1. 打开新的窗口并传送参数:
2.b,8wT/ LbRQjwc]W 传送参数:
HG?+b response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
Fs%`W4/ .SER,],P 接收参数:
C c:<F_UI string a = Request.QueryString("id");
m;MJ{"@A' string b = Request.QueryString("id1");
Z${eDl6i gBcs 2.为按钮添加对话框
; teM^zyI Button1.Attributes.Add("onclick","return confirm(’确认?’)");
]S[?tn button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
0F/[GZ<k 3]mprX' 3.删除表格选定记录
T]-MrnO int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
~"SQwE| string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
09jE7g @X} LR>s2zu- 4.删除表格记录警告
U$& '> %# private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
vIOGDI> {
2%`=
LGQC switch(e.Item.ItemType)
G:tY1'5 {
P~=yTW case ListItemType.Item :
dgoAaS2M case ListItemType.AlternatingItem :
OoH-E.lp case ListItemType.EditItem:
sVw:d_ E TableCell myTableCell;
.O5V;&, myTableCell = e.Item.Cells[14];
m:[I$b6AY LinkButton myDeleteButton ;
p^<(.+P4 myDeleteButton = (LinkButton)myTableCell.Controls[0];
H)7v$A,5% myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
jga \Ry=nw break;
9,`i[Dzp default:
rVoV@,P break;
P@vUQ }
L-D4>+ /3~L#jS }
2[qfF6FHA WK(X/!1/k 5.点击表格行链接另一页
&s vg<UZ private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
n{sk {
"YgpgW //点击表格打开
B#jnM~fJz if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
nv@z;#& e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
k)S1Z s~G }
0
h!Du|? #5)/B 双击表格连接到另一页
v>B412l I@/
G#3Zr 在itemDataBind事件中
A`f"<W-m if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
8TeOh1\ {
,mp<<%{u string OrderItemID =e.item.cells[1].Text;
/[FDiJH2 ...
QDQ"Sc06 e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
*kFd#b+xB }
aPEI_P+Ls J~]@#=,v 双击表格打开新一页
?1JY6v]h4 if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
@GQfBV|3 {
I\k<PglRA string OrderItemID =e.item.cells[1].Text;
jL"V0M]c ...
'!7>*< e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
`M6"=)twu }
>aO.a[AM :QGo
-,6- ★特别注意:【?id=】 处不能为 【?id =】
tSJ# 6.表格超连接列传递参数
W?.469yy <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
h'
!C <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
?0qD(cfx< pS ](Emn`. 7.表格点击改变颜色
{jB>]7 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
e,e(t7c?d {
.c+U=bV- e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
w>^(w<~Y this.style.color=’buttontext’;this.style.cursor=’default’;");
B\c_GX Uw }
3u/JcU-< [StnKQ?"wz 写在DataGrid的_ItemDataBound里
HdqB B if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
3P2{M}WIl {
P|$n e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
?IHt T3'Rt this.style.color=’buttontext’;this.style.cursor=’default’;");
uv/\1N;V3 e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
jj2iF/ }
6-_g1vq zY_J7,0g *O~y6|U? 8.关于日期格式
JfN
'11,$ y%i9 b&gDd 日期格式设定
d/Q#Z DataFormatString="{0:yyyy-MM-dd}"
F~
5,-atDM 3LLG#l)8 我觉得应该在itembound事件中
3&^hf^yg e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
7 mCf*| 5:IDl1f5 9.获取错误信息并到指定页面
I 0~'z f .h=n [`RB 不要使用Response.Redirect,而应该使用Server.Transfer
@c]KHWI {S{ %KkAV e.g
.T9$O]:o // in global.asax
m1pA]}Y/5o protected void Application_Error(Object sender, EventArgs e) {
@-dGZ5 if (Server.GetLastError() is HttpUnhandledException)
{wz)^A
sy Server.Transfer("MyErrorPage.aspx");
,^?g\&f( qhxMO[f //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
@^UgdD,BS, }
mcd{:/^? }S uj=oFp Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
