1. 打开新的窗口并传送参数:
yGG\[I;7 SF7b1jr 传送参数:
n_&)VF#n( response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
1@z@ ow$l!8 接收参数:
2Yd~v| string a = Request.QueryString("id");
O*/-I
pM string b = Request.QueryString("id1");
4NR5?s 5a|m}2IX 2.为按钮添加对话框
!=:MG#p Button1.Attributes.Add("onclick","return confirm(’确认?’)");
<H@!Xw; button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
E1ob+h:`d _N f[HP 3.删除表格选定记录
$#JVI: int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
gH//
TbS string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
_v=WjN |b~g^4 4.删除表格记录警告
}J'wz;t1 private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
y*Q-4_%, {
m1o65FsY08 switch(e.Item.ItemType)
?!j/wV_H {
rZQHB[^3 case ListItemType.Item :
`[:1!I.}- case ListItemType.AlternatingItem :
)bU")
case ListItemType.EditItem:
fvMhq:Bu TableCell myTableCell;
KP-z myTableCell = e.Item.Cells[14];
/D]r"- LinkButton myDeleteButton ;
:9q^ myDeleteButton = (LinkButton)myTableCell.Controls[0];
UMW^0>Z!v myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
35kbE' break;
OSi9J.]O default:
]%8;c break;
4m!3P"$ }
j?hyN@ns pz}hh^]t }
Pc4cSw#5 1gej$G@ 5.点击表格行链接另一页
Y '*h_K private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
(wF$"c3'{ {
#( J}xz; //点击表格打开
7{F9b0zwk if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
p)&\>
e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
l"y9XO| }
=d.W'q| `3P62M< 双击表格连接到另一页
K5rj!*x.o XXmu|h 在itemDataBind事件中
uN0fWj] if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
3^yWpSC {
Mf13@XEo string OrderItemID =e.item.cells[1].Text;
K2`WcEe ...
PH!B /D5G e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
G/44gKl }
rB|:r\Z(jG -+@~*$
d 双击表格打开新一页
,5uDEXpt{ if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
8vo7~6yy {
ibUPd."W string OrderItemID =e.item.cells[1].Text;
v$/i5kcWx ...
B_jI!i{N%o e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
2#}IGZ`Yp/ }
NfN6KDd]2L &YP>"< ★特别注意:【?id=】 处不能为 【?id =】
k\Tm?^L) 6.表格超连接列传递参数
[z@RgDXv <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
.h^Ld,Chj <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
I19F\
L`4 &?sjeC_ 7.表格点击改变颜色
usf(U> if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
Jn&>Z? @ {
J
uKaRR~ e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
D|3QLG this.style.color=’buttontext’;this.style.cursor=’default’;");
CGl+!t{ }
@soW f 3edK$B51; 写在DataGrid的_ItemDataBound里
t1s@Ub5);I if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
%t.IxMY {
8@
gD03 e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
*.Hnt\4| this.style.color=’buttontext’;this.style.cursor=’default’;");
~x|Sv4M e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
?|yJ#j1= }
I3b-uEHev g~u!,Zc *X5LyO3-gP 8.关于日期格式
|q)Q<%VS' iqP0=(^m 日期格式设定
xl=|]8w DataFormatString="{0:yyyy-MM-dd}"
)PNk
O3 <_uv!N 我觉得应该在itembound事件中
F$p,xFH# e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
vu >@_hv a
:AcCd) 9.获取错误信息并到指定页面
-ouL4 o%Q2. 不要使用Response.Redirect,而应该使用Server.Transfer
Ll48)P{+}V ~3]8f0^%m e.g
[T|1 Qq7 // in global.asax
)dDmq protected void Application_Error(Object sender, EventArgs e) {
Yr0i9Qow if (Server.GetLastError() is HttpUnhandledException)
I65GUX#DV Server.Transfer("MyErrorPage.aspx");
H8k| >4 .W:], 5e //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
<rxem(PPu }
1H@F>}DP oC>~r1.j Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
o:ob1G[p% ;%9ZL[- 10.清空Cookie
