1. 打开新的窗口并传送参数:
7S1!|*/
I RyhR# 传送参数:
IWWFl6$- response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
(mD]}{> E{6}'FG+A 接收参数:
41zeN++ string a = Request.QueryString("id");
('lnQD.Hd string b = Request.QueryString("id1");
P\AH9#XL AO]lXa 2.为按钮添加对话框
X3-1)|g !z Button1.Attributes.Add("onclick","return confirm(’确认?’)");
,9pi9\S button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
f2u2Ns0Ym MMAC,4 3.删除表格选定记录
/iN\)y#u1 int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
*nc4X9 string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
e)xWQ=,C RnrM
rOh 4.删除表格记录警告
G;m"ao"2 private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
V[mQ;:= {
#TWc` 8 switch(e.Item.ItemType)
nGbrWu]w {
sy?>e*-{ case ListItemType.Item :
!kcg#+s91 case ListItemType.AlternatingItem :
B1M/5cr. case ListItemType.EditItem:
FSmi.7 TableCell myTableCell;
@Y,F&8a$ myTableCell = e.Item.Cells[14];
Hj\~sR$L- LinkButton myDeleteButton ;
aOHCr>po, myDeleteButton = (LinkButton)myTableCell.Controls[0];
,$]q2aL myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
qLP+@wbJ break;
=c,gK8C default:
p~.@8r( break;
yq}{6IyZ^ }
DPwSg\*) #'8PFw\zw }
SIlg 7&3URglsL" 5.点击表格行链接另一页
nX~MoWH1 private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
-!0LIr:" {
W.|6$hRl) //点击表格打开
LasH[:QQQ if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
[86'/:L\2 e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
.vv*bx
}
v'!Ntk 3+-(;>>\ 双击表格连接到另一页
Q]wM/7 X*"Kg 在itemDataBind事件中
nIjQLx if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
RF J ;hh {
{K:Utdu($q string OrderItemID =e.item.cells[1].Text;
$dP)8_Z2 ...
z6lz*%Yi e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
gQuw|u }
VTWE-:r 4l''/$P 双击表格打开新一页
.=yus[,~ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
HD{`w1vcN {
xp&!Cl>C3\ string OrderItemID =e.item.cells[1].Text;
mx9/K+: ...
skz]@{38 e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
EaD@clJS }
.$0Ob<. !C#RW=h9 ★特别注意:【?id=】 处不能为 【?id =】
Qs9 U&*L 6.表格超连接列传递参数
t^,Qy.L0 <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
p'uz2/g <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
wzPw;xuG CFm1c1%Hg 7.表格点击改变颜色
Yp]G)}'R if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
Pp_3 nyQ {
nb_^3K]r e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
5j,qAay9 this.style.color=’buttontext’;this.style.cursor=’default’;");
CS\tCw\Y }
o0G`Xn Qc;[mxQe 写在DataGrid的_ItemDataBound里
`4H9f&8( if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
Z9 m;@<% {
51
0XDl~b e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
A{I
a21T7 this.style.color=’buttontext’;this.style.cursor=’default’;");
8 tygs e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
[
5W#1 & }
9r nk\`E P\4tK<P| +n[wkgFd 8.关于日期格式
q#*6 )B *+j{9LK 日期格式设定
2A}u qaF DataFormatString="{0:yyyy-MM-dd}"
=>0M3 Qh{ c^Jgr(Ow 我觉得应该在itembound事件中
0@K:Tq-mF e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
B21AcE RzRvu]]8 9.获取错误信息并到指定页面
PdH`_/6 (+LR u1z 不要使用Response.Redirect,而应该使用Server.Transfer
Z'NbHwW} As~p1%nok e.g
; eF4J // in global.asax
Ccr+SR2 protected void Application_Error(Object sender, EventArgs e) {
^i+z_%V if (Server.GetLastError() is HttpUnhandledException)
%?oU{KzQ@; Server.Transfer("MyErrorPage.aspx");
