1. 打开新的窗口并传送参数:
K!p,x;YX DY8(g=TI|1 传送参数:
Yr=8!iR$ response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
sds}bo
rkq#7 接收参数:
JRXRi*@ string a = Request.QueryString("id");
Apmw6cc string b = Request.QueryString("id1");
teAukE=} SnW7 x 2.为按钮添加对话框
J smB^ Button1.Attributes.Add("onclick","return confirm(’确认?’)");
;`+`#h3-V button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
H;QA@tF>5 E:)Cp 3.删除表格选定记录
LX\)8~dp int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
B X*69 string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
P].eAAXnP }-74 f 4.删除表格记录警告
9mDnKW private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
<6/= y1QC) {
KU]ok ' switch(e.Item.ItemType)
Ps3~{zH` {
gGEIK0\{ case ListItemType.Item :
>k;p.Pay% case ListItemType.AlternatingItem :
\%TyrY+`K case ListItemType.EditItem:
KzNm^^#/$A TableCell myTableCell;
Z|I-BPyn myTableCell = e.Item.Cells[14];
DHv2&zH LinkButton myDeleteButton ;
^^U%cu Kg myDeleteButton = (LinkButton)myTableCell.Controls[0];
pM9yOY myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
;}K62LSR break;
-%,"iaO default:
>La><.z~ break;
q(H ip<6p }
O[FZq47 'C^;OjAg }
p?JQ[K7i GJ,aRI 5.点击表格行链接另一页
'OD)v private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
L=]p_2+ {
xzr<k Sp //点击表格打开
at|
\FOKj if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
t"|DWC* e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
[1SMg$@< }
|cgui cS(;Qs]Q 双击表格连接到另一页
G>K@AW# 0e16Ow6\!1 在itemDataBind事件中
DW>ES/B8$( if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
[EOVw%R {
8I.VJ3Q
string OrderItemID =e.item.cells[1].Text;
,F9nDF@) ...
wXbsS)#/ e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
ugLlI2 nJ }
Gq1)1
)M:)y 双击表格打开新一页
;&S;%W>| if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
q=4Bny0 {
\k; n20\u string OrderItemID =e.item.cells[1].Text;
<<,>S&/ ...
Z!_n_Fk e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
nQ-mmY># }
R,,Qt
TGB )R &,'`\ ★特别注意:【?id=】 处不能为 【?id =】
DpvrMI~I_ 6.表格超连接列传递参数
<#*.}w~ <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
^~1<f1( <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
wd+K`I/v7h I 8zG~L%" 7.表格点击改变颜色
0` 5e if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
I2[]A,f, {
g`[$XiR e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
IPtvuEju\ this.style.color=’buttontext’;this.style.cursor=’default’;");
x+7*ADKb }
l'"'o~MC snC/H G7 写在DataGrid的_ItemDataBound里
FnE6?~xa
if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
wk @,wOt {
[_.n$p- e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
24B<[lSK this.style.color=’buttontext’;this.style.cursor=’default’;");
PVYyE3`UB e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
WD.U"YI8y }
!%[S49s ].m qxf tTuX\;G 8.关于日期格式
=J/ FJb {dzoEM[
1s 日期格式设定
=;ICa~`C; DataFormatString="{0:yyyy-MM-dd}"
L'E^c,-x~ fYX<d%?7 我觉得应该在itembound事件中
>cgpaj x* e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
tJU-<{8 rQr!R$t/[ 9.获取错误信息并到指定页面
,Eu?JH&}u Z
a(|(M H 不要使用Response.Redirect,而应该使用Server.Transfer
3CZS) z9
($. e.g
uM S*(L_ // in global.asax
{/ 2E*|W~I protected void Application_Error(Object sender, EventArgs e) {
?9xu{B>6 if (Server.GetLastError() is HttpUnhandledException)
L0"~[zB]N Server.Transfer("MyErrorPage.aspx");
(CE7j<j Dl,`\b@Fw3 //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
2*1ft>Uty }
RN9;kB)c RUo9eQIPD 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
fY W|p<Q0 4XJiIa? 10.清空Cookie
