1. 打开新的窗口并传送参数:
]O}e{Q> :Z/\U*6~ 传送参数:
W\-`}{B_/ response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
3f$n8>mq KaMg[G 接收参数:
J0vQqTaT string a = Request.QueryString("id");
u[KxI9Q string b = Request.QueryString("id1");
j=U"t\{ LK4NNZf7 2.为按钮添加对话框
Kn3Xn`P? Button1.Attributes.Add("onclick","return confirm(’确认?’)");
/tG as button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
IAzFwlO9 ~-NSIV:f 3.删除表格选定记录
oQpGa>6U& int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
q|%+?j( string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
A",}Ikh='` ;F-
mt( Y 4.删除表格记录警告
OLt0Q.{ private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
Ax\d{0/oL2 {
0827z switch(e.Item.ItemType)
T~$Eh6
D {
MCTJ^ g"D case ListItemType.Item :
QKEtV case ListItemType.AlternatingItem :
D^h!
].3
T case ListItemType.EditItem:
lvODhoT TableCell myTableCell;
h}'Hst myTableCell = e.Item.Cells[14];
a_/4 ^+ LinkButton myDeleteButton ;
.7
)oWd! myDeleteButton = (LinkButton)myTableCell.Controls[0];
%'g)MK!e myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
LH}9&FfjU break;
R}w}G6"\ default:
Y|b,pC|, break;
!_3b#Caf }
'Q=)- #%ld~dgz- }
s*
u1n+Zq r?Mf3U^G 5.点击表格行链接另一页
[*It' J^ private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
Fhllqh) {
>WZbbd- //点击表格打开
Dz$w6d if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
!%}n9vr!}\ e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
^/}4M'[ w }
OAiW8BAe p*g)-/mA 双击表格连接到另一页
N2 3:+u<)E oL R/\Y( 在itemDataBind事件中
MYb^G\K if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
c\>I0HH;! {
|.RyF@N`T string OrderItemID =e.item.cells[1].Text;
"3]}V=L<5 ...
B%u[gNZ e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
i)(G0/: }
XNx$^I= 3mYW] 双击表格打开新一页
f4AN"rW if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
^1c7\"{ {
z__t8yc3 string OrderItemID =e.item.cells[1].Text;
KI#v<4C$P ...
Wk3-J&QbS e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
.H M3s }
Ebj0 {ZL Sn'!Nq> ★特别注意:【?id=】 处不能为 【?id =】
d>I)_05t 6.表格超连接列传递参数
RAhDSDf <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
F~E)w5?\O <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
}OnU32P PX^k; 7.表格点击改变颜色
Z R=[@Oi if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
UMNNAX {
IFr"IOr'l e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
z8S]FpM6 this.style.color=’buttontext’;this.style.cursor=’default’;");
L.;x=w }
W\Sc ak> r6Vw!^]8u8 写在DataGrid的_ItemDataBound里
KK>jV if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
mYJ8O$ {
8r[TM e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
lU=VCuW! this.style.color=’buttontext’;this.style.cursor=’default’;");
oF+yh!~mM e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
E$:2AK{* }
&,PA+# S/pU|zV[ mMZrBz7r 8.关于日期格式
NRG~ya > or;VmU8$zb 日期格式设定
YZOwr72VL DataFormatString="{0:yyyy-MM-dd}"
^)Y3V-@t O,^s)>c 我觉得应该在itembound事件中
*wmkcifF; e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
q3/4l%"X +ru `Zw5, 9.获取错误信息并到指定页面
b0h\l#6 s8]%L4lvu 不要使用Response.Redirect,而应该使用Server.Transfer
CpX[8>&osD 6.45^'t] e.g
r^"sZk# // in global.asax
b|x B< protected void Application_Error(Object sender, EventArgs e) {
,*lns.|n if (Server.GetLastError() is HttpUnhandledException)
5lzbg Server.Transfer("MyErrorPage.aspx");
%j1 7QD8 Ym]g0a //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
$?:IRgAr }
j+AZ!$E :&z!o"K 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
^hEN tQ'R(H` 10.清空Cookie
