1. 打开新的窗口并传送参数:
g"b{M Q8d-yJs& 传送参数:
\PU7,*2 response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
pE&'Xr#P> +UvT;" 接收参数:
Zw@=WW[Q`p string a = Request.QueryString("id");
s>pM+PoGYd string b = Request.QueryString("id1");
M/?*?B dV/ ^@[ 2.为按钮添加对话框
P|U9f6^3 Button1.Attributes.Add("onclick","return confirm(’确认?’)");
y6#AL<W@= button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
$c^,TAN eHX;*~e6) 3.删除表格选定记录
#E`wqI\' int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
YB`1S string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
rl/]Ym4j 58]C``u@Y 4.删除表格记录警告
C3k[ipCN private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
5EX
Ghc' {
H;DCkVL switch(e.Item.ItemType)
Pl/}`H:R& {
] Hiw+5n case ListItemType.Item :
5Z]]xR[ case ListItemType.AlternatingItem :
9_Ws8nE case ListItemType.EditItem:
,#V}qSKUS TableCell myTableCell;
$R&K-;D/8 myTableCell = e.Item.Cells[14];
%3kS;AaA LinkButton myDeleteButton ;
r)]8zK4;= myDeleteButton = (LinkButton)myTableCell.Controls[0];
*4HogC myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
z%lLbKSe break;
]@P!Q&V # default:
Z%4w{T+[ break;
^l8&y;-T }
]tsp}M@ 0wE)1w<C~ }
96#aGh> wSPwa,)7s 5.点击表格行链接另一页
Dkyw3*LCn% private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
N~!
GAaD {
g3*J3I-O //点击表格打开
T*1 `MIkv if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
s`dwE*~ e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
3uy^o }
Nc_Qd4<[@G vxZ :l 双击表格连接到另一页
i5 ;_ /r?EY&9G 在itemDataBind事件中
A$1Gc>C if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
MZWicfUy {
c`s ]ciC string OrderItemID =e.item.cells[1].Text;
Dd'4W ...
lU8X{SV! e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
N_o|2 }
u5I#5 Q&`if
O 双击表格打开新一页
Vg^,Ky, if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
1zGhX]z {
rp_Aw string OrderItemID =e.item.cells[1].Text;
c 4
bo ...
&s~b1Va e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
*z
}<eq }
*wl&Zzx #-7m@EU;O ★特别注意:【?id=】 处不能为 【?id =】
b{(= C
3 6.表格超连接列传递参数
j<PpCL_8% <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
+@BjQ|UZ <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
:TRhk. X$(YCb 7.表格点击改变颜色
+2JC**)I if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
]&_z@Z.i {
e3=-7FU e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
20`QA
u)' this.style.color=’buttontext’;this.style.cursor=’default’;");
r}M2t$nv }
9?I?;l{
k`=&m" 写在DataGrid的_ItemDataBound里
uGY(` if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
*T-v^ndJh {
vT;~\,M e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
Cm%xI&Y this.style.color=’buttontext’;this.style.cursor=’default’;");
7*(K%e"U e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
w\%AR1,rs }
tk66Ggi[K fD~f_Wr >o4Ih^VB 8.关于日期格式
n _eN|m?@ A&UGr971 日期格式设定
v<:/u(i DataFormatString="{0:yyyy-MM-dd}"
Jl-:@[; 9/dI 6 P7 我觉得应该在itembound事件中
;dquld+q e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
It8s#o q8 -`ss7j&b3 9.获取错误信息并到指定页面
Co^GsUJ 0I7 r{T 不要使用Response.Redirect,而应该使用Server.Transfer
cL^r^kL("
Tu7}*vsR
e.g
.q5WK#^ // in global.asax
eeCrHt4; protected void Application_Error(Object sender, EventArgs e) {
fYiof]v@_m if (Server.GetLastError() is HttpUnhandledException)
:89AYqT" Server.Transfer("MyErrorPage.aspx");
Rd,5&X$ ^+u/Lw& //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
UhbGU G }
1JY3c
M n}3fItSJ 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
y1t,i.
