1. 打开新的窗口并传送参数:
pdha"EV ^21f^>k( 传送参数:
5F sj_wFk response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
= 4WZr Nl<,rD+KSD 接收参数:
^}7t: string a = Request.QueryString("id");
7RFkHME string b = Request.QueryString("id1");
IS
9q 5/] p>tdJjnt 2.为按钮添加对话框
f<sPh>n
Button1.Attributes.Add("onclick","return confirm(’确认?’)");
d<'Yt|zt button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
s1\BjSzk W>wi;Gf# 3.删除表格选定记录
2-c0/?_4 int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
d~Ry> string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
^t
ldm7{_ Bpo68%dx89 4.删除表格记录警告
S=amj cC private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
|j}F$*SE[ {
J$/BH\ switch(e.Item.ItemType)
h5JwB<8 {
r4ttEJ-jG case ListItemType.Item :
~rX6owBq case ListItemType.AlternatingItem :
%e<dV\x?T case ListItemType.EditItem:
u\geD TableCell myTableCell;
^`MDP`M; myTableCell = e.Item.Cells[14];
~d `4W<1a LinkButton myDeleteButton ;
7c]Ai myDeleteButton = (LinkButton)myTableCell.Controls[0];
U@5Z9/n{ myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
jh&vq=PH break;
C$ `Y[w default:
h}&IlDG break;
N_Ld,J%g }
`h3}"js 9Zsb1 M!n> }
XK-x*| ,wo"(E!4e 5.点击表格行链接另一页
hsO.521g private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
d@f2Vxe7 {
vGHYB1=~ //点击表格打开
T>%ny\?tHW if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
bCe-0!Q e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
T`ZJ=gv }
sLqvDH?V X@q1;J 双击表格连接到另一页
Lbp6I0&n l4reG:uYG 在itemDataBind事件中
xi. KD if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
X3O$Sd(D {
Z2jb>% string OrderItemID =e.item.cells[1].Text;
`80Hxp@ ...
5@%-=87S e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
5m?$\h }
/(pChY> }/0dfes 双击表格打开新一页
yZ0ZP if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
+M&S {
Y mjS!H string OrderItemID =e.item.cells[1].Text;
mM{v>Em2K# ...
~Fb?h%w e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
;O|63 }
k\%v;3nBK 9,eR=M]+: ★特别注意:【?id=】 处不能为 【?id =】
g9Gy3zk= 6.表格超连接列传递参数
r$Qh`[< <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
K)\gbQ| <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
'k Z1&_{ ah9',( (! 7.表格点击改变颜色
u*N8s[s' if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
!z
5d+ M {
S5a<L_ e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
qDd/wR,44 this.style.color=’buttontext’;this.style.cursor=’default’;");
fr2w k}/b }
(#M$t!'% iZ\z!tH R 写在DataGrid的_ItemDataBound里
-JK4-Hg if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
n`Iy7X {
"<a|Q ,! e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
!r0P\ this.style.color=’buttontext’;this.style.cursor=’default’;");
D~&e.y/gHN e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
vGT.(:\-, }
{K8T5zrV j!7Uj] [`\Qte%UH 8.关于日期格式
Vnb#N4vR 3[Iw%% q 日期格式设定
)6+W6: DataFormatString="{0:yyyy-MM-dd}"
AI; =k F
&}V65 我觉得应该在itembound事件中
~U+'3.Wo e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
0|;=mYa4M rNyK*Wjt 9.获取错误信息并到指定页面
MV\zwH TLgVuY 不要使用Response.Redirect,而应该使用Server.Transfer
p
n>`v R,1 ,4XT e.g
6|}mTG^ // in global.asax
b.;}Hq> protected void Application_Error(Object sender, EventArgs e) {
Tj9q(Vq if (Server.GetLastError() is HttpUnhandledException)
e*s{/a?, Server.Transfer("MyErrorPage.aspx");
\9QOrjiw V1A3l{>L //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
-#x\ E%v.F }
.y+U7"?s* ),,vu 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
5-^twXC& +KNr1rG 10.清空Cookie