8j#S+=l> 1DB{"8ov 10.清空Cookie
M=Ze)X\E*' Cookie.Expires=[DateTime];
\s*UUODWK Response.Cookies("UserName").Expires = 0
B.r^'>jQ spfW)v/T! 11.自定义异常处理
D wJ^ W&* //自定义异常处理类
dXh[Ea^ using System;
.8|wc using System.Diagnostics;
6
H P66B ),p0V
namespace MyAppException
M/p9 I
gp {
LRu,_2" /// <summary>
r89AX{: /// 从系统异常类ApplicationException继承的应用程序异常处理类。
/&Oo)OB; /// 自动将异常内容记录到Windows NT/2000的应用程序日志
0Gs\x /// </summary>
F}u'A,Hc public class AppException:System.ApplicationException
_gqqPny4$ {
c1k[)O~ public AppException()
nKm#
kb {
a*5KUj6/TL if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
}9"''Z }
5VTVx1P[8 a
-Pz<* public AppException(string message)
%@vF% {
Pb'(Y LogEvent(message);
dBd7#V:}yV }
)ovAG O .b]sQ' public AppException(string message,Exception innerException)
l'(FM^8jv {
[y9a.*]u/@ LogEvent(message);
.gg0rTf=- if (innerException != null)
(BLxK)0<" {
vd lss| LogEvent(innerException.Message);
DSwb8q }
X=whZ\EZ }
J]TqH`MA _l7_!Il_ //日志记录类
e|{R2z"^ using System;
X+]>pA using System.Configuration;
lZ-U/$od using System.Diagnostics;
~-zIB=TyK using System.IO;
,N(Yjq"R using System.Text;
53:~a using System.Threading;
<8b1OdA (U& namespace MyEventLog
Np+PUu> {
5bt>MoKxv /// <summary>
i6KfH\{N /// 事件日志记录类,提供事件日志记录支持
Z|E9}Il] /// <remarks>
N 5*Qnb8 /// 定义了4个日志记录方法 (error, warning, info, trace)
\+V"JIStUj /// </remarks>
nv_v FK /// </summary>
!4a fU: public class ApplicationLog
v]( Y n)# {
eI$V2 /// <summary>
?{ExBZNa /// 将错误信息记录到Win2000/NT事件日志中
CO`)XB6W /// <param name="message">需要记录的文本信息</param>
)7*'r@ /// </summary>
wU+r]SK@ public static void WriteError(String message)
7G_<+rn {
\~*<[.8~ WriteLog(TraceLevel.Error, message);
"M5 }
C Imp,k0 8Ij<t{Lps /// <summary>
QZ&(e2z /// 将警告信息记录到Win2000/NT事件日志中
^Ye(b7Gd /// <param name="message">需要记录的文本信息</param>
Br9j)1; /// </summary>
<Ja&z M public static void WriteWarning(String message)
1+Gq<]@G {
?\8aT"o WriteLog(TraceLevel.Warning, message);
kaCN^yQ }
Ge`7`D>L wL8ji>" /// <summary>
$L= Dky7 /// 将提示信息记录到Win2000/NT事件日志中
/7D5I\ /// <param name="message">需要记录的文本信息</param>
.JLJ(WM /// </summary>
teS>t!d public static void WriteInfo(String message)
"/6#Z>y {
ym{@w3"S WriteLog(TraceLevel.Info, message);
5Qq/nUR }
<u\Hy0g /// <summary>
b5|*p(7[ /// 将跟踪信息记录到Win2000/NT事件日志中
#1haq[Uv7 /// <param name="message">需要记录的文本信息</param>
/iO"4%v /// </summary>
DKt98; public static void WriteTrace(String message)
C<J*C0vQO {
8S#$'2sT WriteLog(TraceLevel.Verbose, message);
yDqwz[v b }
iKaX8c,zI 0E26J@jcZ7 /// <summary>
="$w8iRU /// 格式化记录到事件日志的文本信息格式
A.r7 ks /// <param name="ex">需要格式化的异常对象</param>
)<V!lsUx'- /// <param name="catchInfo">异常信息标题字符串.</param>
&Gh,ROo4 /// <retvalue>
mj'~-$5T /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
h7+"*fN /// </retvalue>
Vx<{cHQQ /// </summary>
;9j ]P56 public static String FormatException(Exception ex, String catchInfo)
(
3B1X {
Em&3g StringBuilder strBuilder = new StringBuilder();
5Hu[* if (catchInfo != String.Empty)
Zeg'\&w0s {
w3(G!: strBuilder.Append(catchInfo).Append("\r\n");
[nxYfER7 }
~JT2el2W7p strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
8~O#@hB~3 return strBuilder.ToString();
1TTS@\ }
e^eJ!~0 xH2'PEjFM /// <summary>
r7W.}n* /// 实际事件日志写入方法
l!:bNMd /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
#k9&OS? /// <param name="messageText">要记录的文本.</param>
tM"vIz 05 /// </summary>
dQIF'==6 private static void WriteLog(TraceLevel level, String messageText)
