1. 打开新的窗口并传送参数:
wn|;Li cm!|A?-< 传送参数:
XfflD9M response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
RCi8{~rIvS 4"\x# 接收参数:
@BPQ > string a = Request.QueryString("id");
O S#RCN* string b = Request.QueryString("id1");
w%::~] Spu; 2.为按钮添加对话框
l8:!{I?s= Button1.Attributes.Add("onclick","return confirm(’确认?’)");
-x:7K\=$SX button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
neE
Zw#(Z X]n`YF7 3.删除表格选定记录
6,|>;,U7 int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
xAO\' #m string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
df {\O*6 HR?bnkv|id 4.删除表格记录警告
@' %XdH private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
i[MBO`FF {
y~Yv^'Epf switch(e.Item.ItemType)
,7 m33Pv* {
}_-tJ. case ListItemType.Item :
X"mPRnE330 case ListItemType.AlternatingItem :
W7(5z case ListItemType.EditItem:
,L<x=Dg TableCell myTableCell;
G(wstHT;/ myTableCell = e.Item.Cells[14];
2Dt^W.! LinkButton myDeleteButton ;
N"tX K myDeleteButton = (LinkButton)myTableCell.Controls[0];
DZ4gp myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
9Y2.ob!$} break;
D=Nt0y default:
p!)PbSw# break;
2pvby`P4 }
Lsai8 B Yakrsi/jV} }
XH0o8\. \So)g)K 5.点击表格行链接另一页
P[$idRS& private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
u~VXe {
Nq^o8q_ //点击表格打开
Hyenn if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
,Z
:2ba e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
eD3\>Y.z }
C3N1t YMy** 双击表格连接到另一页
W#kyD)(F iQ1[60?)T 在itemDataBind事件中
Wb#<ctM> if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
L>&{<M_ {
pAqPHD= string OrderItemID =e.item.cells[1].Text;
O*lIZ,!n ...
<AiE~l| D e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
68w~I7D> }
Z-pZyDz mey -Bn 双击表格打开新一页
YXmy-o> if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
ttHRc! {
x^i97dZS^" string OrderItemID =e.item.cells[1].Text;
1HqN`])l/j ...
t/%[U,m e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
tUW^dGo. }
6i~<,;Cn UUM:*X ★特别注意:【?id=】 处不能为 【?id =】
ydRS\l 6.表格超连接列传递参数
!,{N>{I <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
Oiqc]4TL <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
H#WqO<<v X+HPdrT 7.表格点击改变颜色
6' \M:'<0e if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
wuxOFlrg {
r+6 DlT
a e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
@3 + this.style.color=’buttontext’;this.style.cursor=’default’;");
q4'`qe }
??|,wIRz A[`c+& 写在DataGrid的_ItemDataBound里
d_f*'M2Gv if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
(&V)D?/hS {
AAuwE&Gg e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
cVarvueS this.style.color=’buttontext’;this.style.cursor=’default’;");
O3dQno e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
Eh|6{LDn! }
0r[a$p>` W>c*\)Xk ! 7:=(yBG 8.关于日期格式
EM1HwapD D8xE"6T> 日期格式设定
Fo5UG2E& DataFormatString="{0:yyyy-MM-dd}"
ACFEM9 [= F9(jx#J~t 我觉得应该在itembound事件中
(KfQ'B+ e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
cRCji^,KJ O-pH~E 9.获取错误信息并到指定页面
|5q,%9_ D vN0h(? 不要使用Response.Redirect,而应该使用Server.Transfer
paYS<8In G9#3
|B-? e.g
vXSA_"0t // in global.asax
QW_v\GHx protected void Application_Error(Object sender, EventArgs e) {
mq(K_ if (Server.GetLastError() is HttpUnhandledException)
"jq6FT)O Server.Transfer("MyErrorPage.aspx");
Sht3\cJ8 G=CP17&h6 //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
!c0x^,iE }
.<YfnW5/K 3RD+;^}q3 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%&D^o) u@+^lRGFh 10.清空Cookie
