1. 打开新的窗口并传送参数:
H>-{.E1bG kD((1v*D$ 传送参数:
j:^gmZ;J response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
{t]8#[lo md/h\o& 接收参数:
oGt2n: string a = Request.QueryString("id");
x4?g>v*J string b = Request.QueryString("id1");
PT4iy< >LVGNicQ 2.为按钮添加对话框
=66'33l2 Button1.Attributes.Add("onclick","return confirm(’确认?’)");
$B]_^ button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
*A0d0M]cg
LGYg@DR 3.删除表格选定记录
, $cpm=1 int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
x-q_sZ^8 string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
~*tn|?% dTwYDV}: 4.删除表格记录警告
Jgq#m~M6 private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
9!dG Xq {
M~.1:%khM switch(e.Item.ItemType)
.W\x{h {
*3fhVl=8^* case ListItemType.Item :
pMf
?'l case ListItemType.AlternatingItem :
.kfx\,lgm case ListItemType.EditItem:
eyn-bw TableCell myTableCell;
[z'jL'\4 myTableCell = e.Item.Cells[14];
/3;]e3x LinkButton myDeleteButton ;
3/,}&SX myDeleteButton = (LinkButton)myTableCell.Controls[0];
"9NWsy}<c myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
\[AJWyP break;
Ia[<;":U default:
=9:gW5F69 break;
|[)pQGw }
L=I;0Ip9y /1xBZfrN }
Y3H5}4QD Wo5%@C#M 5.点击表格行链接另一页
c1
j@*6B private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
*y|zF6 {
_9<Mo;C //点击表格打开
d@ ]N if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
nPjK=o`KR e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
UsdMCJ&G }
qCF&o7*oN HNLr}
Y j 双击表格连接到另一页
rrG}; A x-b}S1@ 在itemDataBind事件中
R_ )PbFw if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
nx%eq,Pq {
+&<k}Mz string OrderItemID =e.item.cells[1].Text;
00yWk_w ...
r,:acK e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
mA^3?yj }
tY#Zl 54~{ Th$xk9TK^@ 双击表格打开新一页
CQ7NQ^3k if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
4,BJK`{ {
=JxEM7r string OrderItemID =e.item.cells[1].Text;
t~":'le`zr ...
BQ B<+o' e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
ZWKvz3Wt }
9I''$DVf *]!rT&E ★特别注意:【?id=】 处不能为 【?id =】
g@Rs.Zq 6.表格超连接列传递参数
(U\D7ItMG <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
VLoRS) <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
$lAdh xE!b) @>S 7.表格点击改变颜色
}nSu7)3$B if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
alBnN<UM {
ant2];0p e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
3\cx(
this.style.color=’buttontext’;this.style.cursor=’default’;");
$f>(TW }
^AERGB\36 &>G8DvfJ9 写在DataGrid的_ItemDataBound里
G2b"R{i/, if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
tTh4L8fO {
G3h"Eo?>g e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
;Eh"]V,e this.style.color=’buttontext’;this.style.cursor=’default’;");
tvJl&{-OX e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
<&bBE"U4 }
{aUv>T"c "~Zdv}^xS SL
+\{V2 8.关于日期格式
ZP-9KA$" O3pd5&^g 日期格式设定
F*-'8~T DataFormatString="{0:yyyy-MM-dd}"
ezri9\Ju XinKG<3! 我觉得应该在itembound事件中
`G=+qti e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
z)Yb9y>2 nP|ah~
q 9.获取错误信息并到指定页面
WcpH="vm _,I~1" 不要使用Response.Redirect,而应该使用Server.Transfer
B[2t.d;h w7 \vrS>& e.g
`S4G+j>u6 // in global.asax
+?{LLD*2e protected void Application_Error(Object sender, EventArgs e) {
-iFFXESVX if (Server.GetLastError() is HttpUnhandledException)
RN;#H_
q Server.Transfer("MyErrorPage.aspx");
e-.(O8 Ec }9R3 m //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
;Rm';IW$
}
>
kwhZ/x = \K/ulZo 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
