1. 打开新的窗口并传送参数:
;W?e@ Lgxk #g4X`AHB 传送参数:
nE]R0|4h response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
%,a.431gi :CSys62 接收参数:
[HtU-8: string a = Request.QueryString("id");
l+kI4B7-- string b = Request.QueryString("id1");
-{pcb7.xuv E~2}rK+#) 2.为按钮添加对话框
]5x N^7_!j Button1.Attributes.Add("onclick","return confirm(’确认?’)");
KmEm button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
7\JRHw o&rejj# 3.删除表格选定记录
}pPxN@X int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
mY(~94{d string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
PPDm*,T. @s2z/h0H 4.删除表格记录警告
y M , hF private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
r&0v,WSp&S {
azPFKg+ switch(e.Item.ItemType)
eXnMS!g%Z {
@`$8rck` case ListItemType.Item :
Eo)Q> AM case ListItemType.AlternatingItem :
~8`r.1aUO case ListItemType.EditItem:
e_g7E+6 TableCell myTableCell;
0u
QqPF t myTableCell = e.Item.Cells[14];
b,D+1' LinkButton myDeleteButton ;
& @^|=>L myDeleteButton = (LinkButton)myTableCell.Controls[0];
GpN tvo~ myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
\4~uop,Nb+ break;
76}
N/C default:
0mH>fs 4 break;
(J\"\#/d }
q<r{ps m$*dPje }
nW{).
P ?*tpW75hR[ 5.点击表格行链接另一页
n:`> QY private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
CO0Nq/@ {
,S:g5n >M //点击表格打开
Jmf&&)p if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
~k+-))pf e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
[#)-F_S }
|6"zIHvtc 6jRF[N8 双击表格连接到另一页
xO'1|b^& mxq'A 在itemDataBind事件中
3Q~ng2Wv% if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
puL1A?Y8UM {
-"\z|OQ string OrderItemID =e.item.cells[1].Text;
bf'@sh%W ...
/AjGj*O e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
4ZQXYwfC| }
/tJJ2 =%l _Wk!d3bsx 双击表格打开新一页
#`<|W5 if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
QlSZr[^v {
OY51~#BF string OrderItemID =e.item.cells[1].Text;
'd|_ i6:y& ...
KFLIO>hE e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
F,P,dc }
L 2Os\ Ue^upx ★特别注意:【?id=】 处不能为 【?id =】
or]8;eQ? 6.表格超连接列传递参数
?%iAkV <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
&( b\jyf
<%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
U" aFi F4e<=R 7.表格点击改变颜色
d;
oaG (e if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
[|<|a3']| {
"DjD"?/b e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
}PK8[N
this.style.color=’buttontext’;this.style.cursor=’default’;");
y_Bmd }
g(,gg1mG %=]~5a9 写在DataGrid的_ItemDataBound里
Cc]t*;nU_ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
g.s~Ph- G {
o D*h@yL e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
71@V|$Dy this.style.color=’buttontext’;this.style.cursor=’default’;");
+smPR e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
+K;
X$kB }
tegLGp@_ RnIL>Akp mmu{K$9}I 8.关于日期格式
*t3fbD @L=xY[&{ 日期格式设定
ZvkO#j DataFormatString="{0:yyyy-MM-dd}"
}Rt?p8p <nvz*s 我觉得应该在itembound事件中
!n}"D:L( e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
,+oQ 5c(f Hb#8?{ 9.获取错误信息并到指定页面
wx>BNlT@? `CUTb*{` 不要使用Response.Redirect,而应该使用Server.Transfer
54-sb~] SYw>P1 e.g
: ,fs'! // in global.asax
f*0[[J0] protected void Application_Error(Object sender, EventArgs e) {
38tRb"3zP if (Server.GetLastError() is HttpUnhandledException)
,l_"%xYx Server.Transfer("MyErrorPage.aspx");
TXv3@/>ZlG N*f?A$u/I //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
{uM*.] }
(ye1t96 ^Cst4=:W 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
dli?/U@hO &
VJ+X|Z 10.清空Cookie
[W,Ej Cookie.Expires=[DateTime];
XPBKQm_} Response.Cookies("UserName").Expires = 0
?R(fxx yS0!#AG 11.自定义异常处理
^|5vmI'E //自定义异常处理类
h
rW using System;
D8m1:kU using System.Diagnostics;
~5N0=)
X/}kNW!q namespace MyAppException
r,cV( {
2TXrVaM /// <summary>
Y^M3m'd? /// 从系统异常类ApplicationException继承的应用程序异常处理类。
4[44Eku\ /// 自动将异常内容记录到Windows NT/2000的应用程序日志
_s[ohMlh /// </summary>
_U?
