1. 打开新的窗口并传送参数:
3^!Y9$y1 sVT:1 kI 传送参数:
x-E@[= response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
,)u1r3@I^ NW=gi
qB 接收参数:
eMHBY6<~= string a = Request.QueryString("id");
5t=7- string b = Request.QueryString("id1");
N [qNSo| ~<Eu
@8+_ 2.为按钮添加对话框
+f){x9
: Button1.Attributes.Add("onclick","return confirm(’确认?’)");
l% \p button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
Z'!Ii+'6 h#:_GNuF 3.删除表格选定记录
rt8"U<~ int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
@zs.M-F string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
)
dB?Ep| @~ 6,8nQ 4.删除表格记录警告
3*8m!gq7s private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
$j(laD#AR {
Xtk3~@ switch(e.Item.ItemType)
u{J\X$] {
}uFV\1 case ListItemType.Item :
Q8h0:Q case ListItemType.AlternatingItem :
y8.3tp case ListItemType.EditItem:
RKb{QAK!v TableCell myTableCell;
r"4&.&6 myTableCell = e.Item.Cells[14];
z*ly`-! LinkButton myDeleteButton ;
r-e-2y7 myDeleteButton = (LinkButton)myTableCell.Controls[0];
HrK7qLw7 myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
PP{s&( break;
z(dDX%k@ default:
uY;7&Lw
y1 break;
tBjMm8lgb }
;659E_y> N"[r_! }
P0c6?K6 j
qZ<|A%WQ 5.点击表格行链接另一页
@v~<E?Un private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
jJ7 "9 {
iezY+`x4 //点击表格打开
os[i if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
*|B5,Ey e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
@W.0YU0|J }
(nnIRN<}$ undH{w= 双击表格连接到另一页
Hd ${I", ^!7|B3` 在itemDataBind事件中
{fxytiH8 if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
cnL@j_mb {
9jJ:T$} string OrderItemID =e.item.cells[1].Text;
92D :!C ...
4c,{Js e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
[pzo[0G 'v }
yP "D~u _zG[b/:p 双击表格打开新一页
rPx:o}&< if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
i:sb_U+M {
:pNu$%q string OrderItemID =e.item.cells[1].Text;
!{S HlS ...
^$;5ZkQy e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
O[5u6heNMr }
xG8z4Yu `{+aJ0<S ★特别注意:【?id=】 处不能为 【?id =】
i{MzQE+_^ 6.表格超连接列传递参数
G|LcTV <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
iUOGuiP <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
+8 }p-<a ~PA6e+gmL 7.表格点击改变颜色
%&&;06GU} if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
v]U0@#/p {
\heQVWRl e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
e$4$G<8;y this.style.color=’buttontext’;this.style.cursor=’default’;");
lQt* LWd[ }
v0W/7?D 8gXf4A(N 写在DataGrid的_ItemDataBound里
#TD0)C/ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
oF=UjA {
o]WG8Mo- e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
:M\3.7q this.style.color=’buttontext’;this.style.cursor=’default’;");
}!1pA5x$ e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
k(R&` }
>OW>^%\!1 C^9bur/ g6(u6%MD 8.关于日期格式
(6~~e$j RrRE$g 日期格式设定
PJ'.s
DataFormatString="{0:yyyy-MM-dd}"
{PQ!o^7y ~,O}wT6q 我觉得应该在itembound事件中
{"@E_{\ e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
0|OmQ\SQ tN&_f==e 9.获取错误信息并到指定页面