[ bq"dKN` 10.清空Cookie
>slGicZ0 Cookie.Expires=[DateTime];
IP+.L]S Response.Cookies("UserName").Expires = 0
*DuP~8 ';KZ.D 11.自定义异常处理
?vg|;Q //自定义异常处理类
Wq"^ { using System;
, A;wLI using System.Diagnostics;
VL8yL`~zc. QRz5eGpW namespace MyAppException
0xzS9 {
;bYLQ /// <summary>
a=AP*adx8 /// 从系统异常类ApplicationException继承的应用程序异常处理类。
`c'R42SA /// 自动将异常内容记录到Windows NT/2000的应用程序日志
Qt"i /// </summary>
9k3RC}dEr public class AppException:System.ApplicationException
gi
JjE {
j7
\y1$w public AppException()
nrJW.F]S8[ {
P*3PDa@ if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
f;]C8/ W }
yBnUz" ^wMZG'/ public AppException(string message)
x2Dg92 {
B;r` 1
G LogEvent(message);
?7\$zn)v# }
*5q_fO w~Jy,[@n public AppException(string message,Exception innerException)
k@9CDwh*s {
sg8j}^VI LogEvent(message);
%^}|HG*i?? if (innerException != null)
^-dhz88wV {
/5j]laYK) LogEvent(innerException.Message);
a4x(lx& }
MBO>.M$B }
xMD]b >/9on. //日志记录类
yN9setw*,M using System;
RZTC+ylj using System.Configuration;
R[f@g;h using System.Diagnostics;
LHHDD\X using System.IO;
aJSBG|IC using System.Text;
`l}+BI`4 using System.Threading;
BB3wG*q SoNT12> namespace MyEventLog
QO <.l`F {
3;f}w g /// <summary>
'FwNQz zt /// 事件日志记录类,提供事件日志记录支持
uM@ve(8\ /// <remarks>
x|U[|i,; /// 定义了4个日志记录方法 (error, warning, info, trace)
/}R*'y /// </remarks>
#mW#K
/// </summary>
TA>28/U# public class ApplicationLog
&0JCZ/e {
nx|b9W< /// <summary>
"XWO#,Ue /// 将错误信息记录到Win2000/NT事件日志中
zz1]6B*eX /// <param name="message">需要记录的文本信息</param>
1D2Yued /// </summary>
,&0iFUwN_ public static void WriteError(String message)
Or"+d 5 {
Usf7
AS= WriteLog(TraceLevel.Error, message);
w/Y6m.i1 }
@{o3NR_ W'f)W4D$6 /// <summary>
i3U_G^8 /// 将警告信息记录到Win2000/NT事件日志中
%C~LKs5oH /// <param name="message">需要记录的文本信息</param>
k/.a
yLq /// </summary>
!R3ZyZcX public static void WriteWarning(String message)
ibv.M= {
H*vd WriteLog(TraceLevel.Warning, message);
Cbjx{ }
< SvjvV .Uh|V- /// <summary>
mH5[(? /// 将提示信息记录到Win2000/NT事件日志中
T5? eb" /// <param name="message">需要记录的文本信息</param>
k C=h[<' /// </summary>
be+tAp` public static void WriteInfo(String message)
D5jZ;z} {
o 12wp WriteLog(TraceLevel.Info, message);
aT20FEZ; }
z P=3B%$ /// <summary>
zjUT:#(k /// 将跟踪信息记录到Win2000/NT事件日志中
%fB!XCW /// <param name="message">需要记录的文本信息</param>
9P\R?~3 /// </summary>
K4j2xSGeo public static void WriteTrace(String message)
q.Vcb!*$ {
7) WriteLog(TraceLevel.Verbose, message);
UQ.DKUg }
hWfC"0 f1TYQ?e /// <summary>
CZ}%\2>-v /// 格式化记录到事件日志的文本信息格式
VZEDBZ x* /// <param name="ex">需要格式化的异常对象</param>
,B||8W9 /// <param name="catchInfo">异常信息标题字符串.</param>
Fv2U@n6'v /// <retvalue>
I'a&n}jx /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
O+*<^*YyD /// </retvalue>
jb0LMl}/A /// </summary>
-:!FQ'/7E public static String FormatException(Exception ex, String catchInfo)
Xi"<'E3_ {
#xe-Yw1! StringBuilder strBuilder = new StringBuilder();
HG:9yP<,o if (catchInfo != String.Empty)
@&}~r {
$C`YVv%?0 strBuilder.Append(catchInfo).Append("\r\n");
Fa^I 1fk }
O YayTKxN strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
_0
$W;8X return strBuilder.ToString();
Ry4`Q$=: }
tk~<tqMq U[WR?J4~LX /// <summary>
3v@Y"I3; /// 实际事件日志写入方法
H*V Z&{\7 /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
>TB Rp,;r /// <param name="messageText">要记录的文本.</param>
m8C
scCZ} /// </summary>
Mi2lBEu, private static void WriteLog(TraceLevel level, String messageText)
uZkh. 0yB {
_MST8 try
PR;A 0
{
$hE,BeQ EventLogEntryType LogEntryType;
4}MZB*);0 switch (level)
NI33lp$V {
VVVw\|JB> case TraceLevel.Error:
PDtLJt$ LogEntryType = EventLogEntryType.Error;
{j4J(dtO break;
e!.r- v9 case TraceLevel.Warning:
fd /?x^Z LogEntryType = EventLogEntryType.Warning;
xYl ScM_~ break;
-wUw)gJbM case TraceLevel.Info:
o.M.zkP a LogEntryType = EventLogEntryType.Information;
mmx;Vt$i break;
_{ f7e^; case TraceLevel.Verbose:
)9?
