1. 打开新的窗口并传送参数:
Uc!}D 0Q_AF`" 传送参数:
;:vbOG#aSN response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
^O6P Zm5J} $d{{>< 接收参数:
;VeC(^-eh6 string a = Request.QueryString("id");
,xuqQ;JX string b = Request.QueryString("id1");
uXxyw7\W V9I5/~0c 2.为按钮添加对话框
@sav8] Button1.Attributes.Add("onclick","return confirm(’确认?’)");
3%|LMX]M5_ button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
jl{>>TW{x k+'Rh'> 3.删除表格选定记录
~A}"s-Kq5 int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
.d^8w97 string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
;XSV}eLu }ARWR.7Cc 4.删除表格记录警告
us"SM\X# private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
uNxR#S {
xV}E3Yj2# switch(e.Item.ItemType)
\,!FL))yC {
29z+<?K{ case ListItemType.Item :
epJVs0W case ListItemType.AlternatingItem :
fBR,Oneo case ListItemType.EditItem:
I{JU<A,& TableCell myTableCell;
~zi6wu(3 myTableCell = e.Item.Cells[14];
@ >%I\ LinkButton myDeleteButton ;
&=nwb4 myDeleteButton = (LinkButton)myTableCell.Controls[0];
73A1+2 myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
l6:k|hrm; break;
D!Owm&We default:
Ry,_%j3 break;
R4 ;^R }
]BP"$rs =&U JFu }
NYM$0v`0YK e!d&
#ofw| 5.点击表格行链接另一页
,6~c0]/ private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
_]E"hr6a {
ah>;wW!6/ //点击表格打开
,u-i9`B if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
MScjq e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
iS&fp[Th }
8&qCH>Cf `E8m>q Ss 双击表格连接到另一页
eVjr/nm 2BS2$#c> 在itemDataBind事件中
q*{i /=~ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
)Uw
QsP {
:[#HP66[O5 string OrderItemID =e.item.cells[1].Text;
z
`T<g!Y ...
dz5a! e
[ e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
"S(m1L? }
w [I%Id;E 8|.(Y 双击表格打开新一页
v:PNt#Ta if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
(^ZC8)0i( {
aAh")B2 string OrderItemID =e.item.cells[1].Text;
c|X.&<lX ...
Dp8YzWL2^ e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
57Y(_h: }
:iD([V Gn<s>3E ★特别注意:【?id=】 处不能为 【?id =】
yd]W',c 6.表格超连接列传递参数
_*0!6?c <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
mhH[jO) <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
F2:+i#lE ;E l"dqH 7.表格点击改变颜色
{# ;e{v if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
e-sMU {
_M8Q% e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
!`hiXDk*2 this.style.color=’buttontext’;this.style.cursor=’default’;");
gG1%.q }
>M<rr!| Q1 mz~r 写在DataGrid的_ItemDataBound里
d!{,[8& if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
&[`p qX {
|eAl!k e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
:O-Y67>& this.style.color=’buttontext’;this.style.cursor=’default’;");
\om$%FUP e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
HDvj{ }
pa N )t 3;Kv9i<~LE ,)hUL/r6 8.关于日期格式
kLU$8L XE[~!
