1. 打开新的窗口并传送参数:
4WlBQ<5 xz: 传送参数:
1_&W1o response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
O|m-[] IF&edP[V 接收参数:
v7j/_;JE; string a = Request.QueryString("id");
Ku6ndc string b = Request.QueryString("id1");
cl23y}J_? c(Xm~
'jeH 2.为按钮添加对话框
o7tlkSZ Button1.Attributes.Add("onclick","return confirm(’确认?’)");
,*Wh{) button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
m k~F@ <F}j;mX 3.删除表格选定记录
Lz9|"F"V int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
~A/vP- string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
<qoc)p=__ NxH%%>o> 4.删除表格记录警告
?/3{gOgI$` private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
{niV63$m {
1.2qh"# switch(e.Item.ItemType)
sNG 7fi.| {
O?#<kmd/) case ListItemType.Item :
heES
[ case ListItemType.AlternatingItem :
O~J f"Ht case ListItemType.EditItem:
d|tNn@jN TableCell myTableCell;
z\k6."e_& myTableCell = e.Item.Cells[14];
N#OO{`":Z` LinkButton myDeleteButton ;
$W;r S7b myDeleteButton = (LinkButton)myTableCell.Controls[0];
NHdNCHhA>- myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
|em_l$oGc break;
BN`tiPNEp default:
Nc EPPl0I break;
}!kvoV)]1 }
7Or?$ 3cqc< }
k:U%#rb; pcQzvLk 5.点击表格行链接另一页
;Uypv|xX private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
fsKZ {
^AwDZX //点击表格打开
9D5v0Qi if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
h ^zcM_ e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
d<_IC7$u> }
rb.:(d)T )\e0L/K@ 双击表格连接到另一页
yBqKldl >U:.5Tch'V 在itemDataBind事件中
/z1-4:^`A[ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
*6(/5V {
nqYarHi string OrderItemID =e.item.cells[1].Text;
V[*<^% ...
~c,+)69"T e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
RLVz "= }
hs)_h^P
d~CZ9h 双击表格打开新一页
of_Om$ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
['c*<f"
D2 {
P1qnU string OrderItemID =e.item.cells[1].Text;
p1s&
y0:d ...
od/Q"5t[p e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
mnYzn[d3U }
c=B!\J<1 }1Hy[4B(k\ ★特别注意:【?id=】 处不能为 【?id =】
Nk\/lK\ 6.表格超连接列传递参数
I~M@v59C <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
F{17K$y <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
X5)].[d k
_Bz@^J 7.表格点击改变颜色
2reQd47 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
.L3D] {
v00w
GOpW e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
lt C this.style.color=’buttontext’;this.style.cursor=’default’;");
>{h/4T@ }
0@jhNtL 3jM+j_nR 写在DataGrid的_ItemDataBound里
I(Q3YDdb if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
]EvK.ORy {
F$,i_7Z&6 e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
ibuoq X` this.style.color=’buttontext’;this.style.cursor=’default’;");
dJ,,yA* e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
=W'{xG} }
4^w`]m QL@}hw.F T;Ra/H 8.关于日期格式
enQev?8% ?Hf8<C} 3 日期格式设定
YLNJ4nE DataFormatString="{0:yyyy-MM-dd}"
\BdQ(rm L8 $+%Gvo 我觉得应该在itembound事件中
m@`
NN e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
