1. 打开新的窗口并传送参数:
XxV]U{i! 1`b?nX 传送参数:
GJ!usv u response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
G.L4l|%W {Ke3 接收参数:
i^j{l_-JE string a = Request.QueryString("id");
8amtTM string b = Request.QueryString("id1");
594$X@!v \,~gA
2.为按钮添加对话框
IDv@r\Xw Button1.Attributes.Add("onclick","return confirm(’确认?’)");
; <3w ,r button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
|U12fuQ !1|f,9C 3.删除表格选定记录
6?2/b`k int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
UGl}=hwKkG string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
;0@"1` xOP\ +( 4.删除表格记录警告
tw^V?4[Miu private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
t'~:me! {
Z3 &8(vw switch(e.Item.ItemType)
{?, :M {
9'O<d/xj/ case ListItemType.Item :
J0^p\mG case ListItemType.AlternatingItem :
vw3%u+Z& case ListItemType.EditItem:
Bf[D&O TableCell myTableCell;
GMd81@7 myTableCell = e.Item.Cells[14];
MiN68x9 LinkButton myDeleteButton ;
gn7pIoN myDeleteButton = (LinkButton)myTableCell.Controls[0];
76xgExOU?C myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
=yk#z84< break;
;9d(GP}eE default:
V.;0F%zks5 break;
N\mV+f3A@, }
k?1cxY s %x L3=4\ }
POx~m :N(L7&< 5.点击表格行链接另一页
61CNEzQ private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
HnZrRHT0 {
B7va#'ne4{ //点击表格打开
_k
_F if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
eF!c<
Kcr e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
;p1%KmK3 }
0A\o8T.12 F^KoEWj[H 双击表格连接到另一页
?^0#:QevC ">NBPanJ 在itemDataBind事件中
'Zk&AD ~ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
rXvvJIbi {
Ws}u4t string OrderItemID =e.item.cells[1].Text;
foaNB=, ...
(iH5F9WO e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
$O7>E!uVD }
65qH v='7.A 双击表格打开新一页
j @sd x)1+ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
si0jXue~j\ {
XW`&1qx string OrderItemID =e.item.cells[1].Text;
^i#F+Q`1 ...
v-4eN1OS e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
)";g*4R[ }
?\.P g7#_a6 ★特别注意:【?id=】 处不能为 【?id =】
,!PNfJA2 6.表格超连接列传递参数
G$Z8k,g+<7 <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
(8k3z` <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
:8MpSvCV AgO:"'c 7.表格点击改变颜色
/tx_I(6F?| if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
M {_`X {
KYd2=P6 e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
@I#@%"AW this.style.color=’buttontext’;this.style.cursor=’default’;");
'9H]SEw }
MX6;ww Q{V|{yV^y 写在DataGrid的_ItemDataBound里
T<?JL.8 g_ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
(N0G[(> {
N^CD4l e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
/3'>MRzR this.style.color=’buttontext’;this.style.cursor=’default’;");
v6TH- e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
$ v$~. }
E.4`aJ@>d <wc=SMmO ?,TON5Fl- 8.关于日期格式
A1>R8Zuhy !SKEL6~7
日期格式设定
oF)+f4 DataFormatString="{0:yyyy-MM-dd}"
/ IAK'/ YM/^-[k3 我觉得应该在itembound事件中
gey`HhZp) e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
s3Y
\,9\ ZOyq{w!2 9.获取错误信息并到指定页面
"{AS5jw I4gyGg$H 不要使用Response.Redirect,而应该使用Server.Transfer
YjoN:z`b r68'DJ&m3 e.g
teQ%t~PJ-& // in global.asax
66Huqo protected void Application_Error(Object sender, EventArgs e) {
3QZw if (Server.GetLastError() is HttpUnhandledException)
$yI!YX& Server.Transfer("MyErrorPage.aspx");
;Rt?&&W Skq%S`1%Q //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
2Cj?k.Zk }
6*{N{]`WZ) }"2
0: 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
,=R->~ J %)?$82=2 10.清空Cookie
