1. 打开新的窗口并传送参数:
{&)E$M _I#a`G 传送参数:
@?[}\9dW response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
|\h<!xR }H9V$~}@- 接收参数:
$7&t`E)qY string a = Request.QueryString("id");
M_#^zo
"x string b = Request.QueryString("id1");
S(5&%}QFQ 5[rA>g~ 2.为按钮添加对话框
qa/VSk!{ Button1.Attributes.Add("onclick","return confirm(’确认?’)");
S>EO6z# button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
sKL"JA
T 0d #jiG 3.删除表格选定记录
EceD\}
int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
YR0.m%U, string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
x`zE#sD axiP~t2 4.删除表格记录警告
jsIT{a*] private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
NGuRyZp69& {
jH]?vpP switch(e.Item.ItemType)
JO|xX<#: {
d2<+Pp case ListItemType.Item :
h[j(@P case ListItemType.AlternatingItem :
Xwk_QFv3 case ListItemType.EditItem:
Vg8c}>7 TableCell myTableCell;
4mwA o myTableCell = e.Item.Cells[14];
_{0IX LinkButton myDeleteButton ;
%9`\7h7K myDeleteButton = (LinkButton)myTableCell.Controls[0];
7!#34ue myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
Y-:dPc{ break;
|F52)<\ default:
C3e0d~C break;
4[f>kY%[ }
}FT8[m< JReJlDu }
};nOG; vo]$[Cp|4 5.点击表格行链接另一页
V=5v7Y3(j private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
Qon>[<]B {
?89_2W //点击表格打开
:P20g]( if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
mu&%ph= e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
[[vb w)u }
fk?(mxx" pwr]lV$w 双击表格连接到另一页
5s=L5]]r_j bWfT-Jewh 在itemDataBind事件中
35fsr= if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
9i/VvW {
_J33u3v string OrderItemID =e.item.cells[1].Text;
?M@ff0 ...
@N+6qO} e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
-!pg1w06 }
3`DwKv`+ ?<eH!MHF 双击表格打开新一页
*odwg$ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
qb7ur; {
E0<$zP}V}F string OrderItemID =e.item.cells[1].Text;
jL9to6 Hmr ...
|s*tRag e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
~ YCZvJ }
w2o5+G= ub=Bz1._ ★特别注意:【?id=】 处不能为 【?id =】
Tn(c%ytN 6.表格超连接列传递参数
iP+3) <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
VW *d*! <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
n~G-X
04QY
x}a 7.表格点击改变颜色
J+=+0{} if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
<&p0:S7 {
_q 1E4z e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
@}iY(-V this.style.color=’buttontext’;this.style.cursor=’default’;");
B>,&{ah/5J }
Fd/.\s EZg$mp1 写在DataGrid的_ItemDataBound里
b0!ZA/YC- if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
'AJlkLqm#> {
.z&,d&E e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
CWS&f
g%o{ this.style.color=’buttontext’;this.style.cursor=’default’;");
ca!DZ%y e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
\XT~5N6 }
)MU)'1jc, dSw%Qv*y QPT%CW61M 8.关于日期格式
:x/L.Bz n6s[q-td 日期格式设定
x*2I]4 DataFormatString="{0:yyyy-MM-dd}"
k1Thjt VqK/GWg 我觉得应该在itembound事件中
yUp"%_t0 e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
/DN!" 2C_/T8 9.获取错误信息并到指定页面
;Zow C#j &WAJ;7f 不要使用Response.Redirect,而应该使用Server.Transfer
%P tdFz$ ]9/{ e.g
15tT%TC // in global.asax
M~t;&po protected void Application_Error(Object sender, EventArgs e) {
5>*~1}0T if (Server.GetLastError() is HttpUnhandledException)
~AbTbQ3 Server.Transfer("MyErrorPage.aspx");
}Gg:y? tX *}l|;( //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
S,%BhQ[ }
La#otuw+? STY\c5 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
:r,o-D f+iM_MI 10.清空Cookie