oe1$;K>.7 &(X-b"2 9.获取错误信息并到指定页面
'CjcFP d+6-ten 不要使用Response.Redirect,而应该使用Server.Transfer
qJJ~#W) WaDdZIz4 e.g
V53iWWaFe // in global.asax
D"s
]dQ$r protected void Application_Error(Object sender, EventArgs e) {
68a if (Server.GetLastError() is HttpUnhandledException)
-]Q6Ril Server.Transfer("MyErrorPage.aspx");
Xa=oEG uPL|3ACS //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
-*0U&]T }
|s[k= /~" iFB {a?BE 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
iy,jq5uw v?#W/].C+ 10.清空Cookie
tq8rG@-C Cookie.Expires=[DateTime];
I(0 *cWO Response.Cookies("UserName").Expires = 0
a*UxRi8 Ov~>* [ 11.自定义异常处理
)tR@\G >% //自定义异常处理类
9d >AnTf&H using System;
:LMLY<8>9 using System.Diagnostics;
r=^? j?oh~7Ki namespace MyAppException
y/6%'56uF {
%@x.km3e2 /// <summary>
Jbqm?Fy4X /// 从系统异常类ApplicationException继承的应用程序异常处理类。
J*"G*x#u /// 自动将异常内容记录到Windows NT/2000的应用程序日志
>Byxb./* /// </summary>
47^R public class AppException:System.ApplicationException
UZ 6:vmcT {
Ab)X/g-I@ public AppException()
Hyz:i)2 {
+ Awo\;@, if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
~&T%u.u7 }
lX|d:HFtP "midC(rTm public AppException(string message)
^q)s {
l]__!X LogEvent(message);
u+, }
z+qrsT/?L qHra9yuSh public AppException(string message,Exception innerException)
EPGp8VGXp~ {
+G?nmXG[vj LogEvent(message);
.0u@PcE:O if (innerException != null)
C:@JLZB {
HD{2nZT LogEvent(innerException.Message);
VF] ~J=>i }
u(g0Ob }
t73" d#+ =?gDM[t^ //日志记录类
B|6_4ry0U using System;
QwgP+ M+ using System.Configuration;
"1%YtV5R{ using System.Diagnostics;
EnnE@BJ" using System.IO;
u40<>A using System.Text;
f"g-Hbl5 using System.Threading;
t7qY!S ( 8UN7(J namespace MyEventLog
d{G*1l(X {
1;N5@0%p /// <summary>
E [b6k&A /// 事件日志记录类,提供事件日志记录支持
1|/]bffg!c /// <remarks>
iF'qaqHWY4 /// 定义了4个日志记录方法 (error, warning, info, trace)
tw%z!u[a /// </remarks>
tg'2v/ /// </summary>
S{F'k;x/5 public class ApplicationLog
U%E364;F {
)xj!7:n) /// <summary>
]pP: /// 将错误信息记录到Win2000/NT事件日志中
UKBaGX:v /// <param name="message">需要记录的文本信息</param>
QO(P_az3mg /// </summary>
!f!HVna public static void WriteError(String message)
>7I"_#x1: {
A/w7( WriteLog(TraceLevel.Error, message);
55#s/`gd)^ }
B~t[Gy &d/x1= /// <summary>
lzup! `g /// 将警告信息记录到Win2000/NT事件日志中
&'d3Yt /// <param name="message">需要记录的文本信息</param>
Rt2<F-gY /// </summary>
af<wUxM0 public static void WriteWarning(String message)
-Ay=*c.4 {
<maYS2 WriteLog(TraceLevel.Warning, message);
@fO[{V }
l.`f^K=8 kcN#g-0 /// <summary>
v3/l=e?u /// 将提示信息记录到Win2000/NT事件日志中
F>/"If# /// <param name="message">需要记录的文本信息</param>
iW,fKXuo&y /// </summary>
qrZ*r{3 public static void WriteInfo(String message)
uKE?VNC] {
EX9os WriteLog(TraceLevel.Info, message);
|v31weD8 }
u[G`_Y{=EM /// <summary>
B #zU'G*Y /// 将跟踪信息记录到Win2000/NT事件日志中
/7[X_)OG /// <param name="message">需要记录的文本信息</param>
KR sY `[Y /// </summary>
