1. 打开新的窗口并传送参数:
Mbn;~tY> =|dHD 传送参数:
V>D}z8w7 response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
,&L}^ Up y9.?5#aL 接收参数:
a'A<'(yv string a = Request.QueryString("id");
D@kf^1G string b = Request.QueryString("id1");
!+]KxB eJeL{`NS 2.为按钮添加对话框
MG~bDM4 Button1.Attributes.Add("onclick","return confirm(’确认?’)");
*K BaKS button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
<v=s:^;C0 !j}L-1*{ l 3.删除表格选定记录
4W}mPeEeV int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
/EuH2cy$l string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
e;2A{VsD8 >`p?
CE 4.删除表格记录警告
mtdy@=?1Y private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
?!O4ia3nFk {
|a%Wd switch(e.Item.ItemType)
hzT)5'_ {
F|@\IVEB] case ListItemType.Item :
Tgh?=]H case ListItemType.AlternatingItem :
-hc8IS case ListItemType.EditItem:
Q>71uM%e` TableCell myTableCell;
BGHZL~ myTableCell = e.Item.Cells[14];
BWNI|pq)v LinkButton myDeleteButton ;
SM8_C!h: myDeleteButton = (LinkButton)myTableCell.Controls[0];
>GLoeCRNu myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
pw`'q(ad break;
2[qoqd( default:
Ks<+@.DLTu break;
k SgE_W) }
LR';cR; #jd.i }
`?b'.Z_J O<E8,MCA[a 5.点击表格行链接另一页
%k~ezn private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
+bT[lJ2O>G {
X?XB!D7[ //点击表格打开
Cc;8+Z=a?G if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
X yiaRW e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
$HtGB] }
9Q!Z9n"8~) tzv4uD] 双击表格连接到另一页
@DF7j|]tV vn!3Z! dm( 在itemDataBind事件中
64]8ykRD- if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
DEbMb6)U {
`WnsM;1Y" string OrderItemID =e.item.cells[1].Text;
dFA1nn6{ ...
sN2m?`?"G e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
[ D.%v~j }
C!ch
!E# k/sfak{Q 双击表格打开新一页
*,IK4F6>: if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
b%vIaP|]B {
boHbiE string OrderItemID =e.item.cells[1].Text;
fx>U2 ...
)W InPW e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
x/wgD'? }
lfre-pS+ p|8ZHR+ ★特别注意:【?id=】 处不能为 【?id =】
*ra>Kl0
6.表格超连接列传递参数
vbd)L$$20+ <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
/'5d0' ,M <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
ch25A<O<R. #9Ect@?N0 7.表格点击改变颜色
V1pBKr)v if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
`*B V@ {
6q>}M e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
6B|i-b$~ this.style.color=’buttontext’;this.style.cursor=’default’;");
:`Ut.E~. }
,.}%\GhY j/fniyJ) 写在DataGrid的_ItemDataBound里
%ek0NBE7 if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
fGqX
dlP {
AI|+*amTd e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
^i_+ugJX this.style.color=’buttontext’;this.style.cursor=’default’;");
W`NF4 0) e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
>3@3~F%xAX }
EwkSUA>Tm MtaGv#mJ ^m&I^ \ 8.关于日期格式
y j#*H miu?X ! 日期格式设定
}z$_!)/i DataFormatString="{0:yyyy-MM-dd}"
=&,T@5&-= 4dcm)Xr 我觉得应该在itembound事件中
E}v8Q~A( e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
!|UX4 X^K^az&L 9.获取错误信息并到指定页面
/t`\b
[ 'Grii, 不要使用Response.Redirect,而应该使用Server.Transfer
ge:a{L elQjPvb e.g
Z\xnPhV // in global.asax
yCav;ZS_ protected void Application_Error(Object sender, EventArgs e) {
`lWGwFg g( if (Server.GetLastError() is HttpUnhandledException)
I`H&b&
.` Server.Transfer("MyErrorPage.aspx");
Sk/@w[ )$bF* //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
~!qnKM>[ }
BQ)>}YHk u[Kz^ga< 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
vdC0tax [l3\0e6-/ 10.清空Cookie
