1. 打开新的窗口并传送参数:
d@ZoV Zi/-~')E 传送参数:
^>^\CP] response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
B7!;]'&d frc{>u~t 接收参数:
E67XPvo1+@ string a = Request.QueryString("id");
E5gl ^Q?Z string b = Request.QueryString("id1");
7/?DP wbx Y%g "Y 2.为按钮添加对话框
9 ZGV%Tw Button1.Attributes.Add("onclick","return confirm(’确认?’)");
aM$=|%9/ button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
K_>/lirE? y@A6$[%(E| 3.删除表格选定记录
Ff<)4`J int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
B'p5M.6d#: string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
b66R}=P l [/OQyb4F< 4.删除表格记录警告
,]7XMU3 private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
y\#o2PVmY {
nhewDDu switch(e.Item.ItemType)
j&CZ=?K^c {
q`^3ov^</ case ListItemType.Item :
WYLX?x case ListItemType.AlternatingItem :
P>wZ~Hjk case ListItemType.EditItem:
#h N.=~ TableCell myTableCell;
2:'lZQ myTableCell = e.Item.Cells[14];
BC({ EE~R) LinkButton myDeleteButton ;
DWrbp myDeleteButton = (LinkButton)myTableCell.Controls[0];
]_u`EvEx6 myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
YBvd
q1 break;
o@3B(j;J` default:
/UHp [yod break;
vLDi ; }
43L|QFo EeB3 } }
$)*xC!@6X '#H")i 5.点击表格行链接另一页
\XS]N_}8> private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
<tuS,. {
Dx3 %KS //点击表格打开
JNBT^=x if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
R hio7C e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
~^7r?<aKc }
JYV\oV{ &XQZs`41+ 双击表格连接到另一页
ltSh'w0 S?4KC^Y5 在itemDataBind事件中
io2@}xZF if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
oy5+}` {
L/x(RCD string OrderItemID =e.item.cells[1].Text;
Cs4hgb| ...
7|Dn+= e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
lw[<STpD; }
([KN*OF XG&K32_fs 双击表格打开新一页
X NE+(Bt if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
TwFb%YM {
Z`s!dV]e9 string OrderItemID =e.item.cells[1].Text;
)6{P8k4Zr ...
1lcnRHO e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
O]{*(J/t }
_|<BF $<OhGk- ★特别注意:【?id=】 处不能为 【?id =】
ug#<LO-.Rd 6.表格超连接列传递参数
2-mQt_
i <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
/^2CGcT( <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
E[?kGR[ _{Y$o'*#I 7.表格点击改变颜色
T3z(k
la if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
yM ,VrUh {
<%K UdkzEP e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
? )_7U this.style.color=’buttontext’;this.style.cursor=’default’;");
i03gX<=* }
t`u!]DHv 7'OPjtM 写在DataGrid的_ItemDataBound里
:JlDi>B if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
"2;N2=~7 {
x=,8[W#XT e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
GN%(9N'W this.style.color=’buttontext’;this.style.cursor=’default’;");
_7@z_i_c e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
^i`*Wm@! }
l>7r2; J]fS({(\I 2xTT)9Tq* 8.关于日期格式
?@UAL.y GMm'of# 日期格式设定
uV~e|X
"9s DataFormatString="{0:yyyy-MM-dd}"
:woa&(wN;1 <Wy>^<` 我觉得应该在itembound事件中
*]x_,:R6Ow e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
K@r*;T O<GF> 9.获取错误信息并到指定页面
hhmGv9P 2-v\3voN 不要使用Response.Redirect,而应该使用Server.Transfer
RH1uVdJ1 7Fl-(Nv` e.g
kon=il<@ // in global.asax
Ei~f`{i protected void Application_Error(Object sender, EventArgs e) {
QlD6i-a if (Server.GetLastError() is HttpUnhandledException)
7lU.Nit Server.Transfer("MyErrorPage.aspx");
ow.j+<M oT3Y!Y3=< //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
#C\4/g?=, }
Jqru AW< D$nK`r Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