+^{yJp.H# Cookie.Expires=[DateTime];
6ZR'1_i6i= Response.Cookies("UserName").Expires = 0
j ]F
Zy r[JgCj+$& 11.自定义异常处理
{{SeD:hx //自定义异常处理类
aB#qzrr['8 using System;
8lT.2H using System.Diagnostics;
WdnCRFO?l %7z namespace MyAppException
jun>(7 {
uJ {N? /// <summary>
9^c\$"2B /// 从系统异常类ApplicationException继承的应用程序异常处理类。
39BGwKXb /// 自动将异常内容记录到Windows NT/2000的应用程序日志
khyn4
/// </summary>
t%/Y^N; public class AppException:System.ApplicationException
G<Z|NT {
v](7c2; public AppException()
hF.9\X] {
Yhb=^)@)) if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
YJ_LD6PL9 }
Lg
sQz(- }pTy mAN public AppException(string message)
*U)!9DvA {
Wx;:_F7'\ LogEvent(message);
Yq $(Ex }
5NZob<< Wm7Dy7#l public AppException(string message,Exception innerException)
&w- QMjM> {
uF+if`? LogEvent(message);
)?:V5UO\ if (innerException != null)
7eqax33f {
(B}+uI{ LogEvent(innerException.Message);
r~si:?6: }
#-+!t<\ }
/q ;MihK l+*^P'0u //日志记录类
9axJ2J'g using System;
"nf.kj:> using System.Configuration;
+>@<'YI< using System.Diagnostics;
e #>wv]V using System.IO;
6NVf&;laQ using System.Text;
{*r*+}@ using System.Threading;
`Jq
?+W tq8B)<(] namespace MyEventLog
O\,n;oj {
[u[F6Wst /// <summary>
hCQzD2 /// 事件日志记录类,提供事件日志记录支持
KLGhsx35 /// <remarks>
~B'K_# /// 定义了4个日志记录方法 (error, warning, info, trace)
6HW<E~G'6 /// </remarks>
`i<;5s!rX /// </summary>
j{C+`~O public class ApplicationLog
?H#]+SpOcv {
4/e-E^ /// <summary>
HW;,XzP= /// 将错误信息记录到Win2000/NT事件日志中
82WXgB> /// <param name="message">需要记录的文本信息</param>
[k ZvBd /// </summary>
6'3@/. public static void WriteError(String message)
Qv,8tdx {
#(mm6dj WriteLog(TraceLevel.Error, message);
s/ibj@h }
;\DXRKR TyY[8J| /// <summary>
`7zz&f9dDX /// 将警告信息记录到Win2000/NT事件日志中
6] <~0{ /// <param name="message">需要记录的文本信息</param>
A% 9TS/-p /// </summary>
&B1d+.+ public static void WriteWarning(String message)
]rO`eN[~U {
WoHFt*e2 WriteLog(TraceLevel.Warning, message);
{0+gPTp }
,Drd s"H 0zCe|s.S& /// <summary>
"2o,XF /// 将提示信息记录到Win2000/NT事件日志中
"gADHt=MIR /// <param name="message">需要记录的文本信息</param>
qPK3"fzH /// </summary>
#/Y t4n public static void WriteInfo(String message)
AF g* {
w4H3($
K WriteLog(TraceLevel.Info, message);
_Pjo9z
9 }
(1T2?mO /// <summary>
qba<$ /// 将跟踪信息记录到Win2000/NT事件日志中
T]l_B2. /// <param name="message">需要记录的文本信息</param>
yd2v_ /// </summary>
3/RmJ`c{ public static void WriteTrace(String message)
;aExEgTq {
lJP6sk WriteLog(TraceLevel.Verbose, message);
aL$m }
h?jy'>T?b2 M:z)uLDw /// <summary>
aT$q1!U`j2 /// 格式化记录到事件日志的文本信息格式
@C{IgV /// <param name="ex">需要格式化的异常对象</param>
!2s<
v /// <param name="catchInfo">异常信息标题字符串.</param>
Nc:, [8{l /// <retvalue>
/-Y*V*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>
W2G`K+p /// </retvalue>
al$G OMi /// </summary>
.9_]8T public static String FormatException(Exception ex, String catchInfo)
<cW$
\P}hV {
Va/LMw StringBuilder strBuilder = new StringBuilder();
T>2) YOx if (catchInfo != String.Empty)
d?C8rkV' {
qRT1W re
3 strBuilder.Append(catchInfo).Append("\r\n");
`d2}>
}
)eop:!m strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
}\k"azQ` return strBuilder.ToString();
*Nloa/a&9 }
pRe, B'& UKMr,{iy /// <summary>
"z)dz,&T /// 实际事件日志写入方法
NTS
tk{s, /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
+h_'hz&HlS /// <param name="messageText">要记录的文本.</param>
Me;@/;c( /// </summary>
C2NJrg4( private static void WriteLog(TraceLevel level, String messageText)