]KK ZbEO Gr"7w[|+ //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
aE\BAbD7 }
3y=<w|4F )fMX!#KP 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
r.wIk0 N9=r#![>, 10.清空Cookie
2v9s@k/k)6 Cookie.Expires=[DateTime];
K%c ATA3 Response.Cookies("UserName").Expires = 0
U=i8>6V R;E"Qdt 11.自定义异常处理
g<iwxF //自定义异常处理类
03QEXm~|Q using System;
#1't"R+3M using System.Diagnostics;
cCh5Jl@Z j t`p<gI namespace MyAppException
"26B4* {
'^ e/F)0 /// <summary>
@CaD8%j{ /// 从系统异常类ApplicationException继承的应用程序异常处理类。
B~ !G lT /// 自动将异常内容记录到Windows NT/2000的应用程序日志
]tQDk4&i /// </summary>
H@2v<e@ public class AppException:System.ApplicationException
V1`5D7Z {
#HM\a public AppException()
c_G-R+ {
Jh&~/ntmm_ if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
5{
4"JO3 }
~f=6?5.wa dx13vZ3[U public AppException(string message)
1>@]@ST[: {
QBfhyo_ LogEvent(message);
gl9pgY1ni }
[)H,zpl 4VmCW"b7h public AppException(string message,Exception innerException)
_
7BF+*T {
qXU:A-IdIl LogEvent(message);
W.J:.|kt if (innerException != null)
AY&9JSu6 {
Q+N7:o!;<b LogEvent(innerException.Message);
tIxhSI^ }
Th~3mf
# }
)'j_D< )l!J$X+R //日志记录类
h{W$ fZc< using System;
Y|m_qB^_ using System.Configuration;
(RDa,& using System.Diagnostics;
rysP)e using System.IO;
QDjW!BsX3 using System.Text;
FtFv<UV using System.Threading;
C`NBHRa> V4`:Vci Aw namespace MyEventLog
Ms:KM{T0 {
N?a1sdR /// <summary>
P&[F t)` /// 事件日志记录类,提供事件日志记录支持
NIGB[2V( /// <remarks>
mh
A~eJ /// 定义了4个日志记录方法 (error, warning, info, trace)
'ZGT`'ri /// </remarks>
hF{x')(#l /// </summary>
jU]]:S4xD/ public class ApplicationLog
`P ^u: {
&547`* /// <summary>
j}rgOz. /// 将错误信息记录到Win2000/NT事件日志中
|TB@@ 2Ky& /// <param name="message">需要记录的文本信息</param>
ch0oFc$ /// </summary>
$@[dm)M public static void WriteError(String message)
J ?ztn {
}t@f|TX WriteLog(TraceLevel.Error, message);
m4Phn~>Gg }
3}>: g[#k.CuP /// <summary>
'DCKD4@C/ /// 将警告信息记录到Win2000/NT事件日志中
}b_R5U$@@ /// <param name="message">需要记录的文本信息</param>
lfxuc7Rdla /// </summary>
Bmx(qE public static void WriteWarning(String message)
C<[d {
w8 ?Pb$Fe WriteLog(TraceLevel.Warning, message);
mP9cBLz }
D'7A2 f <X:Ud&\ /// <summary>
h^o+E2<] /// 将提示信息记录到Win2000/NT事件日志中
]regi- LGU /// <param name="message">需要记录的文本信息</param>
4*0:bhhhf_ /// </summary>
[NHg&R H public static void WriteInfo(String message)
]LEoOdDN"C {
5~@?>)TBv WriteLog(TraceLevel.Info, message);
;\<""Yj@l }
\p5|}<Sr) /// <summary>
zb"rMzCH /// 将跟踪信息记录到Win2000/NT事件日志中
SQh+5 /// <param name="message">需要记录的文本信息</param>
:d;[DYFLxb /// </summary>
69t7=r public static void WriteTrace(String message)
F;IP3tD {
mSU@UD|' WriteLog(TraceLevel.Verbose, message);
C-Nuy1o }
J?._/RL8- qq
OxTG] /// <summary>
fA"<MslKLK /// 格式化记录到事件日志的文本信息格式
-h>Z,-DE6 /// <param name="ex">需要格式化的异常对象</param>
r0)JUc}Fyq /// <param name="catchInfo">异常信息标题字符串.</param>
8 ne/=N|, /// <retvalue>
gO+\O /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
~c9>Nr9|` /// </retvalue>
j(0Ilx|7v /// </summary>
v2Dt3$@H6 public static String FormatException(Exception ex, String catchInfo)
)D:9R)m {
YSqv86 StringBuilder strBuilder = new StringBuilder();
*,"jF!C&[ if (catchInfo != String.Empty)
mfZ)^X {
K@q&HV"'. strBuilder.Append(catchInfo).Append("\r\n");
qOW#Q:T }