=7+%31 {
Oz%6y
ri try
;t +p2i {
6ZIPe~` EventLogEntryType LogEntryType;
01@WU1IN switch (level)
p?$N[-W 6- {
:0y-n.-{ case TraceLevel.Error:
>!1]G"U LogEntryType = EventLogEntryType.Error;
=Lkn
break;
MPUyu(-%{ case TraceLevel.Warning:
N-2#-poDe LogEntryType = EventLogEntryType.Warning;
{oY"CZ2 break;
>Y4^<!\v case TraceLevel.Info:
4C?{p%3c LogEntryType = EventLogEntryType.Information;
PJZ;wqTD_ break;
!f(A9V case TraceLevel.Verbose:
}T.>p#z LogEntryType = EventLogEntryType.SuccessAudit;
$Zyuhji^ break;
A]m*~Vj] default:
P\Qvj7_ LogEntryType = EventLogEntryType.SuccessAudit;
sd\}M{U break;
=iW hK~S }
c<_1o!68 h
i!K-_Uy EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
|I1,9ex //写入事件日志
!X7z y9 eventLog.WriteEntry(messageText, LogEntryType);
O83J[YuzjN O;4S<N }
eWqS]cM# catch {} //忽略任何异常
Pa{DB?P }
LIG@` } //class ApplicationLog
/ZiMD;4@y }
m)66g]F+ {Yxvb** 12.Panel 横向滚动,纵向自动扩展
8WDL.IO <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
e*'bY;8lo }BS
EK<W 13.回车转换成Tab
H%m^8yW1 <script language="javascript" for="document" event="onkeydown">
X$==J St if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
a"P &
9c event.keyCode=9;
e/Z{{FP%6 </script>
6?}|@y^fb WrwbLl E onkeydown="if(event.keyCode==13) event.keyCode=9"
b(N+_=
n `Zuo`GP*1 14.DataGrid超级连接列
Bs0~P 4^ DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
(zsmJe f
] *w1 15.DataGrid行随鼠标变色
@{qcu\sZ private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
e6'0g=Y# {
W=
NX$=il if (e.Item.ItemType!=ListItemType.Header)
=?Ry,^=b {
=55)|$hgD e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
I*U7YqDC9 e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
xb[yy}>"L }
?W ^`Fa)]o }
MMjewGxe 0UpRSh)# 16.模板列
;PMPXN'z6 <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
%62|dhl6 <ITEMTEMPLATE>
"n3n-Y#' <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
RQ|K?^k
v </ITEMTEMPLATE>
Vfd_nD^8oZ </ASP:TEMPLATECOLUMN>
1y[~xxgE R|Bi%q|4P <ASP:TEMPLATECOLUMN headertext="选中">
N@0/=B[n <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
c%G~HOE=B <ITEMTEMPLATE>
uq6>K/~D <ASP:CHECKBOX id="chkExport" runat="server" />
'`}D+IQ(j </ITEMTEMPLATE>
sifjmNP <EDITITEMTEMPLATE>
M GC=L . <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
9Q(Lnu </EDITITEMTEMPLATE>
%}b </ASP:TEMPLATECOLUMN>
vB7]L9=@" w`boQ_Ir 后台代码
Y_$!XIJ4 protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
lz0dt<8eP {
) 5`^@zx //改变列的选定,实现全选或全不选。
_Iy)p{y CheckBox chkExport ;
oSYJXs if( CheckAll.Checked)
eYRd#w {
Zu#^a|PE* foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
vKoQ!7g {
?a+J4Zr3 chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
0RdW.rZJ chkExport.Checked = true;
{nZP4jze }
(Z@-e^R }
S5m.oHJI* else
%[*_-% {
e#6H[t
foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
NB3+kf , {
[Ketg chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
C.=%8|Zy chkExport.Checked = false;
}rVLWt }
cPL6(&7 }
l}S96B }
s Fk{Tv@Yz "OP$n-*@% 17.数字格式化
uG.` @B+8' b$9 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
y\6C9%. <%#Container.DataItem("price","{0:¥#,##0.00}")%>
G?s;L NR 2CtCG8o int i=123456;
%> YRNW@% string s=i.ToString("###,###.00");
&_QD1 TT sAX4giaLD 18.日期格式化
]*DIn1C^ |.~2C14[ 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
2sBYy 8.r B_c-@kl 显示为: 2004-8-11 19:44:28
AA|G&&1y
9Z2aFW9 我只想要:2004-8-11 】
=;8q` <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
4tiCxf) xjDaA U, 应该如何改?
