1. 打开新的窗口并传送参数:
J$Z=`=]t+ &\1n=y 传送参数:
T]ls&cW5 response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
4vEP\E3u<j CHsg2S 接收参数:
l|=4FIMD string a = Request.QueryString("id");
+LF#XS@ string b = Request.QueryString("id1");
w8XCU>
| f. "\~ 2.为按钮添加对话框
xNzGp5H Button1.Attributes.Add("onclick","return confirm(’确认?’)");
];Z6=9n button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
kk%3 2(By CJ*
D 3.删除表格选定记录
/M_$4O;*@ int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
oQ 2$z8 string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
)rq |t9kix >~SS^I0 4.删除表格记录警告
^cm]
[9 private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
ZUHRATT- {
T9C_=0(hn switch(e.Item.ItemType)
`PC9t)%.pV {
CmZayV case ListItemType.Item :
L.Qz29\ case ListItemType.AlternatingItem :
CuWJai:nQ; case ListItemType.EditItem:
|@vkQ
TableCell myTableCell;
EHk\Q\ myTableCell = e.Item.Cells[14];
HR}O:2' LinkButton myDeleteButton ;
N ~{N Nf Y myDeleteButton = (LinkButton)myTableCell.Controls[0];
lG}#K^q myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
B1V{3 break;
-}#HaL#'K default:
hbJ>GSoZ, break;
Y3Fj3NwS }
}5-w,m{8/ 1@DC#2hPr }
9@lWI ZEAUoC1E1 5.点击表格行链接另一页
JVYH b 60Z private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
v1TFzcHl< {
Ho>Np& //点击表格打开
xWxc1tT` if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
9 3>4n\ e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
HeOdCr-PN }
D5TDg\E c2y,zq|H 双击表格连接到另一页
r3W3;L K]hp-QK< 在itemDataBind事件中
$"r9U|6kk if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
)th[fUC( {
%{@Q7 string OrderItemID =e.item.cells[1].Text;
`7CK;NeT ...
[d: u( e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
0B}4$STOo[ }
H$KO[mW} K:wI'N"N 双击表格打开新一页
Jsz!ro if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
Z!)~?<gcq: {
ilA45@ string OrderItemID =e.item.cells[1].Text;
0NXH449I= ...
5% 2A[B e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
}yz>(Pq }
V
~C$| +>e ffZ~r%25{ ★特别注意:【?id=】 处不能为 【?id =】
5E&#Kh(I 6.表格超连接列传递参数
Z0F~? <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
_)M,p@!?=h <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
F$C6( C? 23s;O)) 7.表格点击改变颜色
EY,jy]|# if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
^[M{s(b {
gc9R;B1 e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
E>!=~ 7. this.style.color=’buttontext’;this.style.cursor=’default’;");
bMyld&ga }
e$# *t |A8@r& 写在DataGrid的_ItemDataBound里
2cR[~\_9. if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
zLpCKndj {
K~N$s"Qx e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
&mwd0%4 this.style.color=’buttontext’;this.style.cursor=’default’;");
p+VU:%.t e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
O>~,RI! }
i%hCV o WsI`!ez;D !@xO]Jwv 8.关于日期格式
Vy\Vpp -V2\s 日期格式设定
l<6u@,%s
DataFormatString="{0:yyyy-MM-dd}"
2 !s&|lI >f(?Mxh2 我觉得应该在itembound事件中
k }=<51c e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
kZ40a\9
Ye Zf'*pp T&q 9.获取错误信息并到指定页面
RkF#NCnL; >STtX6h 不要使用Response.Redirect,而应该使用Server.Transfer
eS`VI+=@0 ]A*}Dem*5 e.g
Q7BbST+ // in global.asax
fB+L%+mr8 protected void Application_Error(Object sender, EventArgs e) {
y&/IJst&aq if (Server.GetLastError() is HttpUnhandledException)
C($l'jd& Server.Transfer("MyErrorPage.aspx");
BVQy@:K/ p/.8})c1r //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
c{z$^)A/ }
;]{ee?Q^ld B,%Vy!o Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
