1. 打开新的窗口并传送参数:
D?)91P/R S2kFdx*Zf 传送参数:
[,3o response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
Nj5Mc>_ d0"Hu^] 接收参数:
yJ c#y string a = Request.QueryString("id");
5(^&0c>P string b = Request.QueryString("id1");
|yx]TD{~P Q.>@w<[!L 2.为按钮添加对话框
<[@AMd S Button1.Attributes.Add("onclick","return confirm(’确认?’)");
)/1AF^ E button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
>u
,Ac: xqs{d&W 3.删除表格选定记录
JQj?+PI int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
4%LG Ph string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
%YlL-*7L *8M0h9S$ 4.删除表格记录警告
<kN4@bd; private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
/ Of*II& {
J70#pF switch(e.Item.ItemType)
(,
/`*GC {
CH[U.LJQ-O case ListItemType.Item :
=J&vr case ListItemType.AlternatingItem :
'X d_8. case ListItemType.EditItem:
Ly"u }e TableCell myTableCell;
OS;qb:; myTableCell = e.Item.Cells[14];
_HW~sz| LinkButton myDeleteButton ;
epI&R) ] myDeleteButton = (LinkButton)myTableCell.Controls[0];
@e8b'w3 myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
5I`j'j break;
3}@3pVS default:
c>#T\AEkF break;
jNhiY }
h.d-a/ y3{'s>O6 }
r:]t9y>$< HT0VdvLw 5.点击表格行链接另一页
thy)J.<J private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
sG[v vm {
T2<?4^xN //点击表格打开
{VtmQU?cJ if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
cVYDO*N2T e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
B+[ri&6X\ }
M!Q27wT8O OJ^kESrm8 双击表格连接到另一页
z SDRZ! ^aYlu0Wm 在itemDataBind事件中
kH/u]+_ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
W/DSj : {
y.P Wh<dI string OrderItemID =e.item.cells[1].Text;
}K':tX? ...
Q#w mS&$f e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
&YC Z
L }
h_#x@p }%Mj`Bh 双击表格打开新一页
W^#HR if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
<qJI]P {
FcVQ_6 string OrderItemID =e.item.cells[1].Text;
P'%#B&LZo ...
dO]N&'P7 e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
R+{QZ'K.qg }
1W3+ng Wi7!J[ B ★特别注意:【?id=】 处不能为 【?id =】
~Cc%!4f' 6.表格超连接列传递参数
h,%`*Qg6 <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
W%&t[_21 <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
WzG]9$v & fy9mS 7.表格点击改变颜色
011 N if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
DQ%bcXs {
[hzw..?g e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
`W>cA64 o this.style.color=’buttontext’;this.style.cursor=’default’;");
z ntvKOIh }
m}Xb #NAF8 Q^13KWvuV 写在DataGrid的_ItemDataBound里
*Z}^T:3iw} if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
%87D(h!.I4 {
1g_p`( e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
5&A{IN this.style.color=’buttontext’;this.style.cursor=’default’;");
_G3L+St e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
dpAj9CX( }
Qp>'V<%m- 1i=lJmr 4`E[WE:Q 8.关于日期格式
bd|ZhRsL XBx&& 日期格式设定
-c%#Hd DataFormatString="{0:yyyy-MM-dd}"
3DjlX* 0\tV@ 6p2= 我觉得应该在itembound事件中
%!P^se e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
D+4oV6}~ gn82_ 9.获取错误信息并到指定页面
<&w(%<; zXX=WH 不要使用Response.Redirect,而应该使用Server.Transfer
7x>\/l( #/N;ScyUJT e.g
WAq)1gwN // in global.asax
!s^[|2D_U protected void Application_Error(Object sender, EventArgs e) {
`-_kOxe3 if (Server.GetLastError() is HttpUnhandledException)
PFR64HK2 Server.Transfer("MyErrorPage.aspx");
OVq(ulwi+ Dh+<|6mx //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
z`]sWi F0 }
QC\r|RXW #su R[K*S 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
.+3~
w =Jyi9VN=& 10.清空Cookie
