1. 打开新的窗口并传送参数:
|j/Y#.k;{0 6f0o' 传送参数:
&B:L9^ response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
AEf[:]i] *Q2 oc:6 接收参数:
N? S;v&q+ string a = Request.QueryString("id");
1fJ~Wp @1 string b = Request.QueryString("id1");
~U7Bo(EJp [[w-~hHH - 2.为按钮添加对话框
3y$6}Kp4? Button1.Attributes.Add("onclick","return confirm(’确认?’)");
2xi;13? button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
_8SB+s* c#u_%* 3.删除表格选定记录
/J"fbBXwY int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
X%99@ qv string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
~c+=$SL-= g"!cO^GkT 4.删除表格记录警告
P1L+Vnfu private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
mo
tW7|p.e {
~T9QpL1OJ switch(e.Item.ItemType)
sm?b,T/ {
8)s0$64Ra case ListItemType.Item :
fGH)Fgo` case ListItemType.AlternatingItem :
usK P9[T$ case ListItemType.EditItem:
6]GHCyo TableCell myTableCell;
?|NsaW myTableCell = e.Item.Cells[14];
L>Ze*dt LinkButton myDeleteButton ;
U7fNA7#x" myDeleteButton = (LinkButton)myTableCell.Controls[0];
eC 2~&:$L myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
-d2) break;
8.%wnH default:
~kpa J'm break;
`CL\- }
n0K+/}m ?|`n&HrP }
03 iy[~Y2 +|<bb8% 5.点击表格行链接另一页
KqBiF]Q private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
]
fA5D)/m< {
8"LM:0x //点击表格打开
Uw5&.aqn.b if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
S,,Wb&A$ e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
cN2Pl%7 }
+?Q HSIQo 'm<L}d 双击表格连接到另一页
c/F!cW{z^ .'l3NV^{ 在itemDataBind事件中
wsR\qq if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
bz,"TG[ {
vUL@i'0&o string OrderItemID =e.item.cells[1].Text;
#K` [XA ...
@QYCoEU8J e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
39~WP$GM }
7bVKH[ zT!.5qd 双击表格打开新一页
LF(S"Of if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
OzH\YN {
.345%j string OrderItemID =e.item.cells[1].Text;
g<w1d{Td ...
Mx3f T>? e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
n"~K",~P }
r'|ei , tqt~F2u ★特别注意:【?id=】 处不能为 【?id =】
C.}ho.}
r 6.表格超连接列传递参数
ne[H `7c <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
QY\'Uu{ <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
8H3O6ro q}E'x/s2m 7.表格点击改变颜色
"HJQAy?W
if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
O!F"w!5@ {
mEb`ET| e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
_jVJkg)] this.style.color=’buttontext’;this.style.cursor=’default’;");
M%!j\}2A }
daf-B- xi.QHKBZaH 写在DataGrid的_ItemDataBound里
"`pg+t& if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
UU#$Kt*frR {
~ihi!u%~} e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
@ L/i this.style.color=’buttontext’;this.style.cursor=’default’;");
k?Zcv*[)D+ e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
*JWPt(bnI }
[H2su|rBI` &k(tDP h`tf!M D] 8.关于日期格式
*@YQr]~