^t#W?rxp& Cookie.Expires=[DateTime];
+ U]; Response.Cookies("UserName").Expires = 0
9 9S-P}xd `U[s d*C" 11.自定义异常处理
?ta(`+" //自定义异常处理类
'2BE"e using System;
( 17=|s using System.Diagnostics;
{Mx3G*hr 8O0E;6b namespace MyAppException
60r4%>d {
=&
.KKr /// <summary>
[$[1|r
*Q /// 从系统异常类ApplicationException继承的应用程序异常处理类。
~Dz`O"X3 /// 自动将异常内容记录到Windows NT/2000的应用程序日志
x]%'^7#v) /// </summary>
Az"(I>VfD public class AppException:System.ApplicationException
}"CX` {
[[sfuJD public AppException()
R x>>0%e. {
EA+}Rf6} if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
slWO\AYiO }
rfVHPMD0 BQTibd public AppException(string message)
w;Jby {
;)nV LogEvent(message);
fXJbC+ }
[TFd|ywn H6I]GcZ$ public AppException(string message,Exception innerException)
++)3*+N+
{
S_ Pa . LogEvent(message);
l[D5JnWxt if (innerException != null)
)lsR8Hi8 {
:xz,PeXo7 LogEvent(innerException.Message);
gZLzE*NZ }
1<ic
5kB }
|JD"iP: 4$^\s5 K //日志记录类
1>"[b8a/ using System;
j jLwHJ using System.Configuration;
h
&R1" using System.Diagnostics;
s
v}o% using System.IO;
eAPNF?0yh using System.Text;
[)E.T,fjMQ using System.Threading;
CMI V"- E"l/r4*f@ namespace MyEventLog
+.u)\'r;h {
1ae,s{| /// <summary>
YAoGVey /// 事件日志记录类,提供事件日志记录支持
f,_EPh> /// <remarks>
Xbp~cn /// 定义了4个日志记录方法 (error, warning, info, trace)
v3`k?jAaI /// </remarks>
ZFNn(n /// </summary>
~Os1ir. public class ApplicationLog
SL O~ {
dvl'Sq< /// <summary>
fd<a%nSD /// 将错误信息记录到Win2000/NT事件日志中
X>W2aDuEZ /// <param name="message">需要记录的文本信息</param>
h/a|-V}m& /// </summary>
/P>t3E2c public static void WriteError(String message)
ZgP~VB0)$ {
?mCino WriteLog(TraceLevel.Error, message);
X?8 EPCk }
qij<XNZU"& zcn/LF /// <summary>
1"4Pan /// 将警告信息记录到Win2000/NT事件日志中
F^/1 u /// <param name="message">需要记录的文本信息</param>
25zmde~ w /// </summary>
P wY~L3, public static void WriteWarning(String message)
#!i& {
+nj
2 WriteLog(TraceLevel.Warning, message);
OdrnPo{ }
?{Rv/np=F i6Kcj /// <summary>
\=yWJ /// 将提示信息记录到Win2000/NT事件日志中
=5v=<, ] /// <param name="message">需要记录的文本信息</param>
*/7+pk( /// </summary>
\69h>h public static void WriteInfo(String message)
{Hu@|Q\~& {
<V~B8C!) WriteLog(TraceLevel.Info, message);
H>qw@JiO! }
'Cv>V"X: ` /// <summary>
"nzQ$E>?$ /// 将跟踪信息记录到Win2000/NT事件日志中
9
Y-y?Y /// <param name="message">需要记录的文本信息</param>
J:!m49fF /// </summary>
Hv~&RZpe public static void WriteTrace(String message)
dN%*-p( {
q|}%6ztv- WriteLog(TraceLevel.Verbose, message);
Q^H8gsv }
5>e#SW DQ86(4e*g# /// <summary>
,_N+t:*#0 /// 格式化记录到事件日志的文本信息格式
nN]GO} /// <param name="ex">需要格式化的异常对象</param>
1j!LK- /// <param name="catchInfo">异常信息标题字符串.</param>
w I7iE4\vz /// <retvalue>
1_of;=9V /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
KS3>c7 /// </retvalue>
\Xr
Sn_p- /// </summary>
I+4#LR3; public static String FormatException(Exception ex, String catchInfo)
=G9 9U/ {
<U]!1 StringBuilder strBuilder = new StringBuilder();
fVXZfq6 if (catchInfo != String.Empty)
6`
8H k; {
bl8EzO strBuilder.Append(catchInfo).Append("\r\n");
FkH HTO }
,DZoE~ strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
YcaomPo return strBuilder.ToString();
e` QniTkT }
@F-InfB8. Vx<`6uv /// <summary>
XB.xIApmy /// 实际事件日志写入方法
Nf!g1D"U /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
`+\6;nM /// <param name="messageText">要记录的文本.</param>
hn-!W;j /// </summary>
Ki,SFww8r private static void WriteLog(TraceLevel level, String messageText)