.)(5F45Wg Cookie.Expires=[DateTime];
<n4?wo Response.Cookies("UserName").Expires = 0
OQnb^fabY uuaoBf 11.自定义异常处理
MZIZ"b //自定义异常处理类
#(pY~\ using System;
K92nh/}y using System.Diagnostics;
wWYo\WH' gh9Gc1tKt namespace MyAppException
Pzt5'O@dA {
cG)U01/" /// <summary>
ZuLW%z. /// 从系统异常类ApplicationException继承的应用程序异常处理类。
ol3].0Vc] /// 自动将异常内容记录到Windows NT/2000的应用程序日志
N1D{ % /// </summary>
!)r1zSY"g public class AppException:System.ApplicationException
P>U7RX
e {
uKA-<nM._c public AppException()
F ?N+ __o {
_a]0<Vm C0 if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
.n\j<Kq }
6uS;H]nd< ,vDSY N6 public AppException(string message)
z( !K8
T {
O'rz LogEvent(message);
}1kZF{KD<[ }
>mAi/TZC ew+>?a'&L public AppException(string message,Exception innerException)
m'n<.1;1{j {
YMG~k3Yb LogEvent(message);
X_HU?Q_N if (innerException != null)
:DG7Z {
f|+aa6hN
LogEvent(innerException.Message);
E!EENg }
S7v# `# }
}'`iJb\ SD_P=? //日志记录类
h"}c_lY9 using System;
u> @@ using System.Configuration;
~'#yH#o using System.Diagnostics;
M
o?y4X using System.IO;
`g+Kv&546 using System.Text;
rtxG-a56Q using System.Threading;
\yhj {QS.k 9Zj9e namespace MyEventLog
jp+s[rRc\{ {
L#k`>Qn2 /// <summary>
% <1&\5f<5 /// 事件日志记录类,提供事件日志记录支持
g0-~%A, /// <remarks>
<Z
j>} /// 定义了4个日志记录方法 (error, warning, info, trace)
w#
R0QF /// </remarks>
Oh=E! /// </summary>
*<ILSZ public class ApplicationLog
230ijq3YG {
WSxE/C|[ /// <summary>
6s.>5}M!
/// 将错误信息记录到Win2000/NT事件日志中
7`J= PG$A /// <param name="message">需要记录的文本信息</param>
^aI$97Li /// </summary>
45 B
|U public static void WriteError(String message)
wh2Ljskda8 {
b"JX6efnN WriteLog(TraceLevel.Error, message);
h+DK
.$ }
XXg~eu? 4+B&/}FDLo /// <summary>
_T.T[%-&= /// 将警告信息记录到Win2000/NT事件日志中
;9;jUQ]MyG /// <param name="message">需要记录的文本信息</param>
PfN[)s4F{R /// </summary>
':d9FzGKa public static void WriteWarning(String message)
U|~IJU3- {
AA XQ+! WriteLog(TraceLevel.Warning, message);
4N(iow4 }
Dqg01_O9O OrY^ ?E /// <summary>
VQ7A"&hh /// 将提示信息记录到Win2000/NT事件日志中
rI#,FZ /// <param name="message">需要记录的文本信息</param>
cU_:l.b /// </summary>
cqG&n0zb public static void WriteInfo(String message)
/0YO`])" {
LEd@""h WriteLog(TraceLevel.Info, message);
_ SJFuv/ }
G-[.BWQ /// <summary>
-Oplk* /// 将跟踪信息记录到Win2000/NT事件日志中
sTmdoqTK! /// <param name="message">需要记录的文本信息</param>
` InBhU> /// </summary>
lobC G public static void WriteTrace(String message)
>@0U B@ {
9jI5bi) WriteLog(TraceLevel.Verbose, message);
,5}")T["u }
E?(:9#02 ~m3Tq.sYrY /// <summary>
D[0g0>K /// 格式化记录到事件日志的文本信息格式
|.?$:D&6 /// <param name="ex">需要格式化的异常对象</param>
UO(?EELm /// <param name="catchInfo">异常信息标题字符串.</param>
SnVb D< /// <retvalue>
~o27~R ] /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
.#{m1mr /// </retvalue>
xM:9XhH1 /// </summary>
O ]!/fZ;( public static String FormatException(Exception ex, String catchInfo)
M*Ri1 {
wBz5_ OFVw StringBuilder strBuilder = new StringBuilder();
FO:k
>F if (catchInfo != String.Empty)
| Zj=E$ {
ipD/dx. strBuilder.Append(catchInfo).Append("\r\n");
a8 .x=j< }
~COd(,ul strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
=gAn;~ return strBuilder.ToString();
&hnKBr(Lw }
L=&dJpyfT 5}4>vEn /// <summary>
85rjM#~ /// 实际事件日志写入方法
oAF#bj_f /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
3vj1FbY /// <param name="messageText">要记录的文本.</param>
?t [C?{' /// </summary>
X\1.,]O > private static void WriteLog(TraceLevel level, String messageText)
