1. 打开新的窗口并传送参数:
f-l(H="e Yuqt=\? # 传送参数:
1usLCG>w{ response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
9/I|oh_
G nkTu/)or 接收参数:
-_"6jU string a = Request.QueryString("id");
nEboet-#D0 string b = Request.QueryString("id1");
$"6O92G(hJ n0%]dKCB 2.为按钮添加对话框
pv ;ZR Button1.Attributes.Add("onclick","return confirm(’确认?’)");
hy{1 Ea/T button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
7!%xJ! w>Y!5RnO 3.删除表格选定记录
&Uu8wFbIJ int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
:7jDgqn^|i string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
DE _<LN
h}cR>
4.删除表格记录警告
=^S1+B
MY- private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
"3X~BdH&J {
KO5! (vi@ switch(e.Item.ItemType)
k_hs g6Ur. {
Q"=$.M~ case ListItemType.Item :
"YePd*W case ListItemType.AlternatingItem :
^OnZ9?C{R case ListItemType.EditItem:
byetbt(IF TableCell myTableCell;
MY"8! myTableCell = e.Item.Cells[14];
JUlCj#% LinkButton myDeleteButton ;
] B3\IT myDeleteButton = (LinkButton)myTableCell.Controls[0];
G [$u`mxV^ myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
Bi$nYV)-l break;
G[M{TS3&Ds default:
h;?H4j break;
1/%g
VB8 }
`c%{M4bF\ ;<)<4N" }
)$7-CNWr~ Emx`+9 5.点击表格行链接另一页
Fl0 :Z private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
T+U,?2nF: {
>,)tRQS //点击表格打开
;ro%Wjg`} if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
:FqHMN e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
U>=&
2Z2? }
Z_}[hz$ >%{H>?Hn 双击表格连接到另一页
(nLT8{>0 ud,=O Xq 在itemDataBind事件中
~Ddlr9Ej if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
yV/A%y-P {
# 8fq6z|JZ string OrderItemID =e.item.cells[1].Text;
@Rp#*{ ...
MclW!CmJ e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
5svM3 # }
|;k@Zlvc oZSPdk
双击表格打开新一页
a1yGgT a?D if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
}10ZPaHjl+ {
0$A7"^] string OrderItemID =e.item.cells[1].Text;
%RX}sS ...
?'I pR e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
n+9rx]W, }
-K*&I! !au%D?w ★特别注意:【?id=】 处不能为 【?id =】
N497"H</ 6.表格超连接列传递参数
I`
+%ab <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
qGrUS_~q* <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
.T|1l$Jn
i_M0P1 2 7.表格点击改变颜色
~rICPR if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
[+4/M3J% {
$++SF)G1]_ e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
rI.CCPY~s this.style.color=’buttontext’;this.style.cursor=’default’;");
h#Q Sx@U6 }
>hsvRX\_` lZf=# 写在DataGrid的_ItemDataBound里
1K&l}/zUl if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
|\k,qVQ {
u#r[JF9LP e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
+4]31d&3 this.style.color=’buttontext’;this.style.cursor=’default’;");
h}knn3"S e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
5w#7B }
T(2*P5%& w_h}c$;GK CPt62j8 8.关于日期格式
1b4/ $zv&MD!&h 日期格式设定
nTQ&nu! DataFormatString="{0:yyyy-MM-dd}"
$2'Q'Mx[gd v3]mZ}W$ 我觉得应该在itembound事件中
*j"u~ NF e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
FQW{c3%qZ |fhYft 9.获取错误信息并到指定页面
}{S
f* $G}!eV
6 不要使用Response.Redirect,而应该使用Server.Transfer
d:SLyFD$q D,sb{N e.g
k^C^.[? // in global.asax
"-afHXED protected void Application_Error(Object sender, EventArgs e) {
(HD8Mm if (Server.GetLastError() is HttpUnhandledException)
-jdhdh Server.Transfer("MyErrorPage.aspx");
.Mb<.R3 3tu:Vc.:M //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
2SV}mK U }
ilr'<5rq yZcnky 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