; i-sm 9K'ns 日期格式设定
X`]>J5 DataFormatString="{0:yyyy-MM-dd}"
@3I?T
Q1 K=P LOC5 我觉得应该在itembound事件中
1u*
(=! e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
?J"Y4,{ |A H@W#7j 9.获取错误信息并到指定页面
| fn%!d`2 `KP}pi\ 不要使用Response.Redirect,而应该使用Server.Transfer
L$ju~0jl)% ]/mRMm9"3h e.g
(Q|Y*yI // in global.asax
S~ y.>X3"P protected void Application_Error(Object sender, EventArgs e) {
8ePzUc\# if (Server.GetLastError() is HttpUnhandledException)
2bpFQ8q Server.Transfer("MyErrorPage.aspx");
+C4NhA2 [} %=&B //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
(j}edRUnB }
^;EwZwH[ p"n3JV.~k+ Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
ZZ].h2=K tQ2S*]"f 10.清空Cookie
\=@4F^U7` Cookie.Expires=[DateTime];
ZD8E+]+ Response.Cookies("UserName").Expires = 0
fydQaxCND O$Dj_R# 11.自定义异常处理
K$
|!IXs //自定义异常处理类
#XAH`L\ using System;
3^F1 hCB using System.Diagnostics;
[]H0{a2{< 42
rIIJ1A namespace MyAppException
p?+;[!: {
gL wNHS /// <summary>
.1""U
'] /// 从系统异常类ApplicationException继承的应用程序异常处理类。
I#CS;Yh95 /// 自动将异常内容记录到Windows NT/2000的应用程序日志
v/G^yZa /// </summary>
1h?:gOig public class AppException:System.ApplicationException
ze#ncnMo {
(/J %Huy public AppException()
{?uswbk. {
V} t8H if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
&. "ltB }
%VgK::)r zm^5WH public AppException(string message)
bg,VK1 {
h&IF?h LogEvent(message);
9CHn6 v ~) }
toC|vn&P !%G;t$U=M public AppException(string message,Exception innerException)
"I45=nf {
ZF;s`K) LogEvent(message);
$s5D/60nO if (innerException != null)
(7}Zh|@W {
ltmD=-]G_ LogEvent(innerException.Message);
g+u5u\k }
!Ka~X!+\ }
_v=zFpR R&1xZFj //日志记录类
[{rne2sA using System;
@-}!o&G0 using System.Configuration;
LwEc*79 using System.Diagnostics;
v!rOT/I using System.IO;
coc:$Sr% using System.Text;
<p8>"~R using System.Threading;
v1Jg8L= \!'K#%]9 namespace MyEventLog
wHhIa3_v {
4S,/Z{ J. /// <summary>
0Ewt
>~n /// 事件日志记录类,提供事件日志记录支持
=zKbvwe%X /// <remarks>
lyrwm{& /// 定义了4个日志记录方法 (error, warning, info, trace)
h>jp.%oOu /// </remarks>
F5f1j]c /// </summary>
T
^z Mm public class ApplicationLog
?nx
1{2[ {
m?Dk(DJ /// <summary>
82Nw6om6i /// 将错误信息记录到Win2000/NT事件日志中
!fG`xZ~ /// <param name="message">需要记录的文本信息</param>
B?<Z(d7 /// </summary>
KXga{]G: public static void WriteError(String message)
I'16- {
JB\BP$ap WriteLog(TraceLevel.Error, message);
{Ng HH]]O }
gT4H?
#UB p4{3H+y /// <summary>
9w,u4q
/// 将警告信息记录到Win2000/NT事件日志中
h2Jdcr#@FF /// <param name="message">需要记录的文本信息</param>
1'g{tP"d /// </summary>
O\qY?) public static void WriteWarning(String message)
"J6aU {
>iB-gj}>X WriteLog(TraceLevel.Warning, message);
f@= lK?Pfh }
9 k>=y n ^5![tTJ /// <summary>
H>2f M^ /// 将提示信息记录到Win2000/NT事件日志中
qfzT8-Y /// <param name="message">需要记录的文本信息</param>
T~'9p`IW /// </summary>
}]?U.