8aRmHy"9l Cookie.Expires=[DateTime];
oui0:Vy< Response.Cookies("UserName").Expires = 0
c; .y ]CS
N7Q+l 11.自定义异常处理
RmKbnS$*q //自定义异常处理类
zN+jn using System;
G&wYV[Ln using System.Diagnostics;
3#udzC G;t<dJ8 namespace MyAppException
|yOIC,5[JW {
F [-D
+Nka /// <summary>
S$wC{7?f /// 从系统异常类ApplicationException继承的应用程序异常处理类。
# vy[v22 /// 自动将异常内容记录到Windows NT/2000的应用程序日志
"AMw o(Yi /// </summary>
MB>4Y]rtU public class AppException:System.ApplicationException
HH(2 {
5f@&XwD9 public AppException()
F)'_,.?0 {
Td^62D; if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
{}"
< }
Z$Qwn 7X$pgNRx/a public AppException(string message)
n^G[N-\3 {
9*n?V ;E LogEvent(message);
LG(" <CU }
)r*F.m{&: )&)tX. public AppException(string message,Exception innerException)
Y3)*MqZlF {
DYZk1 LogEvent(message);
@WKJ7pt`'N if (innerException != null)
brCL"g|} {
V5jy,Qi) LogEvent(innerException.Message);
^\VVx:] }
q8e] {sT'! }
/b4>0DXT5 /W}"/W9 //日志记录类
#iD`Bg!VXc using System;
H}usL)0&& using System.Configuration;
/(s N@kt using System.Diagnostics;
O6q5qA using System.IO;
jR3mV using System.Text;
C6tfFS3bq using System.Threading;
v)zxQuH]^ -7I%^u namespace MyEventLog
a63Ud<_a7 {
shY8h
/// <summary>
`Z2-<:]6&a /// 事件日志记录类,提供事件日志记录支持
W{}M${6& /// <remarks>
?*QL;[n1 /// 定义了4个日志记录方法 (error, warning, info, trace)
'?mky,:HT /// </remarks>
`7V'A /// </summary>
RS{E| public class ApplicationLog
vcOw`oS {
N;cSR\Ng /// <summary>
.z,`{-7U /// 将错误信息记录到Win2000/NT事件日志中
"t>H
B6^ /// <param name="message">需要记录的文本信息</param>
a{}8030S /// </summary>
Hv
=7+O$ public static void WriteError(String message)
wI[J> 9Qn {
'z};tIOKJk WriteLog(TraceLevel.Error, message);
$|19]3T@Z }
Ht~YSQ~:y hi ),PfAV /// <summary>
8/|1FI /// 将警告信息记录到Win2000/NT事件日志中
=d
JRBl /// <param name="message">需要记录的文本信息</param>
3e;ux6 /// </summary>
'^:q|h public static void WriteWarning(String message)
3+vMi[YO {
'81WogH: WriteLog(TraceLevel.Warning, message);
X/S%0AwZ }
`6*1mE1K& g`H;~ w /// <summary>
U;U19[] /// 将提示信息记录到Win2000/NT事件日志中
Mbxrj~ue /// <param name="message">需要记录的文本信息</param>
7}Jn`^! /// </summary>
].N%A07 public static void WriteInfo(String message)
zj;KtgcE {
3=^B
&AB WriteLog(TraceLevel.Info, message);
1KI5tf>>p }
ru*}lDJ /// <summary>
>6z7.d /// 将跟踪信息记录到Win2000/NT事件日志中
11-?M /// <param name="message">需要记录的文本信息</param>
E@)9'?q /// </summary>
Q~)A
fa{ public static void WriteTrace(String message)
%T~LK=m {
@9h6D<? WriteLog(TraceLevel.Verbose, message);
e:iqv?2t }
+2^Mz&I@b o:RO(oA0? /// <summary>
R-BN}ZS /// 格式化记录到事件日志的文本信息格式
W&9X <c* /// <param name="ex">需要格式化的异常对象</param>
NS^+n4 /// <param name="catchInfo">异常信息标题字符串.</param>
+C`zI~8 /// <retvalue>
Q|W~6 /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
@D=i|f /// </retvalue>
7j{63d`2 /// </summary>
fzjZiBK@ public static String FormatException(Exception ex, String catchInfo)
jsIT{a*] {
XbW 1`PH StringBuilder strBuilder = new StringBuilder();
d/` d:g if (catchInfo != String.Empty)
h[j(@P {
t;)`+K#1: strBuilder.Append(catchInfo).Append("\r\n");
N5@l[F7I }
"I^pb.3 strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
9
IY1"j0O return strBuilder.ToString();
Z oQPvs7_ }
#TG.weTC }FT8[m< /// <summary>
q
`^5< /// 实际事件日志写入方法
PRyzUG& /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
(&-!l2 /// <param name="messageText">要记录的文本.</param>
LE4P$%>H /// </summary>
"A3V(~%! private static void WriteLog(TraceLevel level, String messageText)