F8"J<VJ7 Cookie.Expires=[DateTime];
;?tH8jf> Response.Cookies("UserName").Expires = 0
K) fKL
{H)hoAenA 11.自定义异常处理
{+=hYB|& //自定义异常处理类
P.C?/7$7Z+ using System;
R54ae:8 using System.Diagnostics;
I;%1xdPt l nHY?y7{ namespace MyAppException
peBHZJ``RX {
>Zs! /// <summary>
;Vs2e /// 从系统异常类ApplicationException继承的应用程序异常处理类。
pu]U_Ll@ /// 自动将异常内容记录到Windows NT/2000的应用程序日志
`bfUP s /// </summary>
wjwCs` public class AppException:System.ApplicationException
hTzj{}w {
R[j? \# public AppException()
(${ #l {
&K[sb% if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
#~)A#~4O }
_.Hj:nFHz 5X=1a*2'] public AppException(string message)
Zk((VZ(y {
2[ofz}k]r) LogEvent(message);
gBv!E9~l }
I`X!M!dB) [`b,SX
x public AppException(string message,Exception innerException)
gac31,gH {
+]A,fmI. LogEvent(message);
uX3yq<lK" if (innerException != null)
vJ}WNvncVF {
qnboXGaFu LogEvent(innerException.Message);
RQ=$,
i` }
zKGZg>q }
)'T].kWW 7PMz6 //日志记录类
T` h%=u|D using System;
os"R'GYmf using System.Configuration;
Qe>_\-f
using System.Diagnostics;
c-(RjQ~M5 using System.IO;
'g)f5n a[ using System.Text;
:?\29j#*V using System.Threading;
iYgVSVNg l`zhKj namespace MyEventLog
x\8g ICf {
4X]/8%]V /// <summary>
t3Gy *B /// 事件日志记录类,提供事件日志记录支持
Os-Z_zSl6 /// <remarks>
9dNkKMc@ /// 定义了4个日志记录方法 (error, warning, info, trace)
SNOc1c<~ /// </remarks>
rIPfO'T? /// </summary>
<q$Tk, public class ApplicationLog
7HH@7vpJ^ {
E> GmFw /// <summary>
<b,WxR` /// 将错误信息记录到Win2000/NT事件日志中
XXum2eA /// <param name="message">需要记录的文本信息</param>
4"kc(J`c /// </summary>
t2)uJN`a$X public static void WriteError(String message)
nUpj+F# {
Q4-d| WriteLog(TraceLevel.Error, message);
e}yF2|0FD }
(0q`eO2 Es7
c2YdU /// <summary>
!~9ASpqvPy /// 将警告信息记录到Win2000/NT事件日志中
m_oUl(pk /// <param name="message">需要记录的文本信息</param>
_Sfu8k>): /// </summary>
~6kF`}5 public static void WriteWarning(String message)
n'^`;- {
|.$B,cEd WriteLog(TraceLevel.Warning, message);
#1E4
R}B }
yKl^-%Uq< YGOkqI /// <summary>
*sU,waX /// 将提示信息记录到Win2000/NT事件日志中
W7WHDL^ /// <param name="message">需要记录的文本信息</param>
\99'#]\_/E /// </summary>
]NTQF/ public static void WriteInfo(String message)
G<-KwGy,D {
4AJT)I. WriteLog(TraceLevel.Info, message);
JseKqJ?g }
aUZ?Ue9l>2 /// <summary>
[;,E cw^ /// 将跟踪信息记录到Win2000/NT事件日志中
fVgK6?<8^ /// <param name="message">需要记录的文本信息</param>
r+ 8Tp|% /// </summary>
Db|JR public static void WriteTrace(String message)
VQH48{X {
[k\VUg:P WriteLog(TraceLevel.Verbose, message);
sx=1pnP9` }
PWl;pBo KBtqtE'(L /// <summary>
]^>Inh! /// 格式化记录到事件日志的文本信息格式
#BP0MY& /// <param name="ex">需要格式化的异常对象</param>
{U_ ,y(V /// <param name="catchInfo">异常信息标题字符串.</param>
7QTS@o- /// <retvalue>
6AJ`)8HX /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
mz.,j(Ks- /// </retvalue>
m<3. X"- /// </summary>
I\6C0x public static String FormatException(Exception ex, String catchInfo)
%/w-.?bX {
eR5q3E/;G StringBuilder strBuilder = new StringBuilder();
eC"e
v5v if (catchInfo != String.Empty)
A+M4= {
/} PdO strBuilder.Append(catchInfo).Append("\r\n");
6jc5B# }
b}Gm{;s! strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
w}l^B>Zz return strBuilder.ToString();
1$E [`` n }
e_ epuki ZrEou}z(* /// <summary>
02;'"EmP$ /// 实际事件日志写入方法
Tdh.U{Nz /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
>l)x~Bkf$j /// <param name="messageText">要记录的文本.</param>
33lh~+C /// </summary>
,^c-}`!K private static void WriteLog(TraceLevel level, String messageText)