g;G]Xi.B} public static void WriteTrace(String message)
"0]s|ys6< {
\:@yfI@ WriteLog(TraceLevel.Verbose, message);
$F/Uk;*d! }
yTwtGo& $Y9Wzv3Ra /// <summary>
A-om?$7 /// 格式化记录到事件日志的文本信息格式
?'I pR /// <param name="ex">需要格式化的异常对象</param>
n+9rx]W, /// <param name="catchInfo">异常信息标题字符串.</param>
r}Ec_0_lt /// <retvalue>
@_4E^KgF /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
X4{O/G /// </retvalue>
deVbNg8gs /// </summary>
9qXKHro public static String FormatException(Exception ex, String catchInfo)
]p5]n*0X {
5w$\x+no StringBuilder strBuilder = new StringBuilder();
0` \!O(jJ if (catchInfo != String.Empty)
dAkJ5\=* {
6< O|,7=_ strBuilder.Append(catchInfo).Append("\r\n");
0JS#{EDh+ }
O{w'i| strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
eB,eu4+- return strBuilder.ToString();
?vr9l7VOi }
hX&Jq%{oa UK!PMkX /// <summary>
T i!<{> /// 实际事件日志写入方法
g6p:1;Evf /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
n0rAOkW /// <param name="messageText">要记录的文本.</param>
H". [&VP5Z /// </summary>
gUtxyW private static void WriteLog(TraceLevel level, String messageText)
`@)>5gW&p {
O|I)HpG; try
E/IoYuB {
+xG EventLogEntryType LogEntryType;
])3(@. switch (level)
lPO+dm {
uEX+j case TraceLevel.Error:
W34_@,GD LogEntryType = EventLogEntryType.Error;
.&2Nm&y$K break;
.5K}R< case TraceLevel.Warning:
#$;i 4a LogEntryType = EventLogEntryType.Warning;
ll8Zo+-[ break;
L$Yg*]\ case TraceLevel.Info:
Tw+V$:$$ LogEntryType = EventLogEntryType.Information;
nXFPoR)T break;
(`me}8 case TraceLevel.Verbose:
"B3&v%b LogEntryType = EventLogEntryType.SuccessAudit;
\~~y1.,U. break;
sm9/sX! default:
+fRABY5C LogEntryType = EventLogEntryType.SuccessAudit;
Wi%e9r{hU break;
rS&"UH?c7 }
Wt
1]9{$ |(77ao3 EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
dJ&f +
//写入事件日志
Ka+N5 T.f eventLog.WriteEntry(messageText, LogEntryType);
'%y5Dh Q$lgC
v^M }
<7R+p;y catch {} //忽略任何异常
ayK?\srw }
q\]"}M8 } //class ApplicationLog
!)-)*T }
g;mX {p_@ >pRC$'Usx 12.Panel 横向滚动,纵向自动扩展
f<;w1sM\ <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
Y~"5HP| &8xwR 13.回车转换成Tab
2.PZtl <script language="javascript" for="document" event="onkeydown">
OLs<]0H
if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
K);)$8K event.keyCode=9;
V N<omi+4 </script>
J@l QzRqRb #Bo3:B8 onkeydown="if(event.keyCode==13) event.keyCode=9"
Yx3ivjX.> -.!+i8d> 14.DataGrid超级连接列
(T 8In DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
_-c1" Kl 6haw\ * 15.DataGrid行随鼠标变色
Ygs:Ox"[-G private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
a4E{7c {
iRK&-wn if (e.Item.ItemType!=ListItemType.Header)
Xt9vTCox {
tRu j}n+x e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
Uy98lv e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
@t{`KB+
^ }
mIh >8))E }
hSgH;k
e]DuV)k& 16.模板列
VqL#w<A% <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
"J"RH:$v <ITEMTEMPLATE>
H9%[!