p5<2N /2@["*^$ 10.清空Cookie
4;*f1_;f~ Cookie.Expires=[DateTime];
%-j&e44 Response.Cookies("UserName").Expires = 0
gj+3y9 I/B1qw;MN 11.自定义异常处理
xK;e\^v //自定义异常处理类
"^%Z'ou using System;
~>%DKJe using System.Diagnostics;
Zq*eX\#C 3k'.(P|F namespace MyAppException
A1A3~9HuK {
5f{|"LG& /// <summary>
.7Kk2Y /// 从系统异常类ApplicationException继承的应用程序异常处理类。
&iSD/W /// 自动将异常内容记录到Windows NT/2000的应用程序日志
Nn#u%xvJt /// </summary>
9#rt:&xo0 public class AppException:System.ApplicationException
jTSOnF}C~+ {
5 =Z!hQ} public AppException()
Uix{" {
tt4+ m>/T if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
#D)x}#V\ }
}.{}A(^YR 9;KJr[FQV public AppException(string message)
.Z%G@X* {
>;nS8{2o LogEvent(message);
Coa -8j*R7 }
@J vZ[T/ >V!LitdJ public AppException(string message,Exception innerException)
~L4eZ {
D;js.ZF LogEvent(message);
Y\?j0X; if (innerException != null)
arh@`'Q {
@E_zR LogEvent(innerException.Message);
E
_iO@ }
mU G
%LM }
`="v>qN2\ 7GZq|M_:y //日志记录类
Z2p> n`D using System;
+t]Xj1Q using System.Configuration;
yP\Up using System.Diagnostics;
("Dv>&w9 using System.IO;
ZBc|438[ using System.Text;
z[&s5" using System.Threading;
]k+m=OR{/ _;e\:7<m namespace MyEventLog
D,rZ0?R {
}<[Db}?9 /// <summary>
+LzovC@^ /// 事件日志记录类,提供事件日志记录支持
`6Hf&u< /// <remarks>
XDLEVSly7 /// 定义了4个日志记录方法 (error, warning, info, trace)
c> G@+ /// </remarks>
-G b-^G /// </summary>
Eark) public class ApplicationLog
gyus8#s T {
fp&Got!pB /// <summary>
7+XM3 /// 将错误信息记录到Win2000/NT事件日志中
gfo}I2" /// <param name="message">需要记录的文本信息</param>
'sU)|W(3U /// </summary>
)5yj/0oT public static void WriteError(String message)
4}yE+dRUK: {
=!<G!^ WriteLog(TraceLevel.Error, message);
mG(N:n%*K }
+d39f-[ :vQM>9l7 /// <summary>
0Nr\2| /// 将警告信息记录到Win2000/NT事件日志中
kuS/S\Z5K /// <param name="message">需要记录的文本信息</param>
3Gd0E;3sk~ /// </summary>
T*P+Fh" public static void WriteWarning(String message)
wO!u!I {
BGqa-d WriteLog(TraceLevel.Warning, message);
i\p:#'zk5 }
Q4K+*Fi} {Y_Nj`#BT /// <summary>
nj2gs,k /// 将提示信息记录到Win2000/NT事件日志中
h>3H7n. /// <param name="message">需要记录的文本信息</param>
Hj~O49%j& /// </summary>
OM!=ViN(= public static void WriteInfo(String message)
I;j3*lV_ {
^ d\SPZ WriteLog(TraceLevel.Info, message);
/V^sJ($V$~ }
3N<&u /// <summary>
}kPVtSQ /// 将跟踪信息记录到Win2000/NT事件日志中
25em[Q:
/// <param name="message">需要记录的文本信息</param>
4lz{G*u /// </summary>
J{~Rxa public static void WriteTrace(String message)
9S1#Lr`r {
t[2i$%NVM WriteLog(TraceLevel.Verbose, message);
zj20;5o>U& }
xo~g78jm7, 6P+DnS[] /// <summary>
XO
wiHW{ /// 格式化记录到事件日志的文本信息格式
S< x:t( /// <param name="ex">需要格式化的异常对象</param>
4/MNqit+ /// <param name="catchInfo">异常信息标题字符串.</param>
u~'OcO /// <retvalue>
/77z\[CeYH /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
#x~_`>mDN /// </retvalue>
2k+16/T /// </summary>
-e*BqH2t public static String FormatException(Exception ex, String catchInfo)
v2J0u:#, {
Q!$IQJ]|Y StringBuilder strBuilder = new StringBuilder();
D 'L{wm if (catchInfo != String.Empty)
\ X$)vK {
-P#nT 2 strBuilder.Append(catchInfo).Append("\r\n");
;.s:X }
t)I0lnbs strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
"DjU:*' return strBuilder.ToString();
=Ahw%`/&}] }
v*r9j8 Z[}
$n-V /// <summary>
"$8w.C /// 实际事件日志写入方法
p>p'.#M /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
gpAHC /// <param name="messageText">要记录的文本.</param>
s*JE) /// </summary>
Qp!J:YV private static void WriteLog(TraceLevel level, String messageText)