4SIi<cS0 {
R}IMX9M= try
Wly-z$\ {
mO;X>~K EventLogEntryType LogEntryType;
;|Idg"2 switch (level)
/Aooh~ {
H
RJz case TraceLevel.Error:
lp3 A B LogEntryType = EventLogEntryType.Error;
7K>FCT break;
&;S.1tg case TraceLevel.Warning:
xZZW*d_b LogEntryType = EventLogEntryType.Warning;
Oaf!\z} break;
I9O!CQCTt case TraceLevel.Info:
L!s/0kBg LogEntryType = EventLogEntryType.Information;
,R]hNjs-{ break;
S G|``}OA case TraceLevel.Verbose:
Tu2BQ4\[ LogEntryType = EventLogEntryType.SuccessAudit;
Fn.wd`'0 break;
E,&BP$B default:
8mI eW LogEntryType = EventLogEntryType.SuccessAudit;
NPc]/n?vDj break;
L)H'g }
-L>xVF-|:1 "W$,dWF EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
fx(^}e //写入事件日志
=$;i eventLog.WriteEntry(messageText, LogEntryType);
NPy{ =#k4 y33+^ }
RO?5WJpPj catch {} //忽略任何异常
}UNRe]ft$ }
6KC.l}Y* } //class ApplicationLog
a<9gD,]P }
|Z'NMJU HTiqErD2_ 12.Panel 横向滚动,纵向自动扩展
|!:ImX@ <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
tn!z^W g BfYm 13.回车转换成Tab
ZLw7-H6Fh <script language="javascript" for="document" event="onkeydown">
f(~xdR))eh if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
u&Ts'j event.keyCode=9;
ZRN*. </script>
.|`JS?L[ vn<z\wVbf onkeydown="if(event.keyCode==13) event.keyCode=9"
g]?&qF} {E`[`Kf 14.DataGrid超级连接列
4UD<g+| DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
:#W40rUb xp-.,^q\w 15.DataGrid行随鼠标变色
p.^glz >B private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
3`[f<XaL {
mpfc2>6Il. if (e.Item.ItemType!=ListItemType.Header)
'7AlE!7% {
Q-o}Xnj*!L e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
spter35b[ e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
Q SPneYD }
A.tONPi }
j]th6 rUvjc4O} 16.模板列
`(s&H8x# <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
P @N7g`u3} <ITEMTEMPLATE>
>MD['=J[d <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
WBT/;),}: </ITEMTEMPLATE>
&1)4B </ASP:TEMPLATECOLUMN>
1Q1NircJ ,>% 2`Z) <ASP:TEMPLATECOLUMN headertext="选中">
1FCqkwq[ <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
mOji\qia <ITEMTEMPLATE>
6vp\~J <ASP:CHECKBOX id="chkExport" runat="server" />
'F>eieO </ITEMTEMPLATE>
"]h4L <EDITITEMTEMPLATE>
|>o]+ V <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
Tbv", b </EDITITEMTEMPLATE>
>PdYQDyVS </ASP:TEMPLATECOLUMN>
AuIb>@a iIWz\FM 后台代码
T(t@[U2^ protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
kSx^Uu* {
L1=+x^WQ //改变列的选定,实现全选或全不选。
T\7z87Q CheckBox chkExport ;
w@w(AFV9/ if( CheckAll.Checked)
i}teY{pyc {
|hBX" foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
KW.*LoO {
v5STe` chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
9}p>=' chkExport.Checked = true;
q
SR\=:$ }
-4ityS
@ }
^uB9EP*P else
?m.WqNBH7 {
S9/oBxGN foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
8xs}neDg* {
_GEt:=DAP# chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
I3 /^{-n chkExport.Checked = false;
?/ xk }
gzfs9e }
Yd]y`J?# }
NAd|n+[d A&EVzmj-+X 17.数字格式化
z}I =: $:IOoS|e 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
~ [L4,q <%#Container.DataItem("price","{0:¥#,##0.00}")%>
l&3f<e NIZN}DnP int i=123456;
%Jy0?W N string s=i.ToString("###,###.00");
h^_Sd"l3 ~2
L{m[s| 18.日期格式化
`4^-@} J2A+x\{< 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
k#mQLv 1>hY!nG h 显示为: 2004-8-11 19:44:28
y/U(v"'4U Hy4c{Ij 我只想要:2004-8-11 】
kA3nhBH <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
q@K8,=/.# !RX\">z 应该如何改?
