warning:
xS1n,gTA LogEntryType = EventLogEntryType.Warning;
USyc D` break;
)v;O2z case TraceLevel.Info:
B=d<L^ LogEntryType = EventLogEntryType.Information;
`YqtI/-w break;
6o#/[Tz case TraceLevel.Verbose:
<)T| HKx LogEntryType = EventLogEntryType.SuccessAudit;
>(a35 b$ break;
n3~axRPO default:
I9qZE=i LogEntryType = EventLogEntryType.SuccessAudit;
_rYW|*cIF break;
s;TB(M~i[ }
(%L/|F_ >M2~p&Si EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
!}h)
| //写入事件日志
>S:(BJMo eventLog.WriteEntry(messageText, LogEntryType);
Qz|T0\=V ~7ZZb*].( }
zG_n x3 catch {} //忽略任何异常
<h:xZtz }
nvrh7l9nX } //class ApplicationLog
7!AyL w }
j<(E%KN3 0V<kpC,4 12.Panel 横向滚动,纵向自动扩展
jOfG}:>e\ <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
6ncwa<q5 Nksm&{=6S 13.回车转换成Tab
]6Iu\,#J <script language="javascript" for="document" event="onkeydown">
>}
2C,8N if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
ys=}
V| event.keyCode=9;
D?_K5a&v, </script>
Qg/FFn^Kg* l0,VN,$Yl onkeydown="if(event.keyCode==13) event.keyCode=9"
y5eEEG6 B%\&Q@X 14.DataGrid超级连接列
_\\Al v. DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
]\^O(BzB Nt$4; 15.DataGrid行随鼠标变色
]YI9 private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
u1X^#K$nu' {
9o>D
Uc
if (e.Item.ItemType!=ListItemType.Header)
Im~DK {
Z4/D38_ e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
&/UfXKr e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
+45SKu= }
c~(61Sn] }
q{&c?l*2 oH=?1~e 16.模板列
Aeh# <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
j#p;XI <ITEMTEMPLATE>
zk{d*gN <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
"e"#k}z9 </ITEMTEMPLATE>
bss2<mqlH </ASP:TEMPLATECOLUMN>
2|bt"y-5r kfnh1|D=aY <ASP:TEMPLATECOLUMN headertext="选中">
X?t;uZI^ <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
$(D>v!dp <ITEMTEMPLATE>
0~U%csPHt <ASP:CHECKBOX id="chkExport" runat="server" />
f\oW<2k]~ </ITEMTEMPLATE>
mce qZv <EDITITEMTEMPLATE>
B{Vc-qJ <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
|^Y"*Y4*h </EDITITEMTEMPLATE>
3zh:~w_ </ASP:TEMPLATECOLUMN>
:8@)W<>% 2p, U ^h 后台代码
p[P#! protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
f>6{tI5X {
lkT :e)w //改变列的选定,实现全选或全不选。
{*+J`H_G2a CheckBox chkExport ;
Chnt)N`/B4 if( CheckAll.Checked)
~NIhS! {
CqEbQ>? foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
&fB=&jc*j {
GPLop/6
chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
TXi| chkExport.Checked = true;
:7 LA/j }
m?Y-1!E0 }
8/>.g.] else
EY"of[p {
zp8x/,gwF foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
P+f}r^4} {
Kfb(wW chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
[j/|)cj chkExport.Checked = false;
mQ`atFz:Z }
wY ItG"+6 }
T9$~tv,5F }
R*bx&..< sPQjB[ 17.数字格式化
[z!m r2#G|/=@ 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
lUjZ=3"' <%#Container.DataItem("price","{0:¥#,##0.00}")%>
_<f%==
I' [4#HuO@h int i=123456;
>;9g`d string s=i.ToString("###,###.00");
#$W5)6ch 1"CWEL`i 18.日期格式化
?rOj?J9 9BZ B1oX 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
X[.%[G|oj} ~OX\R"aZBW 显示为: 2004-8-11 19:44:28
p+~Imf-Jk ,Gv}N& 我只想要:2004-8-11 】
!IR
cv
a <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
_}[WX[Le{ AsE77AUA 应该如何改?