>' 日期格式设定
E)H:
L- DataFormatString="{0:yyyy-MM-dd}"
$xNM^O 7FW!3~3A_ 我觉得应该在itembound事件中
JBtcl#| e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
SSYE& fKY6stJE 9.获取错误信息并到指定页面
eLJW _Ft4F`pM 不要使用Response.Redirect,而应该使用Server.Transfer
W&q]bi@C ` :eXXE e.g
~b+4rYNxU_ // in global.asax
}o0R`15dA protected void Application_Error(Object sender, EventArgs e) {
i64a]= if (Server.GetLastError() is HttpUnhandledException)
*F1!=:&s Server.Transfer("MyErrorPage.aspx");
{(U?)4@ 8`Q8Mct$< //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
a)^f`s^aa }
}i!hzkK# F&<si:}KB 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
p 2It/O wqx@/--E( 10.清空Cookie
8G;
t[9 Cookie.Expires=[DateTime];
c}kZx1 Response.Cookies("UserName").Expires = 0
A1Ia9@=Mf /)ps_gM 11.自定义异常处理
biKom|<nm //自定义异常处理类
,-myR1} using System;
^s\(2lB\F using System.Diagnostics;
kzny4v[y ?wt%e; namespace MyAppException
$YSAD\a< {
)WF]v"t /// <summary>
e7T"?s /// 从系统异常类ApplicationException继承的应用程序异常处理类。
cq >{ /// 自动将异常内容记录到Windows NT/2000的应用程序日志
qX^#fk7] /// </summary>
N%v}$58Z public class AppException:System.ApplicationException
mjO4GpG3 {
k"Y9Kc0XoU public AppException()
U']DB h {
9G_bM(q'^2 if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
8VQJUwf; }
Gu}|CFL\ mRZC98$ @r public AppException(string message)
Y*/:IYr` {
S9S8T+ LogEvent(message);
.0k ltnB }
K:gxGRE Vz6p^kMB public AppException(string message,Exception innerException)
.Qm"iOyM {
5+\[x` LogEvent(message);
eu@hmR8T if (innerException != null)
|s`j=<rNQI {
}u:@:}8K LogEvent(innerException.Message);
<^snS,06 }
\W=~@k }
ivYHq#b59 wvBx]$SC //日志记录类
CE]0OY using System;
6My=GByC using System.Configuration;
xy)Y)yp using System.Diagnostics;
!#j
y=A using System.IO;
43-mv1>. using System.Text;
2a8ZU{wjn using System.Threading;
vh 5`R/<3 4+e9:r] namespace MyEventLog
~XQj0' {
f4YcZyBGv /// <summary>
^BIB'/Kh) /// 事件日志记录类,提供事件日志记录支持
[y-0w.V=oE /// <remarks>
Nd'+s>d0 /// 定义了4个日志记录方法 (error, warning, info, trace)
XdE#l/# /// </remarks>
)#n0~7
& /// </summary>
|TLU public class ApplicationLog
O32p8AxEz {
'Vq
<;.A /// <summary>
Dg3Sn|!f /// 将错误信息记录到Win2000/NT事件日志中
o7 ^t-
L /// <param name="message">需要记录的文本信息</param>
OD7tM0Wn /// </summary>
d
4w+5H"u public static void WriteError(String message)
CB_ww= {
J}U); A WriteLog(TraceLevel.Error, message);
7s@%LS }
WP[h@#7< qp3J/(F /// <summary>
1Z%^U ? /// 将警告信息记录到Win2000/NT事件日志中
B64L>7\>` /// <param name="message">需要记录的文本信息</param>
-x)Oo` /// </summary>
2Z K:S+c public static void WriteWarning(String message)
x>:~=#Vi {
>]K:lJ]l WriteLog(TraceLevel.Warning, message);
Z^ynw8k" }
1><@$kVMm~ y|X</3w /// <summary>
Z BjyQ4h /// 将提示信息记录到Win2000/NT事件日志中
9eO!_a^ /// <param name="message">需要记录的文本信息</param>
UJ0fYTeuI /// </summary>
%\Dvng6$ public static void WriteInfo(String message)
2L"$p? {
u`?MV2jU2 WriteLog(TraceLevel.Info, message);
jo-jPYH T }
#^%HJp^ /// <summary>
$I*ye+a*{q /// 将跟踪信息记录到Win2000/NT事件日志中
:cU6W2EV /// <param name="message">需要记录的文本信息</param>
aVkgE> /// </summary>
NwPGH=V public static void WriteTrace(String message)
j#L"fW^GM {
JrlDTNJj' WriteLog(TraceLevel.Verbose, message);
4M4Y2fBH }
`/?XvF\ +g/TDwyVH /// <summary>
_RI`I}&9Z /// 格式化记录到事件日志的文本信息格式
*+|D8xp /// <param name="ex">需要格式化的异常对象</param>
cV^r_E\m /// <param name="catchInfo">异常信息标题字符串.</param>
6[ }~m\cY /// <retvalue>
r9nH6 Md\ /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
v"wxHro /// </retvalue>
tgmG#b* /// </summary>
n7-|\p!xP6 public static String FormatException(Exception ex, String catchInfo)
z
H$^.1 {
jZwv!-: StringBuilder strBuilder = new StringBuilder();
/g$cQ=c if (catchInfo != String.Empty)
OBrbWXp@ {
KFQ 4vavNh strBuilder.Append(catchInfo).Append("\r\n");
%]NaHf }
6{Y3-Pxg strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