public class AppException:System.ApplicationException
|e!%6Qq3 {
`WboM\u public AppException()
Rp^kD ,* {
h#dp_# if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
]o$aGrZ }
}Y[xj{2$O TTZb. public AppException(string message)
C*a>B,H {
<'>c`80@\* LogEvent(message);
v,I4ozDx }
ve49m%NQ DI{VJ&n66 public AppException(string message,Exception innerException)
E z?O
gE{ {
*39Y1+=)$$ LogEvent(message);
3+ %a if (innerException != null)
S1p4.qJ {
tBd-?+~7 LogEvent(innerException.Message);
0Dv r:]R }
pZ,=iqr }
uZL,+Ce| E#[_"^n //日志记录类
f~%|Iu1ob using System;
}F!tM"X\ using System.Configuration;
iH<:wLY&J using System.Diagnostics;
J&CA#Bg:w using System.IO;
}`ox;Q using System.Text;
oJ734v [X using System.Threading;
Xia4I*
* O`j1~o<{ namespace MyEventLog
Lp.dF)C\ {
97l<9^$ /// <summary>
Gf_Je /// 事件日志记录类,提供事件日志记录支持
?41bZ$j /// <remarks>
|J-Osi /// 定义了4个日志记录方法 (error, warning, info, trace)
eS-akx^@ /// </remarks>
cc- liY" /// </summary>
/>Kd w public class ApplicationLog
6hp>w{+ {
\5M1; /// <summary>
Q=9Ce@[ /// 将错误信息记录到Win2000/NT事件日志中
@`xR1pXQ /// <param name="message">需要记录的文本信息</param>
6|:K1bI) /// </summary>
#J~
public static void WriteError(String message)
h]T {
0`UI^Y~Q WriteLog(TraceLevel.Error, message);
WVyk?SBw }
VUnO&zV{ kn<IWW_t /// <summary>
o5LyBUJ /// 将警告信息记录到Win2000/NT事件日志中
*lyy |3z /// <param name="message">需要记录的文本信息</param>
sB`.G /// </summary>
e}>3<Dh public static void WriteWarning(String message)
]Y111<Ja {
H c,e&R WriteLog(TraceLevel.Warning, message);
Gf71udaa }
v+d}
_rCT hhWIwR /// <summary>
o|`[X' /// 将提示信息记录到Win2000/NT事件日志中
y/i{6P2`,D /// <param name="message">需要记录的文本信息</param>
B0E`C /// </summary>
c(Ws3 public static void WriteInfo(String message)
X!,huB^i {
OD[q
u WriteLog(TraceLevel.Info, message);
3D 4-Wo4 }
(%~^Kmfb0 /// <summary>
Gk:tT1 /// 将跟踪信息记录到Win2000/NT事件日志中
5<U:Yy /// <param name="message">需要记录的文本信息</param>
4N6JKS /// </summary>
eF-U
1ZJT public static void WriteTrace(String message)
R&.mNji* {
fVf
@Ngvu WriteLog(TraceLevel.Verbose, message);
|2ImitN0 }
['m7Wry $,u>, /// <summary>
#No3}O;"g /// 格式化记录到事件日志的文本信息格式
XM1;
>#kz /// <param name="ex">需要格式化的异常对象</param>
x994B@\j+ /// <param name="catchInfo">异常信息标题字符串.</param>
.>#X *u /// <retvalue>
$Mg[e*ct /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
IC"Z.'Ph /// </retvalue>
^+p7\D/E( /// </summary>
Mh"X9-Ot public static String FormatException(Exception ex, String catchInfo)
6mV-+CnYC {
w1Txz4JqB StringBuilder strBuilder = new StringBuilder();
)iX2r{ if (catchInfo != String.Empty)
U}T{r%9 {
s!<RWy+ strBuilder.Append(catchInfo).Append("\r\n");
z@I'Ryalyc }
C&|K7Zp0v strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
jYUN: return strBuilder.ToString();
L:j3 }
?7=c` 4SVIdSA /// <summary>
[[$dPa9 /// 实际事件日志写入方法
=xw+cs1,x /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
] M`%@ps /// <param name="messageText">要记录的文本.</param>
ylm #Xa /// </summary>
7+9o<j@@o private static void WriteLog(TraceLevel level, String messageText)
HK
NT. a {
gFpub_ try
r[g {
^'\JI EventLogEntryType LogEntryType;
"UX/yLc3( switch (level)
@yM$Et5 {
@U+#@6 case TraceLevel.Error:
C19}Y4r: LogEntryType = EventLogEntryType.Error;
t)|~8xpP break;
