1. 打开新的窗口并传送参数:
HBMhtfWW sNLs\4v 传送参数:
aXoVy&x= response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
jJ5W>Q1mK$ K|Di1)7=/ 接收参数:
lk( }- string a = Request.QueryString("id");
`-p:vq` string b = Request.QueryString("id1");
OEkN(wF LS917ci- 2.为按钮添加对话框
^G.B+dG@`x Button1.Attributes.Add("onclick","return confirm(’确认?’)");
apu4DAy&8 button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
o/+13C SF>c\eTtx 3.删除表格选定记录
c5u@pvSP int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
cj1cZ- string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
ekWePL;rR2 f>N!wgo[ 4.删除表格记录警告
CL+}|7O( private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
#N`~xZ|$ {
=_:et0 switch(e.Item.ItemType)
d%o&+l# {
IyWI5Q"t case ListItemType.Item :
tV{4"Ij9[ case ListItemType.AlternatingItem :
6BCf:mqP case ListItemType.EditItem:
OR;uqV@ TableCell myTableCell;
o}* hY"& myTableCell = e.Item.Cells[14];
MpF$xzh LinkButton myDeleteButton ;
;JayoJ myDeleteButton = (LinkButton)myTableCell.Controls[0];
p{j.KI s7 myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
[m|YWT= break;
~4 `5tb default:
Np"exFqN k break;
j'HZ\_ }
70eb]\% R~S;sJ& c }
Z\k&gio5C^ \Hn>oonph 5.点击表格行链接另一页
\Ol kM< private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
_tYx~J2.Q {
;N0~;I //点击表格打开
yge,8i)c if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{o.FlX e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
U
15H2-` }
4#:W.]U8 ;{U@qQD7 双击表格连接到另一页
]3X@_NYj y9>ZwYN 在itemDataBind事件中
~2gG(1%At9 if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
%3ICI {
~Hr}] string OrderItemID =e.item.cells[1].Text;
]hFW73FV ...
&3n~%$#N e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
HBu[gh;b }
''0fF_P Wwr;-Qa}g 双击表格打开新一页
w tiny,6 if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
i:OK8Q{VI {
6jC`8l: string OrderItemID =e.item.cells[1].Text;
Bg|5KOnd ...
4X+ifZO e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
Y07ZB'K }
'.81zpff 5'X ]k@m_ ★特别注意:【?id=】 处不能为 【?id =】
@T'i/}nl 6.表格超连接列传递参数
kNobl <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
(q(~de <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
*%S"eWb -)RH5WG S 7.表格点击改变颜色
wfq7ob4^ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
H\0~#(z?. {
f7X6fr< e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
K otrX this.style.color=’buttontext’;this.style.cursor=’default’;");
N<IT w/@^ }
$Z\.-QE\ FXi{87F2 写在DataGrid的_ItemDataBound里
Jc|6& if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
]]oI#*c {
7aQc=^vaZ e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
+h r@#n4A this.style.color=’buttontext’;this.style.cursor=’default’;");
no9;<]4 e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
Ljx(\Cm }
-6n K<e` ,I%g|'2 +i@y@<l:+ 8.关于日期格式
<cqbUL A*}.EClH 日期格式设定
Dk(1}%0U/ DataFormatString="{0:yyyy-MM-dd}"
>JC {ZI)nQ{ 我觉得应该在itembound事件中
^]W<X"H+Z e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
y&?6FY SBIj<Yy] 9.获取错误信息并到指定页面
Zw ^kmSL" }Du}c3 不要使用Response.Redirect,而应该使用Server.Transfer
gT#&"aP5S \ytJ=0r e.g
ZI 3Nq // in global.asax
#nK>Z[ protected void Application_Error(Object sender, EventArgs e) {
X0haj~o[ if (Server.GetLastError() is HttpUnhandledException)
+ EGD.S{ Server.Transfer("MyErrorPage.aspx");
w(/aiV /p+>NZ"b //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
PGLplXb#[S }
~s]iy9i RH O( ?8"_ Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
2E)wpgUc?e dVi!Q@y+ 10.清空Cookie