]- public static void WriteInfo(String message)
t#[u
X? {
j{a3AEmps WriteLog(TraceLevel.Info, message);
.Qeml4(`3 }
yS:1F
PA$_ /// <summary>
-#?p16qz5 /// 将跟踪信息记录到Win2000/NT事件日志中
P&@[ j0 /// <param name="message">需要记录的文本信息</param>
)<1}`9G /// </summary>
?*8HZ1m# public static void WriteTrace(String message)
pu*vFwZ {
nob^
I5? WriteLog(TraceLevel.Verbose, message);
j?n:"@!G/ }
Bswd20(w hq^@t6!C\m /// <summary>
:+>:>$ao /// 格式化记录到事件日志的文本信息格式
|.Pl[y /// <param name="ex">需要格式化的异常对象</param>
MO$dim> /// <param name="catchInfo">异常信息标题字符串.</param>
/RmHG
H! /// <retvalue>
~|~j01# /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
|O]oX[~ /// </retvalue>
){oVVLs /// </summary>
NK@G0p~O public static String FormatException(Exception ex, String catchInfo)
\o j#*aL^ {
.1F^=C.w StringBuilder strBuilder = new StringBuilder();
@pD']=d}t if (catchInfo != String.Empty)
L){rv)?=" {
:bA@
u> strBuilder.Append(catchInfo).Append("\r\n");
,JcQp=g }
SAEr $F^ strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
a,U =irBA return strBuilder.ToString();
^Q?I8,4} }
7^~pOFdH ?_F,HhQ /// <summary>
oIM] /// 实际事件日志写入方法
^E7>!Lbvx /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
D n?P~% /// <param name="messageText">要记录的文本.</param>
B94mh /// </summary>
nD+vMG1~w private static void WriteLog(TraceLevel level, String messageText)
3a4 ]{ {
p5~;8Q7 try
?~aM<rcZ {
<L__;j1Wx EventLogEntryType LogEntryType;
OZ q/'* switch (level)
B*owV% {
<&o
`T4 case TraceLevel.Error:
F~ n}Ep~1 LogEntryType = EventLogEntryType.Error;
Nky%v+r break;
V\kf6E case TraceLevel.Warning:
e3wFi,/@ LogEntryType = EventLogEntryType.Warning;
y )v'0q break;
id.o)= case TraceLevel.Info:
f#l/N%VoBZ LogEntryType = EventLogEntryType.Information;
&Sc}3UI/F break;
%xR;8IO case TraceLevel.Verbose:
'7W?VipU LogEntryType = EventLogEntryType.SuccessAudit;
HPT9B?^ break;
n\ma5"n0=\ default:
HFx8v!^5N LogEntryType = EventLogEntryType.SuccessAudit;
^AD/N|X^ break;
)*^PMf }
~2~KcgPsq 1C=}4^Pu EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
oj<.axA, //写入事件日志
KTk%Np eventLog.WriteEntry(messageText, LogEntryType);
$Tq-<FbM)
c*_I1}l }
/
GJ"##< catch {} //忽略任何异常
5-w6(uu }
oa`,|dA" } //class ApplicationLog
b9OT~i=S| }
RH. oo& -^;G^Uq6= 12.Panel 横向滚动,纵向自动扩展
e9q/[xMi <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
-b(:kAwStk [(`T*c.#.X 13.回车转换成Tab
E+"INX7 <script language="javascript" for="document" event="onkeydown">
R6)p4#|i if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
N:clwmo event.keyCode=9;
s+^o[R
T3 </script>
X?Omk, ' i2$U##-ro] onkeydown="if(event.keyCode==13) event.keyCode=9"
r,MgIv(L ~@bCSOIy 14.DataGrid超级连接列
#joU}Rj| DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
$&k2m^R< Ajq;\-: 15.DataGrid行随鼠标变色
X&M4c5Li private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
akBR"y:~:H {
,h5.Si> if (e.Item.ItemType!=ListItemType.Header)
60teD>Eh, {
ui7 0| e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
UY{
Uo@k9x e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
`U!eh1*b }
ahS*YeS7 }
',6QL4qV/ X'jEI{1w 16.模板列
V uJth
<ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
HC4ad0Gs+{ <ITEMTEMPLATE>