8X#\T/U {
Q#PkfjXS try
AvcN, {
IoCi(N; EventLogEntryType LogEntryType;
@a}\]REn switch (level)
;<H\{w@D {
ki?ETC case TraceLevel.Error:
)sLXtV)nm6 LogEntryType = EventLogEntryType.Error;
lpnPd{kE break;
}K|40oO5 case TraceLevel.Warning:
' 1D1y' LogEntryType = EventLogEntryType.Warning;
7e=s`j break;
ZjveXrx case TraceLevel.Info:
fjLS_Q
;h LogEntryType = EventLogEntryType.Information;
C/ENJ& break;
s:*" b' case TraceLevel.Verbose:
!"SuE)WM LogEntryType = EventLogEntryType.SuccessAudit;
Lnc>O'<5P9 break;
[! YSW' default:
SquuK1P= LogEntryType = EventLogEntryType.SuccessAudit;
-"5r-q q* break;
s&L 6C[ }
zRFvWOxC\ UF;iw EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
zXGi //写入事件日志
k3UKGP1 eventLog.WriteEntry(messageText, LogEntryType);
%Krf,H b G/[mZpRT }
K?6#jT6# catch {} //忽略任何异常
]O0:0Z\ }
)|B3TjHC } //class ApplicationLog
kqZ+e/o>O9 }
~IQw?a.E w">-r}HnJ 12.Panel 横向滚动,纵向自动扩展
Y\j5{;V <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
{Z1^/Fv3 /=g$_m@yWI 13.回车转换成Tab
"f4atuuXa <script language="javascript" for="document" event="onkeydown">
S3sxK: if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
vJsx_i\i event.keyCode=9;
aH*5(E] </script>
@QAI 0ZY -op(26:W< onkeydown="if(event.keyCode==13) event.keyCode=9"
+&.wc;mi RP%7M8V){B 14.DataGrid超级连接列
kmM->v DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
C n.x:I@r dReJ;x4 15.DataGrid行随鼠标变色
]::g-&%Um private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
^ ^k]2oG {
%ql2 XAY if (e.Item.ItemType!=ListItemType.Header)
,2]a<0m {
Qn`Fq,uvL e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
v|wO qS e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
gJ?Vk<hp }
M"E7=J }
oNp(GQ@0 c3C<P 16.模板列
MXrh[QCU) <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
7
|Q;E|=-Y <ITEMTEMPLATE>
>=d%t6%( <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
*d&+?! </ITEMTEMPLATE>
8}{W.np_ </ASP:TEMPLATECOLUMN>
m!Fx# s]2_d|Y <ASP:TEMPLATECOLUMN headertext="选中">
m[D]4h9 <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
{qb2!}FQ <ITEMTEMPLATE>
Kq;s${ |G <ASP:CHECKBOX id="chkExport" runat="server" />
lR0WDJv </ITEMTEMPLATE>
&'oZ]}^0 <EDITITEMTEMPLATE>
f~w!Z <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
8'o6: </EDITITEMTEMPLATE>
fl o9iifZ </ASP:TEMPLATECOLUMN>
4 {rj 4P? 9;tY'32/ 后台代码
{vU;(eN protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
e<r}{=1w {
T[eb< //改变列的选定,实现全选或全不选。
!EB[Lutm CheckBox chkExport ;
`l+
pk% if( CheckAll.Checked)
3pjK`"Nmz\ {
1hW"#>f7 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
M7\yEi"* {
MT{ovDA]. chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
yR[htD` chkExport.Checked = true;
#SqU>R }
I3d!!L2ma }
_
cm^Fi5 else
`R,g_{Mj {
Og<nnq foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
A_2oQ* {
L<Q>:U.@\ chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
)GR4U8<>g chkExport.Checked = false;
TcOmBKps' }
@y(<4kLz }
CC,CKb }
DgODTxiX N~+ e\K6 17.数字格式化
< m/@_" w=QW8q? 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
KYR64[1 <%#Container.DataItem("price","{0:¥#,##0.00}")%>
:Hq#co Ih^ziDcW int i=123456;
Q<T+t0G\O- string s=i.ToString("###,###.00");
Uq^-km#a L'r gCOJ< 18.日期格式化
VQ^}f/A >Qx
:l#B 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
!30BR|K* T[ltOQw?Y 显示为: 2004-8-11 19:44:28
PAS0 D
# 90UZ\{"> 我只想要:2004-8-11 】
.A
apO}{ <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
[(m+Ejzi% -d_7 q 应该如何改?