lZ>j:/R8^& ngI3.v/R 10.清空Cookie
rf= ndjrH Cookie.Expires=[DateTime];
ZW)_dg 9 Response.Cookies("UserName").Expires = 0
tTcff9ee n1J;)VyR 11.自定义异常处理
q-|j
= //自定义异常处理类
HBp$
using System;
]**h`9MF
using System.Diagnostics;
ayK?\srw QuWWa|g^. namespace MyAppException
lNs;-`I~ {
>pRC$'Usx /// <summary>
f<;w1sM\ /// 从系统异常类ApplicationException继承的应用程序异常处理类。
Y~"5HP| /// 自动将异常内容记录到Windows NT/2000的应用程序日志
c[<>e#s+; /// </summary>
8o%g2 P9. public class AppException:System.ApplicationException
[8v>jQ) {
Um2RLM% public AppException()
=Owr
l'@|T {
v-ZTl4j$ if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
-J'0qN! }
yhG%@vSq odsLFU( public AppException(string message)
,6AnuA {
U *K6FWqiB LogEvent(message);
V AnP3: }
>Sc/E}3 "%E<%g public AppException(string message,Exception innerException)
KbTd`AIL {
s9aa _Th LogEvent(message);
u/ZV35z if (innerException != null)
M,we9];N {
Q@0Zh,l LogEvent(innerException.Message);
-Wm'@4bH }
lv!8)GX| }
nBkzNb{"AZ LTlbrB //日志记录类
r<9G}9 using System;
8_:j.(n using System.Configuration;
=V>inH using System.Diagnostics;
)&vuT
q'7' using System.IO;
e<+$E%"7hS using System.Text;
6tZ ak1=V using System.Threading;
64LAZEQX [~{'"-3L0 namespace MyEventLog
f[fH1cu&` {
Kv~'*A)d /// <summary>
HnsPXF'8g /// 事件日志记录类,提供事件日志记录支持
K=N8O8R$y /// <remarks>
t/B4?A@C /// 定义了4个日志记录方法 (error, warning, info, trace)
Vf#g~IOI /// </remarks>
o*sss /// </summary>
[!ilcHE) public class ApplicationLog
&qyXi[vw {
?"-1QG /// <summary>
Ny` =]BA /// 将错误信息记录到Win2000/NT事件日志中
C/#?S=w`4 /// <param name="message">需要记录的文本信息</param>
;6}> Shs /// </summary>
0T2^$^g public static void WriteError(String message)
K3xt,g
{
y%!zXK`cl] WriteLog(TraceLevel.Error, message);
{!>'#
F^e }
TD.t) Dn[u zY6 /// <summary>
t>}(`0 /// 将警告信息记录到Win2000/NT事件日志中
UZRN4tru6 /// <param name="message">需要记录的文本信息</param>
z2~\
b3G /// </summary>
dJ.up*aR public static void WriteWarning(String message)
P{+,?X\ {
WJTc/ WriteLog(TraceLevel.Warning, message);
8DGPA }
r)|6H"n#]S 4QBPN@~t /// <summary>
6Wk9"?+1 /// 将提示信息记录到Win2000/NT事件日志中
\OE,(9T2P. /// <param name="message">需要记录的文本信息</param>
wJF(&P /// </summary>
XIBm8IkF public static void WriteInfo(String message)
!uW;Ea? {
aJLc&o 8Yg WriteLog(TraceLevel.Info, message);
M4)Y%EPc }
P!u0_6 /// <summary>
g&r3; /// 将跟踪信息记录到Win2000/NT事件日志中
K^e4w`F| /// <param name="message">需要记录的文本信息</param>
~FnuO!C /// </summary>
+FH@|~^O public static void WriteTrace(String message)
V='A;gs {
#`@5`;U># WriteLog(TraceLevel.Verbose, message);
45Lzq6 }
oq9gFJG( FBeo@ /// <summary>
N nq r{ub /// 格式化记录到事件日志的文本信息格式
)(+q~KA} /// <param name="ex">需要格式化的异常对象</param>
_sAcvKH /// <param name="catchInfo">异常信息标题字符串.</param>
sL],@z8<k /// <retvalue>
{RN-rF3w /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
sB0m^Y' /// </retvalue>
:"'*1S* /// </summary>
O`Y@U?^N public static String FormatException(Exception ex, String catchInfo)
!>\g[C {
KGrYF StringBuilder strBuilder = new StringBuilder();
^VsE2CX if (catchInfo != String.Empty)
WDJ rN {
/BwG\GhM strBuilder.Append(catchInfo).Append("\r\n");
m:Fdgu9 }
lUIh0%O strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
:Z.P0= return strBuilder.ToString();
zNM*xPgS }
2"EaF^?\ zmFS]IOv$ /// <summary>
!@>q^_Gez /// 实际事件日志写入方法
nCDG PzJ /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
2oo\ SmO] /// <param name="messageText">要记录的文本.</param>
J\hqK*/8 /// </summary>
Ze?n Q- private static void WriteLog(TraceLevel level, String messageText)