c
@fc7 Cookie.Expires=[DateTime];
j]&{ @Y Response.Cookies("UserName").Expires = 0
G].KJ5,y
'VEpVo/ 11.自定义异常处理
{hz:[ //自定义异常处理类
o7zfD94I using System;
6u7wfAf using System.Diagnostics;
qr6jn14.c */E{s? namespace MyAppException
fif<[Ax {
_yUFe& /// <summary>
[=+/ /// 从系统异常类ApplicationException继承的应用程序异常处理类。
^&HYnwk /// 自动将异常内容记录到Windows NT/2000的应用程序日志
e,8-P-h~T /// </summary>
cC.DBYV+- public class AppException:System.ApplicationException
idy:Jei} {
y9)",G! public AppException()
T1=M6iJ {
:TI1tJS~* if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
z?,5v`,t2 }
<bI,y_<K ? Q}{&J public AppException(string message)
=w-H ) {
EA.U>5Fq LogEvent(message);
;zDc0qpw }
to7)gOX( mGvP9E"& public AppException(string message,Exception innerException)
4>* `26 {
Vk-_H)*r LogEvent(message);
W:\VFPf2 if (innerException != null)
gzF&7trN {
.~J^`/o LogEvent(innerException.Message);
YSyW '~!b }
PAkW[;GSDh }
E"=$p$k Sdp1h0E}7= //日志记录类
}q9f,mz using System;
<lR8MqjM_ using System.Configuration;
Hr$5B2' using System.Diagnostics;
I2'?~Lt using System.IO;
$hio(
using System.Text;
gp=0;#4
4 using System.Threading;
o1\8>Ew *OiHrI9y namespace MyEventLog
0i"OG( , {
O5
SX"A /// <summary>
?*,q#ZkA9W /// 事件日志记录类,提供事件日志记录支持
^MUM04l /// <remarks>
?9+;[X /// 定义了4个日志记录方法 (error, warning, info, trace)
UlrY /// </remarks>
FhGbQJ?[3 /// </summary>
)f
Rh^6 public class ApplicationLog
nj
mE>2 {
7Y/_/t~Y /// <summary>
qM+T Wp /// 将错误信息记录到Win2000/NT事件日志中
8@-US ,| /// <param name="message">需要记录的文本信息</param>
k"J?-1L /// </summary>
zVu}7v() public static void WriteError(String message)
OK=t)6&b {
^-ZqS WriteLog(TraceLevel.Error, message);
o/R-1\Dn }
;q Z2V K#jm6Xh?E /// <summary>
I /g]9
y /// 将警告信息记录到Win2000/NT事件日志中
6F2}|c /// <param name="message">需要记录的文本信息</param>
#LiC@> /// </summary>
RMXP)[ public static void WriteWarning(String message)
^d,d<Uc {
wr`eBPu WriteLog(TraceLevel.Warning, message);
v|6fqG+Q\ }
N*fN&0r ?=/l@ d /// <summary>
+\4=G@P.J /// 将提示信息记录到Win2000/NT事件日志中
DcS~@ ; /// <param name="message">需要记录的文本信息</param>
6%TV X /// </summary>
\T0`GpE public static void WriteInfo(String message)
X`&E,;bIb {
eW/Hn WriteLog(TraceLevel.Info, message);
Ax
^9J)C }
Eq
t61O$x /// <summary>
dSbV{*B;> /// 将跟踪信息记录到Win2000/NT事件日志中
-t]0DsPg /// <param name="message">需要记录的文本信息</param>
# /T)9 =m /// </summary>
<3HJkcYGz public static void WriteTrace(String message)
u|e2T@t= {
5s;#C/ZZ WriteLog(TraceLevel.Verbose, message);
c!zu0\[Id }
W8)GT`\ 8g\.1<~ /// <summary>
_>s.V`N' /// 格式化记录到事件日志的文本信息格式
Ab`G b /// <param name="ex">需要格式化的异常对象</param>
#ed]zI9O /// <param name="catchInfo">异常信息标题字符串.</param>
6*$N@>8& /// <retvalue>
y^ohns5{ /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
AWw'pgTQX /// </retvalue>
)jg3`I@ /// </summary>
,~v1NK* public static String FormatException(Exception ex, String catchInfo)
\2Yh I0skW {
b~r ?#2K StringBuilder strBuilder = new StringBuilder();
79\
=)m}$Q if (catchInfo != String.Empty)
V;$lgTs|' {
?S"xR0 * strBuilder.Append(catchInfo).Append("\r\n");
\a<E3
< }
AK[c!mzx strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
52oR^| return strBuilder.ToString();
>a,w8 ^7 }
q+<TD#xoL Gv`PCA@/d /// <summary>
CXa$QSu > /// 实际事件日志写入方法
~/t#J /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
6(.&y; /// <param name="messageText">要记录的文本.</param>
-szvO_UP /// </summary>
=3FXU{"Qi4 private static void WriteLog(TraceLevel level, String messageText)