RF <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
Mfinh@K, </ITEMTEMPLATE>
l?<DY$H
0 </ASP:TEMPLATECOLUMN>
'dvi@Jx _MLbJ <ASP:TEMPLATECOLUMN headertext="选中">
v9
*WM3 <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
L"Dos + <ITEMTEMPLATE>
.Q5zmaA] <ASP:CHECKBOX id="chkExport" runat="server" />
)j\9IdkU;y </ITEMTEMPLATE>
u?7^+z <EDITITEMTEMPLATE>
x^~@`]TV^ <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
8.ej65r* </EDITITEMTEMPLATE>
GFTOP%Tgl </ASP:TEMPLATECOLUMN>
9!?Ywc>0# 7xh91EU:4 后台代码
U%r|hn3 protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
AkAQ%)6qV {
u2
t=*<X //改变列的选定,实现全选或全不选。
RaC8Sq7hW CheckBox chkExport ;
51gSbkVX
if( CheckAll.Checked)
8T5W6Zs1 {
~+S,`8-P foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
DI0Wk^ m {
Pe/8=+qO chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
6lob&+ chkExport.Checked = true;
?M BOd9 }
AwtiV-w }
/{>_'0 else
:j&- Lc {
e4LJ3y&z" foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
p1!-|Sqq {
e:+[}I) chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
Av>xgfX chkExport.Checked = false;
I_5[-9 }
M4)Y%EPc }
`l ?(zy:R }
Ejt?B')aB5 A_g\Fa[jG 17.数字格式化
lS{ ^*(a %:N;+1 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
$EG9V++b3 <%#Container.DataItem("price","{0:¥#,##0.00}")%>
9_xrw:4 {J*|)-eAw int i=123456;
9c{T|+] string s=i.ToString("###,###.00");
5;@2SY7, js;k,` 18.日期格式化
N<~LgH 6%Pvh- ~_ 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
Hq
aay Ij2Th] 显示为: 2004-8-11 19:44:28
\ 0/m$V. 3?Fe(!@ 我只想要:2004-8-11 】
-unQ4G <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
%m##i cJ#n<Rsz 应该如何改?
*r)dtI* I{i6e'.jP 【格式化日期】
}poLHS/ 5}TTf2&Xo# 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
"Pl.G[Buc- U;#G$ 【日期的验证表达式】
($Q|9>5, [&pMU) A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
1EWskmp ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
K"cV7U rE A [_T~+-G B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
Uc9hv? ^\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]))$
E&dxM{` 8&SWQ 【大小写转换】
LcTTfb+< HttpUtility.HtmlEncode(string);
h{:
]'/@~ HttpUtility.HtmlDecode(string)
tuJ{IF kTA4!654 19.如何设定全局变量
%wco)2 ?Xj@Sx Global.asax中
@$1jp4c
rP IAu[],g Application_Start()事件中
Kf# iF* xy-Vw"I[bh 添加Application[属性名] = xxx;
Q%W>m0% nd"$gi 就是你的全局变量
VNwOD-b/] P6A##z 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
qwq5yt? l[^0Ik-G HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
Q_`EKz;N{ :}CcWfbT 【ASPNETMENU】点击菜单项弹出新窗口
T%aM~dp [e o= 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
r<B
pX[" <?xml version="1.0" encoding="GB2312"?>
;Irn{O <MenuData ImagesBaseURL="images/">
C=t9P#g*. <MenuGroup>
O*yA50Cn <MenuItem Label="内参信息" URL="Infomation.aspx" >
h0")NBRV& <MenuGroup ID="BBC">
pGr4b:N <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
v oO7W" <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
y?Pw6;e. ......
ul]hvK{2 Bh7hF?c Sj 最好将你的aspnetmenu升级到1.2版
8?ip,Q\ 9\uBX.]x 21.读取DataGrid控件TextBox值
[#%@,C foreach(DataGrid dgi in yourDataGrid.Items)
u/ri
{neP{ {
I~4!8W-Y TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
?kS#g tb.Text....
`A<2wd; }
o%*C7bU 7CwWf 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?