+Hf Zs"x -: 8[ 不要使用Response.Redirect,而应该使用Server.Transfer
zH1:kko I;3Uzv e.g
O>Ao#_*hOb // in global.asax
"6xTh0D
protected void Application_Error(Object sender, EventArgs e) {
)+v'@]r if (Server.GetLastError() is HttpUnhandledException)
kz?m `~1 Server.Transfer("MyErrorPage.aspx");
<:Z-zQp)? a!*K)x,"< //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
<|c[
#f
}
_%6Vcy WJ
m:?, 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
_do(
s5D<c'- 10.清空Cookie
ma7@vD Cookie.Expires=[DateTime];
wwh)B92Y5 Response.Cookies("UserName").Expires = 0
A Z& ]@Ao O"~BnA`dJ 11.自定义异常处理
h;`]rK;g //自定义异常处理类
sN9
SuQ using System;
HA::(cXL using System.Diagnostics;
Ialbz\;F2% z9IJ%=R namespace MyAppException
IiRII)
{
Th\t6K~ /// <summary>
`Wy8g?d;bn /// 从系统异常类ApplicationException继承的应用程序异常处理类。
P},d`4Ty@ /// 自动将异常内容记录到Windows NT/2000的应用程序日志
T!pjv8y@R /// </summary>
a~"<lzu|$ public class AppException:System.ApplicationException
4.}J'3 . {
Ss
c3uo 0 public AppException()
~<&47'D {
Gp5=cV'k if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
R6/vhze4L2 }
Ij}k>qO/2 Rr3<ln public AppException(string message)
GUqhm$6a {
)Y:9sd8g7 LogEvent(message);
Bh*7uNM }
i%a jL *cnxp-)ub public AppException(string message,Exception innerException)
-)2sR>`A% {
A-XWG9nL LogEvent(message);
6fr@y=s2: if (innerException != null)
WG?;Z {
_ZD8/?2QV LogEvent(innerException.Message);
j,BiWgj$8 }
u"*Wo'3I| }
I:9jn" }xE}I<M //日志记录类
HLml:B[F( using System;
t,m},c(B: using System.Configuration;
(aa}0r5 using System.Diagnostics;
3(/J(8 using System.IO;
BvA09lK using System.Text;
t)hAD_sf using System.Threading;
ywS2`( y8QJ=v* B namespace MyEventLog
wqyrs|P {
4fp]z9Y /// <summary>
d#*n@@V4 /// 事件日志记录类,提供事件日志记录支持
"2~%-;c /// <remarks>
zjVQ \L /// 定义了4个日志记录方法 (error, warning, info, trace)
_RcFV /// </remarks>
s wIJmA /// </summary>
vQiKpO* public class ApplicationLog
%m5&U6 {
*He%%pk /// <summary>
OKH4n/pq /// 将错误信息记录到Win2000/NT事件日志中
+~~&FO2 /// <param name="message">需要记录的文本信息</param>
}F~4+4B^ /// </summary>
ZSo#vQ public static void WriteError(String message)
n6f {
(,5,} WriteLog(TraceLevel.Error, message);
!u;r<:g! }
:J{| /"== w6 x{<d /// <summary>
\&S-lsLY /// 将警告信息记录到Win2000/NT事件日志中
">pt,QV /// <param name="message">需要记录的文本信息</param>
@Pt,N
qj: /// </summary>
+9[/> JM public static void WriteWarning(String message)
;=?f0z< {
/QeJ#EHn WriteLog(TraceLevel.Warning, message);
j$z<wR7j0 }
]$VYzE2e 1sT%g}w@| /// <summary>
]tzO)c)w; /// 将提示信息记录到Win2000/NT事件日志中
} 9qbF+b /// <param name="message">需要记录的文本信息</param>
4CT _MAj /// </summary>
A"`^Abrm public static void WriteInfo(String message)
nbGB84 {
{ eU_ WriteLog(TraceLevel.Info, message);
.-Xp]>f, }
N4wv'OrL] /// <summary>
%bp8VR sY /// 将跟踪信息记录到Win2000/NT事件日志中
}95;qyQ$ /// <param name="message">需要记录的文本信息</param>
W_##8[r(? /// </summary>
lhk[U!># public static void WriteTrace(String message)
Y8Bc
&q} {
&%ZiI@O- WriteLog(TraceLevel.Verbose, message);
#00k7y>OyD }