o62gLO]z@ Cookie.Expires=[DateTime];
wj~8KHan Response.Cookies("UserName").Expires = 0
f2f$aZ ^E*C~;^S 11.自定义异常处理
)A;<'{t #L //自定义异常处理类
f89<o#bm7h using System;
oD`BX using System.Diagnostics;
Yy 1Pipv `?m(Z6' namespace MyAppException
`XY[HK {
THZ3%o=X /// <summary>
Q&{5.}L /// 从系统异常类ApplicationException继承的应用程序异常处理类。
k Er7,c /// 自动将异常内容记录到Windows NT/2000的应用程序日志
H-lRgJdc /// </summary>
\/zS@fz public class AppException:System.ApplicationException
B)*%d7=x {
NYRNop( N# public AppException()
Os+=} {
1-<Xi-=^{t if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
qILr+zH }
#}?$mxME* F@3,>~[%I public AppException(string message)
oaE3Aa {
(avaTUMOqy LogEvent(message);
rR;Om1 -, }
FA,CBn5%
"WL public AppException(string message,Exception innerException)
),|bP`V {
IC~D?c0H: LogEvent(message);
${3OQG if (innerException != null)
L.[2l Q {
hw2Hn
LogEvent(innerException.Message);
r?*?iw2g }
-n-X/M }
E ..[F<5 g`8|jg0]`I //日志记录类
E"!*ASN using System;
$!lxVZ> using System.Configuration;
Atw^C+"vW& using System.Diagnostics;
"zc!QHpSd using System.IO;
Rwk|cqr using System.Text;
.=S{ using System.Threading;
)vzT\dQ| (re D namespace MyEventLog
u:|5jF {
z/=v@@tj /// <summary>
G#>X~qk() /// 事件日志记录类,提供事件日志记录支持
h Bw~l?G /// <remarks>
kPe9G /// 定义了4个日志记录方法 (error, warning, info, trace)
wAYc)u# /// </remarks>
hJ :+*46 /// </summary>
m? hX= public class ApplicationLog
!JA63 {
5+J/Qm8{bb /// <summary>
0fNBy^(K /// 将错误信息记录到Win2000/NT事件日志中
IA'AA|v /// <param name="message">需要记录的文本信息</param>
@VAhmYz /// </summary>
'M{_S public static void WriteError(String message)
wVTo7o%U {
7Ll(,i<,C WriteLog(TraceLevel.Error, message);
?a}~yz#B( }
B HYEd}M 2o;M:+KQ) /// <summary>
umeb&\:8S- /// 将警告信息记录到Win2000/NT事件日志中
Oh: -Y]m= /// <param name="message">需要记录的文本信息</param>
%;S5_K, /// </summary>
gg9W7%t/ public static void WriteWarning(String message)
}sZ]SE {
-XBNtM_" WriteLog(TraceLevel.Warning, message);
l=yO]a\QZ }
A(B2XBS!? as8<c4:v /// <summary>
2},}R'aR /// 将提示信息记录到Win2000/NT事件日志中
H#D=vx' /// <param name="message">需要记录的文本信息</param>
I{$|Ed1 /// </summary>
<LE>WfmC public static void WriteInfo(String message)
QX4I+x~oo\ {
f$L5=V WriteLog(TraceLevel.Info, message);
)mU)7@! }
-e ya$C /// <summary>
4^5s\f B /// 将跟踪信息记录到Win2000/NT事件日志中
UJI1n?~ /// <param name="message">需要记录的文本信息</param>
RK0IkRXQd /// </summary>
6lPGop]js] public static void WriteTrace(String message)
@`yfft {
C-7.Sa
WriteLog(TraceLevel.Verbose, message);
9}-,dgAB }
+qdK]RR} (|-/S0AV /// <summary>
q$K~BgFzpZ /// 格式化记录到事件日志的文本信息格式
xab[ /// <param name="ex">需要格式化的异常对象</param>
$f%_ 4 = /// <param name="catchInfo">异常信息标题字符串.</param>
03xQ%"TU< /// <retvalue>
x]:mc%4-Z /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
dNR4h /// </retvalue>
G2rvi=8= /// </summary>
<8Ad\MU public static String FormatException(Exception ex, String catchInfo)
k"6^gup(U {
R[z6 c) StringBuilder strBuilder = new StringBuilder();
LX8vVj8K if (catchInfo != String.Empty)
cX2b: {
g8C+j6uR0 strBuilder.Append(catchInfo).Append("\r\n");
& 3gni4@@ }
vgV0a{u" strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
XjC+kH return strBuilder.ToString();
$]9d((u4 }
_LK(j;6K} C5m*pGImG /// <summary>
G100L}d"N /// 实际事件日志写入方法
h*Ej}_
/// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
SWu=n1J.?H /// <param name="messageText">要记录的文本.</param>
@"6BvGU2s /// </summary>
z')'8155 private static void WriteLog(TraceLevel level, String messageText)
pq@ad\8 {
