1. 打开新的窗口并传送参数:
bM }zGFt ` +)Bl%* 传送参数:
m8eoD{ response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
EpTc{ 9!0-~,o 接收参数:
q"WfKz!U string a = Request.QueryString("id");
fhha-J string b = Request.QueryString("id1");
_,? xc" W"\+jHF" 2.为按钮添加对话框
o)Px d Button1.Attributes.Add("onclick","return confirm(’确认?’)");
ys:F button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
I|2dV9y >wR)p\UEb 3.删除表格选定记录
fp`m>}
- int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
Z`Jt6QgW string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
p9!jM\( dp2FC 4.删除表格记录警告
L-m'
# private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
2Ky|+s[`[ {
bIzBY+P switch(e.Item.ItemType)
P057]cAat< {
FTzc,6 case ListItemType.Item :
sp_19u case ListItemType.AlternatingItem :
yNG|YB; case ListItemType.EditItem:
0IHAoV60 TableCell myTableCell;
\Hq=_}]F myTableCell = e.Item.Cells[14];
Fr<tk^~/ LinkButton myDeleteButton ;
.3wx}!:*| myDeleteButton = (LinkButton)myTableCell.Controls[0];
!<F5W<V myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
=AF;3 break;
07\]8^/G default:
q4vHsy36 break;
D+w? }
J/rF4=j%xy X@/wsW(kM\ }
A6xN6{R! n"vO?8Sx 5.点击表格行链接另一页
q6o}2<T@ private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
zs'Jgm.v {
j*~z.Q | //点击表格打开
f%P#. if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
c'Q.2^w^ e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
K]^Jl0 }
%wGQu;re -AQ
7Bd 双击表格连接到另一页
=`!#V/= n8q%>.i7 在itemDataBind事件中
bkm:#K if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
,0i72J {
COxJ,v( string OrderItemID =e.item.cells[1].Text;
Qe]& ...
:Z6l)R+V e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
m$g{& }
Re1}aLd )X6I#q8 双击表格打开新一页
Lf;Uv[^c if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
mE9ytFH\k {
1NAtg*` string OrderItemID =e.item.cells[1].Text;
yQFZRDV~ ...
l5U ^lc e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
Zj)A%WTD, }
x139Ckn =[)2DJC ★特别注意:【?id=】 处不能为 【?id =】
JNI&]3[C>? 6.表格超连接列传递参数
~-A"M_n ? <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
Nu><r <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
%'9&JsO C1-Jj_XQ. 7.表格点击改变颜色
jVSU]LU E if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
4@@gC&:Y {
CSr2\ogT e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
.zJZ*\2ob this.style.color=’buttontext’;this.style.cursor=’default’;");
2'?C }
qITd.<
k $-n_$jLY 写在DataGrid的_ItemDataBound里
%:Zp7O2UB' if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
Rts}y:44 {
jG,^~5x e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
92^Dn`g this.style.color=’buttontext’;this.style.cursor=’default’;");
okBaQH2lUl e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
"I3&a1* }
mXUe/*r0T (=tu~ ^ 9}11>X 8.关于日期格式
^;cJjl'= U> {CG+X 日期格式设定
bE" J&;| DataFormatString="{0:yyyy-MM-dd}"
?xo<Fv )GJlQ1x 我觉得应该在itembound事件中
t=dZM}wj_\ e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
n:%A4* wKy4Ic+RV 9.获取错误信息并到指定页面
2*0n#"
L Q0TKM> 不要使用Response.Redirect,而应该使用Server.Transfer
t\lx*_lr C,5Erb/ e.g
&-ZRS/_d> // in global.asax
1i$OcN?x% protected void Application_Error(Object sender, EventArgs e) {
`,6^eLU if (Server.GetLastError() is HttpUnhandledException)