q/7T-"q/G L{f0r!d| 【格式化日期】
Ov:U3P?% 7'{%djL 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
]R"n+LnI:= -oju-gf K 【日期的验证表达式】
#B$_ily) p)7U%NMc(* A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
Fvv/#V^R ^((\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})))?$
O St~P^1 oXwcil B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
jfR!M07| ^\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]))$
(=53WbOh/t cpq0'x\ 【大小写转换】
O,&p"K&Z HttpUtility.HtmlEncode(string);
%[?{H} y HttpUtility.HtmlDecode(string)
Q`h@-6N 5zJ#d}%}S" 19.如何设定全局变量
gepYV} Xs4G#QsAJ Global.asax中
2c9]Ja3:6 q={3fm Application_Start()事件中
x5yZ+`Gc yle~hL 添加Application[属性名] = xxx;
P^/e!%UgC w\a9A#v, 就是你的全局变量
@:u2{>Yl t-hN4WKH_A 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
!\Q/~p'jS Y,%G5X@S< HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
#0M,g XR)I,@i`' 【ASPNETMENU】点击菜单项弹出新窗口
&2Cu"O'.i JR/^Go$^ 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
SI l<\ <?xml version="1.0" encoding="GB2312"?>
_@]@&^K$E <MenuData ImagesBaseURL="images/">
K@=_&A! <MenuGroup>
-QydUr/(o <MenuItem Label="内参信息" URL="Infomation.aspx" >
5~omZ,qe <MenuGroup ID="BBC">
J$Ba*`~!! <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
4[LzjC <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
L_YY, ......
A.S:eQvS% q1M16qv5 最好将你的aspnetmenu升级到1.2版
CY8=prC HuL9' M 21.读取DataGrid控件TextBox值
L5>.ku=T foreach(DataGrid dgi in yourDataGrid.Items)
9y"\]G77E {
,OO0*% TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
kasx4m]^ tb.Text....
_i&awm/U }
OY#=s!]
M cM+s)4TPL 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?
d,).O T EqCoeR 〖思归〗
aSNTm8SYX <asp:TemplateColumn HeaderText="数量">
uw&'=G6v <ItemTemplate>
\Mod4tQ <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
tB{O6=q onkeyup="javascript:DoCal()"
LMte,zs> />
-RnQ8Iuo ~C],?X(zk <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
7b[vZNi_ </ItemTemplate>
:~]ha </asp:TemplateColumn>
?)#}Nj<R faaFmEC <asp:TemplateColumn HeaderText="单价">
>sE{c>R% <ItemTemplate>
)0Lv-Gs <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
oBTRO0.s+ onkeyup="javascript:DoCal()"
ul3._Q />
gnSb)!i>z {p(.ckze+ <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
\lpR+zaF N)Z,/w9 </ItemTemplate>
k@ZmI^ </asp:TemplateColumn>
cw{[% 7 6~0.YZ9 <asp:TemplateColumn HeaderText="金额">
/\M3O <ItemTemplate>
k
GzosUt <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
:Keek-E`e= </ItemTemplate>
!pLQRnI}6 </asp:TemplateColumn><script language="javascript">
Li_ a|dI function DoCal()
x5}Ru0Z {
g"sW_y_O var e = event.srcElement;
6muZE1sn var row = e.parentNode.parentNode;
,.<l^sj5 var txts = row.all.tags("INPUT");
;M"JN:J8 if (!txts.length || txts.length < 3)
8wqHr@}p return;
sP5\R# QGnBNsA h var q = txts[txts.length-3].value;
q.>{d%? var p = txts[txts.length-2].value;
pTlNJ!U> 9n"D/NZB if (isNaN(q) || isNaN(p))
thjCfP return;
*L.+w-g&& <M|kOi q = parseInt(q);
ca1A9fvo p = parseFloat(p);
@t6B\ ?4'T RE(R5n28, txts[txts.length-1].value = (q * p).toFixed(2);
u%vq<|~- }
LCRZ<?O[| </script>
{?' DZR s e " f/ R1X{=ct F+!K9( `| ,9W|$2=F 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