OH'ea5xq Cookie.Expires=[DateTime];
@~:8ye Response.Cookies("UserName").Expires = 0
SSA W52xC C5X(U: 11.自定义异常处理
|.U)ll(c //自定义异常处理类
q.V-LXM using System;
$/Ov2z using System.Diagnostics;
[*4fwk^ fZ{[]dn[ namespace MyAppException
$>q@SJ1q {
!#N\b /// <summary>
c0rk<V%5+ /// 从系统异常类ApplicationException继承的应用程序异常处理类。
m9":{JI.w /// 自动将异常内容记录到Windows NT/2000的应用程序日志
Im?LIgt$ /// </summary>
#b)e4vwCq public class AppException:System.ApplicationException
7~UR!T9 {
KoBW}x9Jp public AppException()
eV};9VJ$F {
.*5 Z"Q['G if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
>)**khuP7 }
`dW]4>`O w0J|u'H public AppException(string message)
#wR;|pN {
Zv!{{XO2; LogEvent(message);
,r^"#C0J} }
K=\O5#F?3
jNyoN1M public AppException(string message,Exception innerException)
"484n/D {
[V}, tO|
LogEvent(message);
)!W45"l-3M if (innerException != null)
CIC[1, {
Lx[
,Z,kD LogEvent(innerException.Message);
diT=x52 }
cgT }
(<c7<_-H =|U@ //日志记录类
WO*9+\[v using System;
LKF/u` 0dP using System.Configuration;
e%O0hE using System.Diagnostics;
k$i'v:c|:i using System.IO;
=o 7}]k7 using System.Text;
md Gwh7/3 using System.Threading;
zsQoU&D 5 RHY4P4B<v> namespace MyEventLog
9
c3E+ {
EL{vFP /// <summary>
nt
:N!suP3 /// 事件日志记录类,提供事件日志记录支持
8Ogv9 /// <remarks>
F-gE<< /// 定义了4个日志记录方法 (error, warning, info, trace)
9S7A!AKE /// </remarks>
h2q/mi5{ /// </summary>
>Aq:K^D/3F public class ApplicationLog
p( LZ)7/ {
aX6}6zubr /// <summary>
Y]g?2N=E /// 将错误信息记录到Win2000/NT事件日志中
=:I+6PlF@ /// <param name="message">需要记录的文本信息</param>
AC- )BM'; /// </summary>
b/("Y.r= public static void WriteError(String message)
6W2hr2Zy9 {
=H`Q~Xx WriteLog(TraceLevel.Error, message);
%Y nmuZ }
dA~
3>f*b_ Xyx"A(v^l /// <summary>
~Ci{3j :] /// 将警告信息记录到Win2000/NT事件日志中
iz[gHB /// <param name="message">需要记录的文本信息</param>
^+|De}`u /// </summary>
| A)\
: public static void WriteWarning(String message)
r ,(Mu {
8p^B hd WriteLog(TraceLevel.Warning, message);
H`QQG! }
k!L@GQ zTm]AG|0 /// <summary>
}
p:%[ /// 将提示信息记录到Win2000/NT事件日志中
%&<LNEiUN /// <param name="message">需要记录的文本信息</param>
(P|pRVO /// </summary>
V9%aBkf8w public static void WriteInfo(String message)
?&+9WJ<M {
:!TIK1 WriteLog(TraceLevel.Info, message);
M[]A2'fS }
5"KlRuv% /// <summary>
2umv|]n+l| /// 将跟踪信息记录到Win2000/NT事件日志中
v3[@1FQ" /// <param name="message">需要记录的文本信息</param>
TLa]O1=Bf. /// </summary>
o*S"KX$ public static void WriteTrace(String message)
Tl("IhkC {
>bo'Y9C WriteLog(TraceLevel.Verbose, message);
OjE`1h\ }
wIvo"|% Vm1-C<V9 /// <summary>
:D:DnVZ-[@ /// 格式化记录到事件日志的文本信息格式
f>$``.O /// <param name="ex">需要格式化的异常对象</param>
Wd,a?31| /// <param name="catchInfo">异常信息标题字符串.</param>
2tQ`/!m>v$ /// <retvalue>
$&I'o /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
5g5'@vMN /// </retvalue>
umEVy*hc /// </summary>
SX0_v_%M public static String FormatException(Exception ex, String catchInfo)
L@Nu/(pB= {
LRb,VD:/Y StringBuilder strBuilder = new StringBuilder();
pW\'ZRj if (catchInfo != String.Empty)
)X+mV {
[5d2D,) strBuilder.Append(catchInfo).Append("\r\n");
qCQ./"8 }
15\Ph[6g strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
uZjC
c M return strBuilder.ToString();
*?p|F&J }
z_|oCT!6 Q4]4@96Aj /// <summary>
kLSrj\6I[ /// 实际事件日志写入方法
6=GZLpv /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
YUWn;# /// <param name="messageText">要记录的文本.</param>
W&Y"K)` /// </summary>
VyLH"cCv private static void WriteLog(TraceLevel level, String messageText)