r1
:TM|5L wA$?e} 【格式化日期】
^J> m4` _k]R6V: 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
R5e[cC8o. l/(~Kf9eQG 【日期的验证表达式】
;N.dzH2yA ggPGKY-b= A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
\h'7[vkr ^((\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})))?$
uT=r*p(v S8AbLl9G@> B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
AQ$)JPs ^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$
ZgEV-.>P bp'%UgA)1 【大小写转换】
5rLx
b HttpUtility.HtmlEncode(string);
fUf1G{4 HttpUtility.HtmlDecode(string)
%iNgHoH F-ZTy"z 19.如何设定全局变量
5)Z=FUupA~ qnyacI Global.asax中
nmn/4>
GpTZp#~; Application_Start()事件中
.$peq >dK0&+A 添加Application[属性名] = xxx;
G.O;[(3ab neu<zSS 就是你的全局变量
Q^va+O !+$QN4{9 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
.Bkfe{^ l4$ sku- HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
Eg1TF oIWl 9j^rFG!n 【ASPNETMENU】点击菜单项弹出新窗口
CC^]Y.9 <EqS
,cO^ 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
Dn<3#V <?xml version="1.0" encoding="GB2312"?>
)6%*=- <MenuData ImagesBaseURL="images/">
e=h-}XRC <MenuGroup>
!D1#3?L <MenuItem Label="内参信息" URL="Infomation.aspx" >
LodP,\T <MenuGroup ID="BBC">
e%pohHI <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
HdlOGa6C <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
G0h&0e{w ......
KsIHJr7- ,k_ b-/ 最好将你的aspnetmenu升级到1.2版
<=_!8A BYdGK@ouk 21.读取DataGrid控件TextBox值
8aHE=x/TL foreach(DataGrid dgi in yourDataGrid.Items)
~Qif-|[V {
qPz_PRje TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
qGN>a[D tb.Text....
bx2<WdLyT }
bn|HvLQ"1 ncadVheKt 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?
6?5dGYAX< !L;_f'\)6 〖思归〗
vG6*[c8 <asp:TemplateColumn HeaderText="数量">
lFf>z}eLy <ItemTemplate>
mI<s f?. <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
"
]k}V2l onkeyup="javascript:DoCal()"
';\norx; />
shdzkET8N WYRC_U7 <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
eK(k;$4\^Y </ItemTemplate>
c]1AM)xo </asp:TemplateColumn>
tc.|mIvw o_=4Ex
" <asp:TemplateColumn HeaderText="单价">
@Oz3A<M <ItemTemplate>
P=}dR&gk' <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
sa<\nH$_X onkeyup="javascript:DoCal()"
;~r- P$kCY />
4sSw7` _l]
0V
g` <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
D]fgBW- .nEMd/pX </ItemTemplate>
Ar~<l2,{r </asp:TemplateColumn>
d]K8*a%[- ,Gbc4x <asp:TemplateColumn HeaderText="金额">
Ha]vG@?+ <ItemTemplate>
416}# Mk <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
Pbbi*&i </ItemTemplate>
Qt\:A!'jw </asp:TemplateColumn><script language="javascript">
9a@S^B> function DoCal()
P//nYPyzg {
q;QasAQS`p var e = event.srcElement;
yz,_\{} var row = e.parentNode.parentNode;
'`gnJX
JO var txts = row.all.tags("INPUT");
S['%> if (!txts.length || txts.length < 3)
]qZj@0#7n return;
W,,3@: m4uh<;C~ var q = txts[txts.length-3].value;
dm_Pz\* var p = txts[txts.length-2].value;
-#;ZZ\fdj %L)QTv/ if (isNaN(q) || isNaN(p))
BE&8E\w return;
*1-0s*T HD{u#~8{ q = parseInt(q);
dg*xo9Xi` p = parseFloat(p);
EJz!#f~ .