.}IxZM[}D return strBuilder.ToString();
Itq248+Ci }
@
3n;>oi <[iw1> /// <summary>
*Iy5 V7`KU /// 实际事件日志写入方法
5?6U@??] /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
w_zUA'n+ /// <param name="messageText">要记录的文本.</param>
X*ZTn
7< /// </summary>
'"u>;Bq private static void WriteLog(TraceLevel level, String messageText)
J)(KG dk {
3"v
k$ try
fKEZlrw {
/$a>f>EJ EventLogEntryType LogEntryType;
9vIqGz-o switch (level)
WRa1VU&f {
Fu0"Asxce case TraceLevel.Error:
NQBa+N LogEntryType = EventLogEntryType.Error;
W)F<<B, break;
<zd_-Ysn case TraceLevel.Warning:
abog\0 LogEntryType = EventLogEntryType.Warning;
%#5\^4$z|N break;
X}"Ic@8 case TraceLevel.Info:
D*7JE LogEntryType = EventLogEntryType.Information;
/mS|Byx break;
tYb8a case TraceLevel.Verbose:
%LI[+#QE LogEntryType = EventLogEntryType.SuccessAudit;
z}Y23W&sX break;
3B *b d default:
5Bwr\]%$P LogEntryType = EventLogEntryType.SuccessAudit;
/~sNx break;
A'A5.\UN }
&lbZTY} w5/`_m! EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
War<a#0 //写入事件日志
Oz8"s4Y7 eventLog.WriteEntry(messageText, LogEntryType);
Z8vMVo </xz
V<Pi }
K|n%8hRy catch {} //忽略任何异常
jhRg47A }
U(xN}Y? } //class ApplicationLog
RLy2d'DS }
9Yu63s ia ~!V5Ug_2 12.Panel 横向滚动,纵向自动扩展
qW~Z#Si <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
>WYiOXYv 1P8XVI' 13.回车转换成Tab
^a>3U l{ <script language="javascript" for="document" event="onkeydown">
QuB`}rfLf if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
~rnbuIh event.keyCode=9;
T"h@-UcTl </script>
.\Z/j kHWW\?O onkeydown="if(event.keyCode==13) event.keyCode=9"
1co;U R7'6#2y 14.DataGrid超级连接列
{@1;kG DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
sR~D3- JAt$WW{ 15.DataGrid行随鼠标变色
Rs$fNW@P private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
e6G=Bq$ {
1gK<dg if (e.Item.ItemType!=ListItemType.Header)
,)&ansN {
r6,EyCWcCs e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
sxG8jD e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
+,;"?j6<p }
)Cas0~ RM }
1w`]2 0iKSUwps 16.模板列
"+0Yhr ? <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
,Yp+&&p. <ITEMTEMPLATE>
8m prK`p <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
&*Sgyk
o` </ITEMTEMPLATE>
c+BD37S </ASP:TEMPLATECOLUMN>
L3N?^^] ^l,(~03_ <ASP:TEMPLATECOLUMN headertext="选中">
VL =1 9[ <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
3t4i2] <ITEMTEMPLATE>
EWb'#+BP <ASP:CHECKBOX id="chkExport" runat="server" />
k<&zVV' </ITEMTEMPLATE>
xYmh{Vc8 <EDITITEMTEMPLATE>
dmR>u <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
%yyvB5Y^ </EDITITEMTEMPLATE>
D,3Kx ^ </ASP:TEMPLATECOLUMN>
s0zN#'o] v|K, 后台代码
!g`^<y! protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
54lU~ " {
[TW?sW^0 //改变列的选定,实现全选或全不选。
GgU8f0I CheckBox chkExport ;
s'7PHP)LOJ if( CheckAll.Checked)
xM+_rU
M|h {
{/)q= foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
$a@T:zfe {
v3*y43 chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
nE&`~ chkExport.Checked = true;
i]cD{hv }
9mmkFaBQ }
KD<smwXjG else
WX-J4ieL {
f]_{4Olk foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
=%)Y,
)" {
=~D QX\ chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
A,'F`au chkExport.Checked = false;
icrcP ~$A }
MQ#nP_i }
_\2Ae\&c }
jW8,}Xs ?lPn{oB9" 17.数字格式化
7Mj:bm&9 o){\qhLp 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
xCQLfXK7 <%#Container.DataItem("price","{0:¥#,##0.00}")%>
*2T"lpl G (3wI} int i=123456;
CyV2=o!F w string s=i.ToString("###,###.00");
JhU"akoK ufF>I 18.日期格式化
i8h^~d2" [yhK4A 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
mEZHrr J 3|0wD:Dy 显示为: 2004-8-11 19:44:28
` ;}w!U ^\f1zg9I 我只想要:2004-8-11 】
hNRN`\5Z <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
94}y,\S~ -u$U~?|` 应该如何改?