2lc {
w1&\heSQ try
ZR,"w {
o
_G,Ph!7 EventLogEntryType LogEntryType;
aWCZ1F switch (level)
M&v;#CV {
C+m%_6< case TraceLevel.Error:
zFba("E Z LogEntryType = EventLogEntryType.Error;
$5]}] break;
X9-WU\?UC case TraceLevel.Warning:
nqFJNK]a LogEntryType = EventLogEntryType.Warning;
%tvP\(]h break;
nZbINhls case TraceLevel.Info:
'e(]woe LogEntryType = EventLogEntryType.Information;
T)Zef break;
Pss$[ % case TraceLevel.Verbose:
b4R;#rm LogEntryType = EventLogEntryType.SuccessAudit;
3OlXi9>3 break;
y v58~w*" default:
x@)G@'vV| LogEntryType = EventLogEntryType.SuccessAudit;
F{*h~7D-| break;
'nMj<:0wlD }
6L!/#d0 sy]hMGH:3W EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
4x)etH^o //写入事件日志
P2!+ZJ& eventLog.WriteEntry(messageText, LogEntryType);
28!
ke "M!]t,?S }
=]
+owl2 catch {} //忽略任何异常
N8E }
E^`-:L(_ } //class ApplicationLog
]wZlJK`K }
{M^BY,%* [KMNMg 12.Panel 横向滚动,纵向自动扩展
w:VD[\h <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
TFAd
3cA'9 13.回车转换成Tab
4aGVIQ <script language="javascript" for="document" event="onkeydown">
$VxKv7: if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
nf0]<x2 event.keyCode=9;
\V_Tc` </script>
hjgB[
&U> r6QshCA" onkeydown="if(event.keyCode==13) event.keyCode=9"
Ht"?ajW{ B{lj.S`mB 14.DataGrid超级连接列
Bc*FH>E DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
c<a)Yqf"] *yZ `aKfH 15.DataGrid行随鼠标变色
}1#prQ0F private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
YZk.{#^ c {
XkhGU?={ if (e.Item.ItemType!=ListItemType.Header)
67g"8R#.V {
FX1H2N( e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
EvKzpxCh e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
X=KC+1e }
W8_$]}G8E }
idNra# Rz#q68 16.模板列
^?8/9o <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
;EB^1*AEw <ITEMTEMPLATE>
q"e]\Tb=we <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
$3=S\jyfK </ITEMTEMPLATE>
2oo/KndU </ASP:TEMPLATECOLUMN>
`tPVNO,l 6Qk[TL)t <ASP:TEMPLATECOLUMN headertext="选中">
l86gs6> <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
DS1{~_>nFu <ITEMTEMPLATE>
RuGG3"| <ASP:CHECKBOX id="chkExport" runat="server" />
fgoLN\ </ITEMTEMPLATE>
ictV7) <EDITITEMTEMPLATE>
`k6ZAOQtX <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
.Im=-#EN </EDITITEMTEMPLATE>
"U-dw%b}b </ASP:TEMPLATECOLUMN>
}0IeKpu5 *>h|<|T' 后台代码
P?ms^ protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
4Ql9VM%y {
#:NY9.\o //改变列的选定,实现全选或全不选。
lc$wjK[w[ CheckBox chkExport ;
"WzKJwFr if( CheckAll.Checked)
!pZ<{|cH {
FyQr$;r foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
|->CI {
tE#;$Ss chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
FuM:~jv chkExport.Checked = true;
KL yI*` }
Fs3
:NH }
P-/"sD else
bXi!_'z$ {
P~M[i9 V foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
1,(WS
F {
+#Wwah$ chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
[w90gp1O[ chkExport.Checked = false;
v5F+@ug }
:8`~dj. }
3rY\y+m }
T&4f}g/ ?>Ngsp>-P 17.数字格式化
7`f%?xVn0 GC~nr-O 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
_= cU2 <%#Container.DataItem("price","{0:¥#,##0.00}")%>
jV[;e15+ 8iTB int i=123456;
xnfJruT string s=i.ToString("###,###.00");
uBl&{$< l,*5*1lM 18.日期格式化
\zcR75 as(/
>p 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
>=4(' J 5(^VKj 显示为: 2004-8-11 19:44:28
{- &`@V S=gby 我只想要:2004-8-11 】
O0FUJGuTS <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
U:z5`z! ]q~bi<E9W 应该如何改?