eDKxn8+(H {
D@ek9ARAq try
I27,mS+] {
#o`Ny4sq/ EventLogEntryType LogEntryType;
= "ts`> switch (level)
<cN~jv-w$ {
dI'SwnR case TraceLevel.Error:
+~zXDBS9 LogEntryType = EventLogEntryType.Error;
~`MS~,, break;
k"UO c= case TraceLevel.Warning:
7*o*6,/ LogEntryType = EventLogEntryType.Warning;
L:nXW z break;
\K2*Q&> case TraceLevel.Info:
o89(
h! LogEntryType = EventLogEntryType.Information;
z9/G4^qF break;
BHDML.r }M case TraceLevel.Verbose:
3Hi+Z}8 LogEntryType = EventLogEntryType.SuccessAudit;
],etZ%z& break;
C)-^< default:
\*vHB`.,ey LogEntryType = EventLogEntryType.SuccessAudit;
Nh?|RE0t break;
QbFHfA2Ij }
q<vf,D@{ ! I&yVx8aH} EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
Wzq>JNny //写入事件日志
c~}l8M% eventLog.WriteEntry(messageText, LogEntryType);
Tb;d.^ upn~5>uCP }
\ gwXH catch {} //忽略任何异常
J97R0 }
koG{
|elgB } //class ApplicationLog
]$-cMX }
8TV;Rtl ed 59B)?l 12.Panel 横向滚动,纵向自动扩展
:;;E<74e
i <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
DPgm%Xq9(! 6c4&VW 13.回车转换成Tab
'fV%Z <script language="javascript" for="document" event="onkeydown">
xg`h40c if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
'=E9En#@ event.keyCode=9;
imB# Eo4eY </script>
sfT+i;p , :n|
?7 onkeydown="if(event.keyCode==13) event.keyCode=9"
j-@kW'K +>^7vq-\' 14.DataGrid超级连接列
<Q< AwP DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
vYmSKS -F/st 15.DataGrid行随鼠标变色
BcWcdr+}9 private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
B0}~G(t( {
-XK0KYhgW if (e.Item.ItemType!=ListItemType.Header)
5FKBv
e@ {
JNI>VP[c e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
?WI3/>:< e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
x+5p1sv6 }
o?Nu:&yE }
+Lm4kA+aE5 lU]un&[N 16.模板列
rsNf$v-* <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
BbOu/i| <ITEMTEMPLATE>
or*HC&c7 <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
=v~1qWX </ITEMTEMPLATE>
%u\26[/ </ASP:TEMPLATECOLUMN>
_ o6G6e, &-l8n^ <ASP:TEMPLATECOLUMN headertext="选中">
NLd``=& <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
}-p[V$:S <ITEMTEMPLATE>
f'(l&/4z{ <ASP:CHECKBOX id="chkExport" runat="server" />
GOy%^:Xd </ITEMTEMPLATE>
hn)a@ <EDITITEMTEMPLATE>
ITJ q <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
jn%kG ~]'Q </EDITITEMTEMPLATE>
F!!N9VIC </ASP:TEMPLATECOLUMN>
o5o^TW{ zoDZZ%{ 后台代码
[U
=Uo* protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
l.)}t)my} {
SkNre$>t{ //改变列的选定,实现全选或全不选。
j=+"Qz/hr_ CheckBox chkExport ;
^H'a4G3 if( CheckAll.Checked)
EpPf_ \o {
^4Am
%yyT foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
`b5 @}', {
>RI>J.~ chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
GyI-)BlDC chkExport.Checked = true;
{i~8 : }
x|64l`Vp(: }
vEe NW else
gYop--\14] {
ybdd;t}&1 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
xG&SX#[2 {
+#J,BKul chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
O;Y:uHf chkExport.Checked = false;
t=euE{c }
Kr`]_m }
4pU>x$3$ }
D<{{ :7n !G5a*8] 17.数字格式化
&F$:Q:* * &:B<Q$g# 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
B#%;Qc <%#Container.DataItem("price","{0:¥#,##0.00}")%>
V_n<?9^4 X2 6
int i=123456;
%bXtKhg5eJ string s=i.ToString("###,###.00");
Mn: /1eY /(C~~XP) 18.日期格式化
7sNw 1YxgR}7 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
H&}ipaDO 'BMy8 显示为: 2004-8-11 19:44:28
%WFu<^jm S*)1|~pRvQ 我只想要:2004-8-11 】
n}-3o]ku <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
RuW!*LI |dE
-^"_ 应该如何改?