opBvx>S try
+VJl#sc/; {
qdOS=7]W EventLogEntryType LogEntryType;
-Fb/GZt| switch (level)
y ^YrGz. {
hZy"@y3Yq case TraceLevel.Error:
l4; LV7Ji LogEntryType = EventLogEntryType.Error;
%n(
s;/_ break;
cNHNh[ C case TraceLevel.Warning:
_L"rygit LogEntryType = EventLogEntryType.Warning;
vUW ! break;
{W-PYHZ; case TraceLevel.Info:
5<u+2x8| LogEntryType = EventLogEntryType.Information;
e}kG1C8 break;
p7z#4 GW case TraceLevel.Verbose:
),n?" LogEntryType = EventLogEntryType.SuccessAudit;
.w0? break;
QF>H>=Za= default:
P<bA~%<7"[ LogEntryType = EventLogEntryType.SuccessAudit;
P~~RK&+i break;
cu
Nwv(P }
"k+QDQ3= P)T:6K EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
5~qr+la //写入事件日志
`/"z. ~8 eventLog.WriteEntry(messageText, LogEntryType);
$T1c{T6n} #pf}q+A }
<#c2Hg%jh catch {} //忽略任何异常
0^;{b^!( }
S>6APQ- } //class ApplicationLog
ohwQ%NDl }
w ^r*qi" :`_wy-}V 12.Panel 横向滚动,纵向自动扩展
<)M?qkjb <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
'0[l'Dt' 7n#0eska, 13.回车转换成Tab
tJ 6:$dh <script language="javascript" for="document" event="onkeydown">
PoC24#vS if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
#0weN% event.keyCode=9;
IqmavnM# </script>
U\ 51j r!(~Y
A onkeydown="if(event.keyCode==13) event.keyCode=9"
?g9CeeH* [}FP_Su$6 14.DataGrid超级连接列
rt"\\sOlMB DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
,O2Uj3" K\ZKVn 15.DataGrid行随鼠标变色
'Y[\[]3[8 private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
-2f0CAh~ {
^E5Xpza if (e.Item.ItemType!=ListItemType.Header)
k%hif8y {
WC`<N4g| e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
;v.l<AOE e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
$?0<rvGJ }
1y
6H 2 }
?Hq`*I?b9 3B>!9:w~f 16.模板列
,5<-\"{] <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
[3j]r{0I <ITEMTEMPLATE>
iE$0-Qe[3 <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
~jJu*s$? </ITEMTEMPLATE>
gp;(M~we
</ASP:TEMPLATECOLUMN>
@T1-0!TM') )\t#e`3 <ASP:TEMPLATECOLUMN headertext="选中">
.Yo#vV <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
7n%QP <ITEMTEMPLATE>
W(EU*~<UC <ASP:CHECKBOX id="chkExport" runat="server" />
<>p\9rVp*^ </ITEMTEMPLATE>
$.v5G>-)3 <EDITITEMTEMPLATE>
YckexfL <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
d!,V"*S </EDITITEMTEMPLATE>
8^+Qn/b_% </ASP:TEMPLATECOLUMN>
t:W`=^ c D7q;|+ 后台代码
U%2 pbGU protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
^M8\ 3G {
>:8GU f* //改变列的选定,实现全选或全不选。
^8B#-9Ph b CheckBox chkExport ;
KWM.b"WnXr if( CheckAll.Checked)
7HFw*; {
oU67<jq foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
!G,Ru~j5: {
nAg|m,gA chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
ZcIwyh(` chkExport.Checked = true;
W)o-aX!P }
d[jxU/.p; }
5'.j+{" else
Ktg6 *L/ {
)J5(M` foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
J/=b1{d"n {
vcqL chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
Gh|q[s*k chkExport.Checked = false;
'Ko
T8g\b }
2#ypM 9 }
aZ- )w }
KK/~W _epi[zf@ 17.数字格式化
-SZ^;t q^k6.5*" 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
;
*r5 d+] <%#Container.DataItem("price","{0:¥#,##0.00}")%>
.z)E 'd'*4 )]k int i=123456;
q>f1V3 string s=i.ToString("###,###.00");
, En
D3
| C {gYrz) 18.日期格式化
Vtr0=-m& LBbk]I 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
x_AG=5OJX, {
+MqXeq 显示为: 2004-8-11 19:44:28
>4b-NS/}0 V(w2k^7)F 我只想要:2004-8-11 】
xLX:>64'o> <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
6E85mfFS dKi+~m'w 应该如何改?
