1. 打开新的窗口并传送参数:
bq0zxg% ml
}{|Yz 传送参数:
z9Rp`z&`E response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
((M>s&\y*Y p>8D;#HmL 接收参数:
0{-q#/ string a = Request.QueryString("id");
NyNXP_8 string b = Request.QueryString("id1");
' %o#q6O :&."ttf= 2.为按钮添加对话框
8[{ Vu0R Button1.Attributes.Add("onclick","return confirm(’确认?’)");
@GW#&\yM button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
g}(L;fy>7 !%%6dB@%t 3.删除表格选定记录
Se =`N int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
*VxgARIL string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
i?^L/b`H =U?dbSf1* 4.删除表格记录警告
j/?kL{B private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
X$W~mQma6 {
fVpMx4&F
switch(e.Item.ItemType)
u;2[AQ. {
ge8ZsaiU case ListItemType.Item :
amY!qg0P* case ListItemType.AlternatingItem :
_E.>`Q case ListItemType.EditItem:
f9{Rb/l!BQ TableCell myTableCell;
\z(gqkc 6 myTableCell = e.Item.Cells[14];
?^\|-Gr LinkButton myDeleteButton ;
Z"fJ`-- myDeleteButton = (LinkButton)myTableCell.Controls[0];
.U]-j\ myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
\LexR.Di break;
9CD_os\h default:
H$UcF1k< break;
~2-1 j }
*VT/ 1/J=uH }
9~[Y-cpoi I9ep`X6Y 5.点击表格行链接另一页
<h *4Q private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
Q>i^s@0 {
['iPl/v0 //点击表格打开
Q hO!Ma] if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
YT(AUS5n e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
BLD gt~h# }
A6(/;+n DEZveQr= 双击表格连接到另一页
9q~s}='" +ksVtG, 在itemDataBind事件中
$yNS
pNmT0 if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
tK\~A,= {
E hMNap}5" string OrderItemID =e.item.cells[1].Text;
'/s)%bc ...
Jdj4\ju e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
[Z$[rOF }
wz%NbLy- *gWwALGo5 双击表格打开新一页
$-sHWYZ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
@E|}Y {
oXF.1f/h string OrderItemID =e.item.cells[1].Text;
#QMz<P/Gl6 ...
)\$|X}uny& e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
97!;.f- }
+52{-a,> g3y+&Y_ ★特别注意:【?id=】 处不能为 【?id =】
oNF6<A(@$ 6.表格超连接列传递参数
pFjK}JOF <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
*J`O"a <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
ZPYS$Ydy 9x=Y^',5 7.表格点击改变颜色
6T`i/". if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
bOY |H~ {
qlPT Ll e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
<wD-qT W this.style.color=’buttontext’;this.style.cursor=’default’;");
[/8%3 }
nAdf=D'P $f7l34Sf3 写在DataGrid的_ItemDataBound里
u]UOSf n if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
g[4WzDF* {
X=&KayD e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
13x p_j this.style.color=’buttontext’;this.style.cursor=’default’;");
`VguQl_,gA e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
Otn1wBI }
=@~Y12o?% ^^ixa1H< ' S/gmn 8.关于日期格式
fe_5LC" 3%b6{ie/= 日期格式设定
GnJt0 { DataFormatString="{0:yyyy-MM-dd}"
G]&qx`TBK }Jj}%XxKs 我觉得应该在itembound事件中
nAlQ7' e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
+mT_QsLEv |+D!=
:x 9.获取错误信息并到指定页面
O?#7N[7 b@hqz!)l` 不要使用Response.Redirect,而应该使用Server.Transfer
'!B&:X) 5\VWC I e.g
c@L< Z` u // in global.asax
~((O8@}J protected void Application_Error(Object sender, EventArgs e) {
F*ylnB3z if (Server.GetLastError() is HttpUnhandledException)
DkDmE Server.Transfer("MyErrorPage.aspx");
l+0oS'`V*L BnF^u5kv % //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
&wDs6xq }
o-B$J? X|]AT9W 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
>Cq<@$I2EB mj7#&r,1l 10.清空Cookie
5*u+q2\F Cookie.Expires=[DateTime];
=>~:<X., Response.Cookies("UserName").Expires = 0
E|shs=I 8P\Zo8}v 11.自定义异常处理
`C'H.g\>2Q //自定义异常处理类
j8:\%| using System;
J\=*#*rJ1 using System.Diagnostics;