n1VaLD Cookie.Expires=[DateTime];
CB/D4j; Response.Cookies("UserName").Expires = 0
9Bw|(J N#DYJ-~* 11.自定义异常处理
&'
Ne!o8 //自定义异常处理类
9&_<f}ou using System;
C0}IE,] using System.Diagnostics;
bdF.qO9
-/ g B|J namespace MyAppException
CJJzCVj {
:QB<?HaS' /// <summary>
17G'jiYH /// 从系统异常类ApplicationException继承的应用程序异常处理类。
8\5 T3AF /// 自动将异常内容记录到Windows NT/2000的应用程序日志
yl1gx /// </summary>
C86J
IC" public class AppException:System.ApplicationException
Zy(W^~NT {
f v9V7 public AppException()
Te}8!_ohyC {
79xx2 if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
EodQ*{l }
'{V0M<O j{9D{ public AppException(string message)
nAjO6g6E {
[`rba' LogEvent(message);
Q^e}?v%=%3 }
Y<Fz)dQo {O`w,dMOI public AppException(string message,Exception innerException)
-Ty*aov {
D~$r\]av LogEvent(message);
#R.-KUW: if (innerException != null)
NH<5*I/ {
_q{c##Kf LogEvent(innerException.Message);
Ko&>C_N }
Gq }U|Z }
=aoMii viMzR(JU //日志记录类
m|:_]/*qE using System;
T2!6(,
s9 using System.Configuration;
K3x.RQQ- using System.Diagnostics;
7|[mz> "d using System.IO;
vDxe/x% using System.Text;
B9H@e#[ using System.Threading;
8W#heW\-] "t_-f7fS7 namespace MyEventLog
R]btAu;Z {
U2wbv Xr5- /// <summary>
L"j
tf78 /// 事件日志记录类,提供事件日志记录支持
nY`RRC /// <remarks>
Hr]h
Jc /// 定义了4个日志记录方法 (error, warning, info, trace)
nw<&3k(g} /// </remarks>
iCcB@GlA /// </summary>
}XSfst5-H public class ApplicationLog
HAJ 7m!P {
FcYFovS /// <summary>
L>a /// 将错误信息记录到Win2000/NT事件日志中
V` 1/SQX /// <param name="message">需要记录的文本信息</param>
ZObhF#Y9 /// </summary>
_cJ2\`M public static void WriteError(String message)
x`dHJq`_g {
FTQ%JTgT WriteLog(TraceLevel.Error, message);
?}a;}Q6 }
45MLt5^| *?Kr*]dnLl /// <summary>
;F~LqC$ /// 将警告信息记录到Win2000/NT事件日志中
K/3)g9Z&io /// <param name="message">需要记录的文本信息</param>
3T}izG] /// </summary>
}woo%N P public static void WriteWarning(String message)
mA*AeP_$ {
eZdu2.;< WriteLog(TraceLevel.Warning, message);
?hWwj6i& }
9=V:&.L HOE_S!N /// <summary>
p-zXp K" /// 将提示信息记录到Win2000/NT事件日志中
[vHv0" /// <param name="message">需要记录的文本信息</param>
/Ya_>+oo /// </summary>
NCk r /#! public static void WriteInfo(String message)
=UJ:t Sr {
(v}>tb*#` WriteLog(TraceLevel.Info, message);
PV4(hj }
3+G@g#MY /// <summary>
8$ma;U d /// 将跟踪信息记录到Win2000/NT事件日志中
h0g:@ae%& /// <param name="message">需要记录的文本信息</param>
lobGj8uxq /// </summary>
7~GB;1n public static void WriteTrace(String message)
X'`~s}vGO {
]):<ZsT WriteLog(TraceLevel.Verbose, message);
5i1>I=N }
mqAWL:VvQ7 {jho&Ai /// <summary>
kMOpi =Z1 /// 格式化记录到事件日志的文本信息格式
&xY^OCt /// <param name="ex">需要格式化的异常对象</param>
jlBanGs? /// <param name="catchInfo">异常信息标题字符串.</param>
i]|Yg$ /// <retvalue>
we;G]`@? /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
,XIz?R>;c /// </retvalue>
xgNJ eQ /// </summary>
Rx);7j/5 public static String FormatException(Exception ex, String catchInfo)
nZ@&2YPlem {
8&3V#sn' StringBuilder strBuilder = new StringBuilder();
w[!^;# if (catchInfo != String.Empty)
gUpb4uN {
#z2rzM@/: strBuilder.Append(catchInfo).Append("\r\n");
4)"n
RjGg }
}f8Uc+ strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
u#V5?i return strBuilder.ToString();
K!'AkTW+- }
C0
/g1;p( Z6_N$Z.A /// <summary>
G-He" 4& $ /// 实际事件日志写入方法
DiEluA&w9 /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
'6xQT-sUih /// <param name="messageText">要记录的文本.</param>
i 4%xfN /// </summary>
,>:;#2+og private static void WriteLog(TraceLevel level, String messageText)