o}~3JBnT {
yWHne~! try
X47O l {
3w'W~ EventLogEntryType LogEntryType;
Jz$>k$!UD switch (level)
;0j*>fb\q7 {
k/#>S*Ne case TraceLevel.Error:
u(hC^T1 LogEntryType = EventLogEntryType.Error;
263*: Y break;
0QoLS|voA/ case TraceLevel.Warning:
5Y-2
# LogEntryType = EventLogEntryType.Warning;
PU+1=%'V break;
./.=Rw case TraceLevel.Info:
:[?!\m%0 LogEntryType = EventLogEntryType.Information;
%fpsc_ break;
Dl\d_:+ case TraceLevel.Verbose:
Dh`=ydI5 LogEntryType = EventLogEntryType.SuccessAudit;
kCp)!hVQ break;
F5IZ"Itu( default:
W)-hU~^OM LogEntryType = EventLogEntryType.SuccessAudit;
XGIpUz break;
wLMvC{5 }
bi,mM,N/ Ab
g$W/(| EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
W5/};K\. //写入事件日志
0N VI+Z$ eventLog.WriteEntry(messageText, LogEntryType);
7@P656{ RpN <= }
Qa?aL catch {} //忽略任何异常
uF<S }
};p~A-E= } //class ApplicationLog
;*QN9T=0 }
Jvj=I82 P6we(I`"2 12.Panel 横向滚动,纵向自动扩展
T} 8CfG_j <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
':sTd^V ^&m?qKN8 13.回车转换成Tab
.e$%[)D <script language="javascript" for="document" event="onkeydown">
rIlBH*aT if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
5_aw.s> event.keyCode=9;
u]*5Ex (? </script>
ysVi3eq w_H2gaQ onkeydown="if(event.keyCode==13) event.keyCode=9"
oCA(FQ6 >0V0i%inmF 14.DataGrid超级连接列
0n5!B..m} DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
^0Q'./A{& \G3!TwC% 15.DataGrid行随鼠标变色
[B,p,Q" private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
2 `&<bt[g {
dXO=ZU/N if (e.Item.ItemType!=ListItemType.Header)
f".q9{+p, {
ue9h e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
J)huy\>, e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
qUg9$oh{LI }
8t\}c6/3" }
Ky6+~> 6eo4#/+% 16.模板列
I61%H9; <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
;^ov~PPl <ITEMTEMPLATE>
>13/h]3 <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
l0#4Fma </ITEMTEMPLATE>
Hf_'32e3< </ASP:TEMPLATECOLUMN>
0etwz3NuW
-t>Z
9 <ASP:TEMPLATECOLUMN headertext="选中">
M8_ R <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
G"C;A`6 <ITEMTEMPLATE>
;NG1{]|Z <ASP:CHECKBOX id="chkExport" runat="server" />
Gl;f#} </ITEMTEMPLATE>
mt^`1ekoY <EDITITEMTEMPLATE>
\!4|tBKVY <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
;q&0,B </EDITITEMTEMPLATE>
P57GqT </ASP:TEMPLATECOLUMN>
EW9b*r7./ , QA9k$` 后台代码
ifHU|0_= protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
4y>(RrVG {
!l"tI#?6W% //改变列的选定,实现全选或全不选。
a7=YG6[ CheckBox chkExport ;
6Ty3e|do if( CheckAll.Checked)
QES^^PQe: {
%-r?=L foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
XLocg {
^k;mn-0 chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
1b+h>.gWar chkExport.Checked = true;
_'lmCj8L }
UEN56@eCNf }
RxMoD.kx else
`x*/UCy\ {
KcnjF^k foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
94YA2_f; {
o"4E+1qwM chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
L}b'+Wi@ chkExport.Checked = false;
"?[7#d]) }
-U:2H7 }
#@q1Ko!NZ }
1~L\s}|2d 5f{wJb2 17.数字格式化
FR(QFt!g w_!%'9m> 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
2$Wo&Q^_ <%#Container.DataItem("price","{0:¥#,##0.00}")%>
S%{lJYwXt UI_v3c3b int i=123456;
<d S5||| string s=i.ToString("###,###.00");
yeNvQG qZP:@r" 18.日期格式化
_1\poAy 01o [!n T 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
%VS 2M
#f c l9$g7 显示为: 2004-8-11 19:44:28
PMY~^S4O jVs(x
我只想要:2004-8-11 】
;xI0\a7 <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
_^-D _y s_S$7N`ocS 应该如何改?