kvu)y` ((%?`y namespace MyAppException
P?P#RhvA1 {
)MT}+ai /// <summary>
@gK?\URoT /// 从系统异常类ApplicationException继承的应用程序异常处理类。
mgU<htMr1 /// 自动将异常内容记录到Windows NT/2000的应用程序日志
5L}/&^E#p /// </summary>
W=+ Y|R! public class AppException:System.ApplicationException
m+z&Q {
@d1Q"9}B public AppException()
+k R4E23: {
":N9(}9 if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
9QJyZ }
&q*Aj17 42ge3> public AppException(string message)
,64-1! {
w7&A0M LogEvent(message);
k$:|-_(w }
C\hM =% TIg3`Fon public AppException(string message,Exception innerException)
B^}yo65I {
{R{=+2K!|k LogEvent(message);
a(ZcmYzXU if (innerException != null)
|CbikE}kL {
@BMx!r5kn LogEvent(innerException.Message);
lq7E4r }
b"
[|:F>P }
#fM`}Ij.A P16~Qj //日志记录类
VuZr:-K/ using System;
%E;'ln4h&, using System.Configuration;
_7y[B&g[r using System.Diagnostics;
#~=RyH using System.IO;
\a3+rNdj using System.Text;
j.=
1rwPt using System.Threading;
<9b&<K: es0hm2HT3 namespace MyEventLog
V>3X\)qu {
wVtwx0|1 /// <summary>
ChQxa /// 事件日志记录类,提供事件日志记录支持
Lu%b9Jk /// <remarks>
G=bCNn< /// 定义了4个日志记录方法 (error, warning, info, trace)
[()koU#w. /// </remarks>
7F.4Ga; /// </summary>
.*Qx\, public class ApplicationLog
>^{yF~( {
j_j]"ew) /// <summary>
j B{8u&kz) /// 将错误信息记录到Win2000/NT事件日志中
>=w)x,0yX /// <param name="message">需要记录的文本信息</param>
9+!hg'9Qn /// </summary>
dlnX_+((KC public static void WriteError(String message)
^xk'Z {
K)iF>y|{*q WriteLog(TraceLevel.Error, message);
WTiD[u }
a?oI>8* jSaU?ac /// <summary>
;qV>L=a /// 将警告信息记录到Win2000/NT事件日志中
iK;XZZ( /// <param name="message">需要记录的文本信息</param>
w&.aQGR# /// </summary>
M
D#jj3y public static void WriteWarning(String message)
AQ^u {
a$fnh3j[ WriteLog(TraceLevel.Warning, message);
#4;wjcGWw }
q ZZK#,Qb )Q JUUn# /// <summary>
(**oRwr% /// 将提示信息记录到Win2000/NT事件日志中
|k9
C/ /// <param name="message">需要记录的文本信息</param>
?gXp*>Kg[ /// </summary>
DVeE1Q public static void WriteInfo(String message)
A]3k4DLYS {
\GU<43J2uo WriteLog(TraceLevel.Info, message);
iU:cW=W|M\ }
!bP@n /// <summary>
y>ktcuML /// 将跟踪信息记录到Win2000/NT事件日志中
)O6>*wq /// <param name="message">需要记录的文本信息</param>
1xx}~|F?| /// </summary>
]I6 J7A[ public static void WriteTrace(String message)
0tJZ4(0 {
_t ycgq# WriteLog(TraceLevel.Verbose, message);
@PIp*[7oC }
8xMX c+GG\:gM /// <summary>
Ni7nq8B< /// 格式化记录到事件日志的文本信息格式
-I%5$`z /// <param name="ex">需要格式化的异常对象</param>
rSNi@; /// <param name="catchInfo">异常信息标题字符串.</param>
c[s4EUG /// <retvalue>
(w zQ2Dk /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
?r!o~|9| /// </retvalue>
[<TrS/,)> /// </summary>
"EJ~QCW*Yh public static String FormatException(Exception ex, String catchInfo)
-ze J#B)C {
R^e'}+Z StringBuilder strBuilder = new StringBuilder();
H6gSO(U if (catchInfo != String.Empty)
&,)&%Sg[ {
IvNT6]6 P strBuilder.Append(catchInfo).Append("\r\n");
iJ|uvPCE }
3r1*m
+ strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
,tRj4mx return strBuilder.ToString();
fd9k?,zM }
L\iFNT}g` [KQ6Ta. /// <summary>
rW#T
vUn /// 实际事件日志写入方法
lr$zHI7_` /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
N)Z?Z+}h /// <param name="messageText">要记录的文本.</param>
L4l!96]a /// </summary>
#|``ca54B private static void WriteLog(TraceLevel level, String messageText)
/wlEe>i {
Ht&YC<X try
-%4,@
x` {
@[v~y"tE} EventLogEntryType LogEntryType;
-DAlRz#d, switch (level)
9Gz=lc[!7 {
=?`c=z3~i$ case TraceLevel.Error:
lUMdrt0@z LogEntryType = EventLogEntryType.Error;
q75s#[<ap break;
Yoll?_k+ case TraceLevel.Warning:
x$(f7?s] 1 LogEntryType = EventLogEntryType.Warning;
HtYwEj I break;
e8b:)"R case TraceLevel.Info:
6d~'$<5on LogEntryType = EventLogEntryType.Information;
n._-!