4mvnFY} {
#<d'=R[AK try
]JQ}9"p=5 {
v >cPr( EventLogEntryType LogEntryType;
L),r\#Y(v switch (level)
"u)Le6. {
\$!D^%~; case TraceLevel.Error:
@$1jp4c
LogEntryType = EventLogEntryType.Error;
G^:?)WRG break;
Kf# iF* case TraceLevel.Warning:
xy-Vw"I[bh LogEntryType = EventLogEntryType.Warning;
nd"$gi break;
B\tm case TraceLevel.Info:
=w7+Yt LogEntryType = EventLogEntryType.Information;
\|C*b< break;
T0N6k acl case TraceLevel.Verbose:
hjz`0AS LogEntryType = EventLogEntryType.SuccessAudit;
p\Fxt1Y@X break;
[e o= default:
UAGh2?q2 LogEntryType = EventLogEntryType.SuccessAudit;
;Irn{O break;
C=t9P#g*. }
O*yA50Cn C(vQR~_ EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
Ro=dgQ0:t //写入事件日志
,I
H~ eventLog.WriteEntry(messageText, LogEntryType);
?3gf)g= DDj:(I?,w }
cNMDI catch {} //忽略任何异常
HMhdK }
:Sn4Pg
`Q } //class ApplicationLog
OVGB7CB]S }
.:O($9^Ho |CAMdU 12.Panel 横向滚动,纵向自动扩展
!Y 9V1oVf" <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
7bQST0 ? T1%}H3 13.回车转换成Tab
^O!;KIe{g <script language="javascript" for="document" event="onkeydown">
TLq^5,qG if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
6?a z event.keyCode=9;
.yHi"ss3 </script>
=t
%;mi,M Ii!{\p! onkeydown="if(event.keyCode==13) event.keyCode=9"
bX
6uGu
7 a%/D~5Z 14.DataGrid超级连接列
~=9S AJr] DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
hFnUw26P )Myx(w"S 15.DataGrid行随鼠标变色
WLiF D. private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
IY|`$sHb {
@|{8/sOq if (e.Item.ItemType!=ListItemType.Header)
S0ltj8t {
:KqSMuKR e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
Jp=
)L e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
7>h(M+
/ }
Ii<k<Bt, }
Y@7n>U q2s=>J'; 16.模板列
*BvdL:t <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
^$]iUb{\ <ITEMTEMPLATE>
#J t1AV <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
K+~1z>& </ITEMTEMPLATE>
RKp9[^/? </ASP:TEMPLATECOLUMN>
ihekON": D=K{(0{"/, <ASP:TEMPLATECOLUMN headertext="选中">
G
@EEh.s9 <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
v`S ;.iD <ITEMTEMPLATE>
O*lE0~rJ <ASP:CHECKBOX id="chkExport" runat="server" />
IC1nR
u2I </ITEMTEMPLATE>
<[$a7l i <EDITITEMTEMPLATE>
z#lIu <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
*=tA },`\7 </EDITITEMTEMPLATE>
Sjo-Xf} </ASP:TEMPLATECOLUMN>
lMcO2006L lbPn< 后台代码
"&o"6ra} protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
dnV&U%fO {
y`z4S, //改变列的选定,实现全选或全不选。
,L4zhhl!_ CheckBox chkExport ;
Yhjv[ 9 if( CheckAll.Checked)
(?ULp{VPFl {
^]Q.V foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
FjMKb {
ev4_}! chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
*9|p}q9n chkExport.Checked = true;
9_8\xLk }
85$ WH }
Bd- &~s^ else
K_k'#j~*? {
))<vCfuz2 foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
S9^SW3 {
3Pp+>{2_? chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
Wf-XH|j[ chkExport.Checked = false;
\.>7w 1p }
<"}t\pT] }
`TH\0/eE }
/qMiv7m~Q `jyyRwSoe 17.数字格式化
a8-V` %Y"pVBc 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
"zkQu <%#Container.DataItem("price","{0:¥#,##0.00}")%>
YV} "# sLFZ61rT int i=123456;
M8$eMS1 string s=i.ToString("###,###.00");
4*IXBi7% h<bhH=6~ 18.日期格式化
w'XN<RWA j\zlp 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
Vbe@S?u- 9JX@ck 显示为: 2004-8-11 19:44:28
7GS4gSd3 1hSV/%v_ 我只想要:2004-8-11 】
Z>3m-:-e <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
1.PN_9% ?\(qA+iP0 应该如何改?