\-^3Pe, {
dpy,;nqzeN try
k,2%%m {
d97wiE/i< EventLogEntryType LogEntryType;
*fE5Z;!} switch (level)
*{uu_O {
)[A}h'J) case TraceLevel.Error:
+ EM '- LogEntryType = EventLogEntryType.Error;
7Ev~yY;N break;
jk~<si case TraceLevel.Warning:
Q9(
eH2= LogEntryType = EventLogEntryType.Warning;
m#uutomi0 break;
9rhz#w case TraceLevel.Info:
bp }~{]:b LogEntryType = EventLogEntryType.Information;
17-K~ybc break;
@ ~PL|Pp_ case TraceLevel.Verbose:
xMe[/7)4 LogEntryType = EventLogEntryType.SuccessAudit;
&4DWLI break;
<3i!{"} default:
gX[6WB"p LogEntryType = EventLogEntryType.SuccessAudit;
y<)x`&pcD break;
EM"YjC)F }
#6JG#!W a}6Wo= EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
[K^RC;}nV^ //写入事件日志
'INdZ8j_ eventLog.WriteEntry(messageText, LogEntryType);
tYnNOK*| xSw ^v6!2 }
oC[$PPqX# catch {} //忽略任何异常
+?%huJYK, }
86[TBX5' } //class ApplicationLog
s+aeP }
;:v:pg8qc <MoWS9s!yb 12.Panel 横向滚动,纵向自动扩展
|',Gy\Sj <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
B7cXbUAQs By"
=]|Q 13.回车转换成Tab
}_K7}] 1 <script language="javascript" for="document" event="onkeydown">
JD.WH|sZ5 if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
?>2k>~xlQ event.keyCode=9;
hW(Mf </script>
m!g
f! vFQ'sd]C onkeydown="if(event.keyCode==13) event.keyCode=9"
b?y3m +V` =YR/|9( 14.DataGrid超级连接列
9\V^q9l DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
1%H]2@ 8!1vsEqv 15.DataGrid行随鼠标变色
=^NR(:SaaU private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
M5wj79'l" {
`C,47 9~J if (e.Item.ItemType!=ListItemType.Header)
SwLul4V {
h&&ufF]D e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
TwY]c<t e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
4~D?F'o }
d&F8nBIM5 }
^ [2A<
g k5(@n>p 16.模板列
I
U/gYFT <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
Po% V%~ <ITEMTEMPLATE>
Ig~lD>dnr' <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
Or0=:?4` </ITEMTEMPLATE>
p"w"/[8 </ASP:TEMPLATECOLUMN>
Ye T[KjX $`mxOcBmQ <ASP:TEMPLATECOLUMN headertext="选中">
fs\l*nBig <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
g$~ktr+% <ITEMTEMPLATE>
LyH{{+V <ASP:CHECKBOX id="chkExport" runat="server" />
\It8+^d@ </ITEMTEMPLATE>
SO9j/ <EDITITEMTEMPLATE>
2ACN5lyUS <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
L'.7V ~b{ </EDITITEMTEMPLATE>
525W;
mu{ </ASP:TEMPLATECOLUMN>
Tmqtj `|[Q]+Mx 后台代码
u`3J2,. protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
4Z,MqG> {
?(H/a-(:v} //改变列的选定,实现全选或全不选。
>k5nU^|B1 CheckBox chkExport ;
Ab/gY$l if( CheckAll.Checked)
}/Pz1,/ {
]:d`=V\&N foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
}[k~JXt {
V0XQG} chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
ng"R[/)In chkExport.Checked = true;
xM'bb5 }
b 'jZ4{+W }
/{6PwlP5 else
P-.>vi^+ {
7']n_-fu foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
IOtSAf {
'(r/@%=U chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
!K'j[cA^ chkExport.Checked = false;
P;C3{>G9 }
h,"K+$ }
LY(YgqL }
"8>T kZfa8wL]P 17.数字格式化
E0[ec6^qwY q,(U 8 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
v'mRch)d <%#Container.DataItem("price","{0:¥#,##0.00}")%>
BagO0# u1R_u9 int i=123456;
jhl9 string s=i.ToString("###,###.00");
iv*`.9TK- gMS-mkZ 18.日期格式化
3 -Nwg9U Gm~jC < 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
ErnjIx: L)p*D( 显示为: 2004-8-11 19:44:28
kZ~ 0fw- <b!nI
N 我只想要:2004-8-11 】
qbrY5;U <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
-PPH]?], t"4RGO)jh 应该如何改?