HS>Z6|uLY 2wpLP^9Vr< 【格式化日期】
vaS/WEY J_<ENs- 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
e\tcP mi6<;N2w| 【日期的验证表达式】
z'XFwk t@.M;b8 A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
NDm3kMa ^((\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})))?$
j)]mN$Sa: r^q@rL> B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
]FL=E3U ^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$
3I@j=:(%Y {H=DeQ 【大小写转换】
l0l2fwz( HttpUtility.HtmlEncode(string);
X70G@-w HttpUtility.HtmlDecode(string)
rK9X68) 2y`rS
_2 19.如何设定全局变量
lt`#or"o BMgiXdv.B Global.asax中
~f;d3dJ]/ $x)C_WZj? Application_Start()事件中
v=RQ"iv8 ^ dM,K
p 添加Application[属性名] = xxx;
zkA"2dh E0o= 就是你的全局变量
z%<Z#5_N &J,MJ{w6" 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
2<y!3OeN ]KBzuz% HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
(ylpH`
R bM`"wrZ 【ASPNETMENU】点击菜单项弹出新窗口
vdyLwBz: dX^OV$ 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
CuR.a <?xml version="1.0" encoding="GB2312"?>
]hJ#%1 <MenuData ImagesBaseURL="images/">
-NGY+1 <MenuGroup>
i?.MD+f8 <MenuItem Label="内参信息" URL="Infomation.aspx" >
h%|Jkx!v-t <MenuGroup ID="BBC">
-U`]/ <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
>j%HVRW <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
2WE_NEpJI ......
KU|dw^Y k sL[&y'+ 最好将你的aspnetmenu升级到1.2版
1\X1G>60m *F42GiBZR 21.读取DataGrid控件TextBox值
URz$hcI8 foreach(DataGrid dgi in yourDataGrid.Items)
:7
Ro9z8 {
N<}{oIsZ+ TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
Y_ b;1RN tb.Text....
Bb_R~1
l }
!vH7vq [7]Kvb2t 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
@zSI@Oq_ iaPrkMhd 〖思归〗
wi-O}*O
<asp:TemplateColumn HeaderText="数量">
zUF%`CR <ItemTemplate>
?j6?KR@# <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
yj13>"n h onkeyup="javascript:DoCal()"
@*`9!K% />
=87.6Ai -rb]<FrL^ <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
BG\g`NK}Z </ItemTemplate>
xXp$Nm]: </asp:TemplateColumn>
ckY,6e"6 (qG |.a <asp:TemplateColumn HeaderText="单价">
PQ9.aJdw@- <ItemTemplate>
@F%H 1 <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
X458%)G!(K onkeyup="javascript:DoCal()"
cOkjeHs
5 />
%eW[`uyV 2Z!%Q}Do <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
,1J+3ugp& vN'Y);$ </ItemTemplate>
Z#0hh%E"|y </asp:TemplateColumn>
nG
hFY Ql !*JE%t <asp:TemplateColumn HeaderText="金额">
sq1Z;l31" <ItemTemplate>
a"ZBSg( <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
-L<''2t </ItemTemplate>
NZ`Mq </asp:TemplateColumn><script language="javascript">
XMzL\Edo function DoCal()
>T:
Yp< {
%P05k var e = event.srcElement;
6P@3UQ)}s var row = e.parentNode.parentNode;
8#b>4Dx var txts = row.all.tags("INPUT");
5:ca6H if (!txts.length || txts.length < 3)
tai return;
Hry*.s - j[2?}? var q = txts[txts.length-3].value;
EA_6L\+8& var p = txts[txts.length-2].value;
o0t/ ?ra6Lo if (isNaN(q) || isNaN(p))
YbjeM6#E return;
,QU2xw D[ S^ij % q = parseInt(q);
ZtG5vdf p = parseFloat(p);
94Wf ] fS2 ^$"B| txts[txts.length-1].value = (q * p).toFixed(2);
H%2Y8} }
CDOqdBQ </script>
G4DuqN~2m M8j%bmd(, $$QbcnOf$ 2\
3}y( (NPDgR/ 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。
Pt<lHfd page_load
5R6@A?vr page.smartNavigation=true
ETQ.A< v H3<
` 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 ?