^;HS LogEntryType = EventLogEntryType.SuccessAudit;
C
Ch38qBp break;
+VdC g_ default:
^7$V>| LogEntryType = EventLogEntryType.SuccessAudit;
EhK5<v} break;
XX;MoE~MM }
usz H1@g' 0DgEOW9H EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
0gOB$W //写入事件日志
HI*j6H?\ eventLog.WriteEntry(messageText, LogEntryType);
!3T,{:gyrI ,~^BoH} }
{c\KiWN catch {} //忽略任何异常
mb_~
"}A }
o u*`~K|R } //class ApplicationLog
HDV$y=oHh }
0
$_0T cBz_L"5vr[ 12.Panel 横向滚动,纵向自动扩展
R#w9%+ <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
$9m>(b/;n |JRaskd 13.回车转换成Tab
<$ oI <script language="javascript" for="document" event="onkeydown">
( V^C7ix: if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
b am*&E%0K event.keyCode=9;
Z9vJF.clO </script>
[S#QGB19 >UDb:N[ onkeydown="if(event.keyCode==13) event.keyCode=9"
Wi3St`$ +(qs{07A$ 14.DataGrid超级连接列
+PGtO9}B DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
3I%F,-r @ - _lw 15.DataGrid行随鼠标变色
A:5B6Z private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
#mvOhu {
,[t>N>10TH if (e.Item.ItemType!=ListItemType.Header)
v#WD$9QWs {
q/l@J3p[qm e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
R}VEq gq e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
F3
z:|sTqc }
"- XJZ;5 }
NwB;9ZhZ NP?hoqeKs 16.模板列
@/yJTMcf <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
Zwxu3R_ <ITEMTEMPLATE>
q;0QI{:5v <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
;*=MI/"N </ITEMTEMPLATE>
~w9.}
</ASP:TEMPLATECOLUMN>
#HF;yAc #mK?K <ASP:TEMPLATECOLUMN headertext="选中">
hfQx$cv6 <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
\yNe5 <ITEMTEMPLATE>
4(O;lVT} <ASP:CHECKBOX id="chkExport" runat="server" />
s_`=ugue </ITEMTEMPLATE>
k5ZkD+0Jo <EDITITEMTEMPLATE>
`SH#t3
5, <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
oM4Q_A n </EDITITEMTEMPLATE>
>L {s[pLJ </ASP:TEMPLATECOLUMN>
_}RzJKl@ =i:6&Y~VGq 后台代码
J0Ik@ protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
tP;^;nw {
f~{@(g&Gl //改变列的选定,实现全选或全不选。
y%4G[Dz CheckBox chkExport ;
1p |}=R if( CheckAll.Checked)
vbT,!
cEm {
^:F |2 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
U9ZWSDs {
yQ{xRtNO chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
3$Y(swc chkExport.Checked = true;
,j|9Bs }
JVx
,1lth }
uv$t>_^ else
?