hOs~/bM Cookie.Expires=[DateTime];
f'7/Wj Response.Cookies("UserName").Expires = 0
/Tw $}8 *IF~ab2 11.自定义异常处理
$RHw6*COG //自定义异常处理类
7C_U:x using System;
Dr(;A>?qG using System.Diagnostics;
Ra^c5hP:.E 1gvh6eE
F namespace MyAppException
hh.`Yu L {
LW/> % /// <summary>
'~z`kah /// 从系统异常类ApplicationException继承的应用程序异常处理类。
1-<?EOYaE /// 自动将异常内容记录到Windows NT/2000的应用程序日志
!wKNYe /// </summary>
jd"YaZOQ public class AppException:System.ApplicationException
>>;He7 {
>m=XqtP public AppException()
4
'vjU6gW {
I8IH\5k if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
@00&J~D }
j.V7`x +K2HMf' public AppException(string message)
63t'|9^5 {
goD#2lg LogEvent(message);
o?3C -A| }
cA]PZ*]{BN 5twG2p8 public AppException(string message,Exception innerException)
dWo$5Bls<A {
f,3K;S-he: LogEvent(message);
83'rQDo)G if (innerException != null)
a",
8N"' {
| OZ>5 LogEvent(innerException.Message);
mVK^gJ3 }
P8ns @VV }
`V*$pHo JiXN"s^mcb //日志记录类
=~dXP using System;
K8QEHc: using System.Configuration;
g`"_+x' using System.Diagnostics;
M{Vi4ehOq using System.IO;
/
=v1.9( using System.Text;
C
[8='i26 using System.Threading;
N]|)O]/[ lZ`@ }^& namespace MyEventLog
; H]]H! {
/ >7G /// <summary>
UVsF !0 /// 事件日志记录类,提供事件日志记录支持
fnFIw=d /// <remarks>
1=~ ##/at /// 定义了4个日志记录方法 (error, warning, info, trace)
0Yr-Q;O<f /// </remarks>
OPv~1h<[ /// </summary>
e4.G9( public class ApplicationLog
:<1PCX2 {
=RlAOgJ /// <summary>
>k~3W> D /// 将错误信息记录到Win2000/NT事件日志中
)S@TYzdAN /// <param name="message">需要记录的文本信息</param>
SK,UW6h /// </summary>
,twm)%caU public static void WriteError(String message)
G49`a*Jn {
!4$o*{9Lx: WriteLog(TraceLevel.Error, message);
"T>;wyGW }
}\W^$e- 0F&(}`V /// <summary>
`2HNQiK'@ /// 将警告信息记录到Win2000/NT事件日志中
<*ME&cgh4 /// <param name="message">需要记录的文本信息</param>
DM(c :+K- /// </summary>
^X:g C9 public static void WriteWarning(String message)
sHSg _/| {
5hlS2fn WriteLog(TraceLevel.Warning, message);
N_VWA.JHt }
-e *(+ - KaU@t /// <summary>
cA!o
xti /// 将提示信息记录到Win2000/NT事件日志中
'^,|8A2 /// <param name="message">需要记录的文本信息</param>
uC 2{
Mmy /// </summary>
0qN+W&H public static void WriteInfo(String message)
rp!{QG {
|W|RX3D WriteLog(TraceLevel.Info, message);
D}nRH@<` }
9t&m\J
>8; /// <summary>
Z.U8d( /// 将跟踪信息记录到Win2000/NT事件日志中
!XF:.| /// <param name="message">需要记录的文本信息</param>
g'.(te | /// </summary>
-&np/tEu& public static void WriteTrace(String message)
;7mE%1X {
N6!9QIu~i WriteLog(TraceLevel.Verbose, message);
PD:lI]:s }
m=^ihQ Q\2~^w1V /// <summary>
(:7Z-V2( /// 格式化记录到事件日志的文本信息格式
3lefB
A7 /// <param name="ex">需要格式化的异常对象</param>
vUJQ<D /// <param name="catchInfo">异常信息标题字符串.</param>
[-3x *?Ju /// <retvalue>
}#` -mRaU /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
g+KuK`\N% /// </retvalue>
WiF6*]oI /// </summary>
V_=7q=9mV public static String FormatException(Exception ex, String catchInfo)
p8E6_%Rw {
'77Gg StringBuilder strBuilder = new StringBuilder();
TK Ec^ if (catchInfo != String.Empty)
l3YS_WBSn {
[4\n(/ strBuilder.Append(catchInfo).Append("\r\n");
-1]8f }
U#(#U0s*- strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
#pWeMt' return strBuilder.ToString();
VP"C|j^I }
+J2;6t CVGQ<,KVW /// <summary>
-Dr)+Y /// 实际事件日志写入方法
aq.Lnbi/X /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
g6;a2 /// <param name="messageText">要记录的文本.</param>
Iv>4o~t /// </summary>
u 9kh@0 private static void WriteLog(TraceLevel level, String messageText)