an! ceB private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
;`ZGiax {
Id-?her>B for(int i=0;i<e.Item.Cells.Count-1;i++)
V0y Q if(e.Item.ItemType==ListItemType.EditType)
TXx%\V_6 {
B]jI^(P e.Item.Cells.Attributes.Add("Width", "80px")
>:7W.QLRU }
_h;#\ )%~ }
jn[%@zD } V$e\84< 26.对话框
:$eg{IXC" private static string ScriptBegin = "<script language=\"JavaScript\">";
haj\Dm private static string ScriptEnd = "</script>";
G+Vlaa/7 >(>Fx\z} public static void ConfirmMessageBox(string PageTarget,string Content)
1%W|>M` {
h!#!}|Q' string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
+Ja9p 38(Cj~u=3 ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
0>PO4WFVJ &Z
Ja}5k!r Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
5G-)> ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
F^Q[P4>m\ //Response.Write(strScript);
\VJ7ahg[\ }
w783e n- cEa/g 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
49Sq)jd< _ElA\L4g% 1.1 取当前年月日时分秒
mG;Gt=4 currentTime=System.DateTime.Now;
&j2fh!\4 ^ 'jJ~U 1.2 取当前年
b.Wf*I? int 年= DateTime.Now.Year;
SVvR]T&_ u[25U;xo 1.3 取当前月
{-X8MisI int 月= DateTime.Now.Month;
P=ARttT`( ^"Y5V5 1.4 取当前日
K&{*sa r int 日= DateTime.Now.Day;
3'(w6V q r12"H 1.5 取当前时
XsE] Z4 int 时= DateTime.Now.Hour;
h9Zf4@w []e*Io&[ 1.6 取当前分
\A-w,]9^V int 分= DateTime.Now.Minute;
DFvLCGkDk n[2[V*| mI 1.7 取当前秒
xHN"7 j}h int 秒= DateTime.Now.Second;
M[9]t(" O/;$0`~hY 1.8 取当前毫秒
!M]_CPh] int 毫秒= DateTime.Now.Millisecond;
+bnz%/v h#p1wK;N 28.自定义分页代码:
DkO>?n:-C <&&xt
?I. 先定义变量 :
nr/^HjMV public static int pageCount; //总页面数
\qPgQsy4 public static int curPageIndex=1; //当前页面
:hB
8hTw]p n
ETm" 下一页:
lqC
a%V if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
c"mRMDg% {
]stAC3 DataGrid1.CurrentPageIndex += 1;
]sz3:p=5 curPageIndex+=1;
Vab+58s5 }
<fY<.X ebF},Q(48 bind(); // DataGrid1数据绑定函数
k]*DuVCOX #]`ejr:2O 上一页:
.F=15A if(DataGrid1.CurrentPageIndex >0)
8'+XR`g:ax {
Y4PU~l DataGrid1.CurrentPageIndex += 1;
5S:&^ A< curPageIndex-=1;
.MO"8}]8Z }
|0Kj0u8T Q!DQ!;Br6 bind(); // DataGrid1数据绑定函数
m4:b?[ F8 4LMk?U 直接页面跳转:
:z=/z!5:j int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
h 9V9.' a.F6!? if(a<DataGrid1.PageCount)
/wIev1Z!Y {
1a{~B# this.DataGrid1.CurrentPageIndex=a;
C._I\:G^ }
3mWd?!+m= 64s9Dy@%F bind();
~g2ColFhu 7{oG4X! 29.DataGrid使用:
|L{<=NNs:D GXaCH))TO 添加删除确认:
B^(0>Da\ private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
LyA=(h6 {
l'N>9~f foreach(DataGridItem di in this.DataGrid1.Items)
UQz8":#V {
wL 5p0Xl if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
qIQvix$8 {
_\ n'uW$ ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
,cm;A'4] }
DBi3 j }
:xd&V%u` }
F]Zg9c{# h+$1+Es 样式交替:
DvnK_Q! ListItemType itemType = e.Item.ItemType;
kKVq,41' zqAK|jbL if (itemType == ListItemType.Item )
uC G^,BQ {
Xmy(pV!PF e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
]4@z.1Mr e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
Dbr(Wg }
st36xS else if( itemType == ListItemType.AlternatingItem)
/IVw}:G {
,)+O.Lf7&. e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