05=
$Dnv /{Ff)<Q.Z 【格式化日期】
7&oT}Z 'Cw&9cL9w 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
b[5$$_[ R@*mMWW, 【日期的验证表达式】
Ky"]L~8$ * V;L|c A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
9 0PF)U ^((\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})))?$
_dQVundH mocR_3=Q? B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
CjtBQ5 ^\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]))$
#4hxbRN tA#7Xr+ 【大小写转换】
<}e2\x HttpUtility.HtmlEncode(string);
fTQ_miAlP HttpUtility.HtmlDecode(string)
IQn|0$':Z 8MUY 19.如何设定全局变量
+um
Ua L~x
PIu Global.asax中
qg521o$* $ =
uz Application_Start()事件中
K)NB{8 _ B[XVTok 添加Application[属性名] = xxx;
=W+ h.? /u
hA\m( 就是你的全局变量
uu08q<B5b) TL^af- 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
nR%ASUx:Y 06hzCWm# HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
zj~(CNE CM$q{;y 【ASPNETMENU】点击菜单项弹出新窗口
sK1YmB :~a oWCy%76@ 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
4sU*UePr <?xml version="1.0" encoding="GB2312"?>
j?!BHNs <MenuData ImagesBaseURL="images/">
~Sq!P <MenuGroup>
I~:v X^%9 <MenuItem Label="内参信息" URL="Infomation.aspx" >
w8MQA!=l <MenuGroup ID="BBC">
2|="!c8K <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
:exgdm;N <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
c?@WNv ......
Vz=ByyC 82w;}(! 最好将你的aspnetmenu升级到1.2版
lr>:S Xz/5Wis4 21.读取DataGrid控件TextBox值
z^@.b foreach(DataGrid dgi in yourDataGrid.Items)
$bf&ct*$h {
)C?bb$
G TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
$e(]L(o; tb.Text....
jg2UX }
cvoE4&m! T6T3:DG_B 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
px|y_.DB2x PKDzIA~T 〖思归〗
d4y?2p ?3 <asp:TemplateColumn HeaderText="数量">
5U%J,W <ItemTemplate>
b=V"$(Q <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
, 7` /D onkeyup="javascript:DoCal()"
!Q-h#']~L />
&ZkY9XO JCL+uEX4S <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
h6Femis </ItemTemplate>
!v^{n+ </asp:TemplateColumn>
U<T.o0s= )Dg;W6 <asp:TemplateColumn HeaderText="单价">
.Vohd@s9l <ItemTemplate>
1_AB;^ <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
k,)xv? onkeyup="javascript:DoCal()"
zWN/>~}U\ />
tyEa5sy4 (s:ihpI <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
cr}T ? $\K v|\<N!g </ItemTemplate>
(lNV\Za </asp:TemplateColumn>
B=EI&+F+ E5^P*6c( <asp:TemplateColumn HeaderText="金额">
O=,[u? <ItemTemplate>
_J|TCm <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
[#+yL </ItemTemplate>
QNH-b9u>8 </asp:TemplateColumn><script language="javascript">
nRP|Qt7> function DoCal()
& XS2q0-x {
}6Ut7J]a| var e = event.srcElement;
Z&f@)j var row = e.parentNode.parentNode;
O9+Dd%_KS# var txts = row.all.tags("INPUT");
h8nJt>h if (!txts.length || txts.length < 3)
*wH.]$ return;
A*1-2 /G{;?R var q = txts[txts.length-3].value;
'H19@b5rx var p = txts[txts.length-2].value;
K;:_UJ>t 2)iwAu
if (isNaN(q) || isNaN(p))
+ESEAi91 return;
iy<|<*s2D nC:>1kt q = parseInt(q);
aw%iO|M_ p = parseFloat(p);
UR3qzPm!0e qocN:Of1 txts[txts.length-1].value = (q * p).toFixed(2);
E{Kc$,y }
L|?$F*bs </script>
_H,xnh#nZ >MTrq%. Ofx] kp6{QKDj& 3"*tP+H 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。
fbTq?4&Q page_load
)S:,q3gxJ page.smartNavigation=true
eD(;Wn ;\N)RZ 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 ?