Uz_ob9l<#H {
,0h{RZKw try
qbq2Bi'a {
jW8ad{ EventLogEntryType LogEntryType;
8/R$}b>< switch (level)
P{K\}+9F
{
B">Ko3 case TraceLevel.Error:
[rcM32 LogEntryType = EventLogEntryType.Error;
<Nrtkf4-O break;
Pzzzv^+ case TraceLevel.Warning:
4K:Aqqhds LogEntryType = EventLogEntryType.Warning;
)fXw ~ break;
F~eYPaEKy! case TraceLevel.Info:
>Vq07R LogEntryType = EventLogEntryType.Information;
U9`Co&Z2 break;
4uO88[= case TraceLevel.Verbose:
>qy62:co LogEntryType = EventLogEntryType.SuccessAudit;
]Whv% break;
TxQsi"0c default:
0N!rIz LogEntryType = EventLogEntryType.SuccessAudit;
N~v<8vJq` break;
U`~L}w" }
Pl'lmUR E.m2- P;4 EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
J#wf`VR% //写入事件日志
bz nMD eventLog.WriteEntry(messageText, LogEntryType);
\Kui`X SbUac< }
sqhIKw@ catch {} //忽略任何异常
<Ffru?o4j }
3+'vNc } //class ApplicationLog
Bj6%mI42hl }
fI;nVRfp aj1g9y 12.Panel 横向滚动,纵向自动扩展
"kcix!}& <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
[Y`E"1f2 ]Gm4gd` 13.回车转换成Tab
<^>
nR3E <script language="javascript" for="document" event="onkeydown">
~5|R`% if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
l=P)$O|=w event.keyCode=9;
VSUWX1k4% </script>
)Az0.} b(@GKH"W onkeydown="if(event.keyCode==13) event.keyCode=9"
^"lEa-g& ^2BiMH3j 14.DataGrid超级连接列
Q$p3cepsK DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
;8MQ'# )Dhx6xM[a 15.DataGrid行随鼠标变色
:_HdOm private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
/z!y[ri+J {
J0&-UnJ if (e.Item.ItemType!=ListItemType.Header)
a|y'-r90 {
#G(ivRo e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
8H};pu2 e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
e:MbMj6` }
% mPv1$FH }
'e<8j VPO~veQ 16.模板列
PQ_A^ 95 <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
AwuhFPG <ITEMTEMPLATE>
be-HF;lZe' <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
@`B_Q v@ </ITEMTEMPLATE>
UT{`'#iT </ASP:TEMPLATECOLUMN>
w
`d9" n H0B=X l[ <ASP:TEMPLATECOLUMN headertext="选中">
dhP")@3K;p <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
'?I3&lYz{ <ITEMTEMPLATE>
aEa.g.SZ <ASP:CHECKBOX id="chkExport" runat="server" />
s4f{ziLp </ITEMTEMPLATE>
,V5fvHPH)8 <EDITITEMTEMPLATE>
hd/'>]
<ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
^pY8'LF6 </EDITITEMTEMPLATE>
+:aNgO#e8 </ASP:TEMPLATECOLUMN>
T%"wz3~ 5sEk rT ' 后台代码
.*"KCQGOgM protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
\TzBu?,v8 {
/ioBc}] //改变列的选定,实现全选或全不选。
{QdoIPr3 CheckBox chkExport ;
A[fTpS ~~% if( CheckAll.Checked)
hDg"?{ {
Fku<|1}&y foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
7N OF^/nU {
/i_FA]Go chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
_ A{F2M chkExport.Checked = true;
!%(kMN }
9RSviIi$ }
t<}N>%ZO else
k=p[Mlic/ {
@!ja/Y^ foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
!YO'u'4<aK {
Mg}/gO%o chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
gE*7[*2?t chkExport.Checked = false;
zFYzus`> }
'O2/PU2_ }
f#I#24)RH }
yZoJD{'?Sw ON>l%Ae4G 17.数字格式化
.n.N.e iM1E**WCtv 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
g^po$%I ' <%#Container.DataItem("price","{0:¥#,##0.00}")%>
:YX5%6 iN0'/)ar int i=123456;
:T@} CJ string s=i.ToString("###,###.00");
'F/uD1; c%wztP;L 18.日期格式化
lc [)Ev LV$Ko_9eA 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
'vq0Tw5 x{G 'IEf 显示为: 2004-8-11 19:44:28
g#1Y4 qJtLJ<=1 我只想要:2004-8-11 】
{{pN7Z
<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
y=
8SD7P' `d/* sX?k 应该如何改?