WJ txts[txts.length-1].value = (q * p).toFixed(2);
Q~Nq5[ }
+B8oW3v# ) </script>
bUy!hS;s ;B2kot7 rFt+Y}) gkTwGI+w -;6uN\gq 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。
r$M<vo6C page_load
^; U}HAY page.smartNavigation=true
\Js*>xA
jp}.W 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
ldU ><xc2 private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
ZvXw#0)v {
-;8 a* F for(int i=0;i<e.Item.Cells.Count-1;i++)
c3rj
:QK6I if(e.Item.ItemType==ListItemType.EditType)
opn6 C ) {
wNl6a9# e.Item.Cells.Attributes.Add("Width", "80px")
*'-C/ }
(I;81h`1G }
"p+oi@ iM9k!u FE 26.对话框
O1X) private static string ScriptBegin = "<script language=\"JavaScript\">";
*j <#5=l private static string ScriptEnd = "</script>";
U+ Yu_=o{ 6
3PV R" public static void ConfirmMessageBox(string PageTarget,string Content)
;InMgo, {
&'DR`e O) string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
D8B\F5..c# ]RadwH"0! ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
.*595SuF \%}]wf} Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
Kx[+$Qt ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
)B-[Q#*A- //Response.Write(strScript);
#@V<{/;49 }
.2rpQa/h 8eh3K8tL# 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
yO\bVu5V #jxPh!%9 1.1 取当前年月日时分秒
p}I\H
^"8+ currentTime=System.DateTime.Now;
D'D IC *>EV4Hl 1.2 取当前年
Mw+
l>92 int 年= DateTime.Now.Year;
2.@IfBF6 Z 6WNMQ1: 1.3 取当前月
#U3q
+d+^ int 月= DateTime.Now.Month;
RZqMpW Xa"I 1.4 取当前日
C[ KMaB int 日= DateTime.Now.Day;
_~>WAm< }a UQ#x 1.5 取当前时
y'oH>l+n int 时= DateTime.Now.Hour;
\ ux{J +#UawYLJ 1.6 取当前分
[z_ztK1 int 分= DateTime.Now.Minute;
xu]Kt+QnSk _\@zq*E 1.7 取当前秒
,N_V(Cx5pt int 秒= DateTime.Now.Second;
+uNMyVH p?
VDBAx 1.8 取当前毫秒
wJgH15oB int 毫秒= DateTime.Now.Millisecond;
SuV3$-);z x=\W TC 28.自定义分页代码:
hSps9*y 0;w 4WJJ 先定义变量 :
siV]NI':| public static int pageCount; //总页面数
sQrM"i0Y> public static int curPageIndex=1; //当前页面
,k@iNid
"ZNy*.G|[ 下一页:
<ZO+e*4 if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
FKf2Q&2I {
x>4p6H{]0' DataGrid1.CurrentPageIndex += 1;
6 RSit curPageIndex+=1;
ZRr.kN+F }
]haQ#e}WH '['x'G50 bind(); // DataGrid1数据绑定函数
vQoZk, 931GJA~g 上一页:
o~xGE 6A*" if(DataGrid1.CurrentPageIndex >0)
d,'gh4C {
4]
u\5K- DataGrid1.CurrentPageIndex += 1;
jQfnc:' curPageIndex-=1;
NSzTl-eS }
80gOh: yS?5&oMl bind(); // DataGrid1数据绑定函数
ET*:iioP GJ?J6@| 直接页面跳转:
'w/S6j int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
vMJ_n=Vf ]h`d>#Hw! if(a<DataGrid1.PageCount)
z 7cA5'c {
a=B $L6*4 this.DataGrid1.CurrentPageIndex=a;
%82:?fq }
OwDwa~ xj]^<oi< bind();
%bG\ anKflt3 29.DataGrid使用:
?ZhBS3L TOvsW<cM 添加删除确认:
nF,zWr[x private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
),%@X {
mSEX?so=[ foreach(DataGridItem di in this.DataGrid1.Items)
LS-_GslE7\ {
['6Sq@c) if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
NUuIhB+ {
M,r8 No ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
u@Z6)r' }
r. rzU }
tp\d:4~R }
hfvC-f97L au+:-Khm 样式交替:
]%G#x ListItemType itemType = e.Item.ItemType;
[KW)z#`* zCS }i_ p if (itemType == ListItemType.Item )
cw_B^f8^ {
x%dVD e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
eQfXUpk3@I e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