]f{3_M[ case TraceLevel.Warning:
HmiG%1+{A LogEntryType = EventLogEntryType.Warning;
%@9c'6 break;
v}LI-~M>U case TraceLevel.Info:
:
&bJMzB LogEntryType = EventLogEntryType.Information;
sZx`u+ break;
k?Kt*T case TraceLevel.Verbose:
S=}1k,I LogEntryType = EventLogEntryType.SuccessAudit;
brCXimG&jo break;
'Zs3b4n8 default:
{oSdVRI LogEntryType = EventLogEntryType.SuccessAudit;
p$=Z0p4%LL break;
KFgq3snH }
$J8g)cS / 3eGt7x# EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
OxQ 5P;O //写入事件日志
&V|kv"Wwj eventLog.WriteEntry(messageText, LogEntryType);
.Hnhd/ c cgnMoBIc }
LLc^SP j catch {} //忽略任何异常
oN2#Jh%dH }
xkC M*5: } //class ApplicationLog
/!?b&N/d) }
EHy 15RL D V\7KKJE 12.Panel 横向滚动,纵向自动扩展
qjObu\r <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
~R&rQJJeJ :.9Y 13.回车转换成Tab
U&i#cF <script language="javascript" for="document" event="onkeydown">
Z`_x|cU?J if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
Y'{}L@"t event.keyCode=9;
tD*k
</script>
)T6:@n^]h %QG3~b%
h onkeydown="if(event.keyCode==13) event.keyCode=9"
uK]-m 5dGfO:Dy_ 14.DataGrid超级连接列
<6Y|vEo!N DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
A9lw^. yAAV,?:o[ 15.DataGrid行随鼠标变色
#+QJ5VI: private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
uI$n7\G! {
mPU}]1*p if (e.Item.ItemType!=ListItemType.Header)
@F]w]d {
SwsJ<Dq^z e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
wFF,rUV e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
3?K+wg s }
wz1nV} }
-oUGmV_ #|K{txC
16.模板列
tm/=Oc1p <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
,4S[<(T" <ITEMTEMPLATE>
\=D+7'3 <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
+oh |r'~ </ITEMTEMPLATE>
Nyt*mbd5
{ </ASP:TEMPLATECOLUMN>
k-H6c [;yKbw!C <ASP:TEMPLATECOLUMN headertext="选中">
MJh.)kd$ <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
_CPj]m{ <ITEMTEMPLATE>
[O<F `u"a <ASP:CHECKBOX id="chkExport" runat="server" />
oP`:NCj\9 </ITEMTEMPLATE>
z
.Z <EDITITEMTEMPLATE>
Mq#m;v$E <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
43E)ltR=] </EDITITEMTEMPLATE>
9Nps<+K </ASP:TEMPLATECOLUMN>
X1d{7H8A2 5kGQf 后台代码
w[F})u]E protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
(a0(ZOKH {
Mk~U/oq //改变列的选定,实现全选或全不选。
T ay226 CheckBox chkExport ;
zJP jsD] if( CheckAll.Checked)
<o9AjASv\, {
$@@ii+W}\ foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
k,$/l1D {
|fywqQFq chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
bfpeK>T chkExport.Checked = true;
3b\s;! }
]?)uYot }
c&1_lI,tH else
(V&8
WN {
pj<aMh foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
Dt<MEpbur {
$K+|bb chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
{ TI,|'>5[ chkExport.Checked = false;
+_ /ys! }
L){V(*K ' }
c]Gs{V]\ }
2z*}fkJ Z'`\N@c# 17.数字格式化
gm
pY[ `*[\b9> 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
Y#I8gzv <%#Container.DataItem("price","{0:¥#,##0.00}")%>
yZ{N$ch5b p:4-b"O int i=123456;
?A;RTM string s=i.ToString("###,###.00");
O:8
u^TP h<)ceD<, 18.日期格式化
qE3Ud:j +L"F] _? 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
'zav%}b]L +'SL5d* 显示为: 2004-8-11 19:44:28
8G3 Z,8P4( 1) K<x 我只想要:2004-8-11 】
mhv6.W@ <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
Qy"%%keV'T EcX7wrl9x 应该如何改?