g)iw.M2 Server.Transfer("MyErrorPage.aspx");
P)hawH= \V9);KAOj //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
58/\ }
Ky'\t7p u 7`K)7 Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
+Z%8X!Q f2{qj5 K 10.清空Cookie
SrXuiiK Cookie.Expires=[DateTime];
^r~R]stE^ Response.Cookies("UserName").Expires = 0
K?mly$ "4i_} 11.自定义异常处理
K.\- //自定义异常处理类
Re'Ek using System;
p2o66t using System.Diagnostics;
?a-}1A{
|-VbJd namespace MyAppException
I,!>ZG@6 {
0d=<^wLi^ /// <summary>
~uu~NTz /// 从系统异常类ApplicationException继承的应用程序异常处理类。
.s<tQU /// 自动将异常内容记录到Windows NT/2000的应用程序日志
7)au#K6 /// </summary>
!<MW*7P= public class AppException:System.ApplicationException
.;~K*GC {
{m<!-B95 public AppException()
8^dsx1U# {
=u]FKY if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
V3}$vKQ }
+v'n[xa1v sR*JU% public AppException(string message)
M;qV%
k {
{v}jV{'^um LogEvent(message);
?GKm_b]JC }
d@t3C8 _d/ZaCx'i public AppException(string message,Exception innerException)
JSm3ZP|GqJ {
mPo] .z LogEvent(message);
^7~w yAr if (innerException != null)
hKW!kA=gZ {
dbLxm!;( LogEvent(innerException.Message);
Q CB~x2C }
3$ 1 z }
Dbo.N` XD\Z$\UJE //日志记录类
xF3H\`{4x using System;
yLlAK,5P0o using System.Configuration;
C\dlQQ using System.Diagnostics;
_9Ig`?<>I using System.IO;
}?Y+GT"E using System.Text;
gU}?Yy using System.Threading;
8Q1){M9'
oB$D& namespace MyEventLog
^ffh {
cZ7b$MZ%9 /// <summary>
2aN /// 事件日志记录类,提供事件日志记录支持
JPk3T.qp /// <remarks>
G?/1
F1 /// 定义了4个日志记录方法 (error, warning, info, trace)
jL)aU> kN /// </remarks>
X3Vpxtb /// </summary>
U<NpDjc" public class ApplicationLog
6P;1I+5m{q {
%;PPu$8K9 /// <summary>
!+H=e>Y6 /// 将错误信息记录到Win2000/NT事件日志中
"FaG5X( /// <param name="message">需要记录的文本信息</param>
)[)-.{q /// </summary>
H2RNekck public static void WriteError(String message)
q#PGcCtu {
nx,67u/Pb WriteLog(TraceLevel.Error, message);
'
n~N*DH }
3<msiCP Xb3vvHdI /// <summary>
9#6ilF:F /// 将警告信息记录到Win2000/NT事件日志中
(s{%XB:K /// <param name="message">需要记录的文本信息</param>
'eqvK|Uj: /// </summary>
J\
public static void WriteWarning(String message)
$b$r,mc {
uW[s? WriteLog(TraceLevel.Warning, message);
lLtC9: }
j&m<=-q n*iaNaU"' /// <summary>
QbqLj>-AJ /// 将提示信息记录到Win2000/NT事件日志中
jO:<"l^+u /// <param name="message">需要记录的文本信息</param>
Q:VD2<2 /// </summary>
wQnr*kyza public static void WriteInfo(String message)
D?5W1m]E,s {
n3b@6V1_ WriteLog(TraceLevel.Info, message);
dt3Vy*zL }
>o>'@)I?e6 /// <summary>
oRWsi/Zf /// 将跟踪信息记录到Win2000/NT事件日志中
;{Z2i% /// <param name="message">需要记录的文本信息</param>
E4y"$U%. /// </summary>
)_2!1 public static void WriteTrace(String message)
gYzKUX@ {
zLXtj- WriteLog(TraceLevel.Verbose, message);
J;q3
fa }
`O}.
.N]g ( v
~/glf /// <summary>
<O\z`aA'q /// 格式化记录到事件日志的文本信息格式
'T|.<u@~ /// <param name="ex">需要格式化的异常对象</param>
y'yaCf /// <param name="catchInfo">异常信息标题字符串.</param>
nVyb B~.= /// <retvalue>
`(o1& /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
i,yK&*>JJ /// </retvalue>
&*)tqQeQf /// </summary>
s.GhquFCrU public static String FormatException(Exception ex, String catchInfo)
6o1.?t? {
ki+9Ln; StringBuilder strBuilder = new StringBuilder();
4a2&kIn if (catchInfo != String.Empty)
3UN Jj&-` {
qo.