{aVRvZH4
Nd h 【格式化日期】
Ql1J?9W kf:Nub+h t 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
si,)!%b Ylhy Z&a, 【日期的验证表达式】
zl3GWj|?\7 RxYC]R^78 A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
=j"bLX6; ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
e~ZxDAd t?(fDWd|- B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
"?M)2,:A ^\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]))$
)Tl]1^ 9*2Q'z}_ 【大小写转换】
=T- jG_.H HttpUtility.HtmlEncode(string);
]:r(U5 # HttpUtility.HtmlDecode(string)
V q[4RAd^P 2PC:F9dh\ 19.如何设定全局变量
nZX`y
-AZ UrmnHc>}c Global.asax中
Z VyJ%"(E s/0bXM$^ Application_Start()事件中
.Cu0G1 @s|G18@ 添加Application[属性名] = xxx;
j0~dJ# GboZ T68 就是你的全局变量
[y&uc
<dKHZ4 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
-y'tz,En. w+Y_TJ% HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
dAr=X4LE 2w;Cw~<=d 【ASPNETMENU】点击菜单项弹出新窗口
H1d2WNr[ *AG01# ZF 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
J(Fk@{!F.* <?xml version="1.0" encoding="GB2312"?>
FvXpqlp <MenuData ImagesBaseURL="images/">
n#S?fsQN <MenuGroup>
:I2spBx <MenuItem Label="内参信息" URL="Infomation.aspx" >
"H\R*\-0 <MenuGroup ID="BBC">
B.4Or] <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
98Y1-Z^ . <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
RDOV+2K ......
;3\'}2^|l 8xt8kf*k 最好将你的aspnetmenu升级到1.2版
4jw q$G _/NPXDL 21.读取DataGrid控件TextBox值
)tx2lyY: foreach(DataGrid dgi in yourDataGrid.Items)
9hei8L: {
Ov;q]Vn> TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
"9#hk3*GqX tb.Text....
J6mUU3F9f }
HBm(l@#. jG%J.u^k 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?
()ww9L2 T}jW,Ost 〖思归〗
MP
p <asp:TemplateColumn HeaderText="数量">
ujLje:Yc <ItemTemplate>
l:OXxHxRi <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
o0_H(j? onkeyup="javascript:DoCal()"
n( 9$)B_y />
)Vo%}g?6! ul{D)zm\D <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
&],O\TAul </ItemTemplate>
Jow{7@FG </asp:TemplateColumn>
Q">wl (@NW2 <asp:TemplateColumn HeaderText="单价">
c1xX)cF <ItemTemplate>
}Xb|Ur43 <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
l%
p4.CX onkeyup="javascript:DoCal()"
N>w+YFM />
xD9ZL 7[1VFc#tf <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
QN;GMX5& r_MP[]f|0 </ItemTemplate>
}_D{|!!!T </asp:TemplateColumn>
&MBm1T|Y F$S/zh$)0 <asp:TemplateColumn HeaderText="金额">
bsc#Oq] <ItemTemplate>
[W99}bi$ <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
g,B@*2Uj </ItemTemplate>
d*$x|B|V </asp:TemplateColumn><script language="javascript">
@QDUz>_y function DoCal()
SC--jhDZ {
>#y1(\e var e = event.srcElement;
8l<~zIoO var row = e.parentNode.parentNode;
;?Q0mXr var txts = row.all.tags("INPUT");
f\z9?Z(~ if (!txts.length || txts.length < 3)
F(`Q62o@ return;
S[CWrPaDQ g&\;62lV% var q = txts[txts.length-3].value;
(!a\23 var p = txts[txts.length-2].value;
_ucixM# AD>/#Ul if (isNaN(q) || isNaN(p))
9hgIQl return;
s>=$E~qq f[q_eY q = parseInt(q);
(`<B#D;
p = parseFloat(p);
nv3TxG Z
ZT2c0AK txts[txts.length-1].value = (q * p).toFixed(2);
Ch]q:o4 }
= gcZ RoL </script>
F.D6O[pZ O O-Obg^ %;#9lkOXWH I*KJq?R D=B :tP 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。
&`_|[Y ]H page_load
eGUe#(I / page.smartNavigation=true
'cY@Dqg1 d>/4z#R}- 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 ?