R m&^[mv private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
Z[ NO`!< {
;S&PLgZ for(int i=0;i<e.Item.Cells.Count-1;i++)
Qu
x1N if(e.Item.ItemType==ListItemType.EditType)
m1 tYDZ"i {
GiZv0>*x e.Item.Cells.Attributes.Add("Width", "80px")
p\'0m0*
}
6UAn#d9 }
6-fdfU pmWt7 } 26.对话框
+jEtu[ ; private static string ScriptBegin = "<script language=\"JavaScript\">";
1BjMVMH private static string ScriptEnd = "</script>";
tj'xjX VRb+-T7" public static void ConfirmMessageBox(string PageTarget,string Content)
J1s~w`, {
Jbv[Ql# string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
R&-Vm3mc3 &x": ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
?Z0NHy;5 {
R`"Nk Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
'bd|Oww1u ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
s|`Z V^R //Response.Write(strScript);
yd}1Mx }
=O1py_m W0I)< S 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
PM?F;mj bQvhBa? 1.1 取当前年月日时分秒
D<QE?:# currentTime=System.DateTime.Now;
<dD)>Y. r6b;v2!8 1.2 取当前年
cXd?48O int 年= DateTime.Now.Year;
ee}HQ.}Ja up@I,9C/ 1.3 取当前月
L0Ycf|[s, int 月= DateTime.Now.Month;
+W%3VV$ %tE#%;Z 1.4 取当前日
4:I'zR5 int 日= DateTime.Now.Day;
^pysoaZCT_ svaclkT= 1.5 取当前时
*y0=sG1+D int 时= DateTime.Now.Hour;
R1/h<I: $(r/N"6)O2 1.6 取当前分
V0/PjD,jP int 分= DateTime.Now.Minute;
pBxyq"z W5^<4Ya! 1.7 取当前秒
!U"?vS l int 秒= DateTime.Now.Second;
<k'%rz uxOeD%Z> 1.8 取当前毫秒
[0?W>A*h int 毫秒= DateTime.Now.Millisecond;
lVYrP|# tR Cz[M& 28.自定义分页代码:
TPF5 ? @}<b42 先定义变量 :
S]x\Asj;w public static int pageCount; //总页面数
T&q0TBT public static int curPageIndex=1; //当前页面
\3WQ<t)W Wb%t6N? 下一页:
V{{Xz: if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
Pm/Rc {
,+>JQ82 DataGrid1.CurrentPageIndex += 1;
PC<[$~ curPageIndex+=1;
s L=}d[ }
6Bf aB: 1PUeU+ bind(); // DataGrid1数据绑定函数
i",7<01 8W2oGL6 上一页:
/wX5>^ if(DataGrid1.CurrentPageIndex >0)
0,]m.)ws {
f.G"[p DataGrid1.CurrentPageIndex += 1;
Js'j}w curPageIndex-=1;
tJvs
?eZ) }
_'0C70 O>3f*Cc bind(); // DataGrid1数据绑定函数
pGdFeEkB/ "qdEu KI 直接页面跳转:
%F}i2!\<L int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
I/hq8v~S !zQbF&> if(a<DataGrid1.PageCount)
hd1aNaF- {
l3:2f-H this.DataGrid1.CurrentPageIndex=a;
skP'- ^F~ }
"j/jhe6 <<Q}|$Wu bind();
KQTv5|$? $1uT`>% 29.DataGrid使用:
HZ[.,DuW K"/3/`T 添加删除确认:
)>(ZX9diV private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
=k]2Ad {
XI\P#" foreach(DataGridItem di in this.DataGrid1.Items)
>e^^YR^ {
DS|q(O=7~t if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
OsV'&@+G> {
Y[rRz6.*( ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
Q;?rqi
, }
_KJ!C! }
n+57# pS7 }
NHQi_U ez14f$cJ+ 样式交替:
LaX<2]Tx: ListItemType itemType = e.Item.ItemType;
m0p%R>:5 Fv-~v& if (itemType == ListItemType.Item )
\A 5Na-/9 {
/liZ|K3A e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
ugzrG0=lx e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
uqv S }
ctMH5"F&1 else if( itemType == ListItemType.AlternatingItem)
WXQ+`OH7 {
%+iAL<S e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