t:\l&R& strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
_~tm7o+js return strBuilder.ToString();
FXS^^p
P }
cb+l"FI7 ^:m^E0(H /// <summary>
lwVk(l
Z /// 实际事件日志写入方法
(jMtN?&0H- /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
`q%U{IR /// <param name="messageText">要记录的文本.</param>
Iha[Gu /// </summary>
3I|O^ private static void WriteLog(TraceLevel level, String messageText)
YnSbw3U.I {
'0]r<O try
5B1G?`]? {
N*Yy&[ EventLogEntryType LogEntryType;
0|ZVA+ switch (level)
d]8_l1O {
qB:AkMd& case TraceLevel.Error:
PkTfJQP8 LogEntryType = EventLogEntryType.Error;
a.?v*U@z@# break;
jO=*:{#x case TraceLevel.Warning:
=ai2z2z LogEntryType = EventLogEntryType.Warning;
R\*)@[y9l break;
fe|g3>/| case TraceLevel.Info:
@M=$qO_$9 LogEntryType = EventLogEntryType.Information;
EJ`Q8uz break;
BBxc*alG0 case TraceLevel.Verbose:
#:#Dz.$L LogEntryType = EventLogEntryType.SuccessAudit;
6a*83G,k break;
RwW$O@0 default:
J@QdieW6 LogEntryType = EventLogEntryType.SuccessAudit;
vs+QbI6>- break;
-j&Vtr }
bG(x:Py& X]!D;7^ EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
^2EhlK^) //写入事件日志
/YFa
;2 W eventLog.WriteEntry(messageText, LogEntryType);
+i. u< T /g@^H/DO }
L6+C]t}>6 catch {} //忽略任何异常
n?:2.S.8 }
)Q]w6he3 } //class ApplicationLog
m;o4Fu }
26.)U r<F q jz3<`7- 12.Panel 横向滚动,纵向自动扩展
q>-R3HB <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
rLzW` FaY_0G;y 13.回车转换成Tab
\0?$wIH? <script language="javascript" for="document" event="onkeydown">
3+>OGwfQ if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
I8u!\F event.keyCode=9;
WK==j1 </script>
_R^y\1Qu [jrqzB onkeydown="if(event.keyCode==13) event.keyCode=9"
T@P!L N*_"8LIfi_ 14.DataGrid超级连接列
>b48>@~bY DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
SE)nD@: 51 4Z<omrK 15.DataGrid行随鼠标变色
mb1Vu private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
%
5z
gd> {
DnFjEP^ if (e.Item.ItemType!=ListItemType.Header)
XA{F:% {
m5*[t7@% e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
:Fe_,[FR e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
=K(JqSw+M }
fx)KNm8Lx }
I\zemW! E^wyD-ii/ 16.模板列
3v1 7" <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
AnMV < <ITEMTEMPLATE>
dZ]Rqr
_! <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
g^l RG3a </ITEMTEMPLATE>
[T^?Q%h </ASP:TEMPLATECOLUMN>
bL`eiol6 SK
R1E];4 <ASP:TEMPLATECOLUMN headertext="选中">
^DB{qU <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
IQnIaZ <ITEMTEMPLATE>
E\M-k\cSj <ASP:CHECKBOX id="chkExport" runat="server" />
66\jV6eH7L </ITEMTEMPLATE>
?S tsH <EDITITEMTEMPLATE>
UyiJU~r1 <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
h@1!T </EDITITEMTEMPLATE>
q
\O
Ou </ASP:TEMPLATECOLUMN>
Ri)uq\E/# 6F|j(LB 后台代码
gzdG6" protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
<9eu1^g {
FTf<c0 //改变列的选定,实现全选或全不选。
Kat&U19YH CheckBox chkExport ;
BKIjNV3 if( CheckAll.Checked)
QDTNx!WL {
73F5d/n foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
f p[,C1U {
[L(hG a chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
Q(Gl{#b chkExport.Checked = true;
gfg n68k }
+TJEG?o }
f_=~H<j! else
P_Hv%g {
d~9!,6XM foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
RU#F8O {
ae+*=, chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
Jxl6a: chkExport.Checked = false;
R 94^4I }
]!