yhxen %5Q5xw]w3 【格式化日期】
~gg(i"V o`,|{K$H 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
6aRPm% g<(3wL," 【日期的验证表达式】
LhO%^`vu z><uYO$ A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
M$iDaEu- ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
2[-@
.gH _$g6Mj]1z B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
iZm#
"}VG ^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$
4LO4SYW7 YW9r'{(D(I 【大小写转换】
B8_)I. HttpUtility.HtmlEncode(string);
WZ,}]D HttpUtility.HtmlDecode(string)
Vz_ac
vfk^ b|jdYJbol& 19.如何设定全局变量
IsP-[0it J8IdQ:4^l Global.asax中
P5-1z&9O 0se0AcrW Application_Start()事件中
ts|dk% A8tzIh8 添加Application[属性名] = xxx;
zB/#[~ 3h N?l
:/b 就是你的全局变量
Zcst$Aro =ie8{j2: 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
Lxz!>JO> c$fi3O HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
cC@.& D#"BY;
J 【ASPNETMENU】点击菜单项弹出新窗口
YNHQbsZUI, dZ^(e0& :H 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
_7e ^
t N <?xml version="1.0" encoding="GB2312"?>
ye?4^@u u <MenuData ImagesBaseURL="images/">
~hiJOaCzM <MenuGroup>
"wwAbU< <MenuItem Label="内参信息" URL="Infomation.aspx" >
t3LRmjL <MenuGroup ID="BBC">
H[oCI|k <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
"MS}@NLUW <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
Jzu U
k ......
o9GtS$O\ xAlyik
最好将你的aspnetmenu升级到1.2版
DPV>2'
fV XL=Y~7b 21.读取DataGrid控件TextBox值
'DLgOUvh foreach(DataGrid dgi in yourDataGrid.Items)
iB-h3/ {
<;eXbO>Q TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
;&iZ{ tb.Text....
.0ov>4,R }
ayGYVYi GTYCNi66 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
9c p jO R k'5L 〖思归〗
F6'[8f <asp:TemplateColumn HeaderText="数量">
WxE^S ??| <ItemTemplate>
VKGH+j[ <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
HV0! G-h onkeyup="javascript:DoCal()"
A8|DB@Bi />
X1wlOE s<#["K*_ <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
{Tr5M o </ItemTemplate>
BeR7LV </asp:TemplateColumn>
Aho zrroV ,?k0~fuG6 <asp:TemplateColumn HeaderText="单价">
t 0 omJP <ItemTemplate>
0;J#".(KQ <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
8VWkUsOoI onkeyup="javascript:DoCal()"
"K Or)QD/ />
iwiHw ` @PHV <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
40?xu#" <q}w, XU </ItemTemplate>
PJ$C$G </asp:TemplateColumn>
Uj/m #saK8; tp <asp:TemplateColumn HeaderText="金额">
='rSB.$Ctk <ItemTemplate>
7A,QA5G]C <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
>0XB7sC </ItemTemplate>
U-]Rm}X\M </asp:TemplateColumn><script language="javascript">
n PAl8 function DoCal()
?@@BIg- {
EdC^L`:: var e = event.srcElement;
Jm#mC var row = e.parentNode.parentNode;
}Cs.Hm0P var txts = row.all.tags("INPUT");
r}>q*yx: if (!txts.length || txts.length < 3)
b '9L}q2m return;
9e aqq n "J+?~9 var q = txts[txts.length-3].value;
DTx!# [ var p = txts[txts.length-2].value;
UZ*Yt *m>XtBw. if (isNaN(q) || isNaN(p))
jIvSjlm I return;
O,D/&0 \c1NIuJR q = parseInt(q);
178u4$# b p = parseFloat(p);
:6T8\W AcoU.tpP txts[txts.length-1].value = (q * p).toFixed(2);
iHYvH
}
RX"~m!26
</script>
<w1#3Mu' +t8{aaV pBR9)T\n dv7IHUFf l<DpcLX 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。
?7eD<| page_load
B*
hW page.smartNavigation=true
q@@C|oqEX P}2waJe 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 ?