JS(%: {
lXu6=r try
:v 8~'cZ {
$`|\aXd[C* EventLogEntryType LogEntryType;
<io;d$=} switch (level)
e]3b0`E {
c+G%o8 case TraceLevel.Error:
|SwW*C LogEntryType = EventLogEntryType.Error;
%xP'*EaM? break;
H>|*D~RdT case TraceLevel.Warning:
OF 1Qr bj LogEntryType = EventLogEntryType.Warning;
j>|mpfU break;
I?Q[ZH:M case TraceLevel.Info:
QlH,-]N$L LogEntryType = EventLogEntryType.Information;
<U2Un 0T break;
3t:/Guyom8 case TraceLevel.Verbose:
KO=H!Em\l LogEntryType = EventLogEntryType.SuccessAudit;
Kbqx)E$iL break;
4So
,m0v default:
je5GZFQw LogEntryType = EventLogEntryType.SuccessAudit;
k6^!G " break;
:<R"Kk@ }
]+@I]\S4 $/$ 5{< EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
^ <+V[=X //写入事件日志
hta y- eventLog.WriteEntry(messageText, LogEntryType);
{3|h^h_R T9-2"M=|< }
sf'+; catch {} //忽略任何异常
GvT ~zNd }
*T0!q#R } //class ApplicationLog
3KN})*1 }
t@3y9U$ OEXa^M4x
12.Panel 横向滚动,纵向自动扩展
>vfbXnN <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
[D<"qT^*z6 ?9:~d#p 13.回车转换成Tab
]"VxEpqhM <script language="javascript" for="document" event="onkeydown">
bt0Q6v5 if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
,];QzENw event.keyCode=9;
W$Op/ </script>
5HW'nhE g66SCr} onkeydown="if(event.keyCode==13) event.keyCode=9"
;hJz'&UWQ P] qL&_ 14.DataGrid超级连接列
\CZD.2p#& DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
NrWgaPO)i =4:]V\o):' 15.DataGrid行随鼠标变色
Q<2`ek private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
1'BC
R {
`z?h=&N if (e.Item.ItemType!=ListItemType.Header)
) 0|X];sD {
[F}_Ime e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
[IPXU9&Q e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
Ae_:Kc6 }
ExZ|_7^< }
+`'>
3 cF4xUIZ 16.模板列
!A&>Eeai <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
+$\/HO <ITEMTEMPLATE>
m"RSDM!
<ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
!6l}s$1i| </ITEMTEMPLATE>
P,={ C6* </ASP:TEMPLATECOLUMN>
ja+PVf 0{!+N6MiR <ASP:TEMPLATECOLUMN headertext="选中">
uxsi+vkI <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
M|}V6F_y <ITEMTEMPLATE>
L<[%tv V <ASP:CHECKBOX id="chkExport" runat="server" />
4LkW`Sbm </ITEMTEMPLATE>
zL/rV< <EDITITEMTEMPLATE>
&v g[k#5 <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
8m 5T
</EDITITEMTEMPLATE>
-^&NwLEv= </ASP:TEMPLATECOLUMN>
8;"HM5+ YzeNr* 后台代码
:L5k#E"u protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
i{4J$KT {
2su/I //改变列的选定,实现全选或全不选。
1Y(NxC0P=g CheckBox chkExport ;
4)NbQ[ if( CheckAll.Checked)
,<!v!~Iy {
Vl%UT@D| foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
(u-eL#@ {
V[ 'lB.&t chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
eizni\ chkExport.Checked = true;
eR>|1s%^ }
V&Q_iE }
fOt?2Bh else
/SD(g@G, {
}5]7lGR foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
9oTtH7% {
7)dCdO chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
b;IzK' chkExport.Checked = false;
Vi'zSR28Z }
Tga%-xr+ }
%ZM"c }
1}ws@hU -xL^UcG0 17.数字格式化
|wGmu&fY ^:Fj+d 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
F-%Hw <%#Container.DataItem("price","{0:¥#,##0.00}")%>
-SUK [<=X aXh~w<5F int i=123456;
)8*}-z string s=i.ToString("###,###.00");
\"1%>O* @cu#rWiG 18.日期格式化
uo-1.[9ds eNu]K,rT 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
c)4L3W-x= ^"] ]rZ) 显示为: 2004-8-11 19:44:28
e&-MP;kgW9 Fuy"JmeR
我只想要:2004-8-11 】
$nr=4'yZ <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
vC!B}~RG ^5rB/y, 应该如何改?