WI break;
N4HqLh23H case TraceLevel.Verbose:
@|T'0_' LogEntryType = EventLogEntryType.SuccessAudit;
Z$? # break;
h@wgd~X9 default:
HkVB80hv LogEntryType = EventLogEntryType.SuccessAudit;
l9H!au= break;
7cMv/g^h@ }
uXl3k:_n An/|+r\ EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
>c}u>]D //写入事件日志
AkiDL=;w eventLog.WriteEntry(messageText, LogEntryType);
;xn0;V'= p{dj~ &v }
/z $u]X catch {} //忽略任何异常
,"79P/C }
l}M!8:UzU } //class ApplicationLog
1yY0dOoLG) }
Srd4))2/0 is@?VklnB 12.Panel 横向滚动,纵向自动扩展
5Jnlz@P9 <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
E&:,oG2M <ZR9GlIr 13.回车转换成Tab
MnW+25=N <script language="javascript" for="document" event="onkeydown">
{BU;$ if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
B#1;r-^P< event.keyCode=9;
IEvdV6{K </script>
8*a&Jl `~q <N onkeydown="if(event.keyCode==13) event.keyCode=9"
Yu2Bkq+ L9#g)tf
8T 14.DataGrid超级连接列
jZrq{Z< DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
~WV"SaA)*U ]')RMg zM* 15.DataGrid行随鼠标变色
[z9Z5sLO private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
o*hF<D$Y {
FHI ;)wn= if (e.Item.ItemType!=ListItemType.Header)
ENY+^7 {
BTrn0 e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
,UE83j8D^ e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
%D "I }
koi^l`B$ }
^5
Tqy(M 63 B?. 16.模板列
&b& , <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
E8&TO~"a]e <ITEMTEMPLATE>
U~7c+}:c <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
ufT`"i </ITEMTEMPLATE>
IIx#2r </ASP:TEMPLATECOLUMN>
uY'HT|@:{ |$_sX9\`?| <ASP:TEMPLATECOLUMN headertext="选中">
@U}1EC{A <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
-z(+/ /K:# <ITEMTEMPLATE>
)w%!{hn <ASP:CHECKBOX id="chkExport" runat="server" />
;sFF+^~L </ITEMTEMPLATE>
S|+o-[e8O <EDITITEMTEMPLATE>
4H]L~^CD <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
$PHvA6D </EDITITEMTEMPLATE>
.#pU=v#/[ </ASP:TEMPLATECOLUMN>
UW
EV^ &"x t\ewHZG" 后台代码
Owk |@6! protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
=odFmF {
)53y
AyP //改变列的选定,实现全选或全不选。
du^J2m{f CheckBox chkExport ;
*CHX if( CheckAll.Checked)
_:27]K: {
x-3\Ls[I foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
!%0 *z {
o{[YA}xc chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
IPo?:1x]s chkExport.Checked = true;
;4~hB }
W5MTD]J }
Q]>.b%s[ else
q5:N2Jmo?z {
~&bq0( foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
12LL48bi {
Z#\P&\`1z chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
D}/vLw :v chkExport.Checked = false;
a:6m7U)P#5 }
Tnm.A? }
M =r)I~ }
5XBH$&Td TRq6NB 17.数字格式化
yz8jw:d^- ')3
bl3: 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
gB'6`' <%#Container.DataItem("price","{0:¥#,##0.00}")%>
Q'0d~6n&{ G'A R`"F int i=123456;
sON|w86B string s=i.ToString("###,###.00");
b SU~XGPB =C.$
UX 18.日期格式化
7Jho}5J ~Jz6O U*z 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
[hj6N*4y S^ \Vgi( 显示为: 2004-8-11 19:44:28
/t"3!Z?BOv _a T5jR= 我只想要:2004-8-11 】
E~oOKQ5W <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
Y0-n\| @I!0-OjL 应该如何改?