>cmE
t !|?e7u7 【格式化日期】
G28O%jD? 5x2Ay=s 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
w2(guL($ 6$ Q,Y}j 【日期的验证表达式】
h( QYxI,| 3 *S{;p A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
cF T 9Lnz ^((\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})))?$
?ne_m:J[ bEuaOBc B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
R!
s6% :Yg ^\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]))$
oSb, :^Wl >n5:1.g 【大小写转换】
xom<P+M!| HttpUtility.HtmlEncode(string);
{1J&xoV" HttpUtility.HtmlDecode(string)
_#$9 y1bd bucR">_p 19.如何设定全局变量
7Ob*Yv=[ u8zbYd3 Global.asax中
\6|/RFT ,FQdtNMap Application_Start()事件中
0IM8 '8FC<=+p[ 添加Application[属性名] = xxx;
}S_oH9A w[Gh+L30=5 就是你的全局变量
72oWhX=M% 1m<RwI3s 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
qd@&59zSh )4Q?aMm HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
o;F" {RZ a5'#j35 【ASPNETMENU】点击菜单项弹出新窗口
hm$X]H`uMX
^{@![' 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
pe0x""K <?xml version="1.0" encoding="GB2312"?>
Ft{[ae?4 <MenuData ImagesBaseURL="images/">
Si}HX!s <MenuGroup>
t-%Q`V=[ <MenuItem Label="内参信息" URL="Infomation.aspx" >
I{0k <MenuGroup ID="BBC">
^S)TO}e <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
[(LV <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
.~lKBkS`! ......
wz8PtfZ }$su4A@0 最好将你的aspnetmenu升级到1.2版
t/i5,le C2e.2)y 21.读取DataGrid控件TextBox值
F-Z%6O,2 foreach(DataGrid dgi in yourDataGrid.Items)
?^HfNp9 {
OIb TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
_K2?YY(#> tb.Text....
"T/>d%O1b }
lw%?z/HDf 8am`6;O:! 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
!,$i6gm 1nj(hg 〖思归〗
`<\}FS`' <asp:TemplateColumn HeaderText="数量">
beY=g7| <ItemTemplate>
Ru!He,k7 <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
6V9doP ]i onkeyup="javascript:DoCal()"
&`|:L(+ />
n
?[/ufl Zzua17
<asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
&6 -k#r </ItemTemplate>
4tA_YIv
</asp:TemplateColumn>
Die-@z|Y $ls[|N:y0l <asp:TemplateColumn HeaderText="单价">
C@y8.#l <ItemTemplate>
AS!6XT <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
5,"l0nrk onkeyup="javascript:DoCal()"
wVs.Vcwr
/>
>r5P3G1 !%mAh81{&/ <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
$Byj}^ ;1 iSRpfU </ItemTemplate>
qKS;x@ </asp:TemplateColumn>
Cz#Z <: T4e\0.If <asp:TemplateColumn HeaderText="金额">
JF9yVE - <ItemTemplate>
\ b8sG"G <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
!#ri5{od </ItemTemplate>
=Yo1v=wxN </asp:TemplateColumn><script language="javascript">
eS/B24;* function DoCal()
tU wRE|_ {
G>qZxy`c var e = event.srcElement;
".*x!l0y7 var row = e.parentNode.parentNode;
co 4h*?q var txts = row.all.tags("INPUT");
;E2>Ovv if (!txts.length || txts.length < 3)
YEu1#N return;
[t\B6XxT }n,Zl>T9 var q = txts[txts.length-3].value;
Myat{OF var p = txts[txts.length-2].value;
dth&?/MERL fpyz' if (isNaN(q) || isNaN(p))
XK(`mEi
return;
+KGZHO! =]R3& ]#n q = parseInt(q);
0X2@CPIFf p = parseFloat(p);
ij5g^{_T;8 8$N8}q% txts[txts.length-1].value = (q * p).toFixed(2);
`L;eba }
@\_x'!R </script>
TjK{9A YKZrEP4^ 7)rWw<mY l7(!`NPbC !33#. @[ 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。
gCd`pi
8 page_load
`[#x_<\t page.smartNavigation=true
:m=m}3/: OIHz I2{ 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 ?