z'zC private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
r#d]"3tH {
+B7UGI for(int i=0;i<e.Item.Cells.Count-1;i++)
_+gpdQq\p if(e.Item.ItemType==ListItemType.EditType)
ZJQkZ_9@2 {
V/ZWyYxjLi e.Item.Cells.Attributes.Add("Width", "80px")
#+^l3hMK }
)5TX3#=;(G }
hDbZ62DDN ]@qD4: 26.对话框
|[!0ry*N% private static string ScriptBegin = "<script language=\"JavaScript\">";
xRF_'|e private static string ScriptEnd = "</script>";
<JZa yCv"(fNQ public static void ConfirmMessageBox(string PageTarget,string Content)
.yb8<q s {
s%?<:9 string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
V{{UsEVO XX*f ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
0qBXL;sE M+4S >Sjw Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
mN#&NA ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
K4^B ~0~ //Response.Write(strScript);
?hW(5]p| }
lb]k"L%KU7 Lya?b 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
^fM=|.? 5d|+ c< 1.1 取当前年月日时分秒
CF5%&B currentTime=System.DateTime.Now;
N]|U-fN\ ~5Rh7 1.2 取当前年
'v@1_HHW\ int 年= DateTime.Now.Year;
;e~K<vMm;y 5a* Awv} 1.3 取当前月
.\)p3pC) int 月= DateTime.Now.Month;
dTVM
!= jw]IpGTt 1.4 取当前日
,7e 2M@=
int 日= DateTime.Now.Day;
'eoI~*}3WQ +>v{#A_u 1.5 取当前时
uMBb=
int 时= DateTime.Now.Hour;
*1}vn%wvn ^N~Jm&I 1.6 取当前分
:wJ!rn,4 int 分= DateTime.Now.Minute;
m>b
i$Y W*D*\E 1.7 取当前秒
.gI9jRdKw int 秒= DateTime.Now.Second;
UKSI"/8I H{;8i7% 1.8 取当前毫秒
y)Lyo'` int 毫秒= DateTime.Now.Millisecond;
,]?l(H $x' ? oGmGKq 28.自定义分页代码:
EtB56FU\ Sq2yQSd 先定义变量 :
iainl@3Qj public static int pageCount; //总页面数
(yz8}L3 public static int curPageIndex=1; //当前页面
OZh+x`' # Xg97[ I8/ 下一页:
< YuI}d~' if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
\y/+H {
W/;qMP1"- DataGrid1.CurrentPageIndex += 1;
"(?[$R curPageIndex+=1;
wT\dzp>/ }
$E@ke: o6
[i0S bind(); // DataGrid1数据绑定函数
#/pZ#ny #60<$HO:Z 上一页:
4>@-1nt} if(DataGrid1.CurrentPageIndex >0)
KL*UU,qU {
,<-a 6 DataGrid1.CurrentPageIndex += 1;
&nZ.$UK< curPageIndex-=1;
j8p'B-yS }
?r~](l k<S!| bind(); // DataGrid1数据绑定函数
0 .p $q ; d
> 直接页面跳转:
3!B3C(g int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
HjN )~<j 6_a.`ehtj< if(a<DataGrid1.PageCount)
5(OF~mX# {
~
.Eln+N this.DataGrid1.CurrentPageIndex=a;
~9ILN~91 }
v6?<)M% ,K[B/tD{j bind();
}~5xlg$B<< QfM*K.7Sl 29.DataGrid使用:
%x7l`.)N 8JAT2a61ur 添加删除确认:
`24:Eg6r private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
N,_ej@L8 {
yc 5n foreach(DataGridItem di in this.DataGrid1.Items)
-.WVuc` {
7f
td2lv if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
X]*W + {
B[MZPv) ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
|wj/lX7y }
>Y< y]vM: }
2jx+q }
z95V 7E Bf88f<Z 样式交替:
Qi7^z; ListItemType itemType = e.Item.ItemType;
J0|}u1?l wGQ{ if (itemType == ListItemType.Item )
Dl/_jM {
73(T+6` e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
"$8<\k$LGT e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
et ]*5Y6 }
bvR*sT#rg else if( itemType == ListItemType.AlternatingItem)
U^0vLyqW^5 {
.< vg[ e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