)Z9>$V$j d-dEQKI?; 【格式化日期】
N<injx e**qF=HCw 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
[HZv8HU| |#
2.Q:& 【日期的验证表达式】
Q$Q([Au ,DkNLE A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
6 ~w@PRy ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
N//KPh ,nDaqQ-C!! B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
yO~Ig
`w ^\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]))$
O@C@eW# E=!\z%4 【大小写转换】
.OY`Z)SS% HttpUtility.HtmlEncode(string);
@6T/Tdz HttpUtility.HtmlDecode(string)
g7W" >V}#[ /n 19.如何设定全局变量
V33T+P~j FQ5U$x.[P Global.asax中
wDe& 1(T^ A2jUmK.& Application_Start()事件中
v
z '&%( DlMW(4( 添加Application[属性名] = xxx;
kL"2=7m; %Y*Ndt 4 就是你的全局变量
^,T(mKS
}?Ai87-{ 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
j HJ`,# L0WN\|D HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
b!5~7Ub.No XuM'_FN`A< 【ASPNETMENU】点击菜单项弹出新窗口
2!=f hN Gu\q%'I 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
9m~p0 ILh <?xml version="1.0" encoding="GB2312"?>
*wB1,U{ <MenuData ImagesBaseURL="images/">
4u})+2W <MenuGroup>
n8ZZ#}Nhg <MenuItem Label="内参信息" URL="Infomation.aspx" >
q'Tf,a <MenuGroup ID="BBC">
ExL0?FemWV <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
L>4"( <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
-4{<=y?"a ......
LuvY<~u (V67`Z ) 最好将你的aspnetmenu升级到1.2版
.jjG(L H]Z$OpI 21.读取DataGrid控件TextBox值
tG22#F` foreach(DataGrid dgi in yourDataGrid.Items)
[%1CRk {
%2V? ,zY@ TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
K^<BW(s tb.Text....
+}os&[S }
UhQj
Qaa~ 0[?Xxk}s0 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?
?QdWrE_
PP33i@G 〖思归〗
@YTaSz$L <asp:TemplateColumn HeaderText="数量">
9 X`Sm}i <ItemTemplate>
a'yK~;+_9 <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
SbrecZ onkeyup="javascript:DoCal()"
)W
_v:?A9 />
x\G'kEd o9yJf#-En <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
dn$!& </ItemTemplate>
w-L=LWL\ </asp:TemplateColumn>
A0 C,tVd 3eAX.z`D <asp:TemplateColumn HeaderText="单价">
}Sh?S]]` <ItemTemplate>
mLLDE;7|} <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
V#gK$uv onkeyup="javascript:DoCal()"
C7ScS"~ />
84zSK)=Y B!L{ <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
rlSeu5X6 ~
=2PU$u </ItemTemplate>
x@;m8z0 </asp:TemplateColumn>
w;:*P ,G?WAOy, <asp:TemplateColumn HeaderText="金额">
h_,i&d@( <ItemTemplate>
j@3Q;F0ba <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
bI9~jWgGp </ItemTemplate>
~H<6gN<j(. </asp:TemplateColumn><script language="javascript">
yg=q;Z>[~ function DoCal()
~[nSXnPO {
H;k~oIsk var e = event.srcElement;
#rQ2gx4 var row = e.parentNode.parentNode;
2E)-M9ds var txts = row.all.tags("INPUT");
,Np0wg0 if (!txts.length || txts.length < 3)
k|PN0&J return;
fW1CFRHH :vQrOn18p var q = txts[txts.length-3].value;
:zke %Yx var p = txts[txts.length-2].value;
5 ,B_u%bb i^Y+?Sx if (isNaN(q) || isNaN(p))
CXx*_@}MU return;
A>;bHf@ '"/=f\)u q = parseInt(q);
!6O(-S2A p = parseFloat(p);
.glA
gt ;)z:fToh txts[txts.length-1].value = (q * p).toFixed(2);
bSi%2Onj }
VSI9U3t3w </script>
Q%f^)HZGR h#
o6K# g63(E,;;J XZ]uUP -4IE]'## 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。
+RM SA^ page_load
i0kak`x0 page.smartNavigation=true
hPkWCoQpq ^Hnb}L 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 ?