*[Q\ }
s:>\/[*>0c }
`[fxyg:u jZ*WN|FK? 17.数字格式化
q_[G1&MC \cJa;WM> 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
98XVa\|tl <%#Container.DataItem("price","{0:¥#,##0.00}")%>
!wz/cM; 3G}AH E4 int i=123456;
p{$p
$/A string s=i.ToString("###,###.00");
ca<" 4Y \wnwI 18.日期格式化
d^E [|w; /0MDISQy9 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
;q>9W,jy "tk-w{> 显示为: 2004-8-11 19:44:28
]; $] G- PJ4(}a 我只想要:2004-8-11 】
T1WWK' <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
b\7iY&.C| _i0kc,*C\ 应该如何改?
ZJW[?V\5= fh8j2S9J 【格式化日期】
w4,Ag{t> V N{NA+I 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
K$ }a8rH y]
oaO+ 【日期的验证表达式】
m7c*)"^ G"5D< ] A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
E>LkJSy= ^((\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})))?$
*A 'FC|\ zw<p74DH B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
`O?T.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]))$
PQmq5N6 ;h=*!7:
【大小写转换】
m0w;8uF2UV HttpUtility.HtmlEncode(string);
CbBSFKM HttpUtility.HtmlDecode(string)
q<W=#Sx .jw}JJ 19.如何设定全局变量
Xr63?N inb^$v Global.asax中
/'2O.d0}. LWoG4s?w Application_Start()事件中
u9woEe? P;[OWSR[d 添加Application[属性名] = xxx;
@:0ddb71 wFh8?Z3u_ 就是你的全局变量
cLa]D[H 5wao1sd# 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
N]EcEM # RgdysyB HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
8(g:HR*; 5<pftTcZ 【ASPNETMENU】点击菜单项弹出新窗口
zJDSbsc$% =o}"jVE 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
g[
0<m#" <?xml version="1.0" encoding="GB2312"?>
)0vU
k <MenuData ImagesBaseURL="images/">
Qp"y?S <MenuGroup>
ne61}F"E <MenuItem Label="内参信息" URL="Infomation.aspx" >
v8gdU7Ll, <MenuGroup ID="BBC">
4H5pr <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
(BxJryXm <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
:WI.LKlo~ ......
p(xC*KWB `~eX55W 最好将你的aspnetmenu升级到1.2版
\~d";~Y` C3hv* 21.读取DataGrid控件TextBox值
RCTQhTy= foreach(DataGrid dgi in yourDataGrid.Items)
jV#ahNq; {
^=n+T7"J TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
fP
tm0.r tb.Text....
Qu5UVjbE, }
L@75-T f)c~cJz<q 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?
+_v$!@L8 IM$2VlC 〖思归〗
svelYe#9z <asp:TemplateColumn HeaderText="数量">
GU't%[ <ItemTemplate>
RT93Mt%P <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
nJRS.xs onkeyup="javascript:DoCal()"
Uie?9&3 />
ZT02"3F O3N0YGhJ <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
+,o0-L1D </ItemTemplate>
N=:5eAza </asp:TemplateColumn>
`28};B> S[tE&[$(p <asp:TemplateColumn HeaderText="单价">
hS[yNwD <ItemTemplate>
d!KsNkk <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
2<&Bw2 onkeyup="javascript:DoCal()"
vA$o~?a]/ />
bifS 2>c ]M)O YY <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
1)}=bhT 2&+#Vsm`V </ItemTemplate>
Auy_K?he] </asp:TemplateColumn>
ZcuA6#3B \MxoZ <asp:TemplateColumn HeaderText="金额">
QKN<+,h!z> <ItemTemplate>
as=m`DqOh <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
?[*0+h`en </ItemTemplate>
9Rek4<5 </asp:TemplateColumn><script language="javascript">
:16P.z1L function DoCal()
T!wo2EzE {
Te2zK7:
var e = event.srcElement;
<
RCLI| var row = e.parentNode.parentNode;
"MIq.@8ra var txts = row.all.tags("INPUT");
^xf<nNF:p if (!txts.length || txts.length < 3)
axHK_1N{ return;
LlBN-9p liR? var q = txts[txts.length-3].value;