+," /z\QO page_load
n`krK"Ii page.smartNavigation=true
d&QB?yLd B6iH[dTy_ 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
@m[r0i0J" private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
195m0'zda {
N%\!eHxy for(int i=0;i<e.Item.Cells.Count-1;i++)
2\M^_x$N if(e.Item.ItemType==ListItemType.EditType)
{WJ+6!v {
;|f|d?Q\ e.Item.Cells.Attributes.Add("Width", "80px")
^F ` }
x2\,n }
~I%m[fQ S W"_")V=QBz 26.对话框
V3NQij( private static string ScriptBegin = "<script language=\"JavaScript\">";
#,1Kum
bG3 private static string ScriptEnd = "</script>";
$ Aw"?&d" 2WRa@;Tj public static void ConfirmMessageBox(string PageTarget,string Content)
r_f?H@ v {
3U0>Y%m| , string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
3%G>TB 0m^(|=N- ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
) )q4Rh 8(euWS Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
1>1&NQ#} ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
Ap{p_~~iJ //Response.Write(strScript);
a'zf8id }
=Vv"\p8 Quy&CV{@ 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
|Fk>NX w]hs1vch 1.1 取当前年月日时分秒
Ccld;c&+ currentTime=System.DateTime.Now;
ndn)}Z!0h _h2axXFhT 1.2 取当前年
8[Ssrk int 年= DateTime.Now.Year;
B\,pbOE?# 9@LL_r`?< 1.3 取当前月
zU;%s<(p int 月= DateTime.Now.Month;
gwj+~vSfi >TT4;p h 1.4 取当前日
xt7ZrT int 日= DateTime.Now.Day;
/G`'9cD |UN0jR 1.5 取当前时
XrY\ot`,D int 时= DateTime.Now.Hour;
0>?%{Xy d|!FI/ 1.6 取当前分
2 HNKq< int 分= DateTime.Now.Minute;
d7.}=E.L ^u@"L 1.7 取当前秒
{2EIvKu3: int 秒= DateTime.Now.Second;
)aov]Ns FA}dKE=c
Q 1.8 取当前毫秒
;by`[) int 毫秒= DateTime.Now.Millisecond;
V7Z+@e-5
N^\<y7x 28.自定义分页代码:
,Q8[Ur?G |'B-^? ; 先定义变量 :
hSQuML public static int pageCount; //总页面数
#)&kF+ public static int curPageIndex=1; //当前页面
x{_:B
DY Ib(q9!L 下一页:
+>b~nK>M if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
DlHt#Ob7 {
[ZC{eg+D DataGrid1.CurrentPageIndex += 1;
i^9 ,. $<1 curPageIndex+=1;
=]k0*\PS }
),ur!v LO8`qq*rq bind(); // DataGrid1数据绑定函数
m5c?A+@fZ %~eIx=s 上一页:
TUw+A6u:p if(DataGrid1.CurrentPageIndex >0)
{O ]^8#v^ {
AI{Tw>hZ DataGrid1.CurrentPageIndex += 1;
;m<22@,E& curPageIndex-=1;
d<{>& }
{t<E*5N]a ~:`5Y"Av: bind(); // DataGrid1数据绑定函数
EDQKb TaPt v?Z30?_&h 直接页面跳转:
F xek# int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
|$*1!pL-QP d??;r: if(a<DataGrid1.PageCount)
|\/`YRg> {
F|+Qi BO this.DataGrid1.CurrentPageIndex=a;
=lB+GS% }
'3BBTr%aZ 7Gwn ,&) bind();
US5 ]@! "DN0|%`M/ 29.DataGrid使用:
SlU?,)J} d 8YP<"V& 添加删除确认:
MI^@p`s private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
tB S+?N {
Blw AD foreach(DataGridItem di in this.DataGrid1.Items)
?4k/V6n@y {
tu5g> qb if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
" pg5w {
~e|RVY, ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
}W2FF }
;Gc,-BDFw }
Db:^Omwo }
kq| r6uE S2y_5XJ<D 样式交替:
tx` Z?K[ ListItemType itemType = e.Item.ItemType;
w)C/EHF @c;XwU]2t if (itemType == ListItemType.Item )
R[#Np`z {
{5 V@O_*{ e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
|7Dc7p"D e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
QZwUv<* }
rra|}l4Y else if( itemType == ListItemType.AlternatingItem)