?{"mP 'dD private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
:yT-9Ze%q {
$5`!Z%>/ for(int i=0;i<e.Item.Cells.Count-1;i++)
+Z2MIC|Ud if(e.Item.ItemType==ListItemType.EditType)
/T^ JS {
F,Xo|jjj e.Item.Cells.Attributes.Add("Width", "80px")
Hk_y/97OO }
v}G]X Z8 }
z7.|fE)<6 _?7#MWe& 26.对话框
C9n}6Er=, private static string ScriptBegin = "<script language=\"JavaScript\">";
jt~Qu- private static string ScriptEnd = "</script>";
5pNY)>]t= '+'CbWgY public static void ConfirmMessageBox(string PageTarget,string Content)
<<9Va. {
d<w~jP\ string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
( fD
;g9 'J*<iA*W ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
BIaDY<j90 h.rD}N\L Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
?8dVH2W. ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
y<R= //Response.Write(strScript);
PeX1wK%f }
!2CL1j0( Mkp/0|Q* 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
D;GD<zC] xieP "6 1.1 取当前年月日时分秒
OkAK currentTime=System.DateTime.Now;
iVtl72O 2s*#u<I 1.2 取当前年
~pk(L[G int 年= DateTime.Now.Year;
HWns.[ V=I"-k}RL 1.3 取当前月
&WXY 'A= int 月= DateTime.Now.Month;
E9j+o y T&Xl'=/ 1.4 取当前日
>>l`,+y int 日= DateTime.Now.Day;
uD_v! X#xFFDzN 1.5 取当前时
%sh>;^58P int 时= DateTime.Now.Hour;
&MmU Hi!Jj 1.6 取当前分
80}+MWdo int 分= DateTime.Now.Minute;
"}WJd$ ~Vh(6q.oT 1.7 取当前秒
.Hhh i int 秒= DateTime.Now.Second;
pN6%&@) = x"kjs.d7[< 1.8 取当前毫秒
J;t 7&Zpe int 毫秒= DateTime.Now.Millisecond;
}F6<w{| EO|:FcW 28.自定义分页代码:
9Ywpej*+ JuRH>` 先定义变量 :
pnyWcrBf public static int pageCount; //总页面数
09KcKhFB public static int curPageIndex=1; //当前页面
%U7.7dSOI; psh^MX)Q 下一页:
yZ]:y-1 if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
RT/o$$ {
oq/G`{`\ DataGrid1.CurrentPageIndex += 1;
gC%G;-gm curPageIndex+=1;
Agh`]XQ2 }
4nfu6Dq )O+}T5c= bind(); // DataGrid1数据绑定函数
lv0nEj8F -F&U 上一页:
cHA7Kg ! if(DataGrid1.CurrentPageIndex >0)
Z#d&|5Xj {
?rVy2! DataGrid1.CurrentPageIndex += 1;
eO=s-]mk curPageIndex-=1;
h+.{2^x }
=rA~7+} /gcEw!JS bind(); // DataGrid1数据绑定函数
!2\ r LN gyHHoZc3 直接页面跳转:
:nHKl
int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
/StTb, 5FVndMM#y if(a<DataGrid1.PageCount)
:%&Q-kk4! {
M69
w- this.DataGrid1.CurrentPageIndex=a;
vD/NgRBww }
nL@KX> M4LP$N bind();
:,;K>l^U l:;PXy6) 29.DataGrid使用:
FLal}80.o: ~fl@ 2 添加删除确认:
sKz`aqI private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
>%p{38 {
!1T\cS#1% foreach(DataGridItem di in this.DataGrid1.Items)
MfO:m[s {
7`vEe'qz if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
O-]mebTvw {
qs\2Z@; ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
9Gy }
+:=(#Y }
(YBMsh }
%V&n*3 ~0$NJrUy 样式交替:
-\ZcOXpMx= ListItemType itemType = e.Item.ItemType;
5*PYT=p}
`0H g y= if (itemType == ListItemType.Item )
c$S{^IQ {
cEW0;\$ e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
2M<R(W!& e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
wS+V]`b }
<H3ezv1M else if( itemType == ListItemType.AlternatingItem)
Wc3kO'J {
fy@avo9 e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