34X]b[^ jygUf| 【格式化日期】
EZ{{p+e^
5Pq6X 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
C$K?4$ J~xm[^0 【日期的验证表达式】
`q\F C[W /k?l%AH A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
H{yBDxw ^((\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})))?$
?*$uj( {ZSAPq4)L B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
bDIhI}P ^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$
yUf`L=C: b$0;fEvIJn 【大小写转换】
Q!3-P HttpUtility.HtmlEncode(string);
/s%-c!o^ HttpUtility.HtmlDecode(string)
)X," NJG ygV_"=+|N 19.如何设定全局变量
w)* H&8h@ 0FE_><e Global.asax中
+zbCYA :R
+BC2x Application_Start()事件中
n 7B2rRJH lK/4"& 添加Application[属性名] = xxx;
,aD~7QX1: J zFR9DEt 就是你的全局变量
*~4<CP+"0 .SmG) 5U] 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
88<d<)7t yPT o,,ca= HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
{`k&Q +gY d&L 【ASPNETMENU】点击菜单项弹出新窗口
olr#3te ;7EeR M* 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
5#x[rr{^* <?xml version="1.0" encoding="GB2312"?>
9>0OpgvC( <MenuData ImagesBaseURL="images/">
nu:l;+,VY <MenuGroup>
cUP1Uolvn <MenuItem Label="内参信息" URL="Infomation.aspx" >
h5T~dGRlR <MenuGroup ID="BBC">
Yc?S< <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
j~S=kYrGM <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
g"Hl 30o ......
3?<A]"X. }6pr.-J 最好将你的aspnetmenu升级到1.2版
h4itXJy52B 5(\/ b<# 21.读取DataGrid控件TextBox值
'AWWdz foreach(DataGrid dgi in yourDataGrid.Items)
zt9A-%
\R {
9=6BQ`u TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
UroC8Tm tb.Text....
2"|7 YI }
t' J4zV 82+2PE{ 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
'Lu xF1> _a9oHg 〖思归〗
%-$
:/N <asp:TemplateColumn HeaderText="数量">
nv+miyvvm <ItemTemplate>
9@lG{9id? <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
nj00g>:> onkeyup="javascript:DoCal()"
As5l36 />
M6quPj I(kEvfxc" <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
8-H:5E 4Y </ItemTemplate>
yxT}hMa </asp:TemplateColumn>
R rH{Y0 |H,WFw1%} <asp:TemplateColumn HeaderText="单价">
[>_zV.X <ItemTemplate>
9bRUN< <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
;5$ GJu( onkeyup="javascript:DoCal()"
nL[OwfPj />
vg3iT} eHKb`K7C. <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
|"KdW#.x a(|0'^ </ItemTemplate>
;XyryCo </asp:TemplateColumn>
DzA'MX u+z <asp:TemplateColumn HeaderText="金额">
eJn_gKWb <ItemTemplate>
K?e16; <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
[~cz|C# </ItemTemplate>
K0o${%'@7 </asp:TemplateColumn><script language="javascript">
wpC.!T function DoCal()
+_vf=d {
=zrfh-lwH var e = event.srcElement;
@c"s6h& var row = e.parentNode.parentNode;
eHGx00: var txts = row.all.tags("INPUT");
5kWzD'!^ if (!txts.length || txts.length < 3)
@].!}tz return;
@p/"]zf k#~oagW_Gw var q = txts[txts.length-3].value;
AY"wEyNU var p = txts[txts.length-2].value;
sUR5Q/Q FqGMHM\J if (isNaN(q) || isNaN(p))
i4WHjeo\ return;
<C;TGA 0t"Iq71/ q = parseInt(q);
m~W[,7NE0& p = parseFloat(p);
#u+qV!4 Y=_*Ai txts[txts.length-1].value = (q * p).toFixed(2);
pmurG }
2h]CZD4 </script>
[4bE"u W?!rqo2SP GcA|JS=> wL]#]DiE 2?:OsA} 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。
(d,OLng page_load
8yDsl page.smartNavigation=true
So ~QZ%YA Jy"\_Vvl 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 ?
