1. 打开新的窗口并传送参数:
bkm:#K D+h`Z]"| 传送参数:
PpSQf14, response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
R#ya9GN{ LRdV_O1e6M 接收参数:
xj5MKX{CJT string a = Request.QueryString("id");
DtZ7UX\P string b = Request.QueryString("id1");
m$g{& n0uL^{B 2.为按钮添加对话框
VT;cz6"6b4 Button1.Attributes.Add("onclick","return confirm(’确认?’)");
_z#S8Y button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
"msPH<D w-Q=oEt 3.删除表格选定记录
R78P](1\> int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
!OOOc string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
~`0=-Qkd ("=B,%F_ 4.删除表格记录警告
uK[gI6M private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
JaN53,&< {
7+$P6[* switch(e.Item.ItemType)
r90R~'5x9 {
+1eb@bX case ListItemType.Item :
wFJ*2W: case ListItemType.AlternatingItem :
xoQqku"vn case ListItemType.EditItem:
iH-(_$f; TableCell myTableCell;
BbgKaC q myTableCell = e.Item.Cells[14];
OjK+`D_C LinkButton myDeleteButton ;
Tq%## myDeleteButton = (LinkButton)myTableCell.Controls[0];
~-A"M_n ? myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
vtq47i break;
QQ99sy default:
vs*@)'n0 } break;
j$k/oQ }
%'9&JsO Ft @ZK!'@ }
yq` ,) wy""02j 5.点击表格行链接另一页
O5JG!bGE_F private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
q=k[]vD {
v5L#H=P //点击表格打开
TezwcFqH if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
y*lAmO e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
9hhYyqGsO }
)+a]M1j }5u; '>$ 双击表格连接到另一页
<7j"CcJzZ GJBMaT 在itemDataBind事件中
@nM+*0
$d if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
>NA{* *$0 {
bhCAx W string OrderItemID =e.item.cells[1].Text;
ahw0}S ...
N&W7g#F e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
'uLYah }
oN(F$Nvk / KKA/ 双击表格打开新一页
f'u[G?C if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
^>h2.AJ {
p49T3V string OrderItemID =e.item.cells[1].Text;
;{"uG>#R ...
U5j0i] e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
N0(($8G }
q/3co86c ?WrL<?r)}U ★特别注意:【?id=】 处不能为 【?id =】
inyS 4tb 6.表格超连接列传递参数
?MJ5GVeH <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
^NO;A=9b[ <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
1<wolTf L$; gf_L 7.表格点击改变颜色
liTAV9< if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
R)9FXz$). {
>V@,K z1 e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
w%kaM= this.style.color=’buttontext’;this.style.cursor=’default’;");
~tqNxlA }
dkOERVRe w6'8L s 写在DataGrid的_ItemDataBound里
o6S`7uwJ*/ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
@Hst-H.l<l {
+/Vzw e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
BWsD~Ft this.style.color=’buttontext’;this.style.cursor=’default’;");
2spK#0n.HV e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
=L}$#Y8? }
bt?)ryu ~;nW+S$o
[,mcvO; 8.关于日期格式
Ht%O9v \MtdT[* 日期格式设定
]w9syz8X DataFormatString="{0:yyyy-MM-dd}"
s_`y"'^ KnYHjJa 我觉得应该在itembound事件中
z';h5GNd>z e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
$dHD w7_2JS 9.获取错误信息并到指定页面
)"y]_} A;Uw
b 不要使用Response.Redirect,而应该使用Server.Transfer
Py#iC#g~ IV$2`)[A&X e.g
axd9b, // in global.asax
CV6W)B%Se protected void Application_Error(Object sender, EventArgs e) {
>Y&o2zJy if (Server.GetLastError() is HttpUnhandledException)
Re'Ek Server.Transfer("MyErrorPage.aspx");
'>|5 c# WIB 4 //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
)hK1W\5 }
s B!2't `jCq`-. Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
SlUt&+) s&qr2'F+z 10.清空Cookie
&bS!>_9 Cookie.Expires=[DateTime];
TWTRMc;z+ Response.Cookies("UserName").Expires = 0
R$VeD1n@ }F
(lffb 11.自定义异常处理
+PkN~m` //自定义异常处理类
\(xQ'AQ- using System;
7)au#K6 using System.Diagnostics;
Cl3hpqv1I c)=UX_S! namespace MyAppException
[KwwhI@3 {
QjwCY=PK! /// <summary>
lpeo^Y}N /// 从系统异常类ApplicationException继承的应用程序异常处理类。
&SK=ZOKg^ /// 自动将异常内容记录到Windows NT/2000的应用程序日志
CI,xp
/// </summary>
Q*AgFF%wn public class AppException:System.ApplicationException
T 9?!.o {
VEg/x z4c public AppException()
@5(HRd {
`pd1'5Hm if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
;V3d"@R, }
`o!a
RX ;:pd/\< public AppException(string message)
;= {Z Bx {
WWYG>C[ LogEvent(message);
9<I;9.1S?^ }
y2Z1B2