S
R s .\:MB7p 〖思归〗
tAkv'. <asp:TemplateColumn HeaderText="数量">
5> !N)pA <ItemTemplate>
'EN80+xYX <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
FSkLR h onkeyup="javascript:DoCal()"
`3*QKi$ />
#e1iYFgS 39L_O RMH <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
o5:md :\ </ItemTemplate>
@|{8/sOq </asp:TemplateColumn>
S0ltj8t :KqSMuKR <asp:TemplateColumn HeaderText="单价">
<sSH^J4QqX <ItemTemplate>
Tj}%G <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
FiSx"o onkeyup="javascript:DoCal()"
&?5me:aU />
\jb62Jp +No` 89Y <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
{^k7}`7, o#>Mf464I
</ItemTemplate>
l| y.6v </asp:TemplateColumn>
WJk3*$=
WJ,? 5# <asp:TemplateColumn HeaderText="金额">
m'M5O@? <ItemTemplate>
VQ8Fs/Zt! <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
xVRxKM5 { </ItemTemplate>
8#[2]1X^8 </asp:TemplateColumn><script language="javascript">
v]rbm}uU9 function DoCal()
6}~k4;'}A {
y9k'jEZ"oh var e = event.srcElement;
SVObJsB^ var row = e.parentNode.parentNode;
% bKy var txts = row.all.tags("INPUT");
gLg.mV1< if (!txts.length || txts.length < 3)
<$ qT(3w<y return;
#fk1'c2
^Vf@J var q = txts[txts.length-3].value;
a^_W}gzzd var p = txts[txts.length-2].value;
0|g@;Pc Yj'"Wg if (isNaN(q) || isNaN(p))
(EjlnG}5l return;
Z?'?|vM ,/kZt! q = parseInt(q);
nw#AKtd@x p = parseFloat(p);
Nw(hN+_u Qg0%rbE txts[txts.length-1].value = (q * p).toFixed(2);
U.h2 (-p }
=uEpeL~d;+ </script>
2vhP'?;K HD3WsIim* Z!*6;[]SfG H[}lzL) ouO9%)zv
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。
&PMfAo^ page_load
gk;hpO page.smartNavigation=true
QO>';ul5 [WV&Y,E 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 ?
f>e0l'\ private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
hQ@#h`lS {
`jyyRwSoe for(int i=0;i<e.Item.Cells.Count-1;i++)
Db !8N if(e.Item.ItemType==ListItemType.EditType)
w`fbUh6/ {
g<7Aln}Nl\ e.Item.Cells.Attributes.Add("Width", "80px")
CIf@G>e- }
k7j[tB# }
CD5% iFy My Ky*wD 26.对话框
UZ "!lpg private static string ScriptBegin = "<script language=\"JavaScript\">";
BoOuN94 private static string ScriptEnd = "</script>";
[rW];H8:~ x-W~&`UU public static void ConfirmMessageBox(string PageTarget,string Content)
q*tGlM@R? {
bZ:xH48MY string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
F1BXu@~e( Ni|MTE]~ ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
Y[_|sIy* ;?q}98-2 Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
jatlv/, ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
*$`N5;7'` //Response.Write(strScript);
sKJr34 }
0-;>O|U3 =vvd)og 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
wm Ie x nkTdn 1.1 取当前年月日时分秒
gsUF\4A(J currentTime=System.DateTime.Now;
!YI<A\P o!U(=:*b 1.2 取当前年
UFu0{rY_ int 年= DateTime.Now.Year;
r=SCbv Gt
_tL% 1.3 取当前月
q'4P/2)va int 月= DateTime.Now.Month;
fD3'Ye<R ^,FG9 1.4 取当前日
z] -m<#1 int 日= DateTime.Now.Day;
ob'"
^LO\ #XB3Wden2 1.5 取当前时
TU58 int 时= DateTime.Now.Hour;
gK@`0/k{ #I*{_|}= 1.6 取当前分
9Kgyt int 分= DateTime.Now.Minute;
*SIYZE' Vh2uzG 1.7 取当前秒
x*RSD,3 int 秒= DateTime.Now.Second;