20haA0s private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
yt,Ky8y1 {
U7g,@/Qx for(int i=0;i<e.Item.Cells.Count-1;i++)
&w`Ho)P if(e.Item.ItemType==ListItemType.EditType)
w@6y.v1I{ {
eTw9c }[ e.Item.Cells.Attributes.Add("Width", "80px")
i eWXr4@: }
XhWo~zh" }
lk81IhI y0?HZ Xq 26.对话框
(|<+yQ,@> private static string ScriptBegin = "<script language=\"JavaScript\">";
cH:&S=>h private static string ScriptEnd = "</script>";
kz("LI] o@[o6.B< public static void ConfirmMessageBox(string PageTarget,string Content)
+R;LHRS% {
SD8>, string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
umAO&S.+M 8cMX=P ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
<s|.2~ ci:|x = Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
|)0Ta9~ ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
(n2_HePE //Response.Write(strScript);
3,*A VcQA }
"H@I~X=
h#)\K|
qs 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
luac |f1^&97=+ 1.1 取当前年月日时分秒
2>9..c currentTime=System.DateTime.Now;
FjiIB1
T s`[V{1m, 1.2 取当前年
h -091N int 年= DateTime.Now.Year;
L*4=b
(3 pEN`6* 1.3 取当前月
t,0}}9%? int 月= DateTime.Now.Month;
\h0+`
;Q +7
j/.R 1.4 取当前日
Lc]hwMGR* int 日= DateTime.Now.Day;
dN:^RCFzS fk1d iB 1.5 取当前时
!Z{7X ^ int 时= DateTime.Now.Hour;
Vu4LC&q \`2EfYJ{ 1.6 取当前分
*u,xBC2C int 分= DateTime.Now.Minute;
k,<7)- ]-a/)8 1.7 取当前秒
G-]<+-Q$4 int 秒= DateTime.Now.Second;
OR'e!{ C8)s6 1.8 取当前毫秒
usoyH0t!? int 毫秒= DateTime.Now.Millisecond;
qx*b\6Rt [0kZyjCq@ 28.自定义分页代码:
8ql<7RTM! 4OO^%`=)M' 先定义变量 :
{9j0k`A public static int pageCount; //总页面数
x5;D'Y t"| public static int curPageIndex=1; //当前页面
Q?([# KiE'O{Y 下一页:
/M3;~sx if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
RX^8`}N {
Rp:I&f$Hk/ DataGrid1.CurrentPageIndex += 1;
)Wt&*WMFXl curPageIndex+=1;
@ <4 U & }
l>BM}hS CQ Ei(ty bind(); // DataGrid1数据绑定函数
10r!p:D **AkpV) 上一页:
yOXEP if(DataGrid1.CurrentPageIndex >0)
4&e<Sc64 {
ma QxU( DataGrid1.CurrentPageIndex += 1;
e8xNZG; curPageIndex-=1;
jJ2{g> P0P }
xH,e$t#@@~ 0lOan bind(); // DataGrid1数据绑定函数
4W E)2vkS >lek@euqw 直接页面跳转:
I)r6*|mz int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
e85E+S% MAX?,-x if(a<DataGrid1.PageCount)
9q&~!>lt {
gF293Ez this.DataGrid1.CurrentPageIndex=a;
q%]5/.J }
+R{~%ZTK Wap\J7NY bind();
W4( d}Y#l}!E6 29.DataGrid使用:
A5%Now;.cf E\9HZ;}G 添加删除确认:
Y(T$k9%}+ private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
J5Q.v; {
Klu0m~X@ foreach(DataGridItem di in this.DataGrid1.Items)
@q@I(%_` {
{S@,
, if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
u'T>Y1I {
:qShP3 ^ ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
W!=ur,F+ }
3(*vZ }
{`>pigo }
W%9~'pXgB W+s3rS2 样式交替:
[3tU0BU" ListItemType itemType = e.Item.ItemType;
3fYfj q"f7$ if (itemType == ListItemType.Item )
$t5>1G1j7 {
c7tO'`q$e e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
c@j3L23B e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
.~^A!t }
lD#
yXLaC\ else if( itemType == ListItemType.AlternatingItem)
~~p )_ {
ir|L@Jj, e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
4Y