&s_)|K {
rn%q*_3-o try
,~qjL|9 {
f-a+&DB9 EventLogEntryType LogEntryType;
Uk= L?t switch (level)
E|omC_h {
Nd61ns(N case TraceLevel.Error:
3`DwKv`+ LogEntryType = EventLogEntryType.Error;
6Bn%7ZBv break;
ttA0*
>' case TraceLevel.Warning:
!ZTBiC5R LogEntryType = EventLogEntryType.Warning;
~ YCZvJ break;
X,i^OM_ case TraceLevel.Info:
g)Dg=3+> LogEntryType = EventLogEntryType.Information;
;\)N7SJ break;
xBKis\b case TraceLevel.Verbose:
y?yWM8 LogEntryType = EventLogEntryType.SuccessAudit;
|GnqfD break;
2]f?c%)I default:
!O*uQB LogEntryType = EventLogEntryType.SuccessAudit;
\XT~5N6 break;
w2e9Ue~WH }
-mAi7[omh D0a3%LBS/2 EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
?_Y2'O //写入事件日志
-|nHwSrCZ/ eventLog.WriteEntry(messageText, LogEntryType);
+LeM[XX *Z
C$DW!- }
Mg76v<mv< catch {} //忽略任何异常
JN:EcVuy }
T9=55tpG9 } //class ApplicationLog
v'H\KR-; }
,CA3Q.y>| 76r RF 12.Panel 横向滚动,纵向自动扩展
B$@fE} <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
0)T`&u3! K~ShV 13.回车转换成Tab
ej&ZE
n <script language="javascript" for="document" event="onkeydown">
#>@~3kGg if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
!$5.\D event.keyCode=9;
l&LrcM </script>
9 9S-P}xd 8KhE`C9z onkeydown="if(event.keyCode==13) event.keyCode=9"
oD>j26Q J_ S]jE{ 14.DataGrid超级连接列
:*MqYny& DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
qe"t0w|U? :M'V**A( 15.DataGrid行随鼠标变色
"o.g}Pv private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
&mJ
+#vT {
Az"(I>VfD if (e.Item.ItemType!=ListItemType.Header)
DEcsFC/SK {
xesZ7{ o e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
{D9m>B3"{ e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
e;ej/)no` }
X[Q:c4' }
~xSAR;8 Q7vTTn\ 16.模板列
vOKWi:-U <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
c
Oi:bC@ <ITEMTEMPLATE>
C_~hX G <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
a.O pxd </ITEMTEMPLATE>
bm:"&U*tu' </ASP:TEMPLATECOLUMN>
V`/D!8> sS5: 5i <ASP:TEMPLATECOLUMN headertext="选中">
,-GkP>8f( <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
sKK*{+,kh; <ITEMTEMPLATE>
9< $n'g <ASP:CHECKBOX id="chkExport" runat="server" />
ToVi; </ITEMTEMPLATE>
_'"whZ)2 <EDITITEMTEMPLATE>
^OWA <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
v3`k?jAaI </EDITITEMTEMPLATE>
=KctAR; </ASP:TEMPLATECOLUMN>
c'8pTP%[ d}2$J1` 后台代码
6|-V{ protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
WE|-zo {
'q_^28rK //改变列的选定,实现全选或全不选。
|\W9$V CheckBox chkExport ;
AsOkOS3 if( CheckAll.Checked)
c6@7>PM {
\(db1zmS~ foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
f=L&>X {
hN3*]s;/6z chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
% >\v6ea chkExport.Checked = true;
nbECEQ:|B }
:47bf<w|Y }
;;#_[Zl else
oY K(=j {
k)t_U3i foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
y|7sh {
,3As
Ng chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
Fzc8) *w chkExport.Checked = false;
Q,f~7IVX }
oieJ7\h]m }
Ddr.kXIpo }
1j!LK- Lxg,BZV 17.数字格式化
@|jLw($Ly }^@Q9<P^E 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
K|{IX^3)V <%#Container.DataItem("price","{0:¥#,##0.00}")%>
6Kbc:wlR VPh0{(O^= int i=123456;
RZgklEU string s=i.ToString("###,###.00");
+~x'1*A_ ?DwI>< W 18.日期格式化
Vx<`6uv .yF@Ow 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
\|gE=5!Am= /Z ?$!u4I 显示为: 2004-8-11 19:44:28
c&mLK1A6 :< d. 我只想要:2004-8-11 】
jGSY$nt9 <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
GI[TD?s i0TbsoKh: 应该如何改?