A{\DzUV9, G/w@2lYx 10.清空Cookie
L3j
~O oo Cookie.Expires=[DateTime];
?DnQU"_$ Response.Cookies("UserName").Expires = 0
0BAZWm QD1&"T<.d. 11.自定义异常处理
*$/Go8t4u //自定义异常处理类
uwt29 using System;
"u{ymJ]t using System.Diagnostics;
u{dkUG1ia C[+?gQJ[9 namespace MyAppException
VRHS 4 {
YeB C6`7y /// <summary>
J|cw9u /// 从系统异常类ApplicationException继承的应用程序异常处理类。
&?gcnMg$,J /// 自动将异常内容记录到Windows NT/2000的应用程序日志
$lJ!f /// </summary>
Lf{pTxKr public class AppException:System.ApplicationException
w2U]RI\?2 {
UY:Be8C A public AppException()
U<'$ \P {
xx?0Ftuq if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
g26 l:1P }
/N@NT/.M< Yt r*"- public AppException(string message)
D^{jXNDNO {
dO-Zj#%7z8 LogEvent(message);
ADMeOdgca }
*6v5JH&K dE(d'*+a public AppException(string message,Exception innerException)
]!@!qp@ {
N0ZD+ LogEvent(message);
h@s i)5"
if (innerException != null)
V7+/|P_ {
O[=W%2I!i LogEvent(innerException.Message);
S:c
lyx }
C{6m?6 }
~Oi.bP<, lI5>d(6p //日志记录类
5)w;0{X!P using System;
hiWs:Yq using System.Configuration;
uHTm using System.Diagnostics;
zK*i:(>B using System.IO;
**ls 4CE< using System.Text;
?W&ajH_T using System.Threading;
8JO(P0aT \<b42\a} namespace MyEventLog
Lf8{']3 {
14y>~~3C4 /// <summary>
'RR,b*Ql /// 事件日志记录类,提供事件日志记录支持
?Y9VviC /// <remarks>
B^x}=Z4 /// 定义了4个日志记录方法 (error, warning, info, trace)
Fk?KR /// </remarks>
HA0yX?f] /// </summary>
h:vI:V[/X public class ApplicationLog
y!\q', F {
qmnW /// <summary>
,w_C~XN$t /// 将错误信息记录到Win2000/NT事件日志中
g;y*F;0@ /// <param name="message">需要记录的文本信息</param>
5WtI.7r /// </summary>
&hzr(v~; public static void WriteError(String message)
1_LGlu~& {
C,{ Ekbg WriteLog(TraceLevel.Error, message);
)/{~&LU }
A{52T]9X 9O:-q[K** /// <summary>
5)M#hx%]# /// 将警告信息记录到Win2000/NT事件日志中
o^BX:\} /// <param name="message">需要记录的文本信息</param>
Vb~;"WABo /// </summary>
l+O\oD?- public static void WriteWarning(String message)
b28C( {
AE%zqvp> WriteLog(TraceLevel.Warning, message);
' PmBNT }
~hU^5R-% 'W[Nr /// <summary>
CWnRRZ}r /// 将提示信息记录到Win2000/NT事件日志中
JZD&u6tB /// <param name="message">需要记录的文本信息</param>
c$)!02 /// </summary>
zM'2opiUY public static void WriteInfo(String message)
gac/%_-HH7 {
'Ub\8<HfJU WriteLog(TraceLevel.Info, message);
E^m2:J]G }
(DTkK5/% /// <summary>
IPnx5#eB
/// 将跟踪信息记录到Win2000/NT事件日志中
Ly6) ,[q~ /// <param name="message">需要记录的文本信息</param>
_Tma1~Gq /// </summary>
0O?!fd n public static void WriteTrace(String message)
bj 0-72V {
W-vEh WriteLog(TraceLevel.Verbose, message);
X""}]@B9z }
jt&rOPL7 4eS(dPI0 /// <summary>
L4Si0 K /// 格式化记录到事件日志的文本信息格式
|C\XU5} /// <param name="ex">需要格式化的异常对象</param>
QWK\6 /// <param name="catchInfo">异常信息标题字符串.</param>
}h\]0'S~J~ /// <retvalue>
4&E&{<; /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
p,#**g: /// </retvalue>
e&=T` /// </summary>
5U/C
0{6 public static String FormatException(Exception ex, String catchInfo)
p%CcD]o {
y~+U(-&. StringBuilder strBuilder = new StringBuilder();
Y!CGuLHL`[ if (catchInfo != String.Empty)
})ic@ Mmd$ {
$
?YSAD1 strBuilder.Append(catchInfo).Append("\r\n");
%XZdz=B }
0I>[rxal strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
9 N@N U:M+ return strBuilder.ToString();
4iZ7BD }
T@DT|lTI ww~gmz /// <summary>
}Ym~[S*x /// 实际事件日志写入方法
BoPJ;6?>} /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
B,ZLX/c9
/// <param name="messageText">要记录的文本.</param>
#^<Rx{ /// </summary>
EeS VY private static void WriteLog(TraceLevel level, String messageText)