,Xk8{= <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
.(CzsupY_q </ITEMTEMPLATE>
\D, 0 </ASP:TEMPLATECOLUMN>
p`Omcl~Q lEZ[0oa <ASP:TEMPLATECOLUMN headertext="选中">
<s+=v! <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
zi[bpa17W <ITEMTEMPLATE>
%r6~5_A <ASP:CHECKBOX id="chkExport" runat="server" />
A0O$B7ylQ </ITEMTEMPLATE>
(rZq0* <EDITITEMTEMPLATE>
in#qV <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
{E6b/G?Q
</EDITITEMTEMPLATE>
)@1_Dm@0b </ASP:TEMPLATECOLUMN>
IOTHk+w mkj`z 后台代码
_h@7>+vl~ protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
*M+:GH/5 {
I g-VSQ //改变列的选定,实现全选或全不选。
Sqc*u&W CheckBox chkExport ;
%>xW_5;Z if( CheckAll.Checked)
_rs!6tp {
L V33vy foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
}#EiL
!Pv {
Gu*;z% b2 chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
X-oou'4< chkExport.Checked = true;
79:x>i= }
X@af[J[cQ }
09|d< else
kfm8F8sxl {
b*dRNu foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
j*W]^uT, {
>?U(w< chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
[_-CO}> chkExport.Checked = false;
_jU6[y|XLh }
D\j1` }
L\y,7@1%AT }
nF
A7@hsm _u{D #mmO 17.数字格式化
@YpA'cX7 h5Qxa$Oq 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
.HZYSY:X <%#Container.DataItem("price","{0:¥#,##0.00}")%>
:Nc~rOC_ &giJO-^
f int i=123456;
j]Rl1~+M string s=i.ToString("###,###.00");
'cH),~ z z?j~ 2K<4 18.日期格式化
`'Z ;+h] !R{L`T0 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
[u)^QgP l4;/[Q>Z 显示为: 2004-8-11 19:44:28
]C)PZZI=' eSa ]6 我只想要:2004-8-11 】
TrkoLJmB <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
: ]CZS ^U~YG=!ww 应该如何改?
2{+\\.4Evk $D9JsUij 【格式化日期】
,"j|0Q YroKC+4"i 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
[2)Y0; [" bmt2~! 【日期的验证表达式】
,p$1n; ^>9M2O['!s A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
x:sTE u@ ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
;zSh9H InPq1AH B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
J]N-^ld\\ ^\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^U{I?gQ h"wXmAf4% 【大小写转换】
\P{VJ^)0 HttpUtility.HtmlEncode(string);
Vs{|:L+ HttpUtility.HtmlDecode(string)
= UTv G9Xrwk<g4 19.如何设定全局变量
S1&6P)X.Za !n)2HDYhx, Global.asax中
hz\7Z+ $L_ lg1?g)lv Application_Start()事件中
~2rZL SwSBQq%h]M 添加Application[属性名] = xxx;
_4.`$n/Z \n:' >:0X! 就是你的全局变量
bhuA,} 7*@qd& 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
Bz7T1B&to 7z F29gC HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
Zf?>:P &:'Uh
W-t 【ASPNETMENU】点击菜单项弹出新窗口
E >SnH
\'E%ue_<9 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
|3"'>*
J <?xml version="1.0" encoding="GB2312"?>
7c+TS-- <MenuData ImagesBaseURL="images/">
wCn W]<+ <MenuGroup>
HRPTP+ <MenuItem Label="内参信息" URL="Infomation.aspx" >
nuKjp Ap! <MenuGroup ID="BBC">
FS1<f: <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
Bv!j.$0d{ <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
}@a_x,O/x} ......
9{xP~0g uN6TV*]: 最好将你的aspnetmenu升级到1.2版
HAN#_B1. \t^q@}~0Wz 21.读取DataGrid控件TextBox值
#Du1(R foreach(DataGrid dgi in yourDataGrid.Items)
0P%(4t$pd {
IY,&/MCh TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
N55;oj_K tb.Text....