Ru!iR#s)! private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
'ud{m[| {
x$.^"l-vX for(int i=0;i<e.Item.Cells.Count-1;i++)
5o'FS{6U if(e.Item.ItemType==ListItemType.EditType)
U!?_W=? {
dI@(<R e.Item.Cells.Attributes.Add("Width", "80px")
6"5A%{J }
6"O+w=5B }
qHplJ " 2M#Q.F 26.对话框
Ls$D$/:q? private static string ScriptBegin = "<script language=\"JavaScript\">";
N06OvU2>xU private static string ScriptEnd = "</script>";
%G/hD ^?7-r6 public static void ConfirmMessageBox(string PageTarget,string Content)
+-U- D?- {
Rn(ec string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
SpLzm A rv^@, 8vq ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
n&;85IF1 TA`1U;c{n Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
~"&|W'he[ ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
vkx7paY_ //Response.Write(strScript);
n,V[eW#m'L }
c"n\cNP< M4oy 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
r4XK{KHn %Ycy{` 1.1 取当前年月日时分秒
qn<|-hA* currentTime=System.DateTime.Now;
R'bTN|Cq +\c5]` 1.2 取当前年
^T;*M_ int 年= DateTime.Now.Year;
?FeYN+qR 7uS~MW 1.3 取当前月
0w\zLU int 月= DateTime.Now.Month;
7Oa#c<2] Jr
,;>
1.4 取当前日
D3Ig>gKo?m int 日= DateTime.Now.Day;
"$Z= %.3Q Vod\a5c 1.5 取当前时
qo90t{|c int 时= DateTime.Now.Hour;
Ustv{:7v <ro7vPKNa 1.6 取当前分
uD$u2 int 分= DateTime.Now.Minute;
hk(ZM#Bh <EB+1GFuI 1.7 取当前秒
B:;pvW] int 秒= DateTime.Now.Second;
@fZ,.2ar |mdVdD~go 1.8 取当前毫秒
(
iBl int 毫秒= DateTime.Now.Millisecond;
3s,g* .779pT!,M 28.自定义分页代码:
?cBwPetp DnMwUykF>0 先定义变量 :
av}k)ZT_ public static int pageCount; //总页面数
eueH)Xkf public static int curPageIndex=1; //当前页面
G7`ko1- \Xt7`I< 下一页:
!N\@'F! if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
'8RsN-w {
Bw)/DM] DataGrid1.CurrentPageIndex += 1;
F#,90F' curPageIndex+=1;
2\A$6N;_ }
UUYSFa% g|DF[ bind(); // DataGrid1数据绑定函数
N=T<_`$5 RE7?KR> 上一页:
t9k zw*U9 if(DataGrid1.CurrentPageIndex >0)
$k@O`xD,q {
??-[eB. DataGrid1.CurrentPageIndex += 1;
25nt14Y0u curPageIndex-=1;
<y2U3;t }
(^8Y|:Tz o]J{{M'E bind(); // DataGrid1数据绑定函数
P_dCR u<7/0;D#+ 直接页面跳转:
~9,,~db int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
#l\=}#\1Wb =t#llgi~ if(a<DataGrid1.PageCount)
~9a<0Mc? {
?/wm (uL this.DataGrid1.CurrentPageIndex=a;
)0.kv2o. }
T6y\| 'Vzp2 bind();
EA@.,7F i^X]j 29.DataGrid使用:
xBThq?N? zsEc( 添加删除确认:
{k>&?Vd! private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
)#0O>F~ {
>Eyt17_H"n foreach(DataGridItem di in this.DataGrid1.Items)
^b4 9 {
)Ys x}vS Z if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
vjbASFF0= {
1E[J%Rh\l ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
,uSMQS-O'4 }
oA7tEu }
n$MO4s8) }
(Z+.45{- XO>KZV7) 样式交替:
6y-@iJ*ld; ListItemType itemType = e.Item.ItemType;
4M=]wR; rT=rrvV3g if (itemType == ListItemType.Item )
{g'(~ qv {
c?(4t67| e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
vONasD9At e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
p,EQ#Ik }
9%o32eo,3 else if( itemType == ListItemType.AlternatingItem)
+xh`Q=A {
aq>kTaz e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