n>W*y|UJ Xhp={p; 【格式化日期】
^~7ouA lky5%H 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
]4eIhj? \`Ow)t: 【日期的验证表达式】
T':} p2}w+ !U4<4<+ A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
jP}Ix8vc= ^((\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})))?$
DE!c+s_g4 R?iC"s! B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
T.pc3+B8N ^\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]))$
[(*? Y>Fh<"A|$ 【大小写转换】
jKr>Ig=$tA HttpUtility.HtmlEncode(string);
Eal*){"<,? HttpUtility.HtmlDecode(string)
cjwc:3
CM ,racmxnv 19.如何设定全局变量
kV:T2}]|H L)X[$: Global.asax中
7~!F3WT{ \EW<;xq Application_Start()事件中
nR8r$2B+t >G}g=zy@ 添加Application[属性名] = xxx;
Jsf"h-)P CkR
95* 就是你的全局变量
SaFNPnk= 9i+.iuE%Bu 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
JVR,Py:%G |syvtS{ HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
Ot;)zft /@Ec[4^=!. 【ASPNETMENU】点击菜单项弹出新窗口
D\^\_r): `rb}"V+ 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
fVz0H1\J& <?xml version="1.0" encoding="GB2312"?>
7UsU03 <MenuData ImagesBaseURL="images/">
#j4RX:T*[ <MenuGroup>
nd~O*-uYg <MenuItem Label="内参信息" URL="Infomation.aspx" >
S#*aB2ZS <MenuGroup ID="BBC">
M`p[ Zq <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
w\y) <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
7mA:~- .u ......
r<5i Y|cj&<o 最好将你的aspnetmenu升级到1.2版
gN.n_! c'
Q4Fzj0' 21.读取DataGrid控件TextBox值
om2)Cd9~7 foreach(DataGrid dgi in yourDataGrid.Items)
tL]T_]z {
d~#:t~
$, TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
;k
(M4? tb.Text....
@ RP?)*8}& }
@:t2mz:^i L~E|c/ 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
rIeOli:< yq12"Rs 〖思归〗
nQ#NW8*Fs <asp:TemplateColumn HeaderText="数量">
ZoR6f\2M <ItemTemplate>
{
t@7r <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
6[Wv g onkeyup="javascript:DoCal()"
DLO2$d />
Ie(M9QMp _b9>ZF~ <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
rA /T>ZM </ItemTemplate>
eFC~&L; </asp:TemplateColumn>
a+<{!+3v sp6A*mwl <asp:TemplateColumn HeaderText="单价">
Qv]>L4PO <ItemTemplate>
_2X6c, <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
z@[-+Q: onkeyup="javascript:DoCal()"
DFp">1@`PR />
`JcWH_[ xM?tdQ~VHY <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
6 -BC/ ^#]eCXv </ItemTemplate>
soh9Oedml- </asp:TemplateColumn>
ZG(Pz9{K cnB:bQQK8 <asp:TemplateColumn HeaderText="金额">
b\p2yJ\ <ItemTemplate>
mD7kOOMY
<asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
dy4~~~^A </ItemTemplate>
^00C"58A </asp:TemplateColumn><script language="javascript">
=>L2~>[
function DoCal()
!+(H(,gI {
=-]NAj\ var e = event.srcElement;
aSIoq}c( var row = e.parentNode.parentNode;
S|]\q-qA& var txts = row.all.tags("INPUT");
dg#w!etB if (!txts.length || txts.length < 3)
R%"'k<`# return;
PAXm :"gu=u! var q = txts[txts.length-3].value;
K_%gda|l+ var p = txts[txts.length-2].value;
HjY! ]!4p (w` j?c1 if (isNaN(q) || isNaN(p))
[I,s: mn return;
DDe`Lb%% _8e0vi!~2 q = parseInt(q);
H@'u$qr$: p = parseFloat(p);
~:99
)AOM Bh;N:{&^Eu txts[txts.length-1].value = (q * p).toFixed(2);
{bNVNG^ }
{Rq5=/b </script>
G%>M@nYUE |xrnLdng0R \lF-]vz* Bw>)gSB5$k /L=Y8tDt 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
as"@E>a page_load
@b{$s page.smartNavigation=true
E.G]T#wt0 ,zh_-2^X 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 ?