![{>$Q?5
&s|a\!>l /// <summary>
$\DOy&e /// 格式化记录到事件日志的文本信息格式
J9kmIMq-C /// <param name="ex">需要格式化的异常对象</param>
9b/7~w. /// <param name="catchInfo">异常信息标题字符串.</param>
@"\j]ZEnY /// <retvalue>
!2R<T/9~ /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
(61_=,jv\h /// </retvalue>
I4%p?'i,C /// </summary>
;m;a"j5 public static String FormatException(Exception ex, String catchInfo)
t#Q" ;e {
,EAf/2C StringBuilder strBuilder = new StringBuilder();
XM+o e0:[ if (catchInfo != String.Empty)
7q' _]$ {
h27awO
Q strBuilder.Append(catchInfo).Append("\r\n");
QEavbh^S }
Zj*kHjn" strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
Aj9Onz,Lg return strBuilder.ToString();
7^fpbrj }
T\G2B*fGd $ON4nx /// <summary>
4@qKML /// 实际事件日志写入方法
^st.bzg+[ /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
wz,T7L /// <param name="messageText">要记录的文本.</param>
g"60{ /// </summary>
FAS+*GFz private static void WriteLog(TraceLevel level, String messageText)
,Tb~+z|-[ {
b)SU8z!NV& try
\,w*K'B_Y {
U%Kv}s/(F{ EventLogEntryType LogEntryType;
D*>EWlZ switch (level)
O:=%{/6&D {
n9;z= case TraceLevel.Error:
p m4g),s LogEntryType = EventLogEntryType.Error;
\WDL?(G< break;
$Vi[195]2 case TraceLevel.Warning:
T,Bu5:@# LogEntryType = EventLogEntryType.Warning;
=aWj+ggd@ break;
GJUorj& case TraceLevel.Info:
!s>AVV$;0 LogEntryType = EventLogEntryType.Information;
!T((d7; break;
H O^3v34ZO case TraceLevel.Verbose:
~{#$`o= LogEntryType = EventLogEntryType.SuccessAudit;
>t[beRcR6 break;
C+*qU default:
];-DqK' LogEntryType = EventLogEntryType.SuccessAudit;
qfO=_z ES break;
^1a/)Be{_ }
PY4RwN ad\?@>[I EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
2 kOFyD
//写入事件日志
^V
DJGBk eventLog.WriteEntry(messageText, LogEntryType);
<K~> :4c 9 >t }
a?zn>tx catch {} //忽略任何异常
>q'xW=Y
j\ }
3f u*{8.XZ } //class ApplicationLog
^J?ExMu }
hmA$gR_ *H"IW0I 12.Panel 横向滚动,纵向自动扩展
gaK m`# <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
@}
nI$x. B? Vr9H 7n 13.回车转换成Tab
S~dD ;R <script language="javascript" for="document" event="onkeydown">
fpjy[$8 if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
~wMdk9RQ event.keyCode=9;
Bs@!S? </script>
*4i)aj O8;`6r onkeydown="if(event.keyCode==13) event.keyCode=9"
fn%Gu s~ 7,i}M 14.DataGrid超级连接列
*wgHa6?+7 DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
Q}KNtNCpx 5E~?hWAv 15.DataGrid行随鼠标变色
Dq#/Uw# private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
|H:JwxH {
.6,+q2tyk, if (e.Item.ItemType!=ListItemType.Header)
LQ,RQ~! {
dLtSa\2Hn e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
+E8Itb, e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
4"OUmh9LHB }
Yy 4EM }
DCJmk6p%0 ]s*Fs]1+H 16.模板列
7eQE[C <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
j\^0BTZ <ITEMTEMPLATE>
Oz\mIVC# <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
!]%M </ITEMTEMPLATE>
t SST.o3 </ASP:TEMPLATECOLUMN>
C~do*rnM^ p!+7F\ <ASP:TEMPLATECOLUMN headertext="选中">