0*+EYnu+ ,k*%=TF7N 【格式化日期】
FBvh7D.hV *$`N5;7'` 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
ZJm$7T)V $ M/1pZ 【日期的验证表达式】
8nL9#b 4jGN:*kZ A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
t0r0{: ^((\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})))?$
+@yU ` oI'& &Bt B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
Ab>Kf r# ^\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]))$
]mz '(t qkz|r?R) 【大小写转换】
/y|ZAN HttpUtility.HtmlEncode(string);
A{M7 HttpUtility.HtmlDecode(string)
iOSt=-p T>7N "C 19.如何设定全局变量
>Vg [A fM|s,'Q1x Global.asax中
}q'IY:r U OGjil{. Application_Start()事件中
v*FbvrY vLBuE 添加Application[属性名] = xxx;
OU}eTc(FeC DVMdRfA 就是你的全局变量
_0FMwC#DY e6mm;@F> 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
D$>&K& *wY+yoj HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
-84%6p2- R4P&r=? 【ASPNETMENU】点击菜单项弹出新窗口
>)G[ww[ YllZ5<} 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
MkjB4:" <?xml version="1.0" encoding="GB2312"?>
"'@D\e} <MenuData ImagesBaseURL="images/">
*3!r &iY <MenuGroup>
w!v^6[! <MenuItem Label="内参信息" URL="Infomation.aspx" >
NZa 7[}H <MenuGroup ID="BBC">
`(`-S
md <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
JbJ!,86 <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
Kf}*Ij ......
j@^zK!mO c
q[nqjC= 最好将你的aspnetmenu升级到1.2版
-Eig#]Se3 =:xX~,qmv 21.读取DataGrid控件TextBox值
UNwjx7usD foreach(DataGrid dgi in yourDataGrid.Items)
BDzAmrO< {
=S\^j" TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
8F[ ;ma>Z8 tb.Text....
4nP4F+ }
nw, .I [ 9S[.ESI{> 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
IVZUB*wv)b @$ Nti> 〖思归〗
<66%(J> <asp:TemplateColumn HeaderText="数量">
TC44*BHq <ItemTemplate>
B!;:,(S~ <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
Mis B&Ok`k onkeyup="javascript:DoCal()"
i$$h6P# />
}9W[7V? Vdefgq@< <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
Y`{62J8oy </ItemTemplate>
%&VI-7+K </asp:TemplateColumn>
(n~fe-?}8 Y\WVkd(+G <asp:TemplateColumn HeaderText="单价">
lY(_e# <ItemTemplate>
>o v#\ <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
=nc;~u|] onkeyup="javascript:DoCal()"
5h^BXX|Y* />
1?^
P=^8 Ejr'Yzl3_ <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
/kK!xe q~5zv4NX </ItemTemplate>
bZ:+q1
D </asp:TemplateColumn>
*PV7s (V&d:tW <asp:TemplateColumn HeaderText="金额">
9}a$0H
h <ItemTemplate>
]\A=[T^ <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
zVf79UrK </ItemTemplate>
On~KTt3Mp </asp:TemplateColumn><script language="javascript">
WcS`T?Xa function DoCal()
)8rF'pxI {
o _l_Yi var e = event.srcElement;
8 >LDo"< var row = e.parentNode.parentNode;
3**t'iWQ var txts = row.all.tags("INPUT");
G4~@ if (!txts.length || txts.length < 3)
VF";p^ return;
L(cKyg[R RSbq<f>BFo var q = txts[txts.length-3].value;
|<,0*2 var p = txts[txts.length-2].value;
8>
$=p4bf (n:A`] if (isNaN(q) || isNaN(p))
XNfl return;
lF.kAEC V!Sm,S( q = parseInt(q);
3{t[>O; p = parseFloat(p);
^'M^0'_"v ,dK)I1"C txts[txts.length-1].value = (q * p).toFixed(2);
@RszPH1B }
H25Qx;(dTk </script>
CueC![pj Sy1O;RTn` 7B\NP`l <%%)C>l Qk>U=]U 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。
H~vrCi~t" page_load
+
jeOZ page.smartNavigation=true
E@xrn+L>- &fWC-| 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 ?