2d# 3LnO X9-WU\?UC 【格式化日期】
:Rftn6! N*w6D: 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
"PD^]m b4R;#rm 【日期的验证表达式】
.DX-biX, F{*h~7D-| A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
AbExJ~JV\g ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
\x7^ly$_ V'q?+p]
a B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
VRs|"; ^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$
[X%Wg:K E^`-:L(_ 【大小写转换】
cp)BPg HttpUtility.HtmlEncode(string);
cSD$I^$oq HttpUtility.HtmlDecode(string)
JE*d- ]i:_^z)R 19.如何设定全局变量
\V_Tc` }`~n$OVx Global.asax中
rHa*WA;TE E Xxv Application_Start()事件中
*yZ `aKfH YctWSfh 添加Application[属性名] = xxx;
>\o._?xSA rk-GQ#SKU 就是你的全局变量
Ntt*}|:QV< 2;w`W58
20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
N`HiNb
[ ;EB^1*AEw HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
aJ"m`5]=% b]b+PK*h 【ASPNETMENU】点击菜单项弹出新窗口
B2,c_[UZ. NXCvS0/h 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
7tP%tp
ez <?xml version="1.0" encoding="GB2312"?>
dSI<s^n <MenuData ImagesBaseURL="images/">
d.0K~M <MenuGroup>
kW7$Gw]- <MenuItem Label="内参信息" URL="Infomation.aspx" >
}0IeKpu5 <MenuGroup ID="BBC">
)~ 0TGy| <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
0Lf4^9N <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
v&qL r+_7 ......
c;Gf$9?iC '.wb= C 最好将你的aspnetmenu升级到1.2版
U,K=(I7OBX kMx)G] 21.读取DataGrid控件TextBox值
Fs3
:NH foreach(DataGrid dgi in yourDataGrid.Items)
Sh2BU3 {
5P{[8PZxbV TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
klR\7+lK tb.Text....
^
-4~pDv^ }
tZG l^mA"g );zLgNx, 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
!nsx!M j5[Y0)pV\ 〖思归〗
7`f%?xVn0 <asp:TemplateColumn HeaderText="数量">
6>]w1
H <ItemTemplate>
nMK$&h,{ <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
xnfJruT onkeyup="javascript:DoCal()"
DL<;qhte />
O7CW#F >=4(' <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
Z9.0#Jnu </ItemTemplate>
osl\j]U8 </asp:TemplateColumn>
U:z5`z! {
V)`6 <asp:TemplateColumn HeaderText="单价">
%Zp|1J'" <ItemTemplate>
fD lo L <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
l/,la]!T onkeyup="javascript:DoCal()"
jfiUf1Mj />
&)jq3 {-lpYD^k3 <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
=Oq*9=v| I(Z\$ </ItemTemplate>
wTD}c1J( </asp:TemplateColumn>
Q6RTH +4
h!;i <asp:TemplateColumn HeaderText="金额">
Se_]=>WI <ItemTemplate>
R+U$;r8l <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
x0b=r!Duu </ItemTemplate>
KIcIYCBz </asp:TemplateColumn><script language="javascript">
damG*-7Svx function DoCal()
$_iE^zZaU^ {
m^0vux var e = event.srcElement;
:EAh%q
var row = e.parentNode.parentNode;
C[}UQod0 var txts = row.all.tags("INPUT");
0>8w On if (!txts.length || txts.length < 3)
b"Q8[k |d return;
,<* I5: vJaWHC$q var q = txts[txts.length-3].value;
<zL_6Y2 var p = txts[txts.length-2].value;
_U} vKm )AxD|A if (isNaN(q) || isNaN(p))
E*u*LMm return;
{x?qz~W n|{#5# q = parseInt(q);
+]nIr'V p = parseFloat(p);
D;NL*4zt I`_I^C3 txts[txts.length-1].value = (q * p).toFixed(2);
t^KQ*8clG }
v\5O\ I ^ </script>
K6t"98 p<=Lh47 = ~f(5l. pa1<=w MzX&|wimb 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。
B=r DU$z page_load
DH
yv^ page.smartNavigation=true
50QDqC-]XS l)vC=V6MG 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 ?