(6}7z+ :1"k`AG 【格式化日期】
T^$`Z. W"t^t|H'~ 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
b>#dMRK ;/ |tU
o$ 【日期的验证表达式】
psiuoYf heWQPM|s A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
Ix(,gDN ^((\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})))?$
Ne3YhCC> tK# /S+l B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
'4M; ;sKW ^\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]))$
WD kE
5 y5^OD63s 【大小写转换】
&b%2Jx[+ HttpUtility.HtmlEncode(string);
#tw_`yh HttpUtility.HtmlDecode(string)
pP"j| 8aM\B%NGWi 19.如何设定全局变量
p*1B*R R S>qP;V*- Global.asax中
4OAR ["f O^ &m Application_Start()事件中
3-Xd9ou BT3yrq9 添加Application[属性名] = xxx;
nLANWQk9 w|0:0Rc~u 就是你的全局变量
"HH<5M !`W0;0'Zg 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
c|k(_#\B Ff
=%eg] HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
VKlC`k8L 7GErh, 【ASPNETMENU】点击菜单项弹出新窗口
`6# s+JA[ VH+3o?nrT 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
1TGE>HG <?xml version="1.0" encoding="GB2312"?>
w7q6v> <MenuData ImagesBaseURL="images/">
3U!=R- <MenuGroup>
|S<!'rY <MenuItem Label="内参信息" URL="Infomation.aspx" >
gg#lI| <MenuGroup ID="BBC">
~oK0k_{~ <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
g2M1zRm; <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
2BT+[ ......
$Tt.r P)Oe?z;G? 最好将你的aspnetmenu升级到1.2版
B"5xs 1#fR=*ZM" 21.读取DataGrid控件TextBox值
X1[zkb foreach(DataGrid dgi in yourDataGrid.Items)
p"H/N_b4 {
<7L-25 = TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
*.D{d0A tb.Text....
Z TB6m` }
0xvSi9 %uiCC>cC 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?
