1. 打开新的窗口并传送参数:
+kZW:t!- u
ioBId 传送参数:
G !;<#|a response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
i5CBLv AA~6r[*~ 接收参数:
KV]8o' string a = Request.QueryString("id");
d'*:2;)g^ string b = Request.QueryString("id1");
\8iWcqJktN $|n#L6k 2.为按钮添加对话框
9 ,>u, Button1.Attributes.Add("onclick","return confirm(’确认?’)");
} 0x'm button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
vY'E+M"+@ .F@0`*#rE~ 3.删除表格选定记录
0zr Zrl int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
mrId`<L5l{ string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
.E&-gXJ4 ^E= w3g& 4.删除表格记录警告
$Oi@B)=4d+ private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
x/^,{RrPk {
w//L2. switch(e.Item.ItemType)
TF- k|##G {
Avr2MaY{h case ListItemType.Item :
0
V3`rK case ListItemType.AlternatingItem :
I'>r case ListItemType.EditItem:
k-XE|v TableCell myTableCell;
a^QyYX}\qR myTableCell = e.Item.Cells[14];
5fDnr&DR LinkButton myDeleteButton ;
NZ=`iA8)X myDeleteButton = (LinkButton)myTableCell.Controls[0];
&(t/4)IZox myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
:$?^ID break;
< rqFBq8 default:
4;.y>~z break;
uIb,n5 }
\g<=n&S? ;8J+Q0V }
E[E7Gsmq V VdetY\ 5.点击表格行链接另一页
6|AD]/t^K private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
.uwD;j
+# {
5^7q
2". //点击表格打开
:UDT!
5FNO if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
C=uYX" e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
[K4wd%+ }
AHl1{*
[ 5}"@$.{i 双击表格连接到另一页
Vp~c$y+ ?OFl9%\ V 在itemDataBind事件中
:d ,]BB if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
mpysnKH {
=%+O.
string OrderItemID =e.item.cells[1].Text;
G.[,P~yy. ...
L}x,>hbT e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
k}h\RCy%f }
\WN,. /
Hg/) 双击表格打开新一页
*%,{<C,Y if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{} gr\ {
"-HmXw1+t string OrderItemID =e.item.cells[1].Text;
&)y$XsSMW ...
@f z!]/ e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
SV}C]< }
j68_3zpl (yB)rBh>n ★特别注意:【?id=】 处不能为 【?id =】
,9@JBV%_ 6.表格超连接列传递参数
WXzSf.8p| <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
4'
MmT' <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
zXRq) ;s swGp{wJ 7.表格点击改变颜色
6+s10? if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
b)1v:X4Bv= {
8nSEAr~ e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
ccPTJ/%$ this.style.color=’buttontext’;this.style.cursor=’default’;");
jqeR{yo&0b }
8uZM%7kI6+ t5"g 9`A L 写在DataGrid的_ItemDataBound里
N">4I) if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
RL|d-A+; {
yur5"$n e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
V@C8HTg
this.style.color=’buttontext’;this.style.cursor=’default’;");
4
[K"e{W3 e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
!`h^S)$ }
AIU=56+I\ 9>I&Z8J$M CNkI9>L=W` 8.关于日期格式
Q 2mTu[tx rTmVHt 日期格式设定
Xvr7qowL DataFormatString="{0:yyyy-MM-dd}"
$]`rWSYtv` RNMd,?dj 我觉得应该在itembound事件中
|@*3
nb8 e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
99G'`NO _yN&+]c 9.获取错误信息并到指定页面
`:>N.9'o JOUZ"^v 不要使用Response.Redirect,而应该使用Server.Transfer
t3(~aH p`I[3/$3 e.g
n)t'?7 // in global.asax
W_bp~Wu
protected void Application_Error(Object sender, EventArgs e) {
@yj$ if (Server.GetLastError() is HttpUnhandledException)
L}M%z9K`h Server.Transfer("MyErrorPage.aspx");
E3"j7y[S >.o<}!FW //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
kE`Fg(M }
uy'qIq ? l>Ra0 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
B{hV|2 lK%)a +2 10.清空Cookie