_t?# ~'w]%rh! 【格式化日期】
fxknfgbg UT_kw}1o 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
,ut7`_Fy kc/" 【日期的验证表达式】
: 22)` ;0 QzVo U | A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
YT'olk ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
P71] Z _f"KB=A_x B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
rVZl v3 ^\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]))$
i'p6# z>z9xG' 【大小写转换】
:pvB}RYD HttpUtility.HtmlEncode(string);
=d#(n M* HttpUtility.HtmlDecode(string)
[,sm]/Xlc D-LQQ{!D5 19.如何设定全局变量
a g6[Nk H @5dj} Global.asax中
vOo-jUKs NK6~qWsu Application_Start()事件中
zx7A}rs3oX `PZcL2~E 添加Application[属性名] = xxx;
6k`O [C{oj*"c] 就是你的全局变量
3 L:SJskYR mwO9`AU; 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
ujS C sq{=TB{ HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
WOi+y }U|0F#0$ 【ASPNETMENU】点击菜单项弹出新窗口
T'!p{Fbg; HutQx 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
4Q:r83# <?xml version="1.0" encoding="GB2312"?>
+<bvh<]Od <MenuData ImagesBaseURL="images/">
^Q9K]Vo <MenuGroup>
KzQuLD(e <MenuItem Label="内参信息" URL="Infomation.aspx" >
rlY n"3% <MenuGroup ID="BBC">
jEn9T <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
$bl<mG%#9 <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
-+[~eqRB ......
9Y+7o%6e '0v]?mM 最好将你的aspnetmenu升级到1.2版
iLQ;`/j l~mj>$ 21.读取DataGrid控件TextBox值
-?w3j9kk> foreach(DataGrid dgi in yourDataGrid.Items)
|f1RhB {
i?861Hu TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
Ffig0K+` tb.Text....
(L`IL e*
}
UJ><B" o:`^1 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?
`=%G&_3_< PLq]\y 〖思归〗
o)+C4f[G4 <asp:TemplateColumn HeaderText="数量">
g%okYH? <ItemTemplate>
P q1 j <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
Ml6}47n onkeyup="javascript:DoCal()"
'EC0|IT)c />
N
;Cs? C +/ ?oyC+Z <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
(-xVW#39 </ItemTemplate>
u)vS,dzu
</asp:TemplateColumn>
rJ(A O'= Vi#[kn' <asp:TemplateColumn HeaderText="单价">
Q5]rc`}
5 <ItemTemplate>
m[ER~]L/C <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
BmaY&? onkeyup="javascript:DoCal()"
hPuF:iiQ4 />
a:KL{e[ ~( :$c3\ <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
KQ ^E\,@o SgkW-# </ItemTemplate>
i
^,
$/ </asp:TemplateColumn>
5?.!A
'zb P| ftEF <asp:TemplateColumn HeaderText="金额">
&FG0v<f5Pv <ItemTemplate>
OZ/"W)
<asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
H(kxRPH4@] </ItemTemplate>
=.l>Uw! </asp:TemplateColumn><script language="javascript">
mR~S$6cc function DoCal()
JFq<sY! {
>7z(?nQYT^ var e = event.srcElement;
*ZIX76y<!A var row = e.parentNode.parentNode;
iD/+#UTY var txts = row.all.tags("INPUT");
|h6,.#n if (!txts.length || txts.length < 3)
vhzz(UPUt return;
h+}{FB 29 Q.Y6 var q = txts[txts.length-3].value;
w$j6 !z var p = txts[txts.length-2].value;
JOyM#g9-? %Vfr#j$= if (isNaN(q) || isNaN(p))
58R.`5B return;
m~4ik1wq 8( Q[A q = parseInt(q);
5 BeU/ p = parseFloat(p);
{\X$vaF TN<"X :x9 txts[txts.length-1].value = (q * p).toFixed(2);
0^)~p{Zh }
Jl|^^? </script>
G?!8T91; *+(eH#_2/ .g94|P _#we1m -s\R2_( 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。
uQKo2B0 page_load
QcX&q%*0 page.smartNavigation=true
wbI1~/ AmJdZs|/ 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 ?