dY*q[N/pO [q<'ty 10.清空Cookie
kv+% Cookie.Expires=[DateTime];
sV\_DP/l Response.Cookies("UserName").Expires = 0
C]`uC^6g *l2`- gbE 11.自定义异常处理
l/eF
P //自定义异常处理类
@~3-- using System;
+iVEA(0&$
using System.Diagnostics;
p"g|]@m ,eXtY}E namespace MyAppException
}9~^}99} {
7=!9kk 0 /// <summary>
wPA^nZ^}9c /// 从系统异常类ApplicationException继承的应用程序异常处理类。
__=H"UhWv /// 自动将异常内容记录到Windows NT/2000的应用程序日志
79\wjR!T /// </summary>
AK:cDKBO public class AppException:System.ApplicationException
o[|[xuTm {
8bIP"!=*W public AppException()
i5,iJe0cA {
5xQ-f if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
>=~\b }
2]>O ZhS zM'eqo>!c> public AppException(string message)
@<.@X*#I {
Gw
M:f/eV LogEvent(message);
(3#PKfY+ }
5KCB^`|b>t nxLuzf4U5 public AppException(string message,Exception innerException)
QV;o9j {
e+
xQ\LH LogEvent(message);
Sj9fq* if (innerException != null)
jr6_|(0
i6 {
)vp0X\3q` LogEvent(innerException.Message);
hW^,' m }
9T,/R1N8 }
SN{z)q
Cux(v8=n //日志记录类
8{ zX= using System;
7T~M`$h using System.Configuration;
[$N_YcN? using System.Diagnostics;
|3H+b,M5 using System.IO;
I>c,Bo7 using System.Text;
k+<945kC using System.Threading;
aZfMeW u
v%Q5O4 namespace MyEventLog
fgLjF,Y {
\}j MC /// <summary>
/ 3A6xPOg /// 事件日志记录类,提供事件日志记录支持
*Gsj pNr- /// <remarks>
+y7z>Fwl /// 定义了4个日志记录方法 (error, warning, info, trace)
ua\t5M5 /// </remarks>
kaG/8G( /// </summary>
3h@]cWp public class ApplicationLog
FDHW'OP4 {
P4zo[R%4 /// <summary>
LPk@t^[ /// 将错误信息记录到Win2000/NT事件日志中
nJDGNm, /// <param name="message">需要记录的文本信息</param>
Kxe\H'rR /// </summary>
sD|l}f public static void WriteError(String message)
4S_ -9&z {
Z;0~f<e%
WriteLog(TraceLevel.Error, message);
X{9^$/XsJ }
q
z)2a2C |Uh8b % /// <summary>
#&3,T1i` /// 将警告信息记录到Win2000/NT事件日志中
7Ai?}%b- /// <param name="message">需要记录的文本信息</param>
O-iE 0t /// </summary>
sNf& "C!; public static void WriteWarning(String message)
fXD+ {
@d75X Y Ku WriteLog(TraceLevel.Warning, message);
|tXA$}"L8 }
mScv7S~/s UaT%tv>}8# /// <summary>
J<)qw /// 将提示信息记录到Win2000/NT事件日志中
tbrU>KCBD /// <param name="message">需要记录的文本信息</param>
tgRj8
@ /// </summary>
jhu
&Wh public static void WriteInfo(String message)
"c^! LV {
-,bFGTvYQ WriteLog(TraceLevel.Info, message);
tC[ZWL }
,
X5.|9 /// <summary>
1.hWgW DP /// 将跟踪信息记录到Win2000/NT事件日志中
exRw, Nk4 /// <param name="message">需要记录的文本信息</param>
7DB_Z/uU /// </summary>
'yo@5*x7 public static void WriteTrace(String message)
FX:`7c]:9 {
#]#9Xq WriteLog(TraceLevel.Verbose, message);
x*7@b8J }
<_?zln:4. j,IRUx13f /// <summary>
(?FH`< /// 格式化记录到事件日志的文本信息格式
Hv,|XE@Y /// <param name="ex">需要格式化的异常对象</param>
LoF/45|-< /// <param name="catchInfo">异常信息标题字符串.</param>
^r}c&@ /// <retvalue>
?R`S- /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
ggso9ZlLu+ /// </retvalue>
WBe0^=x /// </summary>
hlVye&;b8 public static String FormatException(Exception ex, String catchInfo)
0<M-asI? {
AFLtgoXn: StringBuilder strBuilder = new StringBuilder();
@"w4R6l+* if (catchInfo != String.Empty)
`oRyw6Sko {
s!6lZ mPM strBuilder.Append(catchInfo).Append("\r\n");
n#_B4UqW% }
u{1R=ML strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
Ky3mzw| return strBuilder.ToString();
9QZaa(vN }
lu utyK! ^2+Ex+ /// <summary>
UQVL)-Z /// 实际事件日志写入方法
:e1h!G /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
WtSs:D /// <param name="messageText">要记录的文本.</param>
K#"=*p, /// </summary>
r>mBe;[TX private static void WriteLog(TraceLevel level, String messageText)