pkg1F7 {
~Vf+@_G8` foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
1O{x9a5Z?O {
7ga|4j3% chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
5^W},:3R chkExport.Checked = false;
Sgy_?Y }
Jfs$VGZP; }
Pm*N!:u }
n fU\l< B}y`E
< 17.数字格式化
!J@!P?0. C /18VQ 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
vsU1Lzna6@ <%#Container.DataItem("price","{0:¥#,##0.00}")%>
v2tKk^6`(i wf[B -2q) int i=123456;
8H})Dq%d 7 string s=i.ToString("###,###.00");
sVjM^y24 ("
,(@nS 18.日期格式化
Oi~]~+2 paG^W&`; 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
sMhUVc4 /v^1/i 显示为: 2004-8-11 19:44:28
k25:H[ =eNh))] 我只想要:2004-8-11 】
a?]"|tQ' <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
;E{k+vkqy j>KJgSs]&\ 应该如何改?
'Lb-+X, ?z]hYsy 【格式化日期】
-(Y( K!n %Gk?f=e 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
(g8<"<
N? =ZaTD-%id 【日期的验证表达式】
ee0)%hc1t viP.G/(\] A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
t"]+}]O ^((\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})))?$
t|ih{0 _ 3l ci B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
tAM t7p- ^\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]))$
~H)s>6>#v \ $PB~-Z 【大小写转换】
9ne13qVm+ HttpUtility.HtmlEncode(string);
e{<r<]/j HttpUtility.HtmlDecode(string)
('u\rc2R {xGM_vH1 19.如何设定全局变量
PqOPRf 4%(\y"T Global.asax中
[A.ix}3mm scsN2#D7U/ Application_Start()事件中
0F495'*A +mgmC_Q(0 添加Application[属性名] = xxx;
BcfW94 { vf"`#Q9 就是你的全局变量
`~hB-Z5dI /7)l 22< 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
L/U^1=Wi*O nX|f?5 O HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
S?M'JoYy C " W, 【ASPNETMENU】点击菜单项弹出新窗口
b,8\i|*!f `=zlS"dQ
在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
qkEre <?xml version="1.0" encoding="GB2312"?>
%rmn+L),; <MenuData ImagesBaseURL="images/">
\.`;p <MenuGroup>
Pr%Y!| <MenuItem Label="内参信息" URL="Infomation.aspx" >
m@z.H ; <MenuGroup ID="BBC">
YA:7^-Bv <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
i`Tp +e@a> <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
w'/Mn+ ......
][jW2;A
l=*60Ag\J~ 最好将你的aspnetmenu升级到1.2版
a%"27
n(M !\DlX| 21.读取DataGrid控件TextBox值
|\lsTY&2 foreach(DataGrid dgi in yourDataGrid.Items)
fnwhkL#8 {
~q.a<B`,t TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
9uNkd2# tb.Text....
kma)DW }
/5l"rni GbLuXU 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
@&AUbxoj ?OYK'p.
〖思归〗
<:,m <asp:TemplateColumn HeaderText="数量">
^{IF2_h" <ItemTemplate>
3($ cBC <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
$E j;CN59 onkeyup="javascript:DoCal()"
$mV1K)ege />
907N;r VDyQv^=# <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
k`5jy~; </ItemTemplate>
"x+o(jOy </asp:TemplateColumn>
1^x"P #u #s\HiO$BT <asp:TemplateColumn HeaderText="单价">
R-~ZvVw7L <ItemTemplate>
(SEE(G35 <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
bK\Mn95] onkeyup="javascript:DoCal()"
|[RoR />
YPV@/n[N /Vg=+FEO <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
j;GH|22 S[2uez` </ItemTemplate>
)\qA[rTG </asp:TemplateColumn>
C
V{kP8# . paA0j <asp:TemplateColumn HeaderText="金额">
m>H+noc^ <ItemTemplate>
?)_?YLi <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
y*BS
%xTF </ItemTemplate>
?YeUA =[MC </asp:TemplateColumn><script language="javascript">
eWgqds function DoCal()
GQ@`qYLZ+ {
j.?c~Fh var e = event.srcElement;
al<;*n{/ var row = e.parentNode.parentNode;
ji|+E`Nii var txts = row.all.tags("INPUT");
_6tir'z if (!txts.length || txts.length < 3)
o4%H/|Oq. return;
/e2CB "c ^n5rUwS> var q = txts[txts.length-3].value;
nE2w? var p = txts[txts.length-2].value;
bvxol\7 ; @d+NeS if (isNaN(q) || isNaN(p))
,EE,W0/zzM return;
YR 5C`o P1r)n{; q = parseInt(q);
vky@L! &, p = parseFloat(p);
D<16m<b %OIJ. txts[txts.length-1].value = (q * p).toFixed(2);
7CK3t/3D }
B$Z%_j& </script>
z154lY}K u{6b>c|,X t-;zgW5mwF iFJ1}0<(x ou{}\^DgQ 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
\6{w#HsP8 page_load
:aIS>6 page.smartNavigation=true
RjcU0$Hi V!{}%;f 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 ?