Dih6mTP{ e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
0`.^MC? }
^m#-9- ` R_]{2~J+ 添加一个编号列:
iUMY!eqp DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
K/m3 DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
Sw^X2$h 65z" for(int i=0;i<dt.Rows.Count;i++)
^
&E}r{? {
kp?w2+rz dt.Rows["number"]=(i+1).ToString();
1XG!$4DW }
M)*\a/6?{ ERwHLA DataGrid1.DataSource=dt;
V$0dtvGvH DataGrid1.DataBind();
I`[i;U{CK i|
\6JpNA: DataGrid1中添加一个CheckBox,页面中添加一个全选框
IJTtqo private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
Qjx?ri// {
s?8<50s foreach(DataGridItem thisitem in DataGrid1.Items)
9[!,c`pw {
u&G.4QQF ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
(>J4^``x= }
}'r[m5T }
!-s!f&_ ,1'4o3 将当前页面中DataGrid1显示的数据全部删除
8u[-'pV! foreach(DataGridItem thisitem in DataGrid1.Items)
i'stw6*J {
,F&g5' if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
tg^sCxz9] {
RMO,ZVq string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
]# t6Jwk Del (strloginid); //删除函数
gVeEdo`$< }
xI,2LGO }
Sxjub&= l4T7'U>` 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)
FZreP.2)! vVGDDDz/ 在Application_Start中添加以下代码:
_%'},Xd.z Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
gTRF^knrY AppSettings["ConnStr"].ToString();
'
|-JWH 'mI'dG 31. 变量.ToString()
'=][J_ yA{W 字符型转换 转为字符串
R+gz<H.Q 12345.ToString("n"); //生成 12,345.00
f3`7tA 12345.ToString("C"); //生成 ¥12,345.00
2Q;9G6p 12345.ToString("e"); //生成 1.234500e+004
V"cKJ;s 12345.ToString("f4"); //生成 12345.0000
+C7 ~b~ % 12345.ToString("x"); //生成 3039 (16进制)
s
{^yj 12345.ToString("p"); //生成 1,234,500.00%
+_-bJo2a :akT 'q# 32、变量.Substring(参数1,参数2);
S"9zc
,] "#mBcQ;QLV 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);
S9HwIH\m }68i[v9Njk 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)
MX>[^}n <SCRIPT language="javascript">
`1 :{0p2q <!--
*<1r3! function gook(pws)
@aJ!PV'ms {
EpQ8a[<-3 frm.submit();
`3p~m, }
`y#UJYXQE //-->
3D?sL!W %s19KGpA </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
z;@*r}H <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
9Fn\FYUq <tr>
Jk,;JQ <td>
= k\J< <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
8p[)MiC5W^ <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
Vh>Z,()>>@ <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
p~LrPWHSTP n~VD uKn9 <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
KZ~*Nz+H2 <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
R$zH] 6q
2_WX </td>
`6+"Z=: #c^^=Z </tr>
YBh'EL}P r'gOVi4t1* </form>
{v3P9s( yDNOt C| 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
HSq}7S&U A 7[:5$ 下面是获取用户输入的登陆信息的代码:
'vN G(h#%d string name;
)8g(:`w name=Request.QueryString["EmailName"];
A$6$,h $1ndKB8)`J try
+SJd@y@fR {
h=-"SW int a=name.IndexOf("@",0,name.Length);
q+,Q<2J f_user.Value=name.Substring(0,a);
Jmx Ko+- f_domain.Value=name.Substring(a+1,name.Length-(a+1));
4@xE8`+bG f_pass.Value=Request.QueryString["Psw"];
1?Z4K/ }
;;&}5jcV -W>'^1cR catch
F-6c_! {
\TU3rk&X Script.Alert("错误的邮箱!");
y(K"
-? Server.Transfer("index.aspx");
~i 7^P9 }