$No^\.mV Cookie.Expires=[DateTime];
|QHIB?C?` Response.Cookies("UserName").Expires = 0
F"| ; k((kx: 11.自定义异常处理
GvTA/zA //自定义异常处理类
7I=vgT1F using System;
>v'@p using System.Diagnostics;
\ !qe@h< ,~G:>q$ad namespace MyAppException
Ov~vK\ {
m`9P5[m#x> /// <summary>
U:q4OtiP /// 从系统异常类ApplicationException继承的应用程序异常处理类。
l[Ko> /// 自动将异常内容记录到Windows NT/2000的应用程序日志
Y;1s=B9 /// </summary>
ZYLPk<< public class AppException:System.ApplicationException
cMoBYk {
9ePR6WS4 public AppException()
/:ju/~R} {
95.s,'0 if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
^5q}M' }
-#`tS nU23D@l public AppException(string message)
RV>n Op}R {
T?KM}<$(O LogEvent(message);
lFV\Go }
d;g]OeF \F9HsR6 public AppException(string message,Exception innerException)
^0(`:* {
ZK`x(h{p) LogEvent(message);
h3(B7n7 if (innerException != null)
}_fVv{D
{
LM*m>n* LogEvent(innerException.Message);
50^CILKo7 }
6Tg'9|g }
JpZ3T~Wrf yHs'E4V`$ //日志记录类
"u3 N9 using System;
$%zM Z using System.Configuration;
97n,^t2F\ using System.Diagnostics;
D6:"k
2 using System.IO;
-c
p)aH) using System.Text;
{PkPKp using System.Threading;
{W%/?d9m t]6
4= namespace MyEventLog
t<yOTVah {
IRbZ ;*3dO /// <summary>
J\Z\q /// 事件日志记录类,提供事件日志记录支持
Bw4PxJs- /// <remarks>
6D29s]h2 /// 定义了4个日志记录方法 (error, warning, info, trace)
RQCKH]&! /// </remarks>
yG:Pg MrB /// </summary>
,,~|o3cfq public class ApplicationLog
/S`d?AV {
%5/h;4
/// <summary>
9m}c2:p /// 将错误信息记录到Win2000/NT事件日志中
D1~3 3; /// <param name="message">需要记录的文本信息</param>
4Dv42fO /// </summary>
vLQh r&I public static void WriteError(String message)
j6&7tK, {
NplkhgSj WriteLog(TraceLevel.Error, message);
*!u
a? }
CDGN}Q2 _ J}s)#va9R /// <summary>
_.BX#BIF /// 将警告信息记录到Win2000/NT事件日志中
r&D&xsbQ /// <param name="message">需要记录的文本信息</param>
(Q6}N'T /// </summary>
Ng1uJa[k!d public static void WriteWarning(String message)
Z{
b($po {
oWdvpvO WriteLog(TraceLevel.Warning, message);
P*6&0\af| }
APY*SeIV @(s"5i.`) /// <summary>
'E~[I"0 /// 将提示信息记录到Win2000/NT事件日志中
hFr?84sAd /// <param name="message">需要记录的文本信息</param>
@G0j/@v /// </summary>
}|4dEao\ public static void WriteInfo(String message)
Avi8&@ya {
^FN(wvqb8 WriteLog(TraceLevel.Info, message);
VU
8~hF }
l} UOg
/// <summary>
|csR"DOqz /// 将跟踪信息记录到Win2000/NT事件日志中
b+ J) /// <param name="message">需要记录的文本信息</param>
+)l6%QKcW /// </summary>
~$Pz`amT| public static void WriteTrace(String message)
j?'It`s {
QKtTy>5 WriteLog(TraceLevel.Verbose, message);
BjIKs~CT }
>6"u{Qmr 'hl4cHk14 /// <summary>
Ye) F{WqZ# /// 格式化记录到事件日志的文本信息格式
a5# B&|#q /// <param name="ex">需要格式化的异常对象</param>
kZ3w 2=x3v /// <param name="catchInfo">异常信息标题字符串.</param>
T?'Vb /// <retvalue>
a'2^kds /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
+$H`/^a. /// </retvalue>
M;K%=l$NG /// </summary>
PK<+tIm\ public static String FormatException(Exception ex, String catchInfo)
p2:>m\ {
I,d5Y3mC StringBuilder strBuilder = new StringBuilder();
#0;ULZ99aH if (catchInfo != String.Empty)
9k[>(LC {
NLA/XZ strBuilder.Append(catchInfo).Append("\r\n");
:gJ?3LwTf }
*eonXJYD
strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
oWo/QNw9 return strBuilder.ToString();
}L.&@P< }
Wy`ve~y EFNi# D8s /// <summary>
N\9Wxz$ /// 实际事件日志写入方法
pZg}7F{$ /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
c$skLz /// <param name="messageText">要记录的文本.</param>
$06[D91' /// </summary>
ckTk2xPQ private static void WriteLog(TraceLevel level, String messageText)