G4O3h Y.` Yq{jEatY{/ 【格式化日期】
CMFC"e Se
<irpmRQr 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
xlk5Gob* ;8uHRcdQ 【日期的验证表达式】
A`g.[7 ]y}Zi/zh A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
:k\}Ik ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
8,H~4Ce3 oLd:3,p} B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
@H6%G>K, ^\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]))$
m$)YYpX 1NW>wo 【大小写转换】
>I|<^$/ HttpUtility.HtmlEncode(string);
shD+eHo$ HttpUtility.HtmlDecode(string)
PH[4y:^DN i:{:xKiC a 19.如何设定全局变量
IE|,~M2 fmBkB8 Global.asax中
>r~|1kQ. /K[]B]1NE Application_Start()事件中
^SgN(-QH |Cu1uwy 添加Application[属性名] = xxx;
K('
9l& A vWuyft* 就是你的全局变量
'Z y{mq\ ~RAzFLt6x 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
$Q=$?>4U pRb<wt7v HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
}&C dsCM>2 ?S8$5gA 【ASPNETMENU】点击菜单项弹出新窗口
A_aO}oBX fG3wc
l~ 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
L-j/R1fTvl <?xml version="1.0" encoding="GB2312"?>
y>4p~ <MenuData ImagesBaseURL="images/">
7WXiG0 <MenuGroup>
$G)&J2zL <MenuItem Label="内参信息" URL="Infomation.aspx" >
75<el.'H <MenuGroup ID="BBC">
NWeV>;lh9 <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
5%'o%`?i <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
Nz}|%.GP" ......
$4sAnu] 80 dSQ"y 最好将你的aspnetmenu升级到1.2版
w~ijD ^g $f9 ,##/ 21.读取DataGrid控件TextBox值
,=yOek} foreach(DataGrid dgi in yourDataGrid.Items)
W%=Zdm
rv {
"--/v. Cs TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
d4Ixuux<3 tb.Text....
S3nB:$_-; }
I.UjST C"k2<IE 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?
:J<Owh@
8 qn{ 〖思归〗
g~eJ
YS, <asp:TemplateColumn HeaderText="数量">
HhzkMJR8 <ItemTemplate>
r}Ltv?4 <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
F_K onkeyup="javascript:DoCal()"
{ 576+:* />
\m@]G3=] /FoUo <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
D\@e{.$MZ| </ItemTemplate>
)gL& </asp:TemplateColumn>
xAeZ7. Q& bOi};/f <asp:TemplateColumn HeaderText="单价">
H^ESAs6 <ItemTemplate>
',:3>{9 <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
XC
:;Rq'j onkeyup="javascript:DoCal()"
h<+PP]l= />
5`(((_Um+ Uf=vs( <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
-bv>iIC
Z83q- </ItemTemplate>
[c,|Lw4 </asp:TemplateColumn>
y>DfM5> l~`txe <asp:TemplateColumn HeaderText="金额">
A9NOeE <ItemTemplate>
+ 8MW$ m$ <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
x8\E~6`, </ItemTemplate>
d/"gq}NT </asp:TemplateColumn><script language="javascript">
R>Z,TQU function DoCal()
+s#S{b {
45]Ym{] var e = event.srcElement;
7f.4/x^ var row = e.parentNode.parentNode;
?j &V:kF var txts = row.all.tags("INPUT");
9:bh3@r/ if (!txts.length || txts.length < 3)
dt`9RB$ return;
tI/mE[W <1;,B%_^ var q = txts[txts.length-3].value;
MzBfHt'Rk var p = txts[txts.length-2].value;
0IoXDx `I]1l MJ)o if (isNaN(q) || isNaN(p))
hY\Eh. return;
[Q2S3szbt6 7j9D;_(.^$ q = parseInt(q);
o=mq$Z:} p = parseFloat(p);
0X] ekq
T4%i`<i txts[txts.length-1].value = (q * p).toFixed(2);
WZ-4^WM=! }
r[C3u[ </script>
D#vn {^c8O tJ(c<:zD @d8&3@{R^ -D.BJ( EM>c%BH<N 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。
eONeWY9 page_load
.y/NudD page.smartNavigation=true
V0SW 5
m =)"NE> 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 ?