:K\mN/ x var p = txts[txts.length-2].value;
O62b+%~F pV6d
Id if (isNaN(q) || isNaN(p))
K1V#cB
WO return;
[2ax>Yk$ 7_2kDDW0 q = parseInt(q);
%>g W9}kB p = parseFloat(p);
SXao|{?O tpy>OT$ txts[txts.length-1].value = (q * p).toFixed(2);
lpH=2l$>? }
SI:U0gUc </script>
b3wM;jv nhG
J X(jVRr_m9 JbB}y'c4}= $A3<G-4O 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
C"lJl k9g^ page_load
n.hv!W0 page.smartNavigation=true
dD<fn9t
FgL,k 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
CF|]e: private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
y*{Zbz#{ {
%gnM(pxl for(int i=0;i<e.Item.Cells.Count-1;i++)
?PTk1sB if(e.Item.ItemType==ListItemType.EditType)
y2O4I'/5< {
Q-#$Aa e.Item.Cells.Attributes.Add("Width", "80px")
l{w#H|] }
smG>sEp2 }
_2b tfY1U 1b8p~-LsU 26.对话框
4@.|_zY private static string ScriptBegin = "<script language=\"JavaScript\">";
%3HVFhl private static string ScriptEnd = "</script>";
r%DFve:% 50dGBF public static void ConfirmMessageBox(string PageTarget,string Content)
P;PQeXKw {
iR$<$P5 string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
{_RWVVVe pj?XLiM54% ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
t6c<kIQ:-O [P|[vWO Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
1_$xSrwcF ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
nN$Y(2ZN //Response.Write(strScript);
?j^=u:< }
E1;@=#t2i #S%Q*k<hw 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
%AF5=
5-)#f? 1.1 取当前年月日时分秒
:a:[. currentTime=System.DateTime.Now;
1>Q{Gs^ nS()u}c;r 1.2 取当前年
Gamr6I"K int 年= DateTime.Now.Year;
)pw&c_x 61U<5:#l 1.3 取当前月
~}Z\:#U int 月= DateTime.Now.Month;
*M7E#bQ5B y {q*s8NY 1.4 取当前日
2tayP@$ int 日= DateTime.Now.Day;
SPj><5Ro hO{cvHy` 1.5 取当前时
~-a'v! int 时= DateTime.Now.Hour;
wPbkUVO {F&-7u0 1.6 取当前分
Qy#)Gxp int 分= DateTime.Now.Minute;
.@iFa3 \qi|Js*{ 1.7 取当前秒
]E3U
J!! int 秒= DateTime.Now.Second;
qDWsvx] m?s}QGSka 1.8 取当前毫秒
# N~,F@t int 毫秒= DateTime.Now.Millisecond;
w",?
Bef
-{h 28.自定义分页代码:
WS& kx~oQ TJ?g% 先定义变量 :
DaNW~rd{ public static int pageCount; //总页面数
^s\3/z>b4! public static int curPageIndex=1; //当前页面
/R
X1UQ.s DOm[*1@^ 下一页:
3+MB5T if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
ryO$6L {
S)He$B$pp DataGrid1.CurrentPageIndex += 1;
n$m"]inX curPageIndex+=1;
~Lfcg* }
!BU)K'mj Do?P<x o bind(); // DataGrid1数据绑定函数
nW\(IkX\ ;%J5=f%z) 上一页:
t?;T3k[RM if(DataGrid1.CurrentPageIndex >0)
b(GFMk {
fYebB7Pv DataGrid1.CurrentPageIndex += 1;
U7&x rif curPageIndex-=1;
L{g E'jCC }
lfk9+) JU0]Wq <^[ bind(); // DataGrid1数据绑定函数
%R_{1GrL'c m$>iS@R 直接页面跳转:
=fc:6JR int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
wh 0<Uv v4?iOD if(a<DataGrid1.PageCount)
^CzYDq {
0Flu\w/+P this.DataGrid1.CurrentPageIndex=a;
x)5V.q }
j{#Wn
!, xu%'GZ,o9 bind();
KB{RU'?f| vnX 29.DataGrid使用:
~4.r^)\ gLj?Ys 添加删除确认:
?4PQQd private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
@%tXFizh {
@b!"joEy foreach(DataGridItem di in this.DataGrid1.Items)
U`R;P- {
[2$4| ;7 if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
V7CoZnz {
#/J
'P[z ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
^.X [)U }
cErI%v}v0 }
q/@dR{- }
)&NAs s(@h 2:j 样式交替:
hsce:TB ListItemType itemType = e.Item.ItemType;
jy$@a%FD O@U?IF$ if (itemType == ListItemType.Item )
A-E+s~U8 {
tR`S#rk e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