S?X2MX <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
dQoZhE <ITEMTEMPLATE>
T;cyU9 <ASP:CHECKBOX id="chkExport" runat="server" />
]!u12^A{ </ITEMTEMPLATE>
QHt;c <EDITITEMTEMPLATE>
49)A.Bh&! <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
@%4MFc0`! </EDITITEMTEMPLATE>
jpL'y1@Ut </ASP:TEMPLATECOLUMN>
$jt UQ1 ,BK6a'1J 后台代码
;l^4/BR protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
?;{fqeJz {
p*11aaIbp~ //改变列的选定,实现全选或全不选。
:ZP4(} CheckBox chkExport ;
[x{S ,?6 if( CheckAll.Checked)
] gN]Cw\L {
Z_Gb9 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
Xx;RH9YYz {
'%W'HqVcG1 chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
U6hT*126 chkExport.Checked = true;
]dXHjOpA }
rsbdDTy }
i|'M'^3r else
:<-,[(@bR {
=)56]ki} foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
r]XXN2[jO {
5e!YYt> chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
@ljvTgZ(X chkExport.Checked = false;
}yCw|B|a }
o8!gV/oy }
QN %w\JXS }
?/mk FDN V:M$-6jv 17.数字格式化
(S:+#v traJub 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
oo{5: <%#Container.DataItem("price","{0:¥#,##0.00}")%>
\z}/=Qgc ]!>ThBMa int i=123456;
~|j :xM(i string s=i.ToString("###,###.00");
9NH"Ik* 6E9y[ %+ 18.日期格式化
)P6n,\ -*[?E!F
【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
=AFTB<7-^ +/ A`\9QT 显示为: 2004-8-11 19:44:28
E"ju<q/Q 9/lCW 我只想要:2004-8-11 】
QjW7XVxB#N <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
RU>Hr5ebo p_!;N^y. 应该如何改?
],*^wQ Ua.7_Em 【格式化日期】
Tct[0B u$%>/cv 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
,`7;S,f `aFy2x`3 【日期的验证表达式】
<1(:W[M j @c
fR A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
M@a?j<7P,m ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
]w _,0q lYlU8l5> B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
stnyJ9 ^\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]))$
lO/<xSjNd B,SH9, 【大小写转换】
oE+s8Q HttpUtility.HtmlEncode(string);
2 }QD> HttpUtility.HtmlDecode(string)
0y$aGAUm sPCp20x:y8 19.如何设定全局变量
9`J!]WQ1[ 8ALvP}H Global.asax中
-e=p*7'] _VU/j9<+ Application_Start()事件中
,}M@Am0~ ETP}mo 添加Application[属性名] = xxx;
d*26;5~\ M\wIpRD, 就是你的全局变量
xCH,d:n= 1y5]+GU'` 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
iST r;>A Q K0 HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
&tFVW[( sQ65QJtt0A 【ASPNETMENU】点击菜单项弹出新窗口
[/#c9RA W11Wv& 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
sIuk <?xml version="1.0" encoding="GB2312"?>
aa<9%j <MenuData ImagesBaseURL="images/">
GS |sx <MenuGroup>
T`g.K6$b <MenuItem Label="内参信息" URL="Infomation.aspx" >
fI%+
<MenuGroup ID="BBC">
*uR&d;vg.8 <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
kJ6=T6s <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
n{F$,a ......
~mc7O ?3!"js
B 最好将你的aspnetmenu升级到1.2版
iw6qNV:\Z @%L4^ms 21.读取DataGrid控件TextBox值
daT[2M foreach(DataGrid dgi in yourDataGrid.Items)
kBY54pl {
zdCeOZ 6 TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
_8C0z=hz tb.Text....