6T strBuilder.Append(catchInfo).Append("\r\n");
0|^x[dh }
9I.v?Tap strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
vCpi|a_eCu return strBuilder.ToString();
1@nR.v"$ }
M3t_!HP}! rf`Br\g8 /// <summary>
n~)Y% xe[U /// 实际事件日志写入方法
+p cj8K% /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
\
qs6% /// <param name="messageText">要记录的文本.</param>
Iiy:<c /// </summary>
y1
}d(% private static void WriteLog(TraceLevel level, String messageText)
?xf;#J+{8 {
Czci6Lz try
q?^0
o\ {
l =_@<p EventLogEntryType LogEntryType;
!}3`Pl.(r switch (level)
yav)mO~QU6 {
<HzAh<_@F case TraceLevel.Error:
/ P:Hfq LogEntryType = EventLogEntryType.Error;
5PPy+36<~ break;
7GIv3Dc case TraceLevel.Warning:
18n84RkI9 LogEntryType = EventLogEntryType.Warning;
&
9]KkY= break;
{//F>5~[ case TraceLevel.Info:
%zelpBu+ LogEntryType = EventLogEntryType.Information;
52["+1g\ break;
@LE?XlhD case TraceLevel.Verbose:
kCC9U_dj, LogEntryType = EventLogEntryType.SuccessAudit;
ipzUF o<w break;
y(]|jRo default:
C5WCRg5& LogEntryType = EventLogEntryType.SuccessAudit;
tZ@+18 break;
RYV6hp)| }
/-hF<oNQ (O-)uC EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
2 Lamvf //写入事件日志
~r!5d@f.6 eventLog.WriteEntry(messageText, LogEntryType);
y[zA[H: R|CY4G
j }
_$'Mx'IC= catch {} //忽略任何异常
kdUGmR0d }
B![5+ } //class ApplicationLog
fD~!t 8J }
L@z !,r, rq1kj 8%2 12.Panel 横向滚动,纵向自动扩展
ZM vTDH! <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
C^%zV>o jSFN/C.9h 13.回车转换成Tab
h3kHI?jMWG <script language="javascript" for="document" event="onkeydown">
]v{fFmL if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
baNfS event.keyCode=9;
I:e2sE
": </script>
t>wxK
, }R1`ThTM onkeydown="if(event.keyCode==13) event.keyCode=9"
Y/S3)o f^)uK+:. 14.DataGrid超级连接列
N4To#Q1w DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
VDTY<= Q ~}5Ml_J$,l 15.DataGrid行随鼠标变色
|sFe:TX private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
5ZA%,pH>Jq {
1qC:3
;P if (e.Item.ItemType!=ListItemType.Header)
~B&*7Q7 {
g&4~nEp e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
8sIrG e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
=4e=wAO(i }
M_1Tx }
gOyY#]g QWHy=(! 16.模板列
qu~|d}0 <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
`XxG"k\/S <ITEMTEMPLATE>
O4/n!HOb <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
d=Do@)
m| </ITEMTEMPLATE>
-(w~LT$ " </ASP:TEMPLATECOLUMN>
bV`C;RPn cHL]y0> <ASP:TEMPLATECOLUMN headertext="选中">
^v!im\ r <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
b!]0mXU <ITEMTEMPLATE>
fT3*>^Uv <ASP:CHECKBOX id="chkExport" runat="server" />
HB7( </ITEMTEMPLATE>
6!B^xm.R @ <EDITITEMTEMPLATE>
`.'i V[fr <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
upypxC </EDITITEMTEMPLATE>
AnNPTi </ASP:TEMPLATECOLUMN>
^m*3&x8 =fl%8"%N& 后台代码
eZg$AOpU protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
[O2h-` {
?g2zmI!U //改变列的选定,实现全选或全不选。
Kax#OYLpg CheckBox chkExport ;
Wo{K} if( CheckAll.Checked)
.nEs:yn {
P5xI foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
q]^,vei {
{XtoiI chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
o{V#f_o chkExport.Checked = true;
R<_?W#$j }
td >,TW=A* }
a/~29gW8E\ else
Gn59yG!4 {
ic-IN~J- foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
{I{3 (M#" {
c3] C:t+ chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
"tL2F*F"6X chkExport.Checked = false;
p1D()- }
xP{-19s1] }
^agj4$ }
R2 lXTW* WL l_'2h 17.数字格式化
Seda } R)+t]} 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
xc;DdK=1X <%#Container.DataItem("price","{0:¥#,##0.00}")%>
T C8`JU=wV F$Q04Qw int i=123456;
V^n0GJNo string s=i.ToString("###,###.00");
QU/fT_ORw b`CWp;6Y 18.日期格式化
tPU-1by$ /^:2<y8Ha 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
O*G1 QX )eYDQA>J 显示为: 2004-8-11 19:44:28
^e%}[q[>| /r^[a,Q#x 我只想要:2004-8-11 】
& Kmy}q
<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
tnb$sulc+ `~h4D(n` 应该如何改?