fj7\MTy private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
vhEqHjR: {
2`Ojw_$W7 for(int i=0;i<e.Item.Cells.Count-1;i++)
=ObI if(e.Item.ItemType==ListItemType.EditType)
/.1yxb#Z?, {
>!D^F]CH e.Item.Cells.Attributes.Add("Width", "80px")
ef Moi 'v }
HGwSsoS }
Q{:5gh c*k%r2' 26.对话框
]T?Py) private static string ScriptBegin = "<script language=\"JavaScript\">";
)F$<-0pT private static string ScriptEnd = "</script>";
I1a>w=x!+ MJzY| public static void ConfirmMessageBox(string PageTarget,string Content)
M MQ^&!H {
g5YDRL!Wh string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
$ #*";b)QY @U 6jd4?) ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
3w>S?"W# mw\
z' Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
:j)v=qul ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
v7h!'U[/ //Response.Write(strScript);
YUGEGXw }
H,{WrWA xk#q_!(j 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
@{X<|,W9w J[k,S(Y 1.1 取当前年月日时分秒
G0izZWc currentTime=System.DateTime.Now;
PX} ~ nB &[R 1.2 取当前年
z>6hK:27 int 年= DateTime.Now.Year;
4GN #hQ#_7 1.3 取当前月
NKSK+ll2 int 月= DateTime.Now.Month;
;UAi>//# gfW_S&&q 1.4 取当前日
UGb<&) int 日= DateTime.Now.Day;
YcmLc)a7 ~~B`\!n7 1.5 取当前时
t++
a int 时= DateTime.Now.Hour;
5Y3L N|N#- 1.6 取当前分
s2X<b
` int 分= DateTime.Now.Minute;
S#:yl>2 TpSv7k T] 1.7 取当前秒
}g9g]\.!a int 秒= DateTime.Now.Second;
e!B>M{ ^E#i5d+'N 1.8 取当前毫秒
.XVW2ISv int 毫秒= DateTime.Now.Millisecond;
it#,5#Y: \ ";^nk* 28.自定义分页代码:
n9w(Z=D\ na4^>:r~ 先定义变量 :
u^ 3,~:E public static int pageCount; //总页面数
eVetG,[" public static int curPageIndex=1; //当前页面
6z'3e\x SZ&I4- 下一页:
7:S4 Ur if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
hHsN(v {
Po1/_#mu DataGrid1.CurrentPageIndex += 1;
0XWhSrHM curPageIndex+=1;
mH,L,3R;R }
JS^QfT,zE l} =@9A@ bind(); // DataGrid1数据绑定函数
v\3
\n3[u ,8`CsY^1 上一页:
;S5J"1)O~ if(DataGrid1.CurrentPageIndex >0)
MV?#g-5 {
SqosJ}K DataGrid1.CurrentPageIndex += 1;
0^m`jD curPageIndex-=1;
H5)8TR3La }
(oxMBd+n1 0zHMtC1, bind(); // DataGrid1数据绑定函数
|lG7/\A J/(^Z?/~P! 直接页面跳转:
w~%Rxdh?8W int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
EW~M,+? c]+uj q if(a<DataGrid1.PageCount)
Sp]u5\ {
E |K|AdL this.DataGrid1.CurrentPageIndex=a;
^Mm sja5K }
a`*Dq"9pV Aw)I:d7F bind();
?heg_~P !XqU'xxC 29.DataGrid使用:
2e<u/M21> y7ZYo7avg 添加删除确认:
_Oc(K
"v private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
_wp_y-" {
+.2OZ3( foreach(DataGridItem di in this.DataGrid1.Items)
Q^{XM {
5I6u 2k3 if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
|\<L7|hb9 {
8:sQB%BB ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
]/6i#fTw }
X? l5} }
/_D_W,#P }
3Ow bU t8ZzBD!dP 样式交替:
8n"L4jb(: ListItemType itemType = e.Item.ItemType;
{bP
)Fon [lz#+~rOS if (itemType == ListItemType.Item )
\n<9R8g5 {
mFgrT e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
/iw$\F |8 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
35KRJY# }
:lBw0{fP else if( itemType == ListItemType.AlternatingItem)
)C>8B`^S {
#;])/8R% e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