i^iu#WC private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
4k3pm& {
$oM>?h_= for(int i=0;i<e.Item.Cells.Count-1;i++)
1L'Q;?&2H, if(e.Item.ItemType==ListItemType.EditType)
3RGmmX"?G {
`{h)-Y`` e.Item.Cells.Attributes.Add("Width", "80px")
dR< d7 }
EmrkaV-?k }
LL
(TD& .zt&HI.F 26.对话框
vk
X+{n private static string ScriptBegin = "<script language=\"JavaScript\">";
0L8fpGJ private static string ScriptEnd = "</script>";
k+?gWZ\ GiM-8y~ public static void ConfirmMessageBox(string PageTarget,string Content)
Dt(D5A {
OaY89ko string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
){#INmsF [)jNy_4 ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
SJh~4R\ Hd\oV^>
Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
qwJp&6 ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
UjoA$A!Od; //Response.Write(strScript);
(BxmV1 }
w:deQ:k ^,ISz-4 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
D84&=EpVZ Q4LPi;{\ 1.1 取当前年月日时分秒
YG8C<g6E7 currentTime=System.DateTime.Now;
(tVT&eO [:gg3Qzx 1.2 取当前年
{5X,xdzR int 年= DateTime.Now.Year;
_4L6 5fiWo^s} 1.3 取当前月
%bF157X5An int 月= DateTime.Now.Month;
ercXw7{ ,<#Rk'y$ 1.4 取当前日
ys`oHSf int 日= DateTime.Now.Day;
3T0-RP* f R@Cg
sw 1.5 取当前时
%CvVu)tc int 时= DateTime.Now.Hour;
*w _ o8!3- f sh9-iY8e 1.6 取当前分
lkJxb~S int 分= DateTime.Now.Minute;
,K\7y2/ %]0?vw:;j 1.7 取当前秒
et)n`NlcK int 秒= DateTime.Now.Second;
TB.>?*<n] - QY<o| 1.8 取当前毫秒
:n{{\SSIgX int 毫秒= DateTime.Now.Millisecond;
~MH^R1=] L8h!%56s 28.自定义分页代码:
)~R[aXkvY Cx/J_Ro# 先定义变量 :
R?:Q=7K public static int pageCount; //总页面数
~D|,$E tX4 public static int curPageIndex=1; //当前页面
V~/-e- 9u ,C><n
kx 下一页:
_L~ 3h if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
x=7:D {
u=v-,Tw DataGrid1.CurrentPageIndex += 1;
>FOCdlJ# curPageIndex+=1;
Ot\[Ya'' }
Y
?n4#J< d
([~o bind(); // DataGrid1数据绑定函数
yc3/5]E& )}N:t:rry 上一页:
.|go$}Fk if(DataGrid1.CurrentPageIndex >0)
*aM7d>nG5 {
c,;VnZ
9wC DataGrid1.CurrentPageIndex += 1;
_^(1Qb[ curPageIndex-=1;
t'At9<ib }
y6d!?M(0U 579D bind(); // DataGrid1数据绑定函数
\WC,iA%Y +CdUr~6 直接页面跳转:
e>e${\=, int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
Bi
\fB-| IaSPwsvt' if(a<DataGrid1.PageCount)
u4xtlGt5 {
)mwwceN this.DataGrid1.CurrentPageIndex=a;
pA_u;* }
~?aFc)
A~nqSe bind();
P,)D0i ey[Z<i1 29.DataGrid使用:
>M{98NH l]wLQqoO 添加删除确认:
`Rt w'Uz private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
><"|>(y {
N]/cBGy foreach(DataGridItem di in this.DataGrid1.Items)
srN7 {
8g_kZ^<[ if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
g.`Ntsi$wI {
sBI/`dGZV ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
qQDe'f~ }
965 x_
% }
>Q@y8*E\F }
Os>&:{D 4! (Ytr&gh;0 样式交替:
Et}%)M ListItemType itemType = e.Item.ItemType;
K{DmMi];I !=,zy if (itemType == ListItemType.Item )
] WYub1 {
>/4[OPB0R e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
H#YI7l2 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
/"A=Yf }
7Rtjm else if( itemType == ListItemType.AlternatingItem)
qvy*;
<w {
v07A3oj e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