1 ljgq]($ }
V><5N;w 0'z$"(6D 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
~G5)ya- 4wBMBCJ;P 〖思归〗
M<g>z6 <asp:TemplateColumn HeaderText="数量">
9s5CqB <ItemTemplate>
ldi'@^ <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
J%3S3C2*m onkeyup="javascript:DoCal()"
K^s!0[6 />
X#gZgz =' UiaY0 .D <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
|2{y'?, </ItemTemplate>
}|{yd03+ </asp:TemplateColumn>
a|TP 2m [
o3}K <asp:TemplateColumn HeaderText="单价">
9[6xo! <ItemTemplate>
$>8+t>| <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
_@jl9<t=_ onkeyup="javascript:DoCal()"
[
ecYpE< />
/Q})%j1S0 ak0KrVF <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
.5KRi6 !-LPFy> </ItemTemplate>
yhgHwES" </asp:TemplateColumn>
&hyr""NkAm >vt#,8VAN <asp:TemplateColumn HeaderText="金额">
tlI3jrgw <ItemTemplate>
H@,jNIh~h <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
'hf-)\Ylf </ItemTemplate>
SYeCz(H>d </asp:TemplateColumn><script language="javascript">
%L<VnY#%u function DoCal()
FyQ {
m"X0Owx var e = event.srcElement;
p,$1%/m var row = e.parentNode.parentNode;
#CHsH{d var txts = row.all.tags("INPUT");
qW$IpuK if (!txts.length || txts.length < 3)
lmQ!q>N return;
y 3c]zDjV (#X/sZQh var q = txts[txts.length-3].value;
-O^ b var p = txts[txts.length-2].value;
QYyF6ht=! ATk>:^n if (isNaN(q) || isNaN(p))
9\R:J"X return;
Pm#B'N#*N| dxUq5`#G, q = parseInt(q);
(s,Nq~O p = parseFloat(p);
-`&4>\o2Lx Xe:B* txts[txts.length-1].value = (q * p).toFixed(2);
s80:.B }
DU({Ncge </script>
aq0J }4U M)Vz9, U$ _?T-x O]4!U#A ZgZ}^x 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。
mQ('X~l page_load
1;080|,s page.smartNavigation=true
yL_-w/a *8kg6v% 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 ?
_+wv3?
c" private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
JrOp-ug {
V[rNJf1z for(int i=0;i<e.Item.Cells.Count-1;i++)
t \Fc < if(e.Item.ItemType==ListItemType.EditType)
N@58R9P<p {
F,%qG, e.Item.Cells.Attributes.Add("Width", "80px")
:BC0f9 }
xAjLn*d|N }
HI,1~Jw+ p! zC 26.对话框
o3]B/ private static string ScriptBegin = "<script language=\"JavaScript\">";
Q`,D#V${D private static string ScriptEnd = "</script>";
X>wB=z5PXK G>YJ3p7 public static void ConfirmMessageBox(string PageTarget,string Content)
)[~ #j6 {
fP&F$"o8 string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
P@PZ m aVz<RS ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
{5#P1jlT 8rGW G Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
(X)$8y ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
"of (,p //Response.Write(strScript);
rf@/<Wu }
c^6v7wT5 &oWWc$ 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
*O)_D
bj 6pLB`1[v 1.1 取当前年月日时分秒
HvKueTQ currentTime=System.DateTime.Now;
l(v$+ GH7{_@pv8 1.2 取当前年
h$f/NSct2 int 年= DateTime.Now.Year;
e%R+IH5i
uZ]B ?Z%y# 1.3 取当前月
>tr_Ypfv,c int 月= DateTime.Now.Month;
2 8f-8B Av.(i2 1.4 取当前日
+y6|Nq int 日= DateTime.Now.Day;
(|'w$ E&{*{u4 1.5 取当前时
>-s}1*^=oD int 时= DateTime.Now.Hour;
c72Oy+# Dr6Br<yi 1.6 取当前分
$\81WsL' int 分= DateTime.Now.Minute;
1.p?P]
. ~H@':Mms.h 1.7 取当前秒