8q_0,>w% e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
<Q`&o@I }
i3V/`)iz else if( itemType == ListItemType.AlternatingItem)
Hw_o
w? {
[$:,-Q @ e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
"h$R ]~eG e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
3_ 2hC!u!K }
)y50Mb0+ y]qsyR18i 添加一个编号列:
p,#6
@* DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
MZm'npRf DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
k0K A ~ 744=3v for(int i=0;i<dt.Rows.Count;i++)
=:$) Z {
z4Oo@3$\R dt.Rows["number"]=(i+1).ToString();
o\4t4}z~'f }
wz#[:2 @6.]!U4w DataGrid1.DataSource=dt;
eqzTQen8q DataGrid1.DataBind();
lJ/6-dP ~Yk"Hos DataGrid1中添加一个CheckBox,页面中添加一个全选框
+mWjBY private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
$+VgDe5{S {
tP'GNsq+m foreach(DataGridItem thisitem in DataGrid1.Items)
XI}I.M {
mY2:m(9"5 ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
b :\D\X }
Lo3-X }
qe?Ggz3p. mUwUs~PjA 将当前页面中DataGrid1显示的数据全部删除
yjZ2 if foreach(DataGridItem thisitem in DataGrid1.Items)
c>MY$-PD {
|^5 /(16 if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
az(5o {
i.@*tIK string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
o<\6Rm Del (strloginid); //删除函数
pcpxe&S }
b.Su@ay@(^ }
q6)N*? Ru7L>(Njs 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)
8&Wx@QI 02M7gBS 在Application_Start中添加以下代码:
q!*MH/R Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
4!'1/3cY AppSettings["ConnStr"].ToString();
Ec.)!Hu NKh,z&
_5- 31. 变量.ToString()
m+$/DD^-zl ;G Qm[W([ 字符型转换 转为字符串
5rF /323z 12345.ToString("n"); //生成 12,345.00
S~&\o\"5 12345.ToString("C"); //生成 ¥12,345.00
7-g^2sa'( 12345.ToString("e"); //生成 1.234500e+004
fv|%Ocm 12345.ToString("f4"); //生成 12345.0000
o[{&!t 12345.ToString("x"); //生成 3039 (16进制)
z|%Bh 12345.ToString("p"); //生成 1,234,500.00%
o}!&y?mp e[p^p!a 32、变量.Substring(参数1,参数2);
jaa/k@OG Zjt9vS) 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);
R`3x=q
vK'9{q|g 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)
;_bq9x <SCRIPT language="javascript">
uE"2kn <!--
]-rczl|o function gook(pws)
Sgx+V"bkT {
VVN#
$ frm.submit();
A?sNXhh }
g\j>qUjs%Q //-->
C&oxi$J:p+ V%o#AfMI_ </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
3Pa3f >}- <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
])68wqD <tr>
}{#7Z8 <td>
jqqaw <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
j Q^Yj"6 <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
:%>oe> _" <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
/ (.'*biQ $uTlbAuv <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
% IPyCEJD <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
M3PVixli3 B~BUWWMfp </td>
jiOf')d5 FcY$k%;'Q </tr>
&LwJ'h+nd P$F#,Cn </form>
xz="|HD); W|~q<},j 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
XZ;*>( JJ)y2 下面是获取用户输入的登陆信息的代码:
,%.:g65% string name;
|zg=+ name=Request.QueryString["EmailName"];
&~42T}GTWG /;[}=JL<Q try
fWqv3nY^ {
55(J&q int a=name.IndexOf("@",0,name.Length);
,q/tyGj f_user.Value=name.Substring(0,a);
;}n|,g> f_domain.Value=name.Substring(a+1,name.Length-(a+1));
vRq=m8 f_pass.Value=Request.QueryString["Psw"];
G!-7ic_4 }
Hs.6;|0% r=xTs,xx catch
ZKZl>dDuh {
Bi$
0{V Z8 Script.Alert("错误的邮箱!");
HIQ]"Hl Server.Transfer("index.aspx");
xNocGtS }