EM2=g9y {
#VM+.75o1 e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
qQ&=Z`p! e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
6d7E@}< }
58[=.rzD 4d x4hBd 添加一个编号列:
M Ewa^ DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
WK2YHJ*$ DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
>W?i+,g g=#Cc(
q for(int i=0;i<dt.Rows.Count;i++)
4{PN9i
E {
O)N$nBnp dt.Rows["number"]=(i+1).ToString();
,xSNTOJ }
6Qc
*:(GE $jkzm8{W DataGrid1.DataSource=dt;
:@rq+wvP DataGrid1.DataBind();
1tZ7%0R\g] d/"%fpp^0G DataGrid1中添加一个CheckBox,页面中添加一个全选框
XE#a# private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
plNoI1st {
g5&ZXA foreach(DataGridItem thisitem in DataGrid1.Items)
p>ba6BDJT {
4h*c{do ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
%LM2CgH
V }
|*fi!nvk@ }
H*.v*ro9_ K#%@4]jO3 将当前页面中DataGrid1显示的数据全部删除
C.|.0^5 foreach(DataGridItem thisitem in DataGrid1.Items)
q1^bH6*fl {
,kQCCn] if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
2y"L&3W {
m~I@q
[ string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
q!10G Del (strloginid); //删除函数
/wi*OZ7R }
C1`fJhy }
&gLXS1O 9kzJ5} 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
V3S"LJ uQhI) 在Application_Start中添加以下代码:
`uwSxt Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
=L\&}kzB AppSettings["ConnStr"].ToString();
Kj7
?_o{ ul-O3]\'@ 31. 变量.ToString()
/$\N_`bM P7 h^!a/ 字符型转换 转为字符串
v) j3YhY 12345.ToString("n"); //生成 12,345.00
H'"=C&D~ 12345.ToString("C"); //生成 ¥12,345.00
`_iK`^(- 12345.ToString("e"); //生成 1.234500e+004
" k0gZb 12345.ToString("f4"); //生成 12345.0000
Y=?Tm,z4 12345.ToString("x"); //生成 3039 (16进制)
Cl8S_Bz 12345.ToString("p"); //生成 1,234,500.00%
o$p]
p9 og?L 9 32、变量.Substring(参数1,参数2);
xeB-fy)5+ []-<-TqJ 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);
5_\1f|, 1rIL[(r4 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)
GU0[K#% <SCRIPT language="javascript">
w-"tA`F4 <!--
F05]6NVv function gook(pws)
6Z@?W {
eemC;JV % frm.submit();
mIe 5{.m# }
dDbH+kqO //-->
**CGkL < ZG!w^ </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
{^.q6,l <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
r,<p#4(>_ <tr>
W5uC5C*,l <td>
+<T361eyY <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
<CcSChCg <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
hRQw] <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
$ghlrV;:ct b:PzqMh{G <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
Bun^EJ) <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
e>UU/Ks ~}_S]^br </td>
Sa-" G` ?>1wZ </tr>
i'B$Xr Ou_2UT </form>
Obx!>mI^6 @rv)J[7Y& 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。
q%/\ 8]i7wq#= 下面是获取用户输入的登陆信息的代码:
v*kX?J#]5 string name;
nKmf# name=Request.QueryString["EmailName"];
L=@8Zi!2< )+Yu7=S try
|&MOus#v {
z.!u<hy( int a=name.IndexOf("@",0,name.Length);
98maQQWD f_user.Value=name.Substring(0,a);
Jz]OWb * f_domain.Value=name.Substring(a+1,name.Length-(a+1));
cK,&huk f_pass.Value=Request.QueryString["Psw"];
t>2EZ{N+y }
mT>RQ. ;v!Ef"E|cV catch
gDjAnz# {
$Ji;zR4, Script.Alert("错误的邮箱!");
,*sKr)9) Server.Transfer("index.aspx");
v\g1w&PN }