PCV58n3 private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
8GF[)z&|P: {
3Hb .ZLE# for(int i=0;i<e.Item.Cells.Count-1;i++)
pIU#c&%<9 if(e.Item.ItemType==ListItemType.EditType)
Zztt)/6* {
pq/FLYiv e.Item.Cells.Attributes.Add("Width", "80px")
_qO;{%r }
orcZyYU }
/-G qG)PX rR),~ @]sL 26.对话框
eR#gG^o8 private static string ScriptBegin = "<script language=\"JavaScript\">";
1 $KLMW private static string ScriptEnd = "</script>";
0-;DN:> Lz#$_Am'H public static void ConfirmMessageBox(string PageTarget,string Content)
|k['wqn" {
YoSo0fQA string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
!Vp,YN+yN X:xC>4]gG' ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
D7gX,e cEh0Vh-] Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
_D7HQ ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
H3UX{|[ //Response.Write(strScript);
o2 T/IJP }
34++Rr [G Mc#O+'](f 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
vV:MS O'r R:pBbA7E 1.1 取当前年月日时分秒
qH{8n` currentTime=System.DateTime.Now;
-Y
6.?z Nj3^"}V 1.2 取当前年
s)o,Fi int 年= DateTime.Now.Year;
%%-U. R%]9y]HQ 1.3 取当前月
7YQK@lS int 月= DateTime.Now.Month;
!~w6"%2+7 ?@g;[310` 1.4 取当前日
#+k.b_LS int 日= DateTime.Now.Day;
&}L36|A: M'>D[5;N~ 1.5 取当前时
\M'bY: int 时= DateTime.Now.Hour;
m_r@t* x[.z"$T@ 1.6 取当前分
r[UyI3(i^ int 分= DateTime.Now.Minute;
+ hyWo]nW0 yp^[]Mz= 1.7 取当前秒
2RSHBo int 秒= DateTime.Now.Second;
1"4nmw} P"~qio- 1.8 取当前毫秒
()3x%3 int 毫秒= DateTime.Now.Millisecond;
&"r==A? xi1N?
pP 28.自定义分页代码:
-!bLMLIg H>X\C;X[
先定义变量 :
Jegx[*O>b public static int pageCount; //总页面数
r:8]\RU public static int curPageIndex=1; //当前页面
o?Tp=Ge jV|$?
Rcl% 下一页:
|/T<]+X; if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
$@:>7Y" {
28UL DataGrid1.CurrentPageIndex += 1;
xP5mL3j curPageIndex+=1;
TW-zh~|F }
J?n)FgxS 1
">d|oC bind(); // DataGrid1数据绑定函数
:UJUh/U 1$3XKw' 上一页:
b/n8UxA if(DataGrid1.CurrentPageIndex >0)
~d#;r5> {
$jm>tW&; DataGrid1.CurrentPageIndex += 1;
(&Tb,H)= curPageIndex-=1;
$E9daUt8"J }
-Y jv&5 hiK[!9r bind(); // DataGrid1数据绑定函数
(61twutC !ovZ>,1 直接页面跳转:
1R+ )T'in int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
ixJ20A7 +v[$lh+ if(a<DataGrid1.PageCount)
Oz9Mqcx {
Y4~wNs6 this.DataGrid1.CurrentPageIndex=a;
!>kv.`|7~ }
Zh~Lm zQ6
-2 A bind();
Y5A~iGp8E VqO<+~M,E 29.DataGrid使用:
A*26' +VpE-X=T 添加删除确认:
)r6SGlE[Y private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{, *Y {
4k&O-70y4^ foreach(DataGridItem di in this.DataGrid1.Items)
!Bd*
L~D {
CXP $bt} if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
Q3'B$,3O^ {
M;TfD ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
"JUQ)> !? }
]x(2}h^S }
z:Zn.e*$b }
* /Ry6Yu
3NxaOO` 样式交替:
!wR{Y[Yu ListItemType itemType = e.Item.ItemType;
.L(j@I t 18w^7!F?~u if (itemType == ListItemType.Item )
tU2t oV {
8|-mzb& e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
,,H$>r_; e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
I }W-5% }
KutgW#+40 else if( itemType == ListItemType.AlternatingItem)
:
$52Ds!i {
I9G*iu=U e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