g/gaPc*86 private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
d(C5i8d {
e6Kyu* for(int i=0;i<e.Item.Cells.Count-1;i++)
QObHW[:F if(e.Item.ItemType==ListItemType.EditType)
5ljEh - {
V`}u:t7r e.Item.Cells.Attributes.Add("Width", "80px")
@zT2!C?^L }
akzKX} }
c]NZGn* 1cD 26.对话框
JvYs6u private static string ScriptBegin = "<script language=\"JavaScript\">";
gnlU private static string ScriptEnd = "</script>";
;&XC*R+ |}Z2YDwO/ public static void ConfirmMessageBox(string PageTarget,string Content)
4jW <*jM {
KgXu x-q string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
k0,]2R ;_m;:< ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
V!QC.D< {
T?1v*.[ Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
8zQN[[#n ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
o@ @| 4
F //Response.Write(strScript);
_% i!LyG }
E+J +fi (?ZS9&y} 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
Tj6kCB Se>v|6 1.1 取当前年月日时分秒
h]&o)%{4 currentTime=System.DateTime.Now;
_7
^:1i~:. p
MR4]G 1.2 取当前年
" : V@AT int 年= DateTime.Now.Year;
}brBhe8a dte-2?%~j 1.3 取当前月
f |NXibmP int 月= DateTime.Now.Month;
V5p->X2# IEY\l{s 1.4 取当前日
r ?z}TtDp int 日= DateTime.Now.Day;
S7b7zJ8A XV1XzG# C 1.5 取当前时
zZP&`#TAy int 时= DateTime.Now.Hour;
.>p.k*vU R#!Urhh 1.6 取当前分
7,Y+FZ int 分= DateTime.Now.Minute;
`o21f{1]X& nGxG! 1.7 取当前秒
T$Z}1e] int 秒= DateTime.Now.Second;
G)&!f)6 Kxi@"<`S 1.8 取当前毫秒
63kZ#5g(Dw int 毫秒= DateTime.Now.Millisecond;
TjOK8
t &;U
F, 28.自定义分页代码:
N'Vj& DWC v.c.5@%%o 先定义变量 :
*S'?u_Y7 public static int pageCount; //总页面数
h$p}/A public static int curPageIndex=1; //当前页面
4)Ew
rU qoEZ> 下一页:
.x1.` Y if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
=.qPjp_Qd {
G$2Pny<! DataGrid1.CurrentPageIndex += 1;
9/{ 8Y& curPageIndex+=1;
A@e!~ }
Uurpho_~ h{^MdYJ bind(); // DataGrid1数据绑定函数
"g5MltH @_?Uowc8 上一页:
zKThM#.Wa if(DataGrid1.CurrentPageIndex >0)
#)4p,H {
y0'WB`hNQ DataGrid1.CurrentPageIndex += 1;
I(<Trn curPageIndex-=1;
'N`x@( }
BwVq:)P/R =69sWcC8 bind(); // DataGrid1数据绑定函数
@XVx{t;g2 czK}F/Sg ` 直接页面跳转:
lU.aDmy< int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
HBA|NV3. sn+ kFvk}S if(a<DataGrid1.PageCount)
o;>qsn8 {
+ZkJ{r0,( this.DataGrid1.CurrentPageIndex=a;
IiV]lxiE] }
QT4vjz+| WLH ;{ bind();
&:~9'-O /*Gbl 29.DataGrid使用:
z6fY_LL yF-`f
_ 添加删除确认:
%&wi@ *# private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
P`y.3aK {
(]-RL
A> foreach(DataGridItem di in this.DataGrid1.Items)
ES)_X:\X?V {
eWXR #g!%> if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
Wr+1e1[ {
RtEx
WTc ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
i]& >+R<6 }
I p|[ }
=FQH5iSd }
L }R-| .f|)od[ 样式交替:
DH uUEv< ListItemType itemType = e.Item.ItemType;
h]}DMVV] dwb ^z+ if (itemType == ListItemType.Item )
()Qq7/ {
M$} AJS%8 e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
mqDI'~T9 u e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
Yw\lNhoPS }
rpEN\S%7P else if( itemType == ListItemType.AlternatingItem)
E9]*!^=/ {
PR%n>a# e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