S)rr private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
A4!X{qUT- {
W06#|8,{v for(int i=0;i<e.Item.Cells.Count-1;i++)
m~5 unB9 if(e.Item.ItemType==ListItemType.EditType)
gns}%\, {
Yr/$92( e.Item.Cells.Attributes.Add("Width", "80px")
*:@KpYWx" }
y\Aa;pL)RQ }
wKLYyetM! G;}WZy 26.对话框
W|m(Jh[w] private static string ScriptBegin = "<script language=\"JavaScript\">";
wn5OgXxG< private static string ScriptEnd = "</script>";
`P;r[j" <Z:FY|'s public static void ConfirmMessageBox(string PageTarget,string Content)
hm1s~@oEm {
(vO3vCYeQ string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
.oyAi|| Tse#{ ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
9?H$0xZV S-S%IdL Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
`s}L3bR] ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
|@u2/U9
//Response.Write(strScript);
G0UaE1n }
%6320 x *~)6 sm 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
bg i_QB#k\ C8|V?bL 1.1 取当前年月日时分秒
R%WY!I8C currentTime=System.DateTime.Now;
(N9-YP?qm '#f<wfn 1.2 取当前年
MW7~=T int 年= DateTime.Now.Year;
jg710.v: ~a([e\~ 1.3 取当前月
R'k`0 int 月= DateTime.Now.Month;
O`~#X w `q-+r1u 1.4 取当前日
teJt.VA7) int 日= DateTime.Now.Day;
']1n?K=A SUc%dpXZa 1.5 取当前时
eTa_RO,x int 时= DateTime.Now.Hour;
7%Y`j/ ddfGR/1X 1.6 取当前分
Ab@G^SLX int 分= DateTime.Now.Minute;
tP@NQCo )%K<pIk 1.7 取当前秒
e'K~WNT int 秒= DateTime.Now.Second;
g{Hgs 4aS}b3=n 1.8 取当前毫秒
..}P$ int 毫秒= DateTime.Now.Millisecond;
?P'$Vxl M@cFcykK 28.自定义分页代码:
l(Rn=? q6>eb 先定义变量 :
r^~+<" public static int pageCount; //总页面数
j}^w:W76 public static int curPageIndex=1; //当前页面
[./FzlA s 3ay},3MCV% 下一页:
Oh! {E5!) if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
EV?}oh"x {
$,}jz.R@ DataGrid1.CurrentPageIndex += 1;
!/}3/iU curPageIndex+=1;
u_k[<&$ }
%zcA|SefP .TGw+E1k bind(); // DataGrid1数据绑定函数
zS%XmS\ LCB-ewy#E 上一页:
Hm2Y%
4i% if(DataGrid1.CurrentPageIndex >0)
nJ;^Sz17Q {
|[.-pA^ DataGrid1.CurrentPageIndex += 1;
<w9~T TS curPageIndex-=1;
["3dr@T9Z }
j.q}OK #LasTN9 bind(); // DataGrid1数据绑定函数
\qG?'Iy ?\o~P 直接页面跳转:
XO
<0;9| int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
,#)d >bW=oTFz if(a<DataGrid1.PageCount)
{ M**a {
*~^63Nx! this.DataGrid1.CurrentPageIndex=a;
cw<IL }
cyl%p$ ;C@mT;hR bind();
^QS`H@+Z ;5tOQ&p%v 29.DataGrid使用:
{'IO zZ%[SW&vC 添加删除确认:
UA$IVK&{ private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
=~;~hZj {
J0!V ( foreach(DataGridItem di in this.DataGrid1.Items)
iHPsRq! {
Dj\nsc@e3 if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
*`H*@2 {
~F,~^r!Jtu ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
c1Ks{%iA }
\bARp z?a }
l'"nU6B& }
'zYS:W z=>fBb>w7 样式交替:
%/A>'p,~ ListItemType itemType = e.Item.ItemType;
gv`_+E{P *V2;ds.~ if (itemType == ListItemType.Item )
Q a (Sb {
g#$ C8k e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
Tw-NIT) e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
d0>U-. }
2d.$V,U< else if( itemType == ListItemType.AlternatingItem)
o|@0.H| {
]d1'5F][H e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