aX$Q}mgb {
^E^Cj;od@ try
p\ }Ep {
hPB^|#} EventLogEntryType LogEntryType;
-]K9sy)I switch (level)
:]hNw1e {
$|V@3`0 case TraceLevel.Error:
J>XMaI})U LogEntryType = EventLogEntryType.Error;
B<" `<oG@| break;
Lm{qFu case TraceLevel.Warning:
g VPtd[r LogEntryType = EventLogEntryType.Warning;
TC+L\7 break;
HDY2<Hzc case TraceLevel.Info:
o'SZsG LogEntryType = EventLogEntryType.Information;
}pMd/|A, break;
NM{/rvM case TraceLevel.Verbose:
\_w>I_=F LogEntryType = EventLogEntryType.SuccessAudit;
^f%hhpV@ break;
Jb (CH4|7 default:
0mMoDJRy LogEntryType = EventLogEntryType.SuccessAudit;
,&5\` break;
KW1b #g%Z }
p?v. 42R:z NlG~{rfI EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
CVy\']
//写入事件日志
Ap<kK0#h eventLog.WriteEntry(messageText, LogEntryType);
0Kytg\p} u9zEhfg8 }
nign"r catch {} //忽略任何异常
G8t9Lx }
'OTQiI^t= } //class ApplicationLog
9k.5'# }
"-T[D9(A ^P}jn`4 12.Panel 横向滚动,纵向自动扩展
LN0pC}F <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
y<5RV>"Vg R9z:K_d, 13.回车转换成Tab
x=M%QFe <script language="javascript" for="document" event="onkeydown">
)4MM>Q if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
[`4 event.keyCode=9;
"\k|Z </script>
YLsOA`5X j"F?^0aR,Q onkeydown="if(event.keyCode==13) event.keyCode=9"
?` lD|~ -Lhq.Q*a 14.DataGrid超级连接列
>'1[Bh DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
BICG@ 4^Y{ BS fF 15.DataGrid行随鼠标变色
[o"<DP6w private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
U
#C@&2 {
4=~+Bz if (e.Item.ItemType!=ListItemType.Header)
{ MV,>T_ {
[} zzG@g,J e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
C<Z{G%Qm e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
4`GOBX1b.y }
bEKh U\@=J }
2{Y~jYt{h D"V(A \sZ 16.模板列
p9>1a j2a <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
~ \]?5
nj <ITEMTEMPLATE>
SF=TG84< <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
@V&c=8)8 </ITEMTEMPLATE>
QR2S67- </ASP:TEMPLATECOLUMN>
xG(xG%J GEK7q< <ASP:TEMPLATECOLUMN headertext="选中">
_a#k3r <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
j'k
< <ITEMTEMPLATE>
Mbp7%^E"A <ASP:CHECKBOX id="chkExport" runat="server" />
Yb=77(QV </ITEMTEMPLATE>
%s! |,Cu <EDITITEMTEMPLATE>
Bd]k]v+ <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
eaC%&k </EDITITEMTEMPLATE>
B<Q)z5KK </ASP:TEMPLATECOLUMN>
k^Q.lb
{ ]OtnekkK$ 后台代码
+Bf?3 5LP protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
=C2KHNc {
gYCr,-_i //改变列的选定,实现全选或全不选。
mqj-/DN6* CheckBox chkExport ;
5Xf]j=_ if( CheckAll.Checked)
nwp(% fBo {
D4b-Y[/" foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
Pa6pq;4St {
GsmXcBzDw2 chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
|AH>EXhv chkExport.Checked = true;
dU#-;/}o }
9QaE)wt }
=ecLzk"+F else
qJag>OY {
&JXb) W foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
Y
hQ)M5 {
?G5,}% chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
f~F{@),acZ chkExport.Checked = false;
TF%Xb>jy[ }
8PzGUn;\ }
!b"?l"C+u }
8L,=E ap W|D
kq 17.数字格式化
|mP};&b n m<?oI*\ 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
PJcfiRa'jQ <%#Container.DataItem("price","{0:¥#,##0.00}")%>
<^\rv42'(2 (c>g7d<>n int i=123456;
F~8'3!<9 string s=i.ToString("###,###.00");
SIV !8mz puJB&u"4L 18.日期格式化
]q.%_ CVWT>M< 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
JwB'B :{#O 显示为: 2004-8-11 19:44:28
&s='$a;4 y-db CYMc 我只想要:2004-8-11 】
4/Y?e UQ <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
+?Ii=* 7n c3 O/#* 应该如何改?