n@L@pgo%~ U\u07^h[ 【格式化日期】
ez5J+ B Dp")[l 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
-p?&vQDo` !6l*Jc3 【日期的验证表达式】
(g*j+i ):[}NDmC A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
p|(SR~;6 ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
>C19Kie72 ]}kw'& B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
ap8q`a{j^ ^\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]))$
4l7
Ny\J zn>+\ 【大小写转换】
wBvVY3VQ^
HttpUtility.HtmlEncode(string);
=P%&]5ts HttpUtility.HtmlDecode(string)
Q6RTH ;NH^+h 19.如何设定全局变量
$}AbR:z Ia<V\$ # Global.asax中
L+*:VP6WD :0,yq?M Application_Start()事件中
4BSqL!i( $}.+}'7$ 添加Application[属性名] = xxx;
1+gF fKq |;7mDhj= 就是你的全局变量
b8_F2 |j-ng; 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
$_iE^zZaU^ 4&=</ok6`0 HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
JEk'2Htx <:Mz2Rg 【ASPNETMENU】点击菜单项弹出新窗口
aU~?&] E%DT;1 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
qY$ [2] <?xml version="1.0" encoding="GB2312"?>
NYr)=&)Ke. <MenuData ImagesBaseURL="images/">
*FktI\tS <MenuGroup>
EK5$z>k>m <MenuItem Label="内参信息" URL="Infomation.aspx" >
0>8w On <MenuGroup ID="BBC">
B;?)X&n|X <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
/y$ Fw9R; <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
b*.aaOb ......
6UqAs<c9 vJaWHC$q 最好将你的aspnetmenu升级到1.2版
h=0a9vIXF P%)r4+at 21.读取DataGrid控件TextBox值
6Iqy"MQuq foreach(DataGrid dgi in yourDataGrid.Items)
pr,,E[ {
)AxD|A TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
I/XSW # tb.Text....
p20JUzy }
Scx!h. \5 ^~.AV]t| 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?
)
$_1U!z &
Wod 〖思归〗
*g,ls(r\[ <asp:TemplateColumn HeaderText="数量">
+8C}%6aX <ItemTemplate>
Z[OX{_2]K <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
PMpq>$6b7 onkeyup="javascript:DoCal()"
0F@ ~[W|2 />
W} i6{Vh F_(~b <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
s*[
I"iE </ItemTemplate>
q~b# ml2QS </asp:TemplateColumn>
":8\2Qp ]c~yMA+]FZ <asp:TemplateColumn HeaderText="单价">
^8;MY5Wbs <ItemTemplate>
#|ts1lD#ah <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
",.f
onkeyup="javascript:DoCal()"
D>[Sib/@ />
"qNFDr(WM Jz~: <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
!9WGZfK+0Y 4hy-M>!D| </ItemTemplate>
;_vhKU)%J# </asp:TemplateColumn>
9e=}PL L?j0t*do <asp:TemplateColumn HeaderText="金额">
Bd <0} <ItemTemplate>
P*A+k"DU1 <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
Yu\$Y0 {] </ItemTemplate>
fJ[ ^_,O </asp:TemplateColumn><script language="javascript">
m~5 unB9 function DoCal()
Cd_@< {
Ai1"UYk\\Y var e = event.srcElement;
J<;io! var row = e.parentNode.parentNode;
&J&'J~N var txts = row.all.tags("INPUT");
>jsY'Bm if (!txts.length || txts.length < 3)
U?sHh2* return;
Tj#S')s8 :31_WJ^ var q = txts[txts.length-3].value;
()IZ7#kL? var p = txts[txts.length-2].value;
Ik$$Tn&; le\-h'D if (isNaN(q) || isNaN(p))
!:!(=(4$P return;
pE&G]ZC IQ@9S q = parseInt(q);
D{6y^@/ p = parseFloat(p);
?"mZb#% Qdq;C,}Ai. txts[txts.length-1].value = (q * p).toFixed(2);
!iKW1ks }
OUi;f_*[r </script>
~tA ^[tK FC] *^B %-blx)Pc T0tX%_6` Y2x|6{ # 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
~j'D%:[+VH page_load
1`K-f
m) page.smartNavigation=true
Q;$k?G=l 'z;(Y*jb 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 ?