]Qfn(u=o {
,^x4sA[/ try
N\#MwLm {
k7>|q"0C EventLogEntryType LogEntryType;
e=Z,
Jg switch (level)
Sz^5b! {
Fx
$Q;H!. case TraceLevel.Error:
f"9q^ LogEntryType = EventLogEntryType.Error;
oA =4=` break;
+AHUp) case TraceLevel.Warning:
W0k0$\iX LogEntryType = EventLogEntryType.Warning;
$T`<Qq-r break;
)Lwc case TraceLevel.Info:
4&_NJ\ LogEntryType = EventLogEntryType.Information;
kIGbG;"_ break;
9P~\Mpk case TraceLevel.Verbose:
+H9 >A0JF LogEntryType = EventLogEntryType.SuccessAudit;
gOr%!QaF break;
`S2[5i default:
0qo)."V{ LogEntryType = EventLogEntryType.SuccessAudit;
T.We: ,{ break;
v|Yh w }
Xy@7y[s] 1 29q`u; EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
=9z[[dQ|L //写入事件日志
SnFk>` eventLog.WriteEntry(messageText, LogEntryType);
Yb/i{@AJ g"?Y+j }
s_>
f5/i2 catch {} //忽略任何异常
(d<4"! }
)@L'wW } //class ApplicationLog
Wt=| }
+\|Iu;w _`I"0.B] 12.Panel 横向滚动,纵向自动扩展
F@* +{1R <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
)QG<f{wS ;Wl+zw 13.回车转换成Tab
*_KFW@bC: <script language="javascript" for="document" event="onkeydown">
,Vh{gm1 if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
(vB<%l.& event.keyCode=9;
@E-\ J7 yh </script>
m^#rB`0;L d , Y#H0` onkeydown="if(event.keyCode==13) event.keyCode=9"
C%U`"-%n@7 BWM YpZom 14.DataGrid超级连接列
+q)5dYRzV
DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
n#:N;T;\a K\$J4~EtG 15.DataGrid行随鼠标变色
a9T@$: private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
Ma\Gb+> {
e+j)~RBnu3 if (e.Item.ItemType!=ListItemType.Header)
Vg>( Y, {
U
R%4@ e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
i-'9AYyw e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
:OkT? (i }
GN0`rEh }
A5H3%o(6k #fL8Kq 16.模板列
Cz W:L&t <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
T<L^N+<,{N <ITEMTEMPLATE>
Pf_S[
sm <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
E-{^E. w1 </ITEMTEMPLATE>
Y=
]dvc </ASP:TEMPLATECOLUMN>
GHHav12][ bg3"W,bv% <ASP:TEMPLATECOLUMN headertext="选中">
Ga^Zb^y <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
Xu>r~^w=S <ITEMTEMPLATE>
r)1'ePI" <ASP:CHECKBOX id="chkExport" runat="server" />
WJ
d%2pO] </ITEMTEMPLATE>
s-RQMK}H <EDITITEMTEMPLATE>
w,Lvt
} <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
OKP9CLg9
</EDITITEMTEMPLATE>
q-rB2 </ASP:TEMPLATECOLUMN>
8> .J1C ? B E6 后台代码
gi-Yqco protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
p<&Xd}]"^W {
@0eHS+ //改变列的选定,实现全选或全不选。
<N`J`J-[ CheckBox chkExport ;
#_|sgS?1 if( CheckAll.Checked)
z OSs[[ {
rC7``#5 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
2<][%> ' {
9Li%KOY chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
`iJhG^w9M chkExport.Checked = true;
fsEzpUY:{W }
h@@nR(<i }
eXkujjSw" else
(__yh^h:m {
7;tJK^J` foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
#CnHf {
nD0}wiL{ chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
I0'[!kBF| chkExport.Checked = false;
T /mI[*1xI }
\(Pohw WWo }
_kdL'x }
78Aa|AJU UDc$"a}ds{ 17.数字格式化
{\z({Wlb] &%2*Wu; 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
"&/]@)TPz <%#Container.DataItem("price","{0:¥#,##0.00}")%>
Qf|U0 2~*Ez!.3 int i=123456;
X<MO7I string s=i.ToString("###,###.00");
c=[O
`/f 1N\D5g3 18.日期格式化
c=;:R0_'t N,J9Wu ZJ\ 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
* FeQ*`r -@F fU2 显示为: 2004-8-11 19:44:28
`?y<>m* -3&G"hfK 我只想要:2004-8-11 】
M^7MU}5w <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
o%4Gd~ 5I,gBT|B 应该如何改?