Rb#Z'1D'G int 秒= DateTime.Now.Second;
l
YH={jJ wju~ 5 1.8 取当前毫秒
>:W)9o int 毫秒= DateTime.Now.Millisecond;
D4
{gt\V smIZ:L% 28.自定义分页代码:
pr;<n\Y{ g#9w5Q 先定义变量 :
XhWMvme public static int pageCount; //总页面数
0WF(Ga/o public static int curPageIndex=1; //当前页面
(pi7TSJ n\,TW&3 下一页:
L9Fx
Lw41 if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
<Ks?g=K- {
z6Su` DataGrid1.CurrentPageIndex += 1;
u%XFFt5 curPageIndex+=1;
Ct }"o }
KS*W<_I a(x[+ El bind(); // DataGrid1数据绑定函数
qgI
Jg6x/} Qi=rhN` 上一页:
aI8wy-3 I if(DataGrid1.CurrentPageIndex >0)
3C_g)5
_: {
82O`<Ci DataGrid1.CurrentPageIndex += 1;
\RQ5$!O curPageIndex-=1;
LTzf&TZbx5 }
;Ic3th%u lz{>c.Ll[ bind(); // DataGrid1数据绑定函数
B1nb23SY T <>j,Q 直接页面跳转:
I=(O,*+PQ int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
{H])Fob ZmmuP/~2K if(a<DataGrid1.PageCount)
A:
0]
n {
*\S>dhJ4 this.DataGrid1.CurrentPageIndex=a;
g-+p(Ll| }
xZ;';}&pj e% 5! bind();
*
+OAc`8 & RROra 29.DataGrid使用:
J,7_5V@jJ 'O{hr0q} 添加删除确认:
1d\K{ 7i# private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
5.GBd_; {
;H:qDBH foreach(DataGridItem di in this.DataGrid1.Items)
Z: Kob
b {
$<ZX};/D if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
f^$\+H"W {
A=XM(2{aN ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
kY_UY~E }
HnY: gu }
YLFTf1G9 }
%'g/4I BwEL\*$g 样式交替:
2ZE4^j| ListItemType itemType = e.Item.ItemType;
VJ=!0v \[>Rt if (itemType == ListItemType.Item )
Z>M*!mQi {
u"|.]r e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
Q'A->I<;_s e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
~4 \bR }
ait/|a else if( itemType == ListItemType.AlternatingItem)
GbL,k?ey {
JT_#>', e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
7XwFO0== e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
DD~8:\QD }
@NyCMe;] #vDe/o+= 添加一个编号列:
lT(MywNsg DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
\7/xb{z| DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
tGf 5|>jz ` for(int i=0;i<dt.Rows.Count;i++)
\}<nXn! {
#v~5f;[AAs dt.Rows["number"]=(i+1).ToString();
Z>X-u eV }
3gGF?0o `[:f;2(@ DataGrid1.DataSource=dt;
|5FyfDaFBX DataGrid1.DataBind();
^$T>3@rDB H7\EvIM= DataGrid1中添加一个CheckBox,页面中添加一个全选框
@|cas|U.r private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
4)"jg[ {
XS1>ti|< foreach(DataGridItem thisitem in DataGrid1.Items)
goxgJOiB {
CF$^we ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
~5JXY5*o }
R"82=">v }
9pk<=F k|g~xmI; 将当前页面中DataGrid1显示的数据全部删除
-Ol/r=/& foreach(DataGridItem thisitem in DataGrid1.Items)
H>W A?4 {
:Tjo+vw7$H if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
+:^tppg {
e<IT2tv>u string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
evn ]n Del (strloginid); //删除函数
v4 c_UFEh< }
X#pE!mT }
yTmoEy. q Dpof~o,f 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
.ipYZg'V %+`$Lb?{ 在Application_Start中添加以下代码:
3UBG?%!$f Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
cl{;%4$9 AppSettings["ConnStr"].ToString();
c"fnTJXr79 'KXvn0 31. 变量.ToString()
:PjHs Np;^ DMf:u`< 字符型转换 转为字符串
1'}~;?_ 12345.ToString("n"); //生成 12,345.00
nC2A&n