!8G)`' e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
MH.+pqIv^ }
bWo dL0Q8d\^T 添加一个编号列:
(%B{=w}8 DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
l2LQV]l DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
W:i Q&[f A$@;Q5/2 for(int i=0;i<dt.Rows.Count;i++)
u !BU^@ P {
1
m'.wh| dt.Rows["number"]=(i+1).ToString();
hi"C<b. }
k?fz @H8D( 1K9.3n DataGrid1.DataSource=dt;
dEk#"cvg DataGrid1.DataBind();
{]dxFhe) 76w[X=Fv DataGrid1中添加一个CheckBox,页面中添加一个全选框
N?qETp -: private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
')q0VaohC {
??/bI~Sd foreach(DataGridItem thisitem in DataGrid1.Items)
l!,tssQ {
(u 7Lh>6% ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
{?yVA }
d#T5=5# }
J&aN6 l? j^/<:e c. 将当前页面中DataGrid1显示的数据全部删除
1grcCL
q foreach(DataGridItem thisitem in DataGrid1.Items)
8F\'?7 {
{<IHiB35q if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
rG-x 3>b {
Z3zD4-p$_ string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
\B
8 j9 Del (strloginid); //删除函数
xz: }
c&#Q`m }
p8]X Ne S]E|a@kD3 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
X$%[%q8qg r,|}^u8` 在Application_Start中添加以下代码:
cooicKS7 Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
(CDh,ZN;| AppSettings["ConnStr"].ToString();
=H-BsX?P Q&$2F:4f& 31. 变量.ToString()
H5vg s2R 9~ V(wG 字符型转换 转为字符串
DbI)tDi5D 12345.ToString("n"); //生成 12,345.00
9u^za!pE 12345.ToString("C"); //生成 ¥12,345.00
% T$!I (L& 12345.ToString("e"); //生成 1.234500e+004
0kp{`3ce 12345.ToString("f4"); //生成 12345.0000
Hm 0;[i 12345.ToString("x"); //生成 3039 (16进制)
&mJm'Ks 12345.ToString("p"); //生成 1,234,500.00%
{Y+e|B0
?MRT 32、变量.Substring(参数1,参数2);
Yg!fEopLb )CH\]>-FO 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);
AGlFbc(L NljcHe}Qy 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)
>.gT9 <SCRIPT language="javascript">
F{&0(6^p! <!--
bT:;^eG" function gook(pws)
_Pw5n
mH c {
Re;[S[D7 frm.submit();
/u'V>=D;f }
+nFC&~q //-->
[r1\FF@v, ]|Iczg- </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
wx/*un%2 <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
*]S&V'Di <tr>
G7#<Jo<8 <td>
Xj6?,J <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
e>HdJ"S` <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
?D@WXE0a <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
k+u L^teyS GZiN&}5e <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
d-UQc2r <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
;3O=lo:$~ F$,i_7Z&6 </td>
>`
|sBx IDt7KJ@hc </tr>
)K0rPnYV 4V
5 </form>
hRktvO)K fXx !_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。
g/z7_Aq/ &(X-b"2 下面是获取用户输入的登陆信息的代码:
wn>?r
?KIB string name;
tc<HA7vpt~ name=Request.QueryString["EmailName"];
U NescZ !-|{B3"6 try
:}~B;s0M\ {
uPL|3ACS int a=name.IndexOf("@",0,name.Length);
5uvFCY./c f_user.Value=name.Substring(0,a);
UV)!zgP f_domain.Value=name.Substring(a+1,name.Length-(a+1));
cY%6+uJ1 f_pass.Value=Request.QueryString["Psw"];
sG k'G573 }
"D/\&1.& ,=t}|!jx catch
gY!#=?/S {
!Im{-t Script.Alert("错误的邮箱!");
p>0n~e Server.Transfer("index.aspx");
y/6%'56uF }