z*a8sr ?|1Mv1C? 【格式化日期】
:qvI%1cP= )g|xpb 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
7P B)'Wl"6 3s:%2%jVK 【日期的验证表达式】
+'G0 {;b m$LVCB A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
ZO7&vF} ^((\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})))?$
?,=f\Fz! ,=~z6[ B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
d$Y7u ^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$
3^StIw{X {3Y )rY!z 【大小写转换】
1
Vy,&[c~" HttpUtility.HtmlEncode(string);
'>k{tPi. HttpUtility.HtmlDecode(string)
g2R@`./S @-)tM.8~ 19.如何设定全局变量
phYDs9-K SMf+qiM-E Global.asax中
5y}
v{Ijt a{!r`>I\f Application_Start()事件中
-z:&*= s-W[.r| 添加Application[属性名] = xxx;
e.o;eD}" }#v{`Sn%^C 就是你的全局变量
ir:d'g1k %>WbmpIyc 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
%5 +jqj6O@Tjr HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
3"UsZyN: ^# A.@ 【ASPNETMENU】点击菜单项弹出新窗口
'ZQWYr9R S)A'Y]2X 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
t/Z:)4Z <?xml version="1.0" encoding="GB2312"?>
gcJF`H/iNK <MenuData ImagesBaseURL="images/">
"%@uO)A / <MenuGroup>
Ze!92g <MenuItem Label="内参信息" URL="Infomation.aspx" >
15zrrU~D <MenuGroup ID="BBC">
vtMJ@!MN; <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
a}d6o;li <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
s(&;q4| ......
l
SkEuN l9/:FiJ_ 最好将你的aspnetmenu升级到1.2版
\h3e-) nSY-?&l6P 21.读取DataGrid控件TextBox值
{$^SP7qV#> foreach(DataGrid dgi in yourDataGrid.Items)
rwpgBl {
m&R"2t_Z TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
);
6,H.v tb.Text....
j5%qv(w }
@ERu>nSP )Hf~d=GG 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
idJh^YD "]t>ZT:OJ 〖思归〗
IX?ZbtdX$` <asp:TemplateColumn HeaderText="数量">
*+8%kn`c <ItemTemplate>
i~& c| <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
\~X&o% y onkeyup="javascript:DoCal()"
-{9Gagy2& />
|,}E0G. .yVnw^gu <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
2W3W/> 2h </ItemTemplate>
dALK0U </asp:TemplateColumn>
4VIg>EL* b
Dg9P^<n <asp:TemplateColumn HeaderText="单价">
gKL1c{BV <ItemTemplate>
[xpQH? <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
M^H90GN)X onkeyup="javascript:DoCal()"
3:|-#F*k{ />
h)E|?b_ eO{@@?/y <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
67J*&5? | w{'2q^>6* </ItemTemplate>
2z983^ </asp:TemplateColumn>
'@:[axu d.pp3D9/ <asp:TemplateColumn HeaderText="金额">
2q%K)h <ItemTemplate>
*=vlqpG <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
3$"/>g/ </ItemTemplate>
\8"QvC] </asp:TemplateColumn><script language="javascript">
$o^e:Y,
a function DoCal()
lEfBe)7+ {
i=8UBryr'e var e = event.srcElement;
-3mgza var row = e.parentNode.parentNode;
rR!U; var txts = row.all.tags("INPUT");
r] t )x* if (!txts.length || txts.length < 3)
7C5pAb: return;
X&\o{w9% id?_>9@P var q = txts[txts.length-3].value;
4uX(_5#j var p = txts[txts.length-2].value;
f[qPG& ypA: P if (isNaN(q) || isNaN(p))
EDN(eh(_ return;
+{6`F1MO :l~E E! q = parseInt(q);
~|R[O^9B p = parseFloat(p);
>I-g[* S\|^ULrH txts[txts.length-1].value = (q * p).toFixed(2);
E&%jeR }
a9[< ^ </script>
~JE|f 7 79z)C35~ b5Q8pWZg, +Pw,Nl\KD hNO)~rt 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
pAg$oe# page_load
#` +]{4hR page.smartNavigation=true
bm}+}CJ@#0 H'h#wV`( 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 ?