F)(^c |L8
[+_m 【格式化日期】
U\p`YZ Vw1>d+<~-) 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
]:Gy]qkO RkE)2q[5 【日期的验证表达式】
R(d<PlZ ZQ]qJDk A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
4LKpEl.= ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
GLn=*Dh# Sv T0%2 B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
Jv8:GgSg ^\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]))$
z_!IA
] v F(yR\)!C 【大小写转换】
E.h HttpUtility.HtmlEncode(string);
=I`S7oF HttpUtility.HtmlDecode(string)
~;3yjO)l?) ZC N}iQu4 19.如何设定全局变量
(dq_,LI r8s>s6vm Global.asax中
P |tyyjO Nvgi&iBh8 Application_Start()事件中
1zPS#K/3 ENuL!H>;* 添加Application[属性名] = xxx;
!0W(f.A{K J'}+0mln 就是你的全局变量
~HB#7+b .; F<X\_ 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
)8A.Wg4S;c QPVi& *8_ HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
EB}B75)x J\y^T3Z 【ASPNETMENU】点击菜单项弹出新窗口
5@2Rl>B$ SE+hB 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
zR<{z <?xml version="1.0" encoding="GB2312"?>
tnJ7m8JmC <MenuData ImagesBaseURL="images/">
g{V(WyT@ <MenuGroup>
@P7'MiP]K <MenuItem Label="内参信息" URL="Infomation.aspx" >
J@2jx4 <MenuGroup ID="BBC">
l zFiZx <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
AkQ(V <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
dHDtY$/_ ......
|Q/LC0? 6{I7)@>N 最好将你的aspnetmenu升级到1.2版
C~h#pAh f6Y?),` 21.读取DataGrid控件TextBox值
';3>rv_ foreach(DataGrid dgi in yourDataGrid.Items)
ZWCsrV*; {
KNeVSZT TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
B~I ]3f tb.Text....
j\>&]0-Iq }
bo=H-d| }!iopu 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
Q#% LIkeq { 4j<X5V 〖思归〗
7KlL%\ <asp:TemplateColumn HeaderText="数量">
i3)3.WK^ <ItemTemplate>
>)WE3PT/O" <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
2E-Kz?,:[ onkeyup="javascript:DoCal()"
w:
BJ4bi= />
P'Y(f!% dEDhdF#f <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
&E]) sJ0 </ItemTemplate>
&b@_ah+f </asp:TemplateColumn>
bSIY|/d+ 1O Ft}>1 <asp:TemplateColumn HeaderText="单价">
e)HFI|> <ItemTemplate>
{Vu=qNx <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
z"<S$sDh onkeyup="javascript:DoCal()"
570ja7C: />
#bd=G(o~6 t 9(,JC0 <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
5i6Ji( 46f-po_ </ItemTemplate>
W
_[9 </asp:TemplateColumn>
Ls2,+yo]> F42^Uoaz <asp:TemplateColumn HeaderText="金额">
d*u3]&?x&f <ItemTemplate>
Wgf
f+7k <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
*fY*Wy9 </ItemTemplate>
#IppjaPl8 </asp:TemplateColumn><script language="javascript">
p!E*ANwX function DoCal()
R UCUEo63 {
x6aVNH= var e = event.srcElement;
~e|E5[-i var row = e.parentNode.parentNode;
tG]W!\C'h var txts = row.all.tags("INPUT");
iu=@h>C if (!txts.length || txts.length < 3)
#pWy%U return;
0]ai*\,W7~ oJV dFE var q = txts[txts.length-3].value;
yodhDSO5i var p = txts[txts.length-2].value;
MNh:NFCRA Z2;~{$&M+ if (isNaN(q) || isNaN(p))
L]YJ#5 return;
W<#Kam:8e &gh>'z;`r q = parseInt(q);
-R9{Ak p = parseFloat(p);
W^W.* ?e` ,H|K3nh txts[txts.length-1].value = (q * p).toFixed(2);
a{e1g93} }
0 Swu]OE </script>
,jnaa (n ']!wc8m1" 4tkb7D
q lE+Duap: L{ej<0 yr 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