7\U1K^q e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
/ADxHw`k }
IJXH_H_%* h?YjG^'9 添加一个编号列:
TJ5{Ee GV DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
A?|cJ"N DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
k*c:%vC! [I4FU7mpH for(int i=0;i<dt.Rows.Count;i++)
MgMLfgt"V {
U w`LWG3T dt.Rows["number"]=(i+1).ToString();
+msHQk5#$m }
mLY * Da-(D<[0 DataGrid1.DataSource=dt;
.Um%6a- DataGrid1.DataBind();
1I^Sv ;+b}@e DataGrid1中添加一个CheckBox,页面中添加一个全选框
]:E]5&VwV} private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
'\*Rw]bR| {
c[y=K)<Z foreach(DataGridItem thisitem in DataGrid1.Items)
FVQWz[N {
%#QFu/l ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
v,i:vT\~ }
kdYl>M }
HIa$0g0J Em"X5>;4 将当前页面中DataGrid1显示的数据全部删除
'/
&" foreach(DataGridItem thisitem in DataGrid1.Items)
:M[E-j; {
0RSa{iS*A if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
\]OD pi
2 {
#!D5DK@+ string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
<7]
z'
Del (strloginid); //删除函数
nG%j4r ; }
VD#^Xy4% r }
8rpN2M3h l*m|b""].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)
ToJru VD3[ko 在Application_Start中添加以下代码:
S~Hj.
d4/ Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
$^0YK|F AppSettings["ConnStr"].ToString();
Csc2 yI%3 1aT$07G0 31. 变量.ToString()
sTqB%$K} "DN `@ 字符型转换 转为字符串
3CHte*NL= 12345.ToString("n"); //生成 12,345.00
U; q)01 12345.ToString("C"); //生成 ¥12,345.00
'Lw\nO. 12345.ToString("e"); //生成 1.234500e+004
Ul'G
g 12345.ToString("f4"); //生成 12345.0000
)w`Nkx 12345.ToString("x"); //生成 3039 (16进制)
3 z#;0n} 12345.ToString("p"); //生成 1,234,500.00%
%ej"ZeM BmJ?VJ}Y 32、变量.Substring(参数1,参数2);
}I`|*6Up 8say"Qz 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);
Q8~pIv q%vUEQLBp 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)
-)I _+N <SCRIPT language="javascript">
,/ : )FV <!--
t3XMQ'] function gook(pws)
zLn#p] {
|5/[0V-vy frm.submit();
n{yjH*\Z }
*sG<w%% //-->
-/qrEKQ0U? FTenXJ/c </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
dCK-"#T! <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
HY:@=%R <tr>
D_)vGvv3;. <td>
T:&+#0< <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
N.`]D)57 <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
@&W?e?O ~G <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
C(P$,;6 Z7/dRc
<INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
{L eEnh- <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
k
WtUj >dl!Ep </td>
N9ufTlq
s HlSuhbi'@ </tr>
wm8x1+P "J1ar.li </form>
8dhY"& .-ABo]hf 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。
31C]TdJ ES2qX]I 下面是获取用户输入的登陆信息的代码:
N
[u
Xo string name;
-CrZ'k;4 name=Request.QueryString["EmailName"];
y{]%, }sU\6~ try
KV*:,> {
B# fzMaC int a=name.IndexOf("@",0,name.Length);
1X*T219o f_user.Value=name.Substring(0,a);
K?je(t^ f_domain.Value=name.Substring(a+1,name.Length-(a+1));
9wAc&nl-Y f_pass.Value=Request.QueryString["Psw"];
\PONaRK|[z }
$(R)
=4 !q/lgpEi catch
[mPdT^h {
20qVzXi Script.Alert("错误的邮箱!");
Q ?t Server.Transfer("index.aspx");
dmy-}.pqN }