Q>IH``1*e private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
ih!~G5Xi9i {
1#D<ZN for(int i=0;i<e.Item.Cells.Count-1;i++)
A7(M,4`6 if(e.Item.ItemType==ListItemType.EditType)
QUPf*3Oy {
C<t RU5| e.Item.Cells.Attributes.Add("Width", "80px")
,xj3w#`zaf }
vfXJYw+6_ }
n{{P3f }Z-I2
=] 26.对话框
C|$L6n>DR6 private static string ScriptBegin = "<script language=\"JavaScript\">";
/:Y9sz uW` private static string ScriptEnd = "</script>";
F;a3 l7Y8b` public static void ConfirmMessageBox(string PageTarget,string Content)
i>"dBJh]b {
v?%3~XoH string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
.M+v?Ad &Y=.D:z< ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
3`rIV*&_{ eKJ:?Lxv; Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
M,JA;a, _ ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
&gWiu9WbS //Response.Write(strScript);
!u%9;>T7 }
Oc^m_U8>^ 6oA~J]< 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
1C'P)f28 Wo2v5- 1.1 取当前年月日时分秒
WQ.i$ID/ currentTime=System.DateTime.Now;
9ET/I$n G)~MbesJ 1.2 取当前年
ixzTJ]y u int 年= DateTime.Now.Year;
;ct)H*
y 3]_qj*V 1.3 取当前月
'f6PjI int 月= DateTime.Now.Month;
/B=l,:TnJ (h|ch# 1.4 取当前日
=Pj@g/25u int 日= DateTime.Now.Day;
s@z{dmL U,38qKE 1.5 取当前时
a6qwL4 int 时= DateTime.Now.Hour;
.}~$1QKS oc((Yo+B 1.6 取当前分
WCoF{* int 分= DateTime.Now.Minute;
HNFhH0+^ 4$F:NW,v:) 1.7 取当前秒
Lxz int 秒= DateTime.Now.Second;
1wbTqc ($:y\,5(9I 1.8 取当前毫秒
0IpST int 毫秒= DateTime.Now.Millisecond;
WT?b Bf DH/L`$ 28.自定义分页代码:
HlF} UE{,.s 先定义变量 :
HrDTn&/ public static int pageCount; //总页面数
mHHzCKE , public static int curPageIndex=1; //当前页面
OFIMi^@ %Dra7B% 下一页:
*i%.{ YH if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
N
tO? {
)X~#n DataGrid1.CurrentPageIndex += 1;
^aT;aP^l curPageIndex+=1;
QQT G9s }
fPOEVmj< ||`qIElAW, bind(); // DataGrid1数据绑定函数
VOg/VGJ s><IykIi 上一页:
?LR"hZ> if(DataGrid1.CurrentPageIndex >0)
6 1L7
-~ {
Ogd8!'\ DataGrid1.CurrentPageIndex += 1;
;C+cE# curPageIndex-=1;
e/ WBgiLw }
U|9U(il [4ee <J bind(); // DataGrid1数据绑定函数
T^N L:78 -!i;7[N 直接页面跳转:
~~U< int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
6#fOCr;f7 D>ojW|@} if(a<DataGrid1.PageCount)
D9,e3.?p {
7F=2t_2O this.DataGrid1.CurrentPageIndex=a;
w[e0wh`. }
>/8ru*Oc I'xC+nL@ bind();
R04.K! .r7D)xNa@ 29.DataGrid使用:
Q6eN+i2 ; y{YXf!AS 添加删除确认:
}Z"28? private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
hTDV!B-_( {
m**0rpA foreach(DataGridItem di in this.DataGrid1.Items)
gH5CB%) {
vJ~4D*(]l if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
s c5\( b {
tSI& "- ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
v'h3CaA9j }
k{?!O\yY }
FPvuzBJ }
wH+FFXGJs 4=~ 9v 样式交替:
W)|c[Q\ ListItemType itemType = e.Item.ItemType;
t3pZjdLJd mVa?aWpez if (itemType == ListItemType.Item )
_yiRh: {
1% asx'^ e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
;gEp!R8 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
7t ZW^dF }
%)BwE else if( itemType == ListItemType.AlternatingItem)
#-}kG" {
WC3W+v G7 e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