$:0?"?o); {
<ApzcyC
try
_l](dqyuN( {
n6
AP6PK7 EventLogEntryType LogEntryType;
b/'RJQSAc switch (level)
q,_ 1?A) {
7j\jOklV case TraceLevel.Error:
N>+L?C LogEntryType = EventLogEntryType.Error;
\-)augq([ break;
[+4--#&{ case TraceLevel.Warning:
&V7{J9 LogEntryType = EventLogEntryType.Warning;
/ 9soUt break;
8E\6RjM case TraceLevel.Info:
2sXX0kq~V LogEntryType = EventLogEntryType.Information;
`n~bDG> break;
ngQ] case TraceLevel.Verbose:
!4!Y~7sI"\ LogEntryType = EventLogEntryType.SuccessAudit;
\Y}nehxG@ break;
/g]m,Y{OI default:
RU GhhK LogEntryType = EventLogEntryType.SuccessAudit;
npdpKd+*K" break;
{!7 ^w }
+"2IQme5 i^u5j\pfY* EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
l+i9)Fc<i //写入事件日志
!3#*hL1fy eventLog.WriteEntry(messageText, LogEntryType);
"]D2}E>U; 6/eh~ME= }
F;_L/8Ov1 catch {} //忽略任何异常
X{bqG]j }
uE{nnNZy } //class ApplicationLog
vOYG&)Jm }
B*j
AD2 2x&mJ}o#k 12.Panel 横向滚动,纵向自动扩展
vFGFFA/K}N <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
kkE1CHY !&OybjQ 13.回车转换成Tab
gsp|?)]x <script language="javascript" for="document" event="onkeydown">
Jri"Toz0 if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
)mMHwLDwH event.keyCode=9;
_Tj` </script>
jB!Q8#&Q .ahYjn onkeydown="if(event.keyCode==13) event.keyCode=9"
;.P9t`* ]za1=~[ 14.DataGrid超级连接列
AT4G]pT DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
`FL!L59nz RtVG6'Y 15.DataGrid行随鼠标变色
hZ@Wl6FG; private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
Fi^Q]9.@{ {
@.Pe.\Z if (e.Item.ItemType!=ListItemType.Header)
?1u2P$d {
]MXeWS( e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
Z6I^HG{: e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
~&Gw[Nd1 }
wx|eO[14 }
b:uMON,H Q(Dp116 16.模板列
L0HkmaH <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
N\OeWjA F <ITEMTEMPLATE>
&\, ZtaB <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
>
%U </ITEMTEMPLATE>
H,H=y}, </ASP:TEMPLATECOLUMN>
wLf=a^c# GCTf/V\# <ASP:TEMPLATECOLUMN headertext="选中">
3G7Qo <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
OK}+:Y <ITEMTEMPLATE>
Zn`vL52_ <ASP:CHECKBOX id="chkExport" runat="server" />
,!?&LdPt> </ITEMTEMPLATE>
7#BpGQJQ <EDITITEMTEMPLATE>
wZA(><\ <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
K2glkGK </EDITITEMTEMPLATE>
UlN+ </ASP:TEMPLATECOLUMN>
D20n'>ddg E|jbbCZy2 后台代码
vNJ!d protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
ta-kqt!' {
jJF(*D //改变列的选定,实现全选或全不选。
Qr4c':8 CheckBox chkExport ;
Gdd lB2L)x if( CheckAll.Checked)
{-(B {
x\m !3 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
SBY
{
*hp3w chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
W:^\Oe5&a chkExport.Checked = true;
%usy`4
2 }
a0oM KGW: }
'K=n}}&: else
> T,^n
{_v {
0b0.xz\~U foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
&?=UP4[oif {
W^Jh'^E chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
U[b$VZ} chkExport.Checked = false;
4Y[uqn[ }
8uR4ZE* }
`eat7O }
Vb`m3 OA??fb,b 17.数字格式化
mRT`'fxK P7;=rSW 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
(dxkDS-G <%#Container.DataItem("price","{0:¥#,##0.00}")%>
_[8BAm 4
|E` int i=123456;
$ 4\,a^ string s=i.ToString("###,###.00");
]C =+ &xlz80% 18.日期格式化
*OT6)]|k YH(
54R 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
z
(,%<oX |5
sI=?p&t 显示为: 2004-8-11 19:44:28
fT-yY` e5_:15%R\ 我只想要:2004-8-11 】
G9.+N~GZ. <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
gQJ y"f %.kJ@@_e 应该如何改?