j#%*@]>Tg e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
NXDV3MH= }
%V;k/w~[ &..![,)w^! 添加一个编号列:
NWB/N* DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
hD58 s"L$ DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
;B`e;B?1Q Ks09F} for(int i=0;i<dt.Rows.Count;i++)
S5RS?ya {
D00rO4~6D% dt.Rows["number"]=(i+1).ToString();
e*vSGT$KgL }
V]}/e!XK\ dQA J`9B DataGrid1.DataSource=dt;
t]FFGnBZ DataGrid1.DataBind();
+u_mT$|T y)U8\ DataGrid1中添加一个CheckBox,页面中添加一个全选框
O3*Vilx private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
-tx)7KV- {
qd3B>f foreach(DataGridItem thisitem in DataGrid1.Items)
2!dIW5I {
UR-e'Z&] ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
{NE;z<,*: }
/eR @&!D ' }
LnZz= ~;m~)D 将当前页面中DataGrid1显示的数据全部删除
W5:S+ foreach(DataGridItem thisitem in DataGrid1.Items)
_?Jm.nT {
!0`ZK-nA6 if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
NLb/Bja {
D'O[0?N"g string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
)2F:l0g Del (strloginid); //删除函数
k`
(_~/# }
L0|Vc9 }
%8
cFzyE* F>A-+]X3o 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)
~2A<fL,- }SpMHR` 在Application_Start中添加以下代码:
?Pmj }f Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
iCk34C7 AppSettings["ConnStr"].ToString();
biGaP#"0 GLc+`,. 31. 变量.ToString()
L6$,<}l 1Sz5&jz 字符型转换 转为字符串
>!? f6
{\| 12345.ToString("n"); //生成 12,345.00
P9`i6H'~ 12345.ToString("C"); //生成 ¥12,345.00
~`tc|Zu 12345.ToString("e"); //生成 1.234500e+004
@b!fs 12345.ToString("f4"); //生成 12345.0000
WF-imI:EK 12345.ToString("x"); //生成 3039 (16进制)
RWTv,pLK 12345.ToString("p"); //生成 1,234,500.00%
oF
V9t{~j [W{`L_" 32、变量.Substring(参数1,参数2);
x+yt|
&B Q'~;RE%T 截取字串的一部分,参数1为左起始位数,参数2为截取几位。 如:string s1 = str.Substring(0,2);
:g<dwuVO :Np&G4IM> 33.在自己的网站上登陆其他网站:(如果你的页面是通过嵌套方式的话,因为一个页面只能有一个FORM,这时可以导向另外一个页面再提交登陆信息)
Ev0V\tl>0 <SCRIPT language="javascript">
=NJb9S&8A <!--
3CQpe function gook(pws)
['-ln)96. {
`34[w=Zm frm.submit();
W,Dr2$V }
i8HSYA //-->
z=)5M*h "P<~bw5 </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
&B3\;|\ <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
[+GQ3Z\ <tr>
T_AZCl4d <td>
k~=-o>}C <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
|BYD] vK <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
E?Q=#+}U <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
X[;4.imE b@,=;Y)O <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
,b{G(sF <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
-]'Sy$,A Mm.!$uR </td>
zi*D8!_C e4CG=K3s </tr>
L4kYF~G:4 r="X\ [on </form>
5+3Z?|b 9@D,ZSi 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。
RFA5vCG k_}ICKzw1 下面是获取用户输入的登陆信息的代码:
zO)9(%LS string name;
#On1Q:d name=Request.QueryString["EmailName"];
L**!$k"{5 I[t)V*L9 try
6dq U4 {
)sNtwSl^ int a=name.IndexOf("@",0,name.Length);
3wR5:O$H f_user.Value=name.Substring(0,a);
>Ckb9A f_domain.Value=name.Substring(a+1,name.Length-(a+1));
$ HUCp9 f_pass.Value=Request.QueryString["Psw"];
3v0)oK }
Nt/*VYUn HM[BFF[;/ catch
OgfQGGc {
E) z g,7Y Script.Alert("错误的邮箱!");
RNvtgZ}k{X Server.Transfer("index.aspx");
de ](l687I }