,R7j9#D Fo~q35uB 〖思归〗
$S2
/* <asp:TemplateColumn HeaderText="数量">
F~OQ'59!Pf <ItemTemplate>
@`^Z5n.4 <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
*mYGs )| onkeyup="javascript:DoCal()"
-Edi"B4K />
;K4uu<e\ 6o(.zk`d <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
/t2H%#v{ </ItemTemplate>
*Utx0Me </asp:TemplateColumn>
k;SKQN %503<j <asp:TemplateColumn HeaderText="单价">
B
T
{cTj0W <ItemTemplate>
_~P&8 <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
k$DRX)e onkeyup="javascript:DoCal()"
<QaUq`, />
mjk<FXW ![]6| G& <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
bwszfPM ]n:R#55A </ItemTemplate>
i3$G)W </asp:TemplateColumn>
+t
Prqv"( z 9WeOs <asp:TemplateColumn HeaderText="金额">
c]$$ap <ItemTemplate>
J{XRltI+ <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
I1K %n'D </ItemTemplate>
^R(=4%8%" </asp:TemplateColumn><script language="javascript">
$?[pcgv function DoCal()
?zVE7;r4U {
D)S_ p& var e = event.srcElement;
;/IXw>O(/ var row = e.parentNode.parentNode;
_t4(H))]vG var txts = row.all.tags("INPUT");
*o(bB!q"c if (!txts.length || txts.length < 3)
s%5XBI return;
,u-9e4 ]'hel#L;l var q = txts[txts.length-3].value;
mGmZ}H'{ var p = txts[txts.length-2].value;
"W9z>ezp x>A[~s"|N if (isNaN(q) || isNaN(p))
m<*+^JN return;
!#e+!h@ ]zIIi% q = parseInt(q);
\SYeDy p = parseFloat(p);
.>-D{ txX>zR*)
txts[txts.length-1].value = (q * p).toFixed(2);
R -mn8N& }
^i3!1cS </script>
aJ1{9 5ea d+0= a] g2u\gR5 yKm6
8n^
I58$N+# 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。
IfI:|w}:"r page_load
8&qtF.i-6 page.smartNavigation=true
*Z2Ko5&Y2 x7jFYC 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 ?
%ca` v;]. private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
6J$I8b#/ {
]Qp-$)N for(int i=0;i<e.Item.Cells.Count-1;i++)
34_
V&8 if(e.Item.ItemType==ListItemType.EditType)
<R_)[{ 7 {
"%_T7A ![ e.Item.Cells.Attributes.Add("Width", "80px")
<w?k<%( 4 }
2l:cP2fa }
6UqDpL7^U cveQ6
-`K 26.对话框
*Aug7
HlS private static string ScriptBegin = "<script language=\"JavaScript\">";
p^ OHLT private static string ScriptEnd = "</script>";
N'pYz0_H Ahr public static void ConfirmMessageBox(string PageTarget,string Content)
hb}Qt Q {
- _%~b string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
'jye* :<5jlpV( ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
<HpUP!q8v Ufor> Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
t"MrrK>T ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
P1Iy>%3 //Response.Write(strScript);
'Ddzlip }
w:=:D=xH2 6
Pdao{P 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
q{f (T\ 5as5{"l 1.1 取当前年月日时分秒
'cc{sjG currentTime=System.DateTime.Now;
Np$ue
}yr l2Rnyb<;; 1.2 取当前年
it-2]Nw int 年= DateTime.Now.Year;
E!L_"GW -q?, 1.3 取当前月
]4K4Nh~ int 月= DateTime.Now.Month;
X7tBpyi tv:
mjS 1.4 取当前日
3hA5"G+7 int 日= DateTime.Now.Day;
#n|eq{fkK h$%h w+"4 1.5 取当前时
Ya!PV&"Z int 时= DateTime.Now.Hour;
'tX}6wurf mSk";UCn 1.6 取当前分
WQBV~.<Yv int 分= DateTime.Now.Minute;
G%K&f1q% xNLgcb@v> 1.7 取当前秒
q:vGG K^ int 秒= DateTime.Now.Second;
8{6`?qst@ f*p=j(sF 1.8 取当前毫秒
,;<M+V3+ int 毫秒= DateTime.Now.Millisecond;
HJlxpX$_ $gL^\(_3H 28.自定义分页代码:
w`dSc@ : 7>AMzNj 先定义变量 :
<$K7f public static int pageCount; //总页面数
f=8{cK0j public static int curPageIndex=1; //当前页面
4VC8#x1 q_"w,28 下一页:
b"OH Xu if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
\}YAQ'T {
m5,&;~ DataGrid1.CurrentPageIndex += 1;
"QBl
"<<s curPageIndex+=1;
p
)WRsJ8 }
#GUD^#Jh 4sC)hAx&f bind(); // DataGrid1数据绑定函数
nu2m5RYx >q ,Z*s>? 上一页:
"x
3C3Zu.; if(DataGrid1.CurrentPageIndex >0)
]c6h'} {
2|NQ5OA0 DataGrid1.CurrentPageIndex += 1;