/&!d e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
ZEyGqCf3 }
+@7x45;D &F*QYz[ 添加一个编号列:
1PTu3o&3 DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
~
GT\RAj[ DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
qxcBj Y /ac}q for(int i=0;i<dt.Rows.Count;i++)
7pI\`*7b {
F+y`4>x dt.Rows["number"]=(i+1).ToString();
-x%`Wv@L }
\A\yuJ= (R*jt,x DataGrid1.DataSource=dt;
zQj%ds: DataGrid1.DataBind();
{7~ $$AR( IweK!,:>dN DataGrid1中添加一个CheckBox,页面中添加一个全选框
$Ex 9 private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
zf;[nz {
ONe!'a0 foreach(DataGridItem thisitem in DataGrid1.Items)
`0G.Y {
[Fj#7VZK ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
pA,EUh|H }
uj1E*
98m }
e}4^N1'd/ .5CELtR 将当前页面中DataGrid1显示的数据全部删除
#M9D"
<pn} foreach(DataGridItem thisitem in DataGrid1.Items)
#m$% S%s {
K,,@', if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
,JBw$C {
Am?Hkh2 string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
#IrP"j^ Del (strloginid); //删除函数
WT!\X["FI$ }
|%cO"d^ri }
O2/w:zOg' aE cg_es 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)
g*c\'~f; /uz5V/i0 在Application_Start中添加以下代码:
8\.1m9&r>o Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
(*WZsfk>/< AppSettings["ConnStr"].ToString();
NlEWm8u _5S$mc8K0 31. 变量.ToString()
JTB~nd> +e4<z%1 字符型转换 转为字符串
CU`Oc>;*T 12345.ToString("n"); //生成 12,345.00
u`Qcw|R+ 12345.ToString("C"); //生成 ¥12,345.00
Vh2/Ls5 12345.ToString("e"); //生成 1.234500e+004
yz$1qEII`q 12345.ToString("f4"); //生成 12345.0000
HN~4-6[q 12345.ToString("x"); //生成 3039 (16进制)
tP(bRQ> 12345.ToString("p"); //生成 1,234,500.00%
ee0>B86tE 'U{:
zBh 32、变量.Substring(参数1,参数2);
3jeV4| v4##(~Tu 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
n_&)VF#n( %s : 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
A-Pwi.$ <SCRIPT language="javascript">
2Yd~v| <!--
O*/-I
pM function gook(pws)
GJt9hDM$0 {
5a|m}2IX frm.submit();
8lGgp&ey }
(Dh;=xG //-->
S!!\!w>N 2/4x]i
H* </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
.'mC3E+$ <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
14YV#o: <tr>
}ZVv <td>
UVmyOC[Y{ <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
d?y\~< <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
d#:J\2V"R <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
SWO!E Afhx`J1KO <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
:XZom+>2n <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
{#M{~ >37}JUG </td>
x Bw.M{ 'yRv~BA </tr>
mf_'|
WDs m9w
;a </form>
I%C:d#p Bo\v-97 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。
?F!J@Xn5 5N+(Gv[`" 下面是获取用户输入的登陆信息的代码:
oqHm:u^2 string name;
M &EJFpc* name=Request.QueryString["EmailName"];
HF[%/Tu "57G@NC{n try
n >PM_W {
poFjhq
/#( int a=name.IndexOf("@",0,name.Length);
PxD}j
2Kd f_user.Value=name.Substring(0,a);
7.rZ%1N f_domain.Value=name.Substring(a+1,name.Length-(a+1));
J3S+| x h~ f_pass.Value=Request.QueryString["Psw"];
-?` l<y( }
N_[ Q.HD" w/W?/1P>q catch
~EkGG
. {
9+Bq00-Z$ Script.Alert("错误的邮箱!");
Prx s2 i 8 Server.Transfer("index.aspx");
kR?n%`&k }