k{3:$,
b QQ4
&,d 【格式化日期】
hVe@:1og# 8kz7*AO
取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
Q]7Rqslz opK=Z 【日期的验证表达式】
G!J{$0. x;,H>!r"i A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
}\E2Z[ ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
smLXNO [.O3z*[9# B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
CY&Z*JI"'B ^\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]))$
P%8zxU; %,-oxeM1u 【大小写转换】
^w eU\ HttpUtility.HtmlEncode(string);
@tvAI2W HttpUtility.HtmlDecode(string)
]g
jhrD }4PIpDL 19.如何设定全局变量
XY]|OZ7( @<5?q:9.8 Global.asax中
0s"g%gq| ppt`5F O Application_Start()事件中
n%lY7.z8d _u$X.5Q; 添加Application[属性名] = xxx;
io_4d2uBh _q >>]{5 就是你的全局变量
/=9t$u| 8-Ik .,} 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
je6H}eWTC6 vDgf} HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
:^+ aJ] K8{U b 【ASPNETMENU】点击菜单项弹出新窗口
F2yc&mXyk k\UDZ)TQV 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
>y%*HC!G <?xml version="1.0" encoding="GB2312"?>
S&jZYq** <MenuData ImagesBaseURL="images/">
*xxG@h|5n <MenuGroup>
9IgozYj <MenuItem Label="内参信息" URL="Infomation.aspx" >
I4kN4*d!N, <MenuGroup ID="BBC">
rmj?jBKQU <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
d Ybb>rlu <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
^lCys ......
?Xscc mN #!d@;=[\ 最好将你的aspnetmenu升级到1.2版
&u-H/CU% JHpaDy* 21.读取DataGrid控件TextBox值
T!.6@g`x> foreach(DataGrid dgi in yourDataGrid.Items)
%/17K2g {
Yb8o`j+t TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
[bd fp
a tb.Text....
|tC`rzo }
_{ z.Tu )BR6?C3 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?
`a}!t=~#w md_9bq/w 〖思归〗
Pa PQ|Pwz <asp:TemplateColumn HeaderText="数量">
;EZ$8| <ItemTemplate>
P!qU8AJkt <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
N5u.V\F!z\ onkeyup="javascript:DoCal()"
Wb:jZ />
;h>s=D,r nd(O;XBI <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
v=15pW </ItemTemplate>
:*V1jp+ </asp:TemplateColumn>
"f|\":\ qP<wf=wY <asp:TemplateColumn HeaderText="单价">
n5i#GvO^ <ItemTemplate>
^v.~FFK <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
d&n&_> onkeyup="javascript:DoCal()"
b_xn80O
/>
qSh^|;2?R gR)T(%W <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
e*w2u<HP FBpf_=(_1 </ItemTemplate>
vzVXRX </asp:TemplateColumn>
Rckqr7q d4h1#MK <asp:TemplateColumn HeaderText="金额">
*C*n (the <ItemTemplate>
b]s.h8+v; <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
]9]cef=h# </ItemTemplate>
'1]Iu@? </asp:TemplateColumn><script language="javascript">
.du FMJl function DoCal()
>gqM|-uY {
W%@L7 xh var e = event.srcElement;
D_fgxl var row = e.parentNode.parentNode;
a=3?hVpB var txts = row.all.tags("INPUT");
DDh$n?2fd if (!txts.length || txts.length < 3)
YK Nz[x$| return;
g+Z~"O]$M ]F[ V6`H var q = txts[txts.length-3].value;
Ar4@7 var p = txts[txts.length-2].value;
4%do.D* A<esMDX if (isNaN(q) || isNaN(p))
p3Uus''V4 return;
Yhu
6QyRV CCp&P5[67 q = parseInt(q);
^i}*$ZC72 p = parseFloat(p);
D^1H(y2zp !e*BQ3 txts[txts.length-1].value = (q * p).toFixed(2);
V$O{s~@ti }
Tdvw7I-q </script>
L=zt\L v^_OX$=, \Q[u ?/TF n DLr17 zx 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