u6iW1,# {
Dy08.Sss try
b,!C8rJ {
!R{IEray EventLogEntryType LogEntryType;
kG^76dAQL switch (level)
\!KE_7HRu {
B|`?hw@g+ case TraceLevel.Error:
|x[I!I7.F LogEntryType = EventLogEntryType.Error;
%VHy?!/ break;
(leX` SN0u case TraceLevel.Warning:
@N'n>8Wn LogEntryType = EventLogEntryType.Warning;
[9E~=A# break;
,BdObx case TraceLevel.Info:
jkeerU6 LogEntryType = EventLogEntryType.Information;
X$};K\I break;
W'G|sk case TraceLevel.Verbose:
d_[H|H9i6 LogEntryType = EventLogEntryType.SuccessAudit;
1(' wg! break;
`Fqth^RK?p default:
G':3U LogEntryType = EventLogEntryType.SuccessAudit;
K)SWM3r break;
#*A'<Zm
}
/<[0o]
3@Ndn EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
nnlj# //写入事件日志
D]]e6gF$e eventLog.WriteEntry(messageText, LogEntryType);
zCs34=3D[ Sv =YI }
bWyimr&B catch {} //忽略任何异常
$q!A1Fgk0 }
(Tx_`rO4VY } //class ApplicationLog
?<Qbp;WBo }
q ` S
~w Y:*% [\R 12.Panel 横向滚动,纵向自动扩展
vG |!d+ <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
z']6C9m} xj5TnE9^ 13.回车转换成Tab
}n)0}U5;0 <script language="javascript" for="document" event="onkeydown">
fy+5i^{= if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
/*C!]Z>. event.keyCode=9;
\p!UY3' </script>
Ir;JYY!0? (g6e5Sgi> onkeydown="if(event.keyCode==13) event.keyCode=9"
Q:kg >Eh U{@Y 14.DataGrid超级连接列
j26i+Z DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
+!).' \((MoQ9Qk 15.DataGrid行随鼠标变色
(Y py} private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
jUT`V
ZK4& {
py6<QoGV
if (e.Item.ItemType!=ListItemType.Header)
a)|y0w)vV {
L:
$
`8 e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
?mMM{{%(. e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
_\AQJ?<M }
We6eAP /Z }
ED0cnr\yG :.PA(97xb 16.模板列
V#G)w~
<ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
<4{m99 <ITEMTEMPLATE>
FNGa4 <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
WcmX"{ </ITEMTEMPLATE>
^y,h0?Z9 </ASP:TEMPLATECOLUMN>
[;m@A\F TX)W.2u= <ASP:TEMPLATECOLUMN headertext="选中">
8Qi)E1n <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
}$oS/bo <ITEMTEMPLATE>
c[2t,+O <ASP:CHECKBOX id="chkExport" runat="server" />
3f=ZNJ> </ITEMTEMPLATE>
sY<UJlDKT <EDITITEMTEMPLATE>
$Sc _E:`] <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
_'D(>e? </EDITITEMTEMPLATE>
|E~c#lV </ASP:TEMPLATECOLUMN>
mG)5xD [G 9Pb) 后台代码
wx-\@{E protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
Xg~9<BGsi {
stiF`l //改变列的选定,实现全选或全不选。
81nD:]7 CheckBox chkExport ;
)\])?q61 if( CheckAll.Checked)
j_C"O,WS {
(wj:Gc foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
?}`-?JB1 {
c0wLc,)G chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
y\v#qFVOZ chkExport.Checked = true;
~\=D@G,9 }
7U7!'xU }
8#!g;`~ D else
A%#M#hD/ {
eEXNEgbn foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
cB&_':F {
-9vNV:c chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
B/X$ZQ0 chkExport.Checked = false;
RUY7Y? }
O=__w *< }
")KqPD6k }
!-M Y<' `BmnXWMgx 17.数字格式化
YCRE- 5! hh4R 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
?|,:;^2l1 <%#Container.DataItem("price","{0:¥#,##0.00}")%>
GZO:lDdA /mwUDf 6x int i=123456;
4prJ!k string s=i.ToString("###,###.00");
yeyDB>#Va. {.Qv1oOa 18.日期格式化
4T@+gy^. a~Dk@>+P> 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
`h'+4 /KvJjt'8 显示为: 2004-8-11 19:44:28
_Q:z -si OUWK 我只想要:2004-8-11 】
brp3xgQ`] <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
DpggZ|J )bM,>x 应该如何改?