& TCkpS e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
zq3\}9 }
}kw#7m54 @+&LYy72 添加一个编号列:
x77*c._3v DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
WA<v9#m DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
\#8D>i?m AVsDt2A for(int i=0;i<dt.Rows.Count;i++)
pQyK={7?` {
2jA {SY- dt.Rows["number"]=(i+1).ToString();
5c@,bIl * }
AwCcK6N1 q\9JgD) DataGrid1.DataSource=dt;
F#3Q_G^/ DataGrid1.DataBind();
j"8ZM{aO SpIv#? DataGrid1中添加一个CheckBox,页面中添加一个全选框
[$ubNk;!z private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
n QF(vTDN {
%e8@*~h@ foreach(DataGridItem thisitem in DataGrid1.Items)
]vB$~3|| {
<.%4 !
}f8 ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
Ij7p'a }
/`Ug9,* }
WqR&&gz PF0_8,@U 将当前页面中DataGrid1显示的数据全部删除
'NbHa! foreach(DataGridItem thisitem in DataGrid1.Items)
G~]Uk*M
q {
>1X|^ if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
:;v~%e{k {
[@_Jj3`4 string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
cRC6 s8 Del (strloginid); //删除函数
+X\FBvP& }
c^5~QGuQ }
V%t.l DcS+_>a\{l 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)
{Ea
b
j xf'V{9* 在Application_Start中添加以下代码:
bS{bkE> Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
W Tcw4 AppSettings["ConnStr"].ToString();
;_XFo&@ nd`1m[7MNu 31. 变量.ToString()
FBG4pb9=~ B5`EoZ 字符型转换 转为字符串
`C,n0'PL. 12345.ToString("n"); //生成 12,345.00
x[|}.Ew 12345.ToString("C"); //生成 ¥12,345.00
>^O7 12345.ToString("e"); //生成 1.234500e+004
\Zb;'eDv 12345.ToString("f4"); //生成 12345.0000
ImA @}: 12345.ToString("x"); //生成 3039 (16进制)
pj8=wc h 12345.ToString("p"); //生成 1,234,500.00%
iR HQ:Y! b;L\EB 32、变量.Substring(参数1,参数2);
~kV/!= H[T?\Lq 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);
d.aS{;pse s `e{}\ 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)
0RzEY!9g+ <SCRIPT language="javascript">
M^A48u{," <!--
.zf~.R;> function gook(pws)
gZVc 5u< {
&L3M] frm.submit();
]|#+zx|/D }
{aZ0; //-->
RCJ|P~* _OYasJUMG </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
2bz2KB5> <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
v6|RJt? <tr>
g%o(+d <td>
OUE(I3_ <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
REQ\>UO_ <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
iG$!6;w< <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
XMZ,Y7 {.`vs;U <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
@?ebuj5{e <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
P|`8}|}a zg>zUe
bA </td>
"2!&5s,1p C-xr"]#] </tr>
@b\$ yB@z `&qL(66 </form>
$yP*jO4i &{5,:%PXw 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。
VCYwzB ,};&tR 下面是获取用户输入的登陆信息的代码:
Y!xF;a string name;
Fk7?xc name=Request.QueryString["EmailName"];
"> ypIR< $L`d&$Vh try
'JtBZFq {
>\R+9p:o int a=name.IndexOf("@",0,name.Length);
TT%M'5& f_user.Value=name.Substring(0,a);
_IMW{ f_domain.Value=name.Substring(a+1,name.Length-(a+1));
e
v}S+!|U f_pass.Value=Request.QueryString["Psw"];
+ SzU }
t}a: p6D] kb%;=t2 catch
A.F%Ycq {
a9e>iU Script.Alert("错误的邮箱!");
{'flJ5] Server.Transfer("index.aspx");
je\Ph5 " }