wIT0A-Por4 page_load
NYbeIfL page.smartNavigation=true
4#H~g
@ m:@-]U@6 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
T^9k,J(rM private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
@m14x}H {
ki`7S for(int i=0;i<e.Item.Cells.Count-1;i++)
"Xq.b"N{* if(e.Item.ItemType==ListItemType.EditType)
z Qtg]@S {
48
DC e.Item.Cells.Attributes.Add("Width", "80px")
V6%J9+DK }
Z3Le?cMt^ }
|1vikG8 {VOLUC o 4 26.对话框
}$-;P=k private static string ScriptBegin = "<script language=\"JavaScript\">";
8jyg1NN D private static string ScriptEnd = "</script>";
`8$gaA* ~x`BV+R public static void ConfirmMessageBox(string PageTarget,string Content)
afEhC0j {
'{9nQDgT string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
1muB*
O 'yG9Rt ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
z&!n'N<C (9bFIvMc Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
!9+xKr99 ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
'5j$wr zt //Response.Write(strScript);
QAiont ,! }
5x";}Vp>P 0. _)X 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
Z>GqLq\`ed <C0~7]XO 1.1 取当前年月日时分秒
%<cfjo currentTime=System.DateTime.Now;
*^]Hqf(` 0zR4Kj7EE 1.2 取当前年
EN^C'n int 年= DateTime.Now.Year;
A*)G. o: A8bDg:G1i 1.3 取当前月
Vo*38c2 int 月= DateTime.Now.Month;
^^MVd@,i Lw EI 1.4 取当前日
+D
,Nd=/ int 日= DateTime.Now.Day;
Y0`=h"g \%fl`+` 1.5 取当前时
@SA:64
9 int 时= DateTime.Now.Hour;
"/v{B?~%! ~4HS
2\ 1.6 取当前分
|y+<|fb,a int 分= DateTime.Now.Minute;
'urn5[i Jr/|nhGl5 1.7 取当前秒
CT1)tRN int 秒= DateTime.Now.Second;
fhCMbq4T
a`XXz 1.8 取当前毫秒
4,D$% . int 毫秒= DateTime.Now.Millisecond;
W10=SM} 24u;'i-y5 28.自定义分页代码:
,A`.u \f(: qF9z@a 先定义变量 :
)@"iWQ3K public static int pageCount; //总页面数
. e' vc public static int curPageIndex=1; //当前页面
$f`\TKlN L8"0o 0- 下一页:
~/0t<^ if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
Z]H`s{3 {
vb 2mY DataGrid1.CurrentPageIndex += 1;
}%z {tn curPageIndex+=1;
px!lJtvgo }
yHS=8! 8*O] bind(); // DataGrid1数据绑定函数
9H$$Og k"-2OT 上一页:
YcJZG|[ if(DataGrid1.CurrentPageIndex >0)
|TCHPKN {
6|q\ M DataGrid1.CurrentPageIndex += 1;
-8;@NAUa curPageIndex-=1;
r q2]u }
rdK=f<I] }:NE bind(); // DataGrid1数据绑定函数
2, bo 7s#,.(s 直接页面跳转:
WW5AD$P* int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
* !4r}h` ? OrRTRW if(a<DataGrid1.PageCount)
zd1X(e<|{ {
wvH=4TT=w" this.DataGrid1.CurrentPageIndex=a;
nt$VH }
-[\+~aDH, DIx!Sw7EC bind();
i"eUacBz/- Y*!J +A# 29.DataGrid使用:
j<+QGd% q/I':a[1 添加删除确认:
3C8cvi[IS private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
JO*}\Es {
,Jqi J?,4C foreach(DataGridItem di in this.DataGrid1.Items)
=pQ'wx|>| {
Uy8r
!9O if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
{FV_APL9_ {
Ja$Ple*XU8 ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
S.,om;` }
N_AAh D }
AcF6p)@_ }
P+tnXT>nE FdT@} 样式交替:
$LxfdSa ListItemType itemType = e.Item.ItemType;
;MD6iBD GEJEhwO;H if (itemType == ListItemType.Item )
5i 56J1EC {
QFn .<@ e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
R $vo e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
p#['CqP8 }
F(jvdq else if( itemType == ListItemType.AlternatingItem)