KBM*7raA '( I0VJJ 【格式化日期】
ZK;/~9KU 4T3Z9KD!8 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
% PzkV s (:8a6=xQ 【日期的验证表达式】
'$Z)2fn7 N.mRay, A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
0{vT`e' ^((\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})))?$
+a39 !j
1_ gcnX^[`S B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
u7mPp3ZYK ^\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]))$
/"J 6``MV 6):1U 【大小写转换】
N!ihj:, HttpUtility.HtmlEncode(string);
LEM%B??&5z HttpUtility.HtmlDecode(string)
a4UwhbH ='jT
5Mg 19.如何设定全局变量
g8cBb5(L
MWme3u)D Global.asax中
%}(`? JPn)Op6 Application_Start()事件中
x^@oY5}cr D\G.p |9= 添加Application[属性名] = xxx;
/a*){JQ5j F. U@8lr 就是你的全局变量
Gtaa^mnxD j4,y+9U 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
!Ew
ff|v" T1qbb* HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
XB7*S*"! 46]BRL2 G 【ASPNETMENU】点击菜单项弹出新窗口
Iuz_u2"C |&"aZ!Kn 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
^"O>EY': <?xml version="1.0" encoding="GB2312"?>
^R:&c;&, <MenuData ImagesBaseURL="images/">
7tWC<# <MenuGroup>
W8 Ssv <MenuItem Label="内参信息" URL="Infomation.aspx" >
^vMlRt; <MenuGroup ID="BBC">
M6&=- <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
0U~$u <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
+YZo-tE ......
sJKr%2nVV V?dwTc 最好将你的aspnetmenu升级到1.2版
!`%j#bv XA<h,ONE? 21.读取DataGrid控件TextBox值
oi|N8a2R foreach(DataGrid dgi in yourDataGrid.Items)
y5F+~z}{ {
KANR=G TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
]+Lr'HF tb.Text....
2$Xof }
u
`/V1 UhqTn$=fb 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?
27 XM&ZrZ q;bw}4 〖思归〗
Ea
S[W?u} <asp:TemplateColumn HeaderText="数量">
(1|wM+)" <ItemTemplate>
8!|vp7/ <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
C W#:' onkeyup="javascript:DoCal()"
Hy4;i^Ik < />
+z nlf- F oC
$X <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
|;NfH|43; </ItemTemplate>
WYb}SI(E </asp:TemplateColumn>
}Q4Vy ?|kbIZP( <asp:TemplateColumn HeaderText="单价">
Dx1(}D <ItemTemplate>
9V1d`]tP <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
ic`BDkNO onkeyup="javascript:DoCal()"
)Mdddz4 />
FbroI>" e UstUPO <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
hy~[7:/<I& %IBT85{ </ItemTemplate>
keLeD1 </asp:TemplateColumn>
rl7up }?,YE5~ <asp:TemplateColumn HeaderText="金额">
#M|lBYdW} <ItemTemplate>
o3`U;@ &u <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
p#jAEY p </ItemTemplate>
iS,l </asp:TemplateColumn><script language="javascript">
0F-{YQr> function DoCal()
=s":Mx,o
{
peu9Bgs var e = event.srcElement;
/>mK.FT var row = e.parentNode.parentNode;
"'bl)^+?, var txts = row.all.tags("INPUT");
YA,~qT| if (!txts.length || txts.length < 3)
lND2Kb return;
OC*28) z |llf7: var q = txts[txts.length-3].value;
4
9N.P;b var p = txts[txts.length-2].value;
nrMW5>&-` >)<? if (isNaN(q) || isNaN(p))
}P?e31@: return;
0&sa#g2 SbGdcCB q = parseInt(q);
yn}Dj9(q p = parseFloat(p);
H;4QuB'^ T+nID@"36 txts[txts.length-1].value = (q * p).toFixed(2);
Y[f]L4,V }
avq$aq(3& </script>
`sqr>QD 0#OyT'~V% <~5O-.G] F:q4cfL6 pp"#pl 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。
f2x!cL|Kx? page_load
iGhvQmd(/* page.smartNavigation=true
SPE)db3 :W, S 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 ?