yZp/P %y e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
jGkDD8K [ }
zJ}abo6rVw k.54lNl 添加一个编号列:
U%@C<o
" DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
S`
U, DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
{#?|&n< +(:Qf+: for(int i=0;i<dt.Rows.Count;i++)
(:E@kpK {
S`b!sT-sD dt.Rows["number"]=(i+1).ToString();
;/4x.t#b }
(m!kg DS%]7,g] DataGrid1.DataSource=dt;
O[U`(A: DataGrid1.DataBind();
@.k^ 8hc 9\Ff z& DataGrid1中添加一个CheckBox,页面中添加一个全选框
V73/q private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
PeiRe {
>JA-G@3i foreach(DataGridItem thisitem in DataGrid1.Items)
|LLpG37_ {
|dHtv 6I ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
9wf"5c }
.UX4p
= }
kUGFg{" GL9'dL| 将当前页面中DataGrid1显示的数据全部删除
d#d&CJAfr foreach(DataGridItem thisitem in DataGrid1.Items)
lcpiCZ {
Z VdQ$ if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
E6xdPjoWy {
hfbu+w): string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
{0,6-dd5 Del (strloginid); //删除函数
sx7zRw
>X }
oBub]<.J }
&D-z|ZjgHi U&*%KPy` 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)
9L-jlAo< 1]0;2THx 在Application_Start中添加以下代码:
5Zhl@v,L% Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
KCZ<#ca^ AppSettings["ConnStr"].ToString();
zXlerQWUv jbZTlG 31. 变量.ToString()
I~~":~& )
5Ij 字符型转换 转为字符串
Qp:m=f6@ 12345.ToString("n"); //生成 12,345.00
/ s Apj 12345.ToString("C"); //生成 ¥12,345.00
\@h$|nb 12345.ToString("e"); //生成 1.234500e+004
nLk`W"irM 12345.ToString("f4"); //生成 12345.0000
6/g
82kqpk 12345.ToString("x"); //生成 3039 (16进制)
oVp/EQ 12345.ToString("p"); //生成 1,234,500.00%
rzie_)a Y% 2)$-L'YS 32、变量.Substring(参数1,参数2);
jFKp~`/# (#85<|z 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);
6Xo "?f 1K|F;p 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)
x{ `{j' <SCRIPT language="javascript">
g<^A(zM <!--
|Axbx? function gook(pws)
~bzac2Rp {
*m>[\) frm.submit();
^gyI-S(; }
BaP'y8dVN //-->
tG9C(D`G &F7_0iAP( </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
=)jo}MB <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
v/~&n <tr>
'ks .TS& <td>
6q`)%"4k <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
8n2;47 a <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
<f.Eog <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
{=J: }C["'tLX <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
EAWBgOO8iC <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
%}~(%@qB>+ |9FrVO$M </td>
UNv!G/i-5 /7+b.h])^ </tr>
=\ 5f_g2M G[u6X_Q </form>
tZg)VJQys y>h9:q| 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
pNQ7uy |Go$z3bx 下面是获取用户输入的登陆信息的代码:
aTH$+f1?Q string name;
!RwhVaSh name=Request.QueryString["EmailName"];
y.8nzlkE{ y#`;[! try
aEa+?6;D {
\=|=(kt) int a=name.IndexOf("@",0,name.Length);
vQ2{+5!| f_user.Value=name.Substring(0,a);
e~'z;%O~ f_domain.Value=name.Substring(a+1,name.Length-(a+1));
"dOQ)<; f_pass.Value=Request.QueryString["Psw"];
d2U?rw_ }
v}AjW%rB
hc0 $mit catch
#E\6:UnT {
%8Y+Df;ax Script.Alert("错误的邮箱!");
CHO_3QIz Server.Transfer("index.aspx");
>@?mP$;= }