_D,eyP9P M2@;RZ(| 【格式化日期】
LA4<#KP ^.goO] 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
pu4,0bw WUEHB 【日期的验证表达式】
#BY`h~&T |P~;C6sf A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
;..o7I ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
<7)Fh*W@ OBOwz4< B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
E0 l_-- ^\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]))$
cCiI{ wLJ]&puwm 【大小写转换】
g"hJ{{< HttpUtility.HtmlEncode(string);
idc4Cf+4 HttpUtility.HtmlDecode(string)
2.lgT|p osHCg 19.如何设定全局变量
9V
0}d2d v]"L]/" Global.asax中
K84^Oq |<qs Application_Start()事件中
D WiBG sL^yB 添加Application[属性名] = xxx;
U|@V
74 "Fnq>iR- 就是你的全局变量
^3]UZ@ l7}g^\I 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
C~4PE>YtTv ,Zf
9RM HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
K'5'}Lb5k gTf|^?vd 【ASPNETMENU】点击菜单项弹出新窗口
?GT@puJS- >mq,}!n 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
HU ;#XU1 <?xml version="1.0" encoding="GB2312"?>
ZcE_f>KV <MenuData ImagesBaseURL="images/">
1wj:aD?g <MenuGroup>
aelO3'UN <MenuItem Label="内参信息" URL="Infomation.aspx" >
?>
Dtw#} <MenuGroup ID="BBC">
0?DC00O <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
_D,
;MB&7 <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
2 QTZwx ......
b=;nm#cAI `~BZ1)@ 最好将你的aspnetmenu升级到1.2版
s)J(/ RFaSwf,5n 21.读取DataGrid控件TextBox值
f9u^ R=Ff[ foreach(DataGrid dgi in yourDataGrid.Items)
iq$$+y, {
L1{GL #qV TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
U(>4s]O6 tb.Text....
)cJ#-M2 }
#-VMg+14 =='Td[ 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?
fV>CZ^=G 13k
!'P 〖思归〗
g|X ;ahTT <asp:TemplateColumn HeaderText="数量">
=T?}Nt <ItemTemplate>
-fI`3# <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
rqPo)AL onkeyup="javascript:DoCal()"
2F{hg% />
_gj&$zP M9\#Aq&\i <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
796\jf$ </ItemTemplate>
Bq\F?zk< </asp:TemplateColumn>
(& "su3z S{t +>/ <asp:TemplateColumn HeaderText="单价">
zG }? <ItemTemplate>
$``1PJoi <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
} p
FQRSOZ onkeyup="javascript:DoCal()"
7w:ef0S />
Z%zj";C
G !3n)|~r;K <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
(tah]Bx 1/1Xk,E </ItemTemplate>
mYN7kYR}<` </asp:TemplateColumn>
e1(Q(3 (
9!k# <asp:TemplateColumn HeaderText="金额">
@+vXMJ $ <ItemTemplate>
^H{R+} <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
[ylsz? </ItemTemplate>
WG*t::NN </asp:TemplateColumn><script language="javascript">
3Tq\BZ function DoCal()
=vT<EW}[ {
@*
il3h, var e = event.srcElement;
?uMQP NYs var row = e.parentNode.parentNode;
_20#2i& var txts = row.all.tags("INPUT");
Bvt@X if (!txts.length || txts.length < 3)
J9T3nTfL return;
s}j1"@ yPw'] " var q = txts[txts.length-3].value;
2YuN~- var p = txts[txts.length-2].value;
KgN)JD> Vb
qto|X@ if (isNaN(q) || isNaN(p))
jp' K%P return;
R}mn*h6 @E.k/G!~Nb q = parseInt(q);
5d@t7[] p = parseFloat(p);
V<HU6w 6!^[];%xN txts[txts.length-1].value = (q * p).toFixed(2);
%P;Q|v6/| }
PA w-6; </script>
4 g.
bR wW?,;B'74 4em;+ >D6 0b91y3R+ d*pF> j 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。
#y|V|nd page_load
Jx#k,Z4 page.smartNavigation=true
7m#[!%D 6mH/ m& 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 ?