$AAv%v }
<{7CS=) sDnHd9v<?t 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
&sL(|>N @;}bBHQz{p 〖思归〗
^(I4Do~} <asp:TemplateColumn HeaderText="数量">
mrDIt4$D <ItemTemplate>
jsSxjf;O <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
~U&,hFSPY onkeyup="javascript:DoCal()"
&6A'}9Ch />
yH>`Kbf T #LlHsY530N <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
>:M3!6H_~{ </ItemTemplate>
R}F0_. </asp:TemplateColumn>
!RLg[_' 6#XB'PR2p <asp:TemplateColumn HeaderText="单价">
ODK$G
[- <ItemTemplate>
Y:C7S~ <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
PF@+~FI onkeyup="javascript:DoCal()"
vS-k0g; />
._m+@Uy]H} O=}4?Xv <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
'~i}2e. wZVY h </ItemTemplate>
P0J3ci}^ </asp:TemplateColumn>
HlqvXt\ Ktg{-Xl <asp:TemplateColumn HeaderText="金额">
9I8{2] <ItemTemplate>
$: "r$7 <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
SU;PmG4 </ItemTemplate>
<v;;:RB6c </asp:TemplateColumn><script language="javascript">
I*R[8| function DoCal()
_aVrQ@9 {
OaU-4
~n; var e = event.srcElement;
mxtLcG4G var row = e.parentNode.parentNode;
6k;__@B, var txts = row.all.tags("INPUT");
*vFVXJo if (!txts.length || txts.length < 3)
FblwQ-D return;
/_E8'qlx LZm6\x var q = txts[txts.length-3].value;
@sJ[<V var p = txts[txts.length-2].value;
^"\ jIP vz:P2TkM if (isNaN(q) || isNaN(p))
Ed9ynJ~)X return;
N2uxiXpQZ= {dJC3/Rf q = parseInt(q);
!b0'd'xe p = parseFloat(p);
7''l\3mIn kH1hsDe|&y txts[txts.length-1].value = (q * p).toFixed(2);
";38vjIV }
1g6AzUXg </script>
9;s:Bo v5l)T}Nb ^'i(@{{o\ `;b@a<Wl {4Y@DQ- 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。
2yR*<yj page_load
+8 5]]}I page.smartNavigation=true
2<wuzP| -}0S%|#m 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 ?
?ix--?jl private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
-frmvNJ F {
AR AC'F0 for(int i=0;i<e.Item.Cells.Count-1;i++)
?-0k3 if(e.Item.ItemType==ListItemType.EditType)
%)T>Wn%b]v {
')t
:!#
e.Item.Cells.Attributes.Add("Width", "80px")
#}L75 }
6 ]W!>jDc }
#k8bZ?*: C4],7"Sw 26.对话框
BL<.u private static string ScriptBegin = "<script language=\"JavaScript\">";
xaSvjc\ private static string ScriptEnd = "</script>";
5bM/
v Zpg/T K public static void ConfirmMessageBox(string PageTarget,string Content)
-_Pd d[M {
Qk<W(
string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
o9G%KO&;D, :S}!i?n ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
~C=I{qzF+ TSqfl/UI Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
.MkHB0
2N ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
M3@Wb@ //Response.Write(strScript);
F<q'ivj:w }
m\`dLrPX4j zF6R\w 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
1o)@{x/pd ;hGC.}X 1.1 取当前年月日时分秒
R;&C6S currentTime=System.DateTime.Now;
By {zX,6' A<l8CWv[ 1.2 取当前年
jZeY^T)f" int 年= DateTime.Now.Year;
% eWzr ia
1Sf3 1.3 取当前月
lY/{X]T.( int 月= DateTime.Now.Month;
0xrr9X< fyPpzA0 1.4 取当前日
:8aa #bA int 日= DateTime.Now.Day;
u- PAi5&n sm5\> L3V 1.5 取当前时
Y-\hV6v6 int 时= DateTime.Now.Hour;
&Oc^LV$6 ]|62l+ 1.6 取当前分
bVmHUcR0 int 分= DateTime.Now.Minute;
5vs~8|aRo nf&PDv1 1.7 取当前秒
;q]Jm int 秒= DateTime.Now.Second;
dfY(5Wc+f GL$!JKWp 1.8 取当前毫秒
c7Sa|9*dR int 毫秒= DateTime.Now.Millisecond;
j78WPG &v|Uy}h&%1 28.自定义分页代码:
=!T@'P? !E!i`yF 先定义变量 :
|D+"+w/ public static int pageCount; //总页面数
d4KTwn5g public static int curPageIndex=1; //当前页面