*LA2@9l private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
H)@f_pfj( {
$D%[}[2 for(int i=0;i<e.Item.Cells.Count-1;i++)
,suC`)R if(e.Item.ItemType==ListItemType.EditType)
#P,C9OQD {
+`(,1L1 e.Item.Cells.Attributes.Add("Width", "80px")
$qp,7RW }
_v\L'`bif }
(\qO~)[0 wOg?.6<Kxa 26.对话框
vR*TW private static string ScriptBegin = "<script language=\"JavaScript\">";
sM _m private static string ScriptEnd = "</script>";
CS\ E]f =Z~ nzyaN public static void ConfirmMessageBox(string PageTarget,string Content)
=7l'3z8 {
{E3329t|' string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
;zpSyyp@ 13f@Ox$ ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
_?m%i]~o 7[/1uI9U8K Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
7j//x Tr}a ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
-ge :y2R_w //Response.Write(strScript);
Xlp $xp" }
W]aX}>0 jn:9Cr,o;g 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
qiyX{J7Z OtsW>L@ O( 1.1 取当前年月日时分秒
.$s>b#m O currentTime=System.DateTime.Now;
Osj/={7g ^?Y x{r~9 1.2 取当前年
FVo_=O) int 年= DateTime.Now.Year;
h,Nq:"} ^ALR.N+< 1.3 取当前月
6~O9|s^38w int 月= DateTime.Now.Month;
/l.ox.4z# x[m&ILr 1.4 取当前日
I}!ErV int 日= DateTime.Now.Day;
E4;@P']` :,~]R,tJQ 1.5 取当前时
7wA.:$ int 时= DateTime.Now.Hour;
5;4bZ3e,0 84|oqwZO 1.6 取当前分
4],*y`& g int 分= DateTime.Now.Minute;
'U|Tye i? KhFw%Z0s< 1.7 取当前秒
BJ$\Mb##3@ int 秒= DateTime.Now.Second;
65g"$:0 =,HxtPJ 1.8 取当前毫秒
mDB?;a> int 毫秒= DateTime.Now.Millisecond;
:Y\!~J3W J =j6rD 28.自定义分页代码:
!$1'q~sO ?ZS/`P0}[ 先定义变量 :
$T-Pl57 public static int pageCount; //总页面数
hALg5.E{T public static int curPageIndex=1; //当前页面
UFOUkS
F #@^mA{Dt5 下一页:
'ai3f if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
wx]r{ {
[.[|rnil DataGrid1.CurrentPageIndex += 1;
-,Y[`(q curPageIndex+=1;
$bdtiD }
q wd7vYBc, }s>.Fh bind(); // DataGrid1数据绑定函数
Fr{}~fRW< 7{fOo%(7 上一页:
POl_chq if(DataGrid1.CurrentPageIndex >0)
UU;U,q {
ab/^z0GT DataGrid1.CurrentPageIndex += 1;
t_\;G~O9-M curPageIndex-=1;
R{3vPG }
6{8dv9tK %X^K5Io bind(); // DataGrid1数据绑定函数
TTQ(\l4 rV[/G#V>{ 直接页面跳转:
5+yT{,(5 int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
=|Vm69 .`;
bQh'! if(a<DataGrid1.PageCount)
F&[MyX U4 {
!L|PDGD this.DataGrid1.CurrentPageIndex=a;
7LZA!3 }
Hp}d m93T NBaXfWh bind();
7sglqf> Ao}J 29.DataGrid使用:
)/4xR] 8F(Vd99I 添加删除确认:
>M-ZjT> private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
8RE" xJMff {
Q(0eq_X|6 foreach(DataGridItem di in this.DataGrid1.Items)
G1z0q3< B {
Qi?xx') if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
%<?U`o@* {
.R! /?eN ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
W%,h{ }
FsTl@zN }
J~=tR1k }
XxeyGs^%9 Duh[(r_ 样式交替:
_ giZ'&l! ListItemType itemType = e.Item.ItemType;
WJJwhr L2P#5B!S if (itemType == ListItemType.Item )
*s[bq;$ {
3^x
C=++ e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
66jL2XU< e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
-NuRf# }
*<rBV`AP else if( itemType == ListItemType.AlternatingItem)
n `Ry! {
UX!)\5- e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