fYjmG[4 private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
Ur#jJR@%3 {
ywJ [WfCY for(int i=0;i<e.Item.Cells.Count-1;i++)
9oJM?&i if(e.Item.ItemType==ListItemType.EditType)
4+q,[m-$( {
3`yO&upk e.Item.Cells.Attributes.Add("Width", "80px")
Xd%qebK }
0 YFXF }
xg/( N_NN0 26.对话框
^}Vc||S private static string ScriptBegin = "<script language=\"JavaScript\">";
_ +DL private static string ScriptEnd = "</script>";
,Suk_aX> q6F1Rt public static void ConfirmMessageBox(string PageTarget,string Content)
LH(P<k& {
FTCIfW string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
aC[G_ACwc -c&=3O! ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
)).=MTk _">F]ptI; Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
ij0I!ilG4 ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
9JP:wE~y //Response.Write(strScript);
#aL.E(% }
b5)^g+8)w [<f2h-V$ 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
,WWd%DF) "}Om0rB}1 1.1 取当前年月日时分秒
;SU<T^a currentTime=System.DateTime.Now;
Dst;sLr[, bs|gQZG 1.2 取当前年
;GM`=M4 int 年= DateTime.Now.Year;
P?V+<c{ Ld*Ds!*'/ 1.3 取当前月
^5]9B<i[Y int 月= DateTime.Now.Month;
W,[ RB )8oyo~4? 1.4 取当前日
O~qRHYv int 日= DateTime.Now.Day;
Z~Q5<A9Jz h>!h|Ma 1.5 取当前时
<lFHmi$qt{ int 时= DateTime.Now.Hour;
sC\?{B0r
]\fHc"/ 1.6 取当前分
it H int 分= DateTime.Now.Minute;
}Q: CZ 'Grej8 1.7 取当前秒
J'WzEgCnU int 秒= DateTime.Now.Second;
X[?fU& cZN<}n+q 1.8 取当前毫秒
k:?)0Uh%^ int 毫秒= DateTime.Now.Millisecond;
25Z}.)) O<p=&=TD7 28.自定义分页代码:
>6Pe~J5,: !:\0}w$- 先定义变量 :
w%`S>+kX& public static int pageCount; //总页面数
O8#]7\) public static int curPageIndex=1; //当前页面
m<j;f >uZc#Zt 下一页:
SN"Y@y)= if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
C1f$^N {
8zMGpY# DataGrid1.CurrentPageIndex += 1;
uzQj+Po curPageIndex+=1;
VOj7Tz9UD }
\1<aBgKi cPZ\iGy bind(); // DataGrid1数据绑定函数
" TCJT390 h(kPf]0 上一页:
wclj9&k if(DataGrid1.CurrentPageIndex >0)
k+[oYd {
rx|
,DI DataGrid1.CurrentPageIndex += 1;
4j0;okQWV' curPageIndex-=1;
8cZ[Kl% }
FP&Ykx~ "a;$uW@.6 bind(); // DataGrid1数据绑定函数
7@ONCG j9c:SP5 直接页面跳转:
q<.k:v& int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
U^[AW$WzU i;~.kgtq4 if(a<DataGrid1.PageCount)
:-59~8& {
W"s/8; this.DataGrid1.CurrentPageIndex=a;
nT:<_'! }
?i0u)<H eptw)S-j bind();
XC<'m{^(m \'g7oV;>cI 29.DataGrid使用:
wG:RvgX} <z60EvHg 添加删除确认:
7>zUT0SS private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
[H!do$[> {
@P0rNO%y foreach(DataGridItem di in this.DataGrid1.Items)
5/6Jq {
N4qBCBr( if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
z{BgAI, {
GNHXtu6 ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
a'HHUii= }
F&p42!" }
`yl|NL }
d\Up6F *>aVU' 样式交替:
@ukL!AV?Y ListItemType itemType = e.Item.ItemType;
~)pZ5%C |4BD if (itemType == ListItemType.Item )
oJ5n*[qUI {
'_DB0_Dp e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
GZ5 DI+3 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
4VF]tX?o }
(JOR:
1aT else if( itemType == ListItemType.AlternatingItem)
Z! /_H($ {
Yt_tAm e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
6&i])iH e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
7^.g\Kt? }
=v|$dDz +5O^{Ce6 添加一个编号列:
$pPc}M[h DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
6C"${}SF` DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
jN=
!Q&^i[ D?xR>Oo) for(int i=0;i<dt.Rows.Count;i++)
?Nt m5(R {
Su@V5yz dt.Rows["number"]=(i+1).ToString();
EN^L.q9# }
9.