I Wcgh`8 n2&*5m&$ 下一页:
v+uq if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
HE58A.Q& {
D ]Q,~Y&' DataGrid1.CurrentPageIndex += 1;
xY9#ouF curPageIndex+=1;
Fb=(FQ2Y? }
k#Qav1_ bA}9He1 bind(); // DataGrid1数据绑定函数
r(;oDdVc nVkx Q?2 上一页:
jGpSECs if(DataGrid1.CurrentPageIndex >0)
C(zgBk {
|f), dC DataGrid1.CurrentPageIndex += 1;
't:$Lx curPageIndex-=1;
K
;\~otR^ }
2Ya)I k{ MuXp*s3[ bind(); // DataGrid1数据绑定函数
O O?e8OU FsQeyh> 直接页面跳转:
@_s`@,= int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
Ie{98 Qt` hUyL if(a<DataGrid1.PageCount)
#HFB*> {
p=%Vo@*] this.DataGrid1.CurrentPageIndex=a;
s}Phw2`1U }
y4*i
V;" 8*7t1$ bind();
HT&CbEa4' &
$E[l' 29.DataGrid使用:
uQh dg4 X[/>{rK 添加删除确认:
0VsQ$4'V^ private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
?>c*[>LpZ {
x`T foreach(DataGridItem di in this.DataGrid1.Items)
]<b$k {
biAI*t if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
AsFn%8_I {
_CqVH5U? ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
_8t5rF }
I5]=\k($ }
4=/5 }
hRAI7xk 7P1G^) 样式交替:
a&:1W83 ListItemType itemType = e.Item.ItemType;
;pe1tp H$'|hUwds% if (itemType == ListItemType.Item )
U\aP {
<Sds5 d e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
+B(x:hzY9 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
{UqS q }
wM.z/r\p else if( itemType == ListItemType.AlternatingItem)
g4b-~1[S {
?LJ$:u e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
l-s%3E3 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
PPoQNW }
k=;>*:D% ;:<z hO 添加一个编号列:
|;xm-AM4r DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
A/5??3H DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
fM,!9}< e7e6b-"_2 for(int i=0;i<dt.Rows.Count;i++)
k(hYNmmo
j {
+c)"p4m dt.Rows["number"]=(i+1).ToString();
$t*>A+J }
6Gt~tlt:L %8c
<C DataGrid1.DataSource=dt;
b-*3]gB DataGrid1.DataBind();
5cc;8i Xjb 4dip DataGrid1中添加一个CheckBox,页面中添加一个全选框
#'`!*VI private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
&6]+a4 {
ed3d 6/%HR foreach(DataGridItem thisitem in DataGrid1.Items)
pypW {
8CXZ7 p ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
lT.Q)( }
t "y[ }
$;O-1# ] D$X9xtT 将当前页面中DataGrid1显示的数据全部删除
So?.V4aD_ foreach(DataGridItem thisitem in DataGrid1.Items)
8H2zMIB {
+Dvdv<+ if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
^b{ -y {
>L5fc". string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
R$>]7-N} Del (strloginid); //删除函数
/"~ D(bw0= }
4Vv~ }
cb36 ~{ N=2BrKb)o 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
|X}H&wBWo f/1soGA 在Application_Start中添加以下代码:
0 QzUcr)3+ Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
cZ8lRVaWW AppSettings["ConnStr"].ToString();
8(AI|"A"- fj
14'T 31. 变量.ToString()
L# rTJ='<hIy 字符型转换 转为字符串
uj8G6'm% 12345.ToString("n"); //生成 12,345.00
6CQ.>M:R 12345.ToString("C"); //生成 ¥12,345.00
D\~s$.6B 12345.ToString("e"); //生成 1.234500e+004
Sn o7Ru2 12345.ToString("f4"); //生成 12345.0000
R,3E_me"} 12345.ToString("x"); //生成 3039 (16进制)
sObH#/l` 12345.ToString("p"); //生成 1,234,500.00%
1/ZvcdYB UJ\[^/t 32、变量.Substring(参数1,参数2);
t>f61<27eB jwP}{mi* 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);
XwZ~pY ~ jruXl>T!U 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)
y15 MWZ <SCRIPT language="javascript">
Mx-? & <!--
73n|G/9n[ function gook(pws)
mbf'xGO {
For`rfR frm.submit();
@Feusprs }
X2RM*y| //-->
*\-R&