"MPS&OK page_load
6d5q<C_3t page.smartNavigation=true
4<EC50@. [:izej(\ 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
p;%5 o0{1 private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
X&Ospl@H {
_Kli~$c& M for(int i=0;i<e.Item.Cells.Count-1;i++)
TPj,4&| if(e.Item.ItemType==ListItemType.EditType)
[$]-W$j+ {
TCgW^iu e.Item.Cells.Attributes.Add("Width", "80px")
'8^cl:X }
oh:.iL}j }
-Zg.o$ Ix@nRc' 26.对话框
DEPsud ; private static string ScriptBegin = "<script language=\"JavaScript\">";
#|V)>") private static string ScriptEnd = "</script>";
V\c`O ErQGVE;zk public static void ConfirmMessageBox(string PageTarget,string Content)
wgQx.8 h> {
A0ZU #"'/ string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
Ln4Dq[M OJFWmZ(X ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
zq$0 ?vGd L 'e|D=y Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
@E> rqI;` ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
b$/7rVH! //Response.Write(strScript);
R2Q1Rk# }
nbv}Q-C 7a4Z~r27/ 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
xd`\Ai
(2
P&@!| 1.1 取当前年月日时分秒
B;<zA' 1 currentTime=System.DateTime.Now;
2%-/}'G* \h}sA 1.2 取当前年
DnCIfda2g int 年= DateTime.Now.Year;
pe!"!xJE I#(?xHx
1.3 取当前月
WuQ;Da0+_F int 月= DateTime.Now.Month;
7Xh
;dJAF3 N.V5>2 1.4 取当前日
=Nz;R2{@ int 日= DateTime.Now.Day;
\O*W/9
+ &<(&u`S 1.5 取当前时
0<Rq int 时= DateTime.Now.Hour;
&'m&'wDt: j9f Q V 1.6 取当前分
cmp@Ow"c int 分= DateTime.Now.Minute;
k7nke^,| !3ji]q;uF 1.7 取当前秒
RV@mAw.T int 秒= DateTime.Now.Second;
?0d#O_la3 &8JK^zQq 1.8 取当前毫秒
-{p~sRc& int 毫秒= DateTime.Now.Millisecond;
2}9M7Z",2 6^ ,;^ 28.自定义分页代码:
C)&BtiUN/ L}tP_ * 先定义变量 :
*3(mNpi{_ public static int pageCount; //总页面数
WFfn:WSWU public static int curPageIndex=1; //当前页面
wd2z=^S~ 3oPyh $* 下一页:
]&"01M~+K if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
(J.U{N v {
kq>I?wg DataGrid1.CurrentPageIndex += 1;
o}Q3mCB curPageIndex+=1;
+o K*5 Y }
I(qFIV+HR $g
}aH(vf bind(); // DataGrid1数据绑定函数
5M#LO@U mv#*%St5 上一页:
4V'HPD>=V if(DataGrid1.CurrentPageIndex >0)
H
;)B5C {
[`!%u3 DataGrid1.CurrentPageIndex += 1;
G54`{V4&s curPageIndex-=1;
/PE L[Os }
Bm+Ca:p% kK.[v'[>& bind(); // DataGrid1数据绑定函数
2CV? cm X?'pcYSL 直接页面跳转:
e_IRF+> int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
[6\b(kS+ pL,l if(a<DataGrid1.PageCount)
[-VIojs+u {
BR:Mcc this.DataGrid1.CurrentPageIndex=a;
f7&9IW`7F^ }
c-ql 8;x0U`}Ez( bind();
/z: mi H`rd bE 29.DataGrid使用:
plM:7#eA ?$VkMu$2k 添加删除确认:
KY\=D 2m private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
<,y> W! {
_IWLC{%V foreach(DataGridItem di in this.DataGrid1.Items)
gKtgW&PYm {
@]Lu"h#u= if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
x
kdC-S {
k`J|]99Wb ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
T@a|*.V }
~nApRC)0 }
|mcc?*%t8 }
e(Rbq8D -B?cF9 样式交替:
"Cs36k ListItemType itemType = e.Item.ItemType;
<6X*k{ Rx?ze( if (itemType == ListItemType.Item )
wOsg,p;\' {
me-uPm e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
ilAhw4A e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
|qBcE }
fElFyOo+ else if( itemType == ListItemType.AlternatingItem)