.Sz<%d7XIQ {
xiv1y4(% e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
2<18j e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
[ArPoJt }
GR@jn]50 Yv="oG!xL 添加一个编号列:
d9'gH#f? DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
&YAw~1A DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
P2lDi!q| ~0S_S +e for(int i=0;i<dt.Rows.Count;i++)
sj@B0R=Qo {
7m{YWR0 dt.Rows["number"]=(i+1).ToString();
KHK|Zu#k' }
\EP<r Aqi9@BH DataGrid1.DataSource=dt;
~_XJ v DataGrid1.DataBind();
)~(( 6?k4e xp+Z%0D DataGrid1中添加一个CheckBox,页面中添加一个全选框
{yPJYF_l private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
Iu<RwB[#Q {
Qw&It foreach(DataGridItem thisitem in DataGrid1.Items)
?Q`u\G3.m {
IF"-{@ ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
|&O7F;/_ }
z:
x|;Ps! }
-Re4G78% d(LX;sq? 将当前页面中DataGrid1显示的数据全部删除
6gUcoDD foreach(DataGridItem thisitem in DataGrid1.Items)
&y164xn'h {
s\7]"3:wD if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
UOi[#L@N {
y81B3`@ string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
l!6^xMhYk Del (strloginid); //删除函数
uif1)y`Q$C }
F\Qukn }
h]|E,!H >P@JiR<@\n 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)
^o`;C\ *b<
a@ 在Application_Start中添加以下代码:
v/\in'H~ Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
X-xN<S q AppSettings["ConnStr"].ToString();
JYE[
1M P5vxQR_*lc 31. 变量.ToString()
@j|B1:O az5 $. 字符型转换 转为字符串
b+Ly%& 12345.ToString("n"); //生成 12,345.00
+:JyXFu 12345.ToString("C"); //生成 ¥12,345.00
g\Ck!KJ/y 12345.ToString("e"); //生成 1.234500e+004
-+#QZ7b 12345.ToString("f4"); //生成 12345.0000
Vh%=JL
sK 12345.ToString("x"); //生成 3039 (16进制)
Lm-yTMNPn 12345.ToString("p"); //生成 1,234,500.00%
9DAk|K F;I % 9-R 32、变量.Substring(参数1,参数2);
Y|NL #F 8efQ-^b. 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);
/hNZ7\|P @zz4,,] 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)
G)vq+L5% <SCRIPT language="javascript">
YIb=rR[ $ <!--
3k5C;5 function gook(pws)
L=Pz0 {
3,x|w frm.submit();
n"p|tEK }
Stw%OP@? //-->
s>A!Egmo ;QRnZqSv </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
/FP;Hsw% <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
#osP"~{
<tr>
z2EZ0vZ <td>
-d|Q|zF^x <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
L)0j& <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
b.Yl0Y <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
1WArgR }ZP;kM$g <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
BqF%2{ <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
5x([fG F4Jc7k2 </td>
x4r=ENO)q V3^=Mj2" </tr>
R]s\s[B E{Gkq: </form>
A,P_| dZMOgZ.!yr 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
#Tr>[ZC M/O4JZEqh 下面是获取用户输入的登陆信息的代码:
&p."`
C string name;
r)9&'m .: name=Request.QueryString["EmailName"];
1c$<z~
UJ}Xa&*H\ try
ZQ&A'(tt4 {
%syFHUBw int a=name.IndexOf("@",0,name.Length);
M9_G f_user.Value=name.Substring(0,a);
`PV+.V} f_domain.Value=name.Substring(a+1,name.Length-(a+1));
C4Tn
f_pass.Value=Request.QueryString["Psw"];
AK7IPftlH }
H(MCY3t GT -(r+u catch
F(yx/W>Br_ {
BdK2I!mm Script.Alert("错误的邮箱!");
xK8n~.T(' Server.Transfer("index.aspx");
n$jOk
|W }