Xx{| [2` private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
VGc*aQYa {
b^$`2m-?@f for(int i=0;i<e.Item.Cells.Count-1;i++)
o>r
P\
if(e.Item.ItemType==ListItemType.EditType)
&T,|?0>~=J {
ZOEe -XW e.Item.Cells.Attributes.Add("Width", "80px")
*'-4%7C`1 }
<=">2WP{ }
EwzR4,r\M KVa{;zBwl 26.对话框
,Q-,#C" private static string ScriptBegin = "<script language=\"JavaScript\">";
l&ueD&*4& private static string ScriptEnd = "</script>";
PaI\y!f ?>h
~"D# public static void ConfirmMessageBox(string PageTarget,string Content)
ChTq !W {
CW+kKN string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
Vc(4d-d5 .D
4G;=Q ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
x"Ky_P~ 8M*+
| Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
~a([e\~ ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
u2oS Ci //Response.Write(strScript);
e,xL~P{| }
z< L2W", EfEgY|V0 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
eP @#I^_ [=>=5'- 1.1 取当前年月日时分秒
_ p\L,No currentTime=System.DateTime.Now;
,p d-hu A3a/ /e 1.2 取当前年
|#2WN- int 年= DateTime.Now.Year;
T)\}V#iA* ipwlP|UjQ5 1.3 取当前月
z$?F^3> int 月= DateTime.Now.Month;
i<"lXu 1,wcf, 1.4 取当前日
ddfGR/1X int 日= DateTime.Now.Day;
@ b!]Jw .yj@hpJM 1.5 取当前时
4/b.;$ int 时= DateTime.Now.Hour;
*6/IO&y1a =\O#F88ui 1.6 取当前分
e'K~WNT int 分= DateTime.Now.Minute;
efXnF*Z j;3I` : 1.7 取当前秒
<gF]9%2E int 秒= DateTime.Now.Second;
k_7m[o *]]Zpa6 1.8 取当前毫秒
E{orezP int 毫秒= DateTime.Now.Millisecond;
'dKfXYY1`N wb$uq/| 28.自定义分页代码:
.g8*K " u"HGT=Nl 先定义变量 :
b(0<,r8 public static int pageCount; //总页面数
.$&^yp public static int curPageIndex=1; //当前页面
G,)zn9X ai_ve[A 下一页:
o]<Z3) if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
~!$"J}d}< {
PFJ$Ia| DataGrid1.CurrentPageIndex += 1;
axnlI*! curPageIndex+=1;
aJ+V]WmA }
(Mk7"FC7 V'i-pn2gyu bind(); // DataGrid1数据绑定函数
'#+&?6 p 0vv~G\yM 上一页:
}p~2lOI if(DataGrid1.CurrentPageIndex >0)
oPKLr31zt {
p3M!H2W DataGrid1.CurrentPageIndex += 1;
j9+4},>>CU curPageIndex-=1;
WQ9e~D" }
fQfn7FaW_\ (.4lsKN< bind(); // DataGrid1数据绑定函数
Tvx1+0Z%z d6J/)nl 直接页面跳转:
OD8
fn int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
aFTWzz Zonjk%tC if(a<DataGrid1.PageCount)
;QBS0x\f@ {
&en.