+jC*'7p@ private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
2wqk,c[] {
^[Cv26 for(int i=0;i<e.Item.Cells.Count-1;i++)
N)% ;jh:T if(e.Item.ItemType==ListItemType.EditType)
3\;27&~gV {
midsnG+jnf e.Item.Cells.Attributes.Add("Width", "80px")
JN6-Z2 }
,%bhyww< }
x( mE<UQN YJxw 'U
>P 26.对话框
pS 4&w8s private static string ScriptBegin = "<script language=\"JavaScript\">";
j<%])
private static string ScriptEnd = "</script>";
N?dvuB 9]$8MY public static void ConfirmMessageBox(string PageTarget,string Content)
!2:3MbtR {
Wl^R8w#Z$ string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
f^e6<5gdf PCc|}*b ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
/RLq>#:h** :PbDU$x Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
cD1o"bq ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
#n\C
| //Response.Write(strScript);
l6[lJ0Y }
OEr:xK2T iNCX:Y 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
>95TvJ $N$ FtpB 1.1 取当前年月日时分秒
<I;*[;AK currentTime=System.DateTime.Now;
9+Y D!y P,gdnV
^ 1.2 取当前年
E&
36H int 年= DateTime.Now.Year;
'UM!*fk7C :&'{mJW*{t 1.3 取当前月
6*GjP ;S= int 月= DateTime.Now.Month;
_baYn`tFw- M/V(5IoP( 1.4 取当前日
ZeasYSo4P int 日= DateTime.Now.Day;
BH0!6Oq Oi:JiD= 1.5 取当前时
)Du-_Z int 时= DateTime.Now.Hour;
z)F#u:t 'Tb0-1S? 1.6 取当前分
>Pe:I int 分= DateTime.Now.Minute;
}wt%1v-10U dGH_ z8 1.7 取当前秒
+I|8Q|^SD int 秒= DateTime.Now.Second;
](r
^.k,R (0*v*kYdL+ 1.8 取当前毫秒
5{>0eFzG int 毫秒= DateTime.Now.Millisecond;
coQ[@vu m^!Sv?hV 28.自定义分页代码:
sn k$^ >?XbU} 先定义变量 :
Wb=Jj 9; public static int pageCount; //总页面数
l^ 4OC public static int curPageIndex=1; //当前页面
;?9A(q_Z O OlTrLL 下一页:
I"!'AI- if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
#0MK(Ut/ {
`\FI7s3b DataGrid1.CurrentPageIndex += 1;
9\51Z:> curPageIndex+=1;
4e%8D`/=M }
cIw
eBDl < tQc_ bind(); // DataGrid1数据绑定函数
y/4ny,s" *m_93J 上一页:
>_Uj?F: if(DataGrid1.CurrentPageIndex >0)
wkT;a&_ {
Z*bC#s? DataGrid1.CurrentPageIndex += 1;
HCc` curPageIndex-=1;
g37q/nEv }
AUAI3K? SMq9j,k bind(); // DataGrid1数据绑定函数
$Xt;A&l2? {% F`%_{" 直接页面跳转:
xURw, int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
jfSg){ ="lI i$>O if(a<DataGrid1.PageCount)
``-k{C#F {
;:_(7| this.DataGrid1.CurrentPageIndex=a;
t-lv|%+8 }
uu3M{*} t{ H1u bind();
)VY10R)$ u{+!&
2}k 29.DataGrid使用:
N *1 cj^bh 添加删除确认:
/| f[us-w private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
?waebuj> {
3uO8v{` foreach(DataGridItem di in this.DataGrid1.Items)
k#jm7 + {
^f0(aYWx if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
;Xh5oB\)W {
"3ug}k ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
lbofF==( }
^?sSx!:bZ }
0x4l5x$8 }
t[j9R#02? I9,8HtnA 样式交替:
9F)W19i. ListItemType itemType = e.Item.ItemType;
GDmv0V$6 +WdL if (itemType == ListItemType.Item )
/'"R Mq {
|DGCdB|`G e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
lR[z<2w\ e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
iW-t}}Z>B }
X$ PS(_M else if( itemType == ListItemType.AlternatingItem)
K_FBy {
O E]~@eU e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