\YPvpUg e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
_P9*78 }
<!q_C5>XJ oV'G67 W 添加一个编号列:
I+/fX0-Lib DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
JqV}>"WMV DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
fb8)jd'~}O !;Vqs/E for(int i=0;i<dt.Rows.Count;i++)
X?.tj
Z, {
w/e?K4 dt.Rows["number"]=(i+1).ToString();
1G8,Eah }
l?B=5*0 joBS{] DataGrid1.DataSource=dt;
snYyxi DataGrid1.DataBind();
[nf5< L:\>)6]Ls DataGrid1中添加一个CheckBox,页面中添加一个全选框
WOQ>]Z private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
E?FUr?-[ {
*)L~1;7j> foreach(DataGridItem thisitem in DataGrid1.Items)
gu"@*,hL {
yRR[M@Y ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
i`w)dS }
_%u t# }
gh `]OxA \ #N))gAQ 将当前页面中DataGrid1显示的数据全部删除
V8rS~'{\ foreach(DataGridItem thisitem in DataGrid1.Items)
"(mF5BE-E {
p,BoiYdi if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
tYp 185 {
u\(>a string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
]P e8G(E! Del (strloginid); //删除函数
)jjL' }
*|ef #-|D }
1&RB=7.h Vqr]Ui 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)
ar_@"+tZ jLn|zK 在Application_Start中添加以下代码:
DWS#q|j`" Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
YjiMUi\V AppSettings["ConnStr"].ToString();
_
glB<r$ =>XjChM 31. 变量.ToString()
yO`
|X >T)tAZ?WK 字符型转换 转为字符串
s Fx0 12345.ToString("n"); //生成 12,345.00
9)>+r6t 12345.ToString("C"); //生成 ¥12,345.00
ECk3Da 12345.ToString("e"); //生成 1.234500e+004
]xGpN ]u 12345.ToString("f4"); //生成 12345.0000
niyI$OC 12345.ToString("x"); //生成 3039 (16进制)
Za]~[F 12345.ToString("p"); //生成 1,234,500.00%
vX_;Y#uD ?R_fg 32、变量.Substring(参数1,参数2);
A
b+qLh&? S`Z[MNY 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
NA$%Up ipE|)Ns 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)
[?bq4u` <SCRIPT language="javascript">
U6.hH%\}@ <!--
v'm-A d+4t function gook(pws)
yxi&80$ {
@Z5,j) frm.submit();
xXfv({ }
k2(k0HFR //-->
h.wffk, 'e_e*.z3 </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
g_JQW(_ <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
tt|P-p- <tr>
-qBdcbi|x) <td>
-s0\ 4 <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
> Edsanx <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
86>@.:d <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
sN K^.0 J50n
E~ <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
;ik,6_/Y <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
4I9Yr 2Bi?^kQ# </td>
@?RaU4e }$[@* </tr>
T\#Gc4 7yjun|Lt}X </form>
I>q!co9n H^dw=kS 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。
J #5V>7G hiv {A9a? 下面是获取用户输入的登陆信息的代码:
_2{2Xb string name;
\Rs9B . name=Request.QueryString["EmailName"];
SYh>FF" @urZ try
!?>I {
L={\U3 __k int a=name.IndexOf("@",0,name.Length);
wR,}#m, f_user.Value=name.Substring(0,a);
' 6)Yf}I f_domain.Value=name.Substring(a+1,name.Length-(a+1));
O{\%{XrW f_pass.Value=Request.QueryString["Psw"];
W>qu~ak?x }
$@l=FV_; yo8mfH_, catch
s>W :vV@ {
* U}-Y* Script.Alert("错误的邮箱!");
eSHsE3}h
Server.Transfer("index.aspx");
{|<yZ,,p }