4eJR=h1 {
2OQ\ z;s e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
:aH5=@[!y e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
zE~Xxp }
JfmYr47Pv B<0Kl.V 添加一个编号列:
/Q_Dd DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
;; ;=)'o DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
Q!_d6-*u m=SI *V for(int i=0;i<dt.Rows.Count;i++)
ck\W'Y*Q7 {
+wxsAGy_j dt.Rows["number"]=(i+1).ToString();
[bRE=Zr$Ry }
AQmHa2P X0R EC% DataGrid1.DataSource=dt;
9zY6hh** DataGrid1.DataBind();
v*%52_ DTSf[zP/ DataGrid1中添加一个CheckBox,页面中添加一个全选框
eTuKu(0
E private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
}1W@ {
{Ay dt8 foreach(DataGridItem thisitem in DataGrid1.Items)
K6sXw[VC[ {
.ws86stFSb ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
=1@LMIi5x }
)Yv=:+f }
3bYjW=_hA Id&e' 将当前页面中DataGrid1显示的数据全部删除
*0to,$ n foreach(DataGridItem thisitem in DataGrid1.Items)
;S '?l0 {
K/K-u if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
b?c/J{me {
b $JS| string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
kwL|gO1L Del (strloginid); //删除函数
ts9wSx~[+ }
.Z
67 }
(zsv!U *BdH
&U 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)
');vc~C _+'!l'` 在Application_Start中添加以下代码:
&lLfVa-l Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
+{RTz)e?* AppSettings["ConnStr"].ToString();
c!/+0[ }\Rmwm- 31. 变量.ToString()
M/dgW`c I<ohh`. 字符型转换 转为字符串
yCvtglAJ4 12345.ToString("n"); //生成 12,345.00
/Pkz3(1 12345.ToString("C"); //生成 ¥12,345.00
7J!s"|VS 12345.ToString("e"); //生成 1.234500e+004
f!`?_ 12345.ToString("f4"); //生成 12345.0000
[`t ;or 12345.ToString("x"); //生成 3039 (16进制)
Dzf\m>H[ 12345.ToString("p"); //生成 1,234,500.00%
dpw-a4o} h]s~w 32、变量.Substring(参数1,参数2);
S`U8\KTi ]i$0s 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
|w}j!}u BB\GrD 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
[Hx(a.,d <SCRIPT language="javascript">
%DYh<U4N <!--
IBo function gook(pws)
rB$~,q&.V {
45sEhs[$ frm.submit();
uC^)#Y\" }
YM:sLeQ~c //-->
c
'wRGMP :J]'c} </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
$jg[6`L$ <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
Ee2P]4_d <tr>
t4_yp_ <td>
,<t.Iz% <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
e^>>"tr <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
0BlEt1e2T <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
*v+l,z4n vS>'LX <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
kg]6q T;Y <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
1"ZtE\{
" hhy+bA} </td>
(yqe4 :}zyd;Rc </tr>
= 'o3 <} BqNeY<zB* </form>
F tIcA"^N V2Vr7v=Y" 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。
5;/n`Bd g%f5hy 下面是获取用户输入的登陆信息的代码:
\dtiv& x string name;
o:AfEoH"~ name=Request.QueryString["EmailName"];
PR.3EL e
c&Y2 try
3Tl<ST\ {
fZo#:"{/K int a=name.IndexOf("@",0,name.Length);
lA5Dag' f_user.Value=name.Substring(0,a);
o%t4WQ|bj f_domain.Value=name.Substring(a+1,name.Length-(a+1));
(SBhU:^h f_pass.Value=Request.QueryString["Psw"];
P }sr }
?uq`| 1` -eG~ catch
7y'uZAF {
e?]5q ez Script.Alert("错误的邮箱!");
t@qf/1 Server.Transfer("index.aspx");
k XSX<b <% }