m>9, this.DataGrid1.CurrentPageIndex=a;
O&l4/RtQ\) }
$r!CQ2S ~7 i{~<? bind();
JIyS e:p3
^ }7O|Y7 29.DataGrid使用:
E#J})cPzw f!'i5I] 添加删除确认:
fp [gKRSF private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
@"7S$@cO {
bT,_=7F foreach(DataGridItem di in this.DataGrid1.Items)
PT~htG<Fw {
pkn^K+<n, if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
HA,o2jZ?In {
iXMJ1\!q\| ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
L I<S }
9+@h2"|N4* }
aZmN(AJ8v }
8<L{\$3HP| E=8'! 样式交替:
c~R'`Q ListItemType itemType = e.Item.ItemType;
Xd(^7~i RDdnOzx if (itemType == ListItemType.Item )
Ev7.! {
al2lC#Sy e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
xgk~%X%K e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
kq}byv}3I }
tpJA~!mG3 else if( itemType == ListItemType.AlternatingItem)
Q4u.v,sE {
?AyxRbk e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
d>p' A_ e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
`s7pM }
aw*]b.f flmQNrC.8 添加一个编号列:
\FsA-W\X DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
0/GBs~P DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
@lN\.O \W*L9azr for(int i=0;i<dt.Rows.Count;i++)
$*0-+h {
^\}qq>_ dt.Rows["number"]=(i+1).ToString();
E{\CE1* }
vG_R( ]d \;&;K'
DataGrid1.DataSource=dt;
&E&~9"^hQL DataGrid1.DataBind();
Pe@#6N` Y9^l|,bm5 DataGrid1中添加一个CheckBox,页面中添加一个全选框
kE:[6reG private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
a}yb~:TC {
e0P[,e*0 foreach(DataGridItem thisitem in DataGrid1.Items)
q/b+V)V {
So1TH% ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
`58% &3lp }
vD#U+ }
(=!At)O l eC!Yj 将当前页面中DataGrid1显示的数据全部删除
R/~!km foreach(DataGridItem thisitem in DataGrid1.Items)
1$0Kvvg[ {
vfkF@^D if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
x9 > ho {
GB$`b'x@S string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
F!X0Wo= Del (strloginid); //删除函数
=o9s?vOJ }
s;vt2>;q+e }
=Kkqk AX v
q~XE 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)
jSp&\Wj b Qf~>5(,h 在Application_Start中添加以下代码:
V}s/knd Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
_.JQ h AppSettings["ConnStr"].ToString();
:BPgDLL, kPX+n+$ 31. 变量.ToString()
(%B{=w}8 `H! (hMMV 字符型转换 转为字符串
^{}G4BEY 12345.ToString("n"); //生成 12,345.00
NTu|cX\R 12345.ToString("C"); //生成 ¥12,345.00
)gdeFA V 12345.ToString("e"); //生成 1.234500e+004
.aNh>`OT' 12345.ToString("f4"); //生成 12345.0000
:M"+ 12345.ToString("x"); //生成 3039 (16进制)
F=qILwd 12345.ToString("p"); //生成 1,234,500.00%
u !BU^@ P rCw4a?YS 32、变量.Substring(参数1,参数2);
nYx
/q
o
]*yI[\ 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);
x {NBhq(4 D)PX |xrn 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)
E*YmHJ:k <SCRIPT language="javascript">
B=cA$620 <!--
}+!"mJx@ function gook(pws)
in1rDN%Vi {
dEk#"cvg frm.submit();
IS]A<}j/- }
HUx`RX0> //-->
b=EI?XwJ '/I`dj </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
Wr[LC& <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
x Q"uC!Gu4 <tr>
|qX?F` <td>
a[K&;) <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
qraXAQ <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
x"z\d,O%W <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
Ir JSU_ >>{):r
Z <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
J2Dn <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
?^~ZsOd8B
Pl B3"{}0Q </td>
*O$|,EsY -- %XkO </tr>
XCI D|5mNX%e </form>
]0R*F30] Y!M0JSaM 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。
%G!!0V! 3P0z$jh"H 下面是获取用户输入的登陆信息的代码:
\aJ>? string name;
Osqk#Oh name=Request.QueryString["EmailName"];
Vo"G@W)lZ "e-Y?_S7R8 try
.JKH=?~\ {
fn<dr(Dx int a=name.IndexOf("@",0,name.Length);
JzEg`Sn^ f_user.Value=name.Substring(0,a);
E{V?[HcWq f_domain.Value=name.Substring(a+1,name.Length-(a+1));
T9c7cp[ f_pass.Value=Request.QueryString["Psw"];
U
'{PpZ }
X4o#kW G
`|7NL catch
__}SHU0R {
;}Jv4Z Script.Alert("错误的邮箱!");
{gzQ/|}#z- Server.Transfer("index.aspx");
CG%bZco(( }