nC!]@lA KLj=M;$:K 1.8 取当前毫秒
jSH.e? int 毫秒= DateTime.Now.Millisecond;
nRu %0Op ~WORC\kCW 28.自定义分页代码:
AzSu_ B~|]gd 先定义变量 :
R9Wr? public static int pageCount; //总页面数
J/:U,01 public static int curPageIndex=1; //当前页面
'o4`GkNh) o0>| 下一页:
V6'u\Ch| if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
h::(b ,|f7 {
z^jmf_ DataGrid1.CurrentPageIndex += 1;
Q672iR\#) curPageIndex+=1;
Bha("kG }
9v;HE{> L N.:>, bind(); // DataGrid1数据绑定函数
6xwjKh:9 mpCu,l+lo 上一页:
]7>#YKH. if(DataGrid1.CurrentPageIndex >0)
l6 }+,v@# {
f~PS'I_r DataGrid1.CurrentPageIndex += 1;
7R
m\# curPageIndex-=1;
NZ&ZK@h}. }
ao=e{R) mqHH1} bind(); // DataGrid1数据绑定函数
`LLmdm 6i /5z,G r 直接页面跳转:
"
DLIx} int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
cWZ uph\ "C&>$h_% if(a<DataGrid1.PageCount)
54JZOtC3~ {
F?"Gln~; this.DataGrid1.CurrentPageIndex=a;
n4M
Xa()P1 }
3e47UquZ at{p4Sl bind();
5Phsh q
}>3NCh 29.DataGrid使用:
7I#C[:7x ?e4H{Y/M 添加删除确认:
@: =vK?8L private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
8~t8^eBg
{
27+faR foreach(DataGridItem di in this.DataGrid1.Items)
0^nF: F {
0Z]HH+Z; if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
3c7i8b $ {
Ba5*]VGG ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
s! }
&A.0(s }
lMh>eX }
LyNmn.nN Ok@`<6v 样式交替:
E>i<2 ListItemType itemType = e.Item.ItemType;
FG{,l=Z0 x V`l6QS if (itemType == ListItemType.Item )
4 qY {
!G\gqkSL e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
zLJmHb{( e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
64mD%URT }
gq 3|vzNZ else if( itemType == ListItemType.AlternatingItem)
~x/ka43 {
y!}XlllV e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
e f&8L e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
z^.dYb7< }
hcRe,}wJ jP_s(PQ 添加一个编号列:
~_"V7 DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
[>pBz3fn, DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
+WR?<*_ oQ/T5cOj for(int i=0;i<dt.Rows.Count;i++)
oIx|)[ {
(~{Y}n]s dt.Rows["number"]=(i+1).ToString();
94dd )/a }
v0! 1W cF=W hP*f DataGrid1.DataSource=dt;
cN?/YkW?] DataGrid1.DataBind();
%+,*$wk#* PN8#T:E DataGrid1中添加一个CheckBox,页面中添加一个全选框
7NWkN7:B private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
sR83e|4I {
_->+Hjj ^ foreach(DataGridItem thisitem in DataGrid1.Items)
c/^jD5U7 {
$RRX- ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
}N(gP_?n }
%Cqp88] }
Oso**WUOZ& Qc?W;Q+ 将当前页面中DataGrid1显示的数据全部删除
p%sizn foreach(DataGridItem thisitem in DataGrid1.Items)
%kop's&?C {
1P1h);*Z if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
",vK~m2W_ {
z80FMulO string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
[xrsa!$ Del (strloginid); //删除函数
^xNzppz`]C }
3h=kn@I }
yhbU;qEG9 Jq(;BJ90R 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)
5Rs#{9YE N[\J#x!U 在Application_Start中添加以下代码:
czu9a"M>X Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
SpU|Q1Q/h AppSettings["ConnStr"].ToString();
N6u>V~i lN:;~;z_ 31. 变量.ToString()
3Og}_ ] dJ"_ 字符型转换 转为字符串
~&RrlF h 12345.ToString("n"); //生成 12,345.00
?<