T&<ee|t@{ }
y"_rDj` else if( itemType == ListItemType.AlternatingItem)
a]8W32 {
w`/~y
e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
szOa yAS e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
O/&Qzt }
m_;XhO 16~5 ;u 添加一个编号列:
xaq/L:I< DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
Q:ql~qew DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
}Os7[4RW k~QmDq for(int i=0;i<dt.Rows.Count;i++)
A'n7u'6= {
W$z^U)|t dt.Rows["number"]=(i+1).ToString();
NR^3
1&}It }
n(Um/ A#F6~QX(.9 DataGrid1.DataSource=dt;
u3jLe=Y'\ DataGrid1.DataBind();
!G'wC0 I5Rd~-="G DataGrid1中添加一个CheckBox,页面中添加一个全选框
6>b#nFVJ private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
sei%QE]!/ {
[E9_ZdBT foreach(DataGridItem thisitem in DataGrid1.Items)
cNy*< Tv {
l5enlYH ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
k/Q8:qA }
1_@vxi~aW_ }
lvR>%I0`* JUq7R%"h6 将当前页面中DataGrid1显示的数据全部删除
{Bpu-R&T foreach(DataGridItem thisitem in DataGrid1.Items)
>GDf*
ox[ {
vU#>3[aC if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
\`*]}48Z {
h~=~csya: string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
:p$Q3 Del (strloginid); //删除函数
_|COnm }
g(o^'f }
"'Q~&B;@ +4[Je$qYa 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)
0.U-
tg0 (J
j'kW6G6 在Application_Start中添加以下代码:
Z v 7}C Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
1<0Z@D~F AppSettings["ConnStr"].ToString();
B2)5Z] <II>io; 31. 变量.ToString()
kr44@!s+' YgQb(umK 字符型转换 转为字符串
y@ c[S; 12345.ToString("n"); //生成 12,345.00
tR?)C=4, 12345.ToString("C"); //生成 ¥12,345.00
{CgF{7` 12345.ToString("e"); //生成 1.234500e+004
}%3i8e 12345.ToString("f4"); //生成 12345.0000
[q|8.>sB 12345.ToString("x"); //生成 3039 (16进制)
w6AG:u 12345.ToString("p"); //生成 1,234,500.00%
V'l9fj*E Rvj[Csgi 32、变量.Substring(参数1,参数2);
Se!B,'C% 0.^67' 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);
aOmQ<N]a @3?dI@i( 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)
=vb 'T <SCRIPT language="javascript">
y*-D <!--
)jw!,"_4 function gook(pws)
?oU5H {
NV\{$*j(|J frm.submit();
6MQyr2c }
v;s^j //-->
o"qG'\x aBKJd </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
[-nPHmZV[ <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
75c\.=G9q< <tr>
TTSq }sb} <td>
Ge*N%=MX8 <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
4B-+DH>{6 <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
Fw%S%*B8g <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
Bdib)t[ R`%O=S*] <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
0BP=SCi <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
k.%FGn'fR ~01t_Xp qc </td>
[4mIww% Ro#O{ </tr>
LUA<N: yY80E[v </form>
]!WD">d: 7fW$jiw 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。
Nbt.y 'd M{X; H'2 下面是获取用户输入的登陆信息的代码:
4` :Eiik&p string name;
#D%l;Ae name=Request.QueryString["EmailName"];
t#nRa Pzp \*30E<;C_
try
3Zm;:v4y {
hhJs$c( int a=name.IndexOf("@",0,name.Length);
BHS8MV L@ f_user.Value=name.Substring(0,a);
@KU^B_{i f_domain.Value=name.Substring(a+1,name.Length-(a+1));
&hIr@Gi@ch f_pass.Value=Request.QueryString["Psw"];
-8sB\E }
gzp]hh@4 GAlM:> catch
@[O|n)7 {
P2
z~U Script.Alert("错误的邮箱!");
\WM"VT Server.Transfer("index.aspx");
+VO(6Jn }