NyR,@n1 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
[e f&|Pi- }
^iqy|zNtn |*%i]@V= 添加一个编号列:
+ usB$=kJ DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
gA:unsI DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
)&s9QBo{b Mc9J Fzp for(int i=0;i<dt.Rows.Count;i++)
1'YUK"i {
=1+/`w dt.Rows["number"]=(i+1).ToString();
X-y3CO:&@h }
c\le8C3 ;wa#m1 DataGrid1.DataSource=dt;
L-DL)8;` DataGrid1.DataBind();
P}=U
#AV4 '>k1h.i DataGrid1中添加一个CheckBox,页面中添加一个全选框
yXT.]%) private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
+.-g`Vyz* {
cb5T-'hY
foreach(DataGridItem thisitem in DataGrid1.Items)
y!VL`xV {
PS3jCT ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
BIXbdo5F }
O<P(UT" }
VVw5)O1' Y3JIDT^ 将当前页面中DataGrid1显示的数据全部删除
:!/ (N foreach(DataGridItem thisitem in DataGrid1.Items)
U8a5rF>< {
qs>&Xn if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
GDQQ4-|O {
&>xz string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
k![oJ.vHD Del (strloginid); //删除函数
\OwCZ!`7i }
s=>^ 8[0O }
"BZL*hHq ENy$sS6[D 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
jx#9
yioX^`Fc(~ 在Application_Start中添加以下代码:
)4R[C={ Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
*M-'R*Np AppSettings["ConnStr"].ToString();
&fW'_,- K]&i9`>N 31. 变量.ToString()
}Ud'j'QMy Ce/D[% 字符型转换 转为字符串
/V }Z,'+ 12345.ToString("n"); //生成 12,345.00
FA{'Ki` 12345.ToString("C"); //生成 ¥12,345.00
meYGIP:n 12345.ToString("e"); //生成 1.234500e+004
}t*:EgfI 12345.ToString("f4"); //生成 12345.0000
+GEdVB 12345.ToString("x"); //生成 3039 (16进制)
X#o<)) 12345.ToString("p"); //生成 1,234,500.00%
?
=I']$MH 73l,PJ 32、变量.Substring(参数1,参数2);
~t<uX "K Fh4Exl@6 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);
Z^c\M\`7 c-* *~tb( 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)
>c$3@$ <SCRIPT language="javascript">
`LNKbTc[m <!--
b$sT`+4q function gook(pws)
|j4p {
i3cMRcS; frm.submit();
K!8l!FFl }
]sI\.a //-->
\c1>15 '=(D7F; </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
8Oa+,?<0x <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
K{9 <tr>
+k V$ @qH <td>
)"J1ET,z <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
uFuP%f!yY <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
(
6ucA <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
WidLUv y!T8( <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
,n`S
, <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
uR.`8s| 4|UtE<<b </td>
&\
K ?:6w6GwAA </tr>
Bkg./iP5x -b)3+#f </form>
+R_s(2vz _zkTx7H 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。
*xN?5u% +F~B"a 下面是获取用户输入的登陆信息的代码:
:kC*<f\ string name;
!+DhH2;)F name=Request.QueryString["EmailName"];
o(C;;C(*{ jW{bP_," try
XePGOw))O {
eH~T PH int a=name.IndexOf("@",0,name.Length);
rP#&WSLVj f_user.Value=name.Substring(0,a);
</b_Rar f_domain.Value=name.Substring(a+1,name.Length-(a+1));
%pLqX61t= f_pass.Value=Request.QueryString["Psw"];
S263h(H }
Gr'|nR8 NZ?dJ"eq7 catch
UgD)O:xaU {
8@
f+?g*i Script.Alert("错误的邮箱!");
jhkXU+4 Server.Transfer("index.aspx");
7d/I"?=|rA }