J+wnrGoK private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
`l %,4qR {
X{ :3UTBR for(int i=0;i<e.Item.Cells.Count-1;i++)
,;Uf>8~ if(e.Item.ItemType==ListItemType.EditType)
Hs6Kki1 {
A@-U#UvN e.Item.Cells.Attributes.Add("Width", "80px")
dj}|EW4 }
UzW]kY[A< }
?1r<`o3l\ eI%kxqc 26.对话框
&qM8)2Y private static string ScriptBegin = "<script language=\"JavaScript\">";
(M{>9rk8 private static string ScriptEnd = "</script>";
. BX*C ?Ss~!38 public static void ConfirmMessageBox(string PageTarget,string Content)
GNSh`Tm =# {
2*]
[M,L0c string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
a'd=szt iiWpmE<, ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
Tl#2w= TD78&a# Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
jvpv1>KYV ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
Eo6qC?5< //Response.Write(strScript);
$LcMG,8%_ }
b1G6'~U - '&$zgK9T? 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
X&Sah}0V& 4vNH"72P 1.1 取当前年月日时分秒
GL,[32~C currentTime=System.DateTime.Now;
e
[6F }."c Ggy?5N7P 1.2 取当前年
N^AlhR^ int 年= DateTime.Now.Year;
Spn)M79 /1uGsE+[ 1.3 取当前月
h iK}& int 月= DateTime.Now.Month;
P@%L.y
B jy_4W!4a 1.4 取当前日
C0/G1\ int 日= DateTime.Now.Day;
^ >
?C ^/#8 " 1.5 取当前时
h"'}Z^ int 时= DateTime.Now.Hour;
G[u{! 2RS Tt=;of{ 1.6 取当前分
%a:T9v int 分= DateTime.Now.Minute;
@Vy Ne(U l}k'ZX 4 1.7 取当前秒
JY,oXA6O int 秒= DateTime.Now.Second;
FlY"OU* ej1WkaR8
1.8 取当前毫秒
B?Rkz int 毫秒= DateTime.Now.Millisecond;
:_`Yrx5 n xR\tBv 28.自定义分页代码:
=W>a ~e]/ <fA}_BH%] 先定义变量 :
ltMcEv-d0 public static int pageCount; //总页面数
=
uepg@J public static int curPageIndex=1; //当前页面
=@q,/FR- if3z Fh 下一页:
}J2f$l>R if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
q(4Ny<=,'K {
.u`A4;;Gw DataGrid1.CurrentPageIndex += 1;
{xOzxLB; curPageIndex+=1;
}SyK)W5Y }
i6y=3k e@S\7Ks bind(); // DataGrid1数据绑定函数
q8,,[R_ 3#GIZL}!x 上一页:
*I}_g4 if(DataGrid1.CurrentPageIndex >0)
hS>=pO+y {
Qstd;qE~ DataGrid1.CurrentPageIndex += 1;
ln":j?` curPageIndex-=1;
M(uJ'Ud/! }
73_-7'^mQ ;e9&WEG_\ bind(); // DataGrid1数据绑定函数
+_QcLuV, XQmg^x[,A 直接页面跳转:
P"Z1K5>2L int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
g@pK9R%wH< J HV if(a<DataGrid1.PageCount)
Q'?VLv|@ {
$ f||!g this.DataGrid1.CurrentPageIndex=a;
gvL*]U7 }
S,f#g?V woF{O)~X bind();
JXR]G 1/6}E]-F 29.DataGrid使用:
DF-.|-^9I B}K<L\S 添加删除确认:
J,s:CBCGL private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
FMzG6nrdBN {
6&L;Sw#Dg foreach(DataGridItem di in this.DataGrid1.Items)
NbCIL8f] {
P
m&^rC; if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
5H|7DVG {
6E(..fo:" ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
_c-(T&u< }
0%,?z`UY }
@X9T" }
+Fh,!` 3II*NANeg 样式交替:
I :bT"N ListItemType itemType = e.Item.ItemType;
^upd:q ,f<J4U:Y if (itemType == ListItemType.Item )
Nus]]Iy-g {
"v0SvV<7 e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
hW6Ksn,* e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
c `.BN( }
77wod}h!: else if( itemType == ListItemType.AlternatingItem)
-3 "<znv {
563ExibH e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