obGvd6\ e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
$&s V.fGu }
M2nUY`%#v w`atk=K 添加一个编号列:
*P?Rucg DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
c`oW-K{ DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
+y\o^w4sT C%#u2C2 for(int i=0;i<dt.Rows.Count;i++)
W)L*zVj~ {
pz"}o#R"x dt.Rows["number"]=(i+1).ToString();
+5GPU 9k }
k|$?b7)"@ bpa'`sf DataGrid1.DataSource=dt;
6cOlY=
bn DataGrid1.DataBind();
m14'u GC [{zfI`6 DataGrid1中添加一个CheckBox,页面中添加一个全选框
BY@l:y4 private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
Yi <1z:\ {
(^58$IW71 foreach(DataGridItem thisitem in DataGrid1.Items)
zX6Q7Bc {
4r#4h4`y| ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
[J55%N;#1 }
TV/ EC#48 }
BC#O.93` whFJ] 将当前页面中DataGrid1显示的数据全部删除
4ZkaH(a1 foreach(DataGridItem thisitem in DataGrid1.Items)
Xm<|m# {
+]Ev if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
DeI3(o7 {
u[nLrEnD string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
UYzNaw4/x Del (strloginid); //删除函数
9zm2}6r4 }
QkYKm<b }
NTVaz. 9)uJ\NMy 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
At&kW3( FJBB@<>: 在Application_Start中添加以下代码:
csV3mzP Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
%zO>]f& AppSettings["ConnStr"].ToString();
H;#C NB<e /h@3R[k 31. 变量.ToString()
5yjG\~ NHe[,nIV 字符型转换 转为字符串
U#{(*)qr 12345.ToString("n"); //生成 12,345.00
WwUHHm<v 12345.ToString("C"); //生成 ¥12,345.00
u1>WG?/` 12345.ToString("e"); //生成 1.234500e+004
|O;vWn'U2 12345.ToString("f4"); //生成 12345.0000
~.z82m 12345.ToString("x"); //生成 3039 (16进制)
)"_&CYnd 12345.ToString("p"); //生成 1,234,500.00%
fr}.#~{5Y y[GqV_~?Y 32、变量.Substring(参数1,参数2);
t+M'05-U2 ;O~%y' 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
@?gRWH;Pq b"Jr_24t3v 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
QQD7NN> <SCRIPT language="javascript">
x:c'ek <!--
i?,\>LTG function gook(pws)
.R^ R|<x {
iu2O/l#r frm.submit();
Z:diM$Z?7 }
:k2J
&@8 //-->
0qm CIcg h-U]?De5\ </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
KL"_h`UW <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
6q,CEm <tr>
=Z..&H5i <td>
VO /b&% <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
g+Y &rz <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
a6?t?:~| <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
{ T<[-"h V(Cxd.u <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
|hX\ep <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
R7c42L\QA 4}Lui9 </td>
e}(8BF ,l.+$G </tr>
"G Jhx/zt ! 6R| </form>
k#Qjm9V h?vny->uJ 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
<- R% 'C @yJf 下面是获取用户输入的登陆信息的代码:
=%|f-x string name;
ZA}!Rzo name=Request.QueryString["EmailName"];
i8%Z(@_` <[=[|DS l try
8C*xrg#g: {
*%%n9T int a=name.IndexOf("@",0,name.Length);
yM7FR); f_user.Value=name.Substring(0,a);
"]q0|ZdOwH f_domain.Value=name.Substring(a+1,name.Length-(a+1));
z? GtC{L9 f_pass.Value=Request.QueryString["Psw"];
'a$/ !~X }
99n;%W> M0hR]4T catch
g!i45]6[Nw {
Z%
]LZ/O8 Script.Alert("错误的邮箱!");
%}unlSTPP Server.Transfer("index.aspx");
}H/94]~tH }