FXbNYg (@BB@G DataGrid1.DataSource=dt;
AVz907h8 DataGrid1.DataBind();
2sqH
>fen (G{:O DataGrid1中添加一个CheckBox,页面中添加一个全选框
ou)0tX3j private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
"kc%d'c( {
Rbgy?8#9 foreach(DataGridItem thisitem in DataGrid1.Items)
ooa"Th< {
Ug#B( }/ ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
6R3/"&P(/# }
T{3-H(-gA }
NP\/9
8|1 4%yeEc;z 将当前页面中DataGrid1显示的数据全部删除
iqX%pR~Yo foreach(DataGridItem thisitem in DataGrid1.Items)
BUI#y `J {
;x|?N* if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
|P9Mhf N {
Z~w?Qm:/ string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
`]6W*^'PD Del (strloginid); //删除函数
c.-dwz }
6~!7?FK }
"_rpErm
} ^Kl<<pUaV 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)
yJ; ;& #K-O<:s=y 在Application_Start中添加以下代码:
{v d+cE Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
A)SnPbI-p AppSettings["ConnStr"].ToString();
_!Z}HCk qpf|.m 31. 变量.ToString()
5
r<cna B.Z5+MgM 字符型转换 转为字符串
CC`#2j 12345.ToString("n"); //生成 12,345.00
l,QO+
>)z 12345.ToString("C"); //生成 ¥12,345.00
5@bmm] 12345.ToString("e"); //生成 1.234500e+004
;;^?vS 12345.ToString("f4"); //生成 12345.0000
-q-BP}r3 12345.ToString("x"); //生成 3039 (16进制)
C?g*c 12345.ToString("p"); //生成 1,234,500.00%
Ln h'y`q SrWmV@"y 32、变量.Substring(参数1,参数2);
HZ{DlH;& 5C-n"8&C& 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);
?ZKIs9E[m oB!-JX9 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)
bM
W}.v! <SCRIPT language="javascript">
KAy uv <!--
@-1VN;N function gook(pws)
YpSK|( {
a\MJh+K frm.submit();
Q;z'"P }
>O1u![9K|w //-->
9Pm|a~[m
W\ARCcTQ </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
))6iVgSE$ <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
kQ6YQsJ.* <tr>
!*k'3rKOW <td>
gyMy;}a <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
i~DLo3 <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
,{RWs^W2 <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
%LL?' && P=4o)e7E! <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
t.XuH# <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
2DBFY1[Pk / Kj;% </td>
2+\@0j[q ?+{qmqN </tr>
Pz' Zn F
n*+uk </form>
=~$)Ieu U4y ?z 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。
4Z{ r N?s5h? 下面是获取用户输入的登陆信息的代码:
a&n}pnEn) string name;
hya
$Vp name=Request.QueryString["EmailName"];
`=W#owAF [k,FJ5X try
A$J?- {
v kW2& int a=name.IndexOf("@",0,name.Length);
2s`~<EF N f_user.Value=name.Substring(0,a);
n#5 pd;!n f_domain.Value=name.Substring(a+1,name.Length-(a+1));
7lQ:}& f_pass.Value=Request.QueryString["Psw"];
&,=t2_n }
G"prq& RjHKFB2 catch
AcY! {
d
a.6Z!a Script.Alert("错误的邮箱!");
} q r
, Server.Transfer("index.aspx");
IqjH }