Oa M~rze curPageIndex-=1;
{Wfwf }
- "{hP OgHqF,0MN bind(); // DataGrid1数据绑定函数
]M~7L[ u0qTP] 直接页面跳转:
FiXqypT_( int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
F4ylD5Y! x<.(fRv if(a<DataGrid1.PageCount)
^}J,;Zhu5 {
)d|s$l$?7 this.DataGrid1.CurrentPageIndex=a;
#6pJw?[ }
,)VAKrSg h*3{IHAQ bind();
G+I->n-s4 !:}m-iqQ1 29.DataGrid使用:
Deq@T { %:OX^^i; 添加删除确认:
nEbZ8M private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
TJZar Nc$ {
Zt9ld=T foreach(DataGridItem di in this.DataGrid1.Items)
8m[o*E.4F {
]]y,FQ,r if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
_G2)=yj] {
xP27j_*m> ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
bHXoZix }
w U1[/ }
XK;Vu#E*^ }
r- Y7wM`TZ +k/=L9#e 样式交替:
wbg?IvY[ ListItemType itemType = e.Item.ItemType;
K1&t>2=% 31QDN0o!~ if (itemType == ListItemType.Item )
",aEN=+|hV {
SQ'%a-Mct e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
9 aK U}y e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
QB;TQZ }
'+c@U~d*7 else if( itemType == ListItemType.AlternatingItem)
lAo4) {
Y3-f68*( e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
xZ
SDA8kS e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
gtqtFrleG }
S@TfZ3Go| &MB1'~Q,hq 添加一个编号列:
~n(LBA DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
0r?]b*IEK DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
I$XwM B$7Cjv for(int i=0;i<dt.Rows.Count;i++)
y
k\/Cf {
2+*o^`%4P dt.Rows["number"]=(i+1).ToString();
05
.EI)7 }
j9-.bGtm?. P:5vS:s? DataGrid1.DataSource=dt;
'QTa<Z)E DataGrid1.DataBind();
~(=5`9 7g%\+%F
I DataGrid1中添加一个CheckBox,页面中添加一个全选框
nHU}OGzW private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
E!>MJlA:k6 {
/"^XrVi- foreach(DataGridItem thisitem in DataGrid1.Items)
+k0UVZZX? {
?30pNF| ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
,D&-.`'E }
_SH~.Mt_! }
7h>, Zlygx 将当前页面中DataGrid1显示的数据全部删除
L=WKqRa>4 foreach(DataGridItem thisitem in DataGrid1.Items)
>X5RRSo {
Kk|)N3AV: if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
"I @akM$x {
-KZ9TV # R string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
;wZplVB7y Del (strloginid); //删除函数
xlh<}Vtp }
K~fWZT3] }
xU(b:D Z st >%U9 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)
\tP*Pz
^b^buCYw 在Application_Start中添加以下代码:
n]>L"D, Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
|3hNTH? AppSettings["ConnStr"].ToString();
Ix~rBD9 mcs!A/]< 31. 变量.ToString()
m\_v{1g 57_AJT hR 字符型转换 转为字符串
Iv u'0vF 12345.ToString("n"); //生成 12,345.00
Wq?vAnLbk 12345.ToString("C"); //生成 ¥12,345.00
JIf.d($
~: 12345.ToString("e"); //生成 1.234500e+004
ll?Qg%V[t 12345.ToString("f4"); //生成 12345.0000
Nk1p)V SC 12345.ToString("x"); //生成 3039 (16进制)
PO|gM8E1x? 12345.ToString("p"); //生成 1,234,500.00%
cE?p~fq< N Ff`V 32、变量.Substring(参数1,参数2);
0W~1v L(C0236r 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);
f>m! }F: _,f7D/dq 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)
/03?(n= 3 <SCRIPT language="javascript">
NL'(/|) <!--
{s=c!08= function gook(pws)
^S(QvoaQ {
DU-dIqi frm.submit();
o@L
'|#e }
(?i4P5s[! //-->
}}oIZP\qM "
BU4\QF- </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
(-@I'CFd <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
KHM,lj* <tr>
SPauno <M <td>
q#"lnc<S <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
F'@9kdp <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
j@4]0o <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
mILCC}Kt
E/gfX
<INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
o?I`n*u"X <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
8:Dkf v J?1Eh14KZ </td>
4{0vdpo3F Fu[GQ6{f </tr>
&