G\<Zf e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
{8%KO1xB }
HuN_$aP 4>B=k 添加一个编号列:
(Bpn9}F-V. DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
R-4#y%k< DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
<p`
F/p- Dv^M/z2&[ for(int i=0;i<dt.Rows.Count;i++)
k@>(sXs {
)hVn/*mH dt.Rows["number"]=(i+1).ToString();
o?#-Tkb }
wjOJn] $}0\sj% DataGrid1.DataSource=dt;
yVpru8+eD DataGrid1.DataBind();
|gT8 QP R"z}q(O: DataGrid1中添加一个CheckBox,页面中添加一个全选框
^ZBTd5t# private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
/}eb1o {
i0?/\@gd foreach(DataGridItem thisitem in DataGrid1.Items)
E 429<LQI/ {
3_{rXtT)' ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
usi3z9P>n }
#nj;F'O]( }
z\WyL ; ScT{Tb]9bt 将当前页面中DataGrid1显示的数据全部删除
PHH,vO[eO foreach(DataGridItem thisitem in DataGrid1.Items)
md/h\o& {
7$R^u7DZ if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
Tj6Czq=*%T {
ZF<$6"4N string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
tq*6]q8c> Del (strloginid); //删除函数
}Cb-7/ }
@FRas00)| }
I(/*pa?m{ q[. p(6: 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
-f<}lhmQ =C7<I 在Application_Start中添加以下代码:
"837b/>/ Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
= ^%*: iT AppSettings["ConnStr"].ToString();
h=kC3ot\ 4`+R
|"4 31. 变量.ToString()
q1rD>n&d %."w]fy>P 字符型转换 转为字符串
\@{TF((Y 12345.ToString("n"); //生成 12,345.00
idjk uB(6 12345.ToString("C"); //生成 ¥12,345.00
v++&% 12345.ToString("e"); //生成 1.234500e+004
{~'Iu8TvZ 12345.ToString("f4"); //生成 12345.0000
O`9vEovjs 12345.ToString("x"); //生成 3039 (16进制)
1V,DcolRY 12345.ToString("p"); //生成 1,234,500.00%
sP>-k7K. 1T4#+kW& 32、变量.Substring(参数1,参数2);
b
|ijkys rWN%j)#+ 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
VwLo *c(YlfeZ# 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
+h1X-K:I <SCRIPT language="javascript">
n<A<Xj08T9 <!--
hN\Q&F! function gook(pws)
p y%:,hi {
X'/'r.b6 frm.submit();
wf^p?=Ke }
12tAx3p //-->
rX?%{M,xFw ]r\!Z
<<( </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
'*G8;91u <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
r( bA>L*mk <tr>
}Am5b@g"$Y <td>
$OzVo&P; <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
R)=){SI:1) <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
/:C<{m.[} <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
o"p['m*g nIfp0U* <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
Jpn= ^f[rm <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
j=u)
z7J L=I;0Ip9y </td>
2~yj
=D27Z P<LmCYm </tr>
ZT<VDcP{ ~sNBklK </form>
sH%Ts@Pl wZ_"@j< 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。
_C,9c7K4 `r %lB 下面是获取用户输入的登陆信息的代码:
_9<Mo;C string name;
ehZ/J5 name=Request.QueryString["EmailName"];
kR8,E 6Up 5?f!hB|6 try
EZZE(dq@gf {
qCF&o7*oN int a=name.IndexOf("@",0,name.Length);
^W~8)Rbf f_user.Value=name.Substring(0,a);
VU+=b+B~m f_domain.Value=name.Substring(a+1,name.Length-(a+1));
w8`B}Dr23 f_pass.Value=Request.QueryString["Psw"];
jcRe), }
@qB>qD~WsD $s"-r9@q catch
V \/Qik{h {
4Zn [F^p Script.Alert("错误的邮箱!");
ffsF], _J Server.Transfer("index.aspx");
FRsp?i
K) }