zmdu\:_X9 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
Hs>|-iDs( }
9%MHIY5 S#g=;hD 添加一个编号列:
g]a5%8*{ DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
iF!r}fUU6 DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
$1< ~J 8*\PWl for(int i=0;i<dt.Rows.Count;i++)
E6njmdu {
$Il:Yw_ dt.Rows["number"]=(i+1).ToString();
ek9Y9eJ" }
GL-r;
<
X&{6xu DataGrid1.DataSource=dt;
}
0^wJs DataGrid1.DataBind();
Z<M?_<3 lemE/(`a_ DataGrid1中添加一个CheckBox,页面中添加一个全选框
KBSO^<7 private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
9EI Oa/* {
|',$5!:0O foreach(DataGridItem thisitem in DataGrid1.Items)
H}}g\|r& {
%"{jNC? ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
[t.x cO }
?Gr2@,jlD }
6Q}WX[| tQ Dqh
rg; 将当前页面中DataGrid1显示的数据全部删除
6OLp x)fG foreach(DataGridItem thisitem in DataGrid1.Items)
x+B7r&#: {
)xPfz if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
"1X@t'H38 {
gI5" \"T{ string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
IP3%'2}- Del (strloginid); //删除函数
uFH ]w]X }
r)Dln5F }
ImZ!8# )e6)~3[^ 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
n$z+g>~N BL?Bl&p( 在Application_Start中添加以下代码:
s4uYp Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
>56I`[) AppSettings["ConnStr"].ToString();
}US^GEs( "PhP1;A9, 31. 变量.ToString()
0ghW};[6 $Lx2!Zy 字符型转换 转为字符串
Bk)*Z/1<x 12345.ToString("n"); //生成 12,345.00
[<H'JsJl 12345.ToString("C"); //生成 ¥12,345.00
PW)Gd +y 12345.ToString("e"); //生成 1.234500e+004
+`D,7"{Eu 12345.ToString("f4"); //生成 12345.0000
.
v
L4@_ 12345.ToString("x"); //生成 3039 (16进制)
G$T#ql 12345.ToString("p"); //生成 1,234,500.00%
/Q*o6Gys0 YKtF)N;m] 32、变量.Substring(参数1,参数2);
F-SD4a z&x3":@u< 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);
=FfxHo1k *W&}}iL 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)
t7].33%\ <SCRIPT language="javascript">
;5TQH_g <!--
m(6SiV=D9 function gook(pws)
?9I=XTR {
c"H59 jE frm.submit();
8a}et8df: }
)CAEqP
//-->
THcK,`lX@ |'?./ </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
F\lnG <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
Rx,Qw> # <tr>
<[W41{ <td>
-<MA\iSP <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
LLlt9(^d <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
}>T$2"pf <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
R_|Sg ~0 5p+F) <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
TcjTF|q> <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
piv/QP-X `$hna{e^n </td>
!Ic{lB %
bpVK~z </tr>
g.9:R=JPT vvvH5NRm </form>
~8#Ku,vEy _/(7: 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。
wEu"X ML9nfB^z! 下面是获取用户输入的登陆信息的代码:
8:QnxrODP string name;
m5w ZS>@ name=Request.QueryString["EmailName"];
EqB3f_ G{C27k>wa try
,k=1'7d {
hynX5,p;. int a=name.IndexOf("@",0,name.Length);
dd=';%? f_user.Value=name.Substring(0,a);
G,]%dZHe f_domain.Value=name.Substring(a+1,name.Length-(a+1));
WBIJ9e2~ f_pass.Value=Request.QueryString["Psw"];
OwJZ?j&) }
miCW(mbO8 wE*jN~ catch
;3 |Z}P {
"B9aJo Script.Alert("错误的邮箱!");
l{u2W$8 Server.Transfer("index.aspx");
1+0DTqWz }