Vi0D>4{+ e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
QjYw^[o }
v yt|x5 <'BsQHI 添加一个编号列:
ZF8`=D`:R DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
FPPl^ DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
rEbH<| .'h^ for(int i=0;i<dt.Rows.Count;i++)
oiD{Z {
ml!c0< dt.Rows["number"]=(i+1).ToString();
BxZ7Bk }
AVfF<E/ @2hOy@V DataGrid1.DataSource=dt;
}9!}T~NMs DataGrid1.DataBind();
`)MKCw$e q!~DCv df DataGrid1中添加一个CheckBox,页面中添加一个全选框
[$:L|V!{ private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
8U7dd[ {
Lr=^0 foreach(DataGridItem thisitem in DataGrid1.Items)
@gM}&G08 {
fr$6&HDZ9 ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
C@<gCM j," }
6Ypc]ym=J }
xr7M#n a`?Vc}& 将当前页面中DataGrid1显示的数据全部删除
5PC:4 foreach(DataGridItem thisitem in DataGrid1.Items)
{wDe#c{_ {
<Of-,PcCV if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
v!$?;"d+ {
`O;4b#!g string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
@Pi]kWW}) Del (strloginid); //删除函数
2^w{Hcf }
.[3C }
Ttp%U8-LJR /-WmOn* 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)
c~OvoTF, @D `j 在Application_Start中添加以下代码:
H<P d& Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
hb
%F"Q AppSettings["ConnStr"].ToString();
@O-\s q &] xtx>qg< 31. 变量.ToString()
)r)ZmS5O Gvvw:]WgF 字符型转换 转为字符串
<aI}+ 12345.ToString("n"); //生成 12,345.00
Cb.M 12345.ToString("C"); //生成 ¥12,345.00
*/K]sQZa 12345.ToString("e"); //生成 1.234500e+004
og&h$<uOZt 12345.ToString("f4"); //生成 12345.0000
LnsYtkbr 12345.ToString("x"); //生成 3039 (16进制)
N.ZuSkRM 12345.ToString("p"); //生成 1,234,500.00%
2"%f:?xV{ ` K0PLxSv 32、变量.Substring(参数1,参数2);
]&`=p{Z ]mgpd}Y 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
ASr@5uFR AN|f:259 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
%L
wq. <SCRIPT language="javascript">
7u5H o` <!--
3f~znO function gook(pws)
2iOYC0`! {
]D=fvvST frm.submit();
)%f]P<kq6 }
"V`DhOG& //-->
XD_!5+\H1 T=@Ygjk </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
/WLZyT2 <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
\=&Z_6Mu <tr>
Gi2Fjq/Y <td>
*Tr{a_{~C <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
8F's9c, <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
OjqT5<U <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
mG0_&'"YIG L.}sN. <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
"*(a2k3J <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
^=PY6! iW P:3o}CB1I </td>
r}:U'zlC{ -z
se+]O` </tr>
"}H2dn2n a0Fq$ </form>
-%{+\x2 9U=6l]Np 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。
=A$d)& *19a\m=>oi 下面是获取用户输入的登陆信息的代码:
q9a6s{, string name;
sOS^ name=Request.QueryString["EmailName"];
+ ef>ek nNnfcA&W try
=En1?3? {
_9Rj, int a=name.IndexOf("@",0,name.Length);
R\/tKZJjb f_user.Value=name.Substring(0,a);
1rLxF{, f_domain.Value=name.Substring(a+1,name.Length-(a+1));
#YK3Ogb, f_pass.Value=Request.QueryString["Psw"];
d 3#e7rQ8 }
{SRD\&J[ fE3%$M[V7 catch
}1lZW"{e[ {
)V*`(dn'zm Script.Alert("错误的邮箱!");
?U1Nm~'UZ Server.Transfer("index.aspx");
CJs
~!ww }