v'$ykZ!Z e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
LiF.w:} }
XC2Q*Z X)y*#U 添加一个编号列:
J:[3;Z DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
<@%ma2 DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
o=@ UXi 2t.fD@ for(int i=0;i<dt.Rows.Count;i++)
hOV_Oqe4? {
8db6(Q~P dt.Rows["number"]=(i+1).ToString();
|B,dEx/uU }
%"{?[!C ? :
qr}M DataGrid1.DataSource=dt;
lej^gxj/2 DataGrid1.DataBind();
l; */M.B MR[N6E6Mg DataGrid1中添加一个CheckBox,页面中添加一个全选框
PaA6Z": private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
qP@L(_=g {
@i\7k(9:A foreach(DataGridItem thisitem in DataGrid1.Items)
8 `yB {
e-1;dX HL ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
j`Tm\!q }
kK08W3@&t }
D~XU`;~u F1zT )wW 将当前页面中DataGrid1显示的数据全部删除
}7otuO(pRo foreach(DataGridItem thisitem in DataGrid1.Items)
lrq>TJEcx {
o$*bm6o if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
~D$#>'C# {
JvT%R`i string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
9@JlaY)0 Del (strloginid); //删除函数
tuX =o
}
jt0H5-x }
tvGg@Xs\ f6@^Mg 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
9<+;hH8J_r nYmf(DV 在Application_Start中添加以下代码:
Zb12:? Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
nD^{Q[E6= AppSettings["ConnStr"].ToString();
sDW"j\ : Bdi pc 31. 变量.ToString()
y 8Ei=[ \HBVNBY 字符型转换 转为字符串
7O;BS}Lv= 12345.ToString("n"); //生成 12,345.00
]?v?Qfh2 12345.ToString("C"); //生成 ¥12,345.00
BT
y]!%r' 12345.ToString("e"); //生成 1.234500e+004
gPF}aaB6 12345.ToString("f4"); //生成 12345.0000
tg4LE?nv 12345.ToString("x"); //生成 3039 (16进制)
z(8)1#(n7 12345.ToString("p"); //生成 1,234,500.00%
;$E~ZT4p }[XB]Xf 32、变量.Substring(参数1,参数2);
^K1~eb*K LZ=wz.'u 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);
a>;3
j Y^*Lh/:h 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)
kMfc"JXF <SCRIPT language="javascript">
OX#eLco <!--
#U\&i` function gook(pws)
UBUB/NY {
WcV\kemf frm.submit();
HM(bR"E }
2 //-->
+R{A'Yl[( \UkNE5 </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
8.q13t!D <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
|,M#8NOp: <tr>
8M".o n <td>
{y+v-v/# <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
&UJTy' <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
[FeJ8P>z <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
gavQb3EP EA%#/n <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
!DY2{Wb <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
}QApeZd+q @@&@}IQcR1 </td>
?h>%Ix z Et6 </tr>
i"r.>X'Z dZ;~b(CA </form>
M Z|c7f&` P}.yEta 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。
SzgY2+Qq @'NaA SB 下面是获取用户输入的登陆信息的代码:
Ue>A string name;
zn?a|kt name=Request.QueryString["EmailName"];
+i q+ tswG"1R try
>m;|I/2@ {
=E6i1x%j int a=name.IndexOf("@",0,name.Length);
#IL~0t f_user.Value=name.Substring(0,a);
q9a
wzj f_domain.Value=name.Substring(a+1,name.Length-(a+1));
B 3,ig9 f_pass.Value=Request.QueryString["Psw"];
;03*qOYc }
Jb)eC?6O [&]YVn>kj catch
D .oS8' {
yrK--C8 Script.Alert("错误的邮箱!");
ay7+H7^|hZ Server.Transfer("index.aspx");
XM5;AcD }