&fCP2]hj' e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
S@9w'upd }
f3/SO+Me} &t~zD4u B 添加一个编号列:
<9ePi9D( DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
hU 9\y DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
N 9c8c :a#F for(int i=0;i<dt.Rows.Count;i++)
N$C{f;xV {
L[CU dt.Rows["number"]=(i+1).ToString();
@>M8Pe }
@c6"RHG9 \s.1R/TyD DataGrid1.DataSource=dt;
rny@n^F DataGrid1.DataBind();
q1U&vZ3]c i:V0fBR[> DataGrid1中添加一个CheckBox,页面中添加一个全选框
rn5"o8| private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
/_$~rW {
8.*\+nH foreach(DataGridItem thisitem in DataGrid1.Items)
"|(rVj= {
aUKh})B ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
UedvA9$&; }
/!^L69um }
<Gn8B^~$ 4kWg>F3 将当前页面中DataGrid1显示的数据全部删除
]|Ow_z8
O foreach(DataGridItem thisitem in DataGrid1.Items)
N8,EI^W8Z {
X!,#'&p& if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
x1 .3W j {
hq5NQi`
% string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
'9IP; Del (strloginid); //删除函数
0\?_lT2 }
2=igS#h }
}V\P,ck di8W2cwz 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)
]#Y| /d{glOk 在Application_Start中添加以下代码:
QN)/,=# Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
8W19#?7>B AppSettings["ConnStr"].ToString();
T[i7C3QS q,<n,0)K 31. 变量.ToString()
kb/|;! pi^^L@@d 字符型转换 转为字符串
[ED!J~lg8 12345.ToString("n"); //生成 12,345.00
WpXODkQL 12345.ToString("C"); //生成 ¥12,345.00
66I|0_ 12345.ToString("e"); //生成 1.234500e+004
>&$ $(Bp 12345.ToString("f4"); //生成 12345.0000
mgJShn8] 12345.ToString("x"); //生成 3039 (16进制)
B0-4ZT 12345.ToString("p"); //生成 1,234,500.00%
."~7 \E> t Aivu %}_| 32、变量.Substring(参数1,参数2);
eNIkiJ$uS ArNur~ 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);
2(c<U6#C'l EO4"Z@ji 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)
o>xxmyW| <SCRIPT language="javascript">
?D RFsA <!--
[ea6dv4p function gook(pws)
u}JQTro {
mr:kn0 frm.submit();
^/_\etV }
M[:O( //-->
F,'^se4& ddUjs8VvJ </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
`U{o: <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
{toyQ)C7 <tr>
:)KTZ <td>
l(h;e&9x <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
91-P)%? <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
[<#<:h&\ <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
O, bfdc[g4 5uQv <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
v\vE^|-\/ <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
qT4I Y$h zznPD%#Sc </td>
K$MJ#Zx^ Bxn8>< </tr>
pr0@sri@ c[wQJc </form>
OoAr% AIvL#12 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<PWBs% )'BJ4[aq\ 下面是获取用户输入的登陆信息的代码:
Ee t+ string name;
>>oASo name=Request.QueryString["EmailName"];
dD/29b( s,UN'~e1 try
l|@/?GaH {
;4-pupK~% int a=name.IndexOf("@",0,name.Length);
m[g< K f_user.Value=name.Substring(0,a);
|QAeQWP+1 f_domain.Value=name.Substring(a+1,name.Length-(a+1));
,z?<7F1q= f_pass.Value=Request.QueryString["Psw"];
2a._?(k_y }
jMz1s%C \3n{w
catch
% +kT {
37:b D Script.Alert("错误的邮箱!");
.LXh]I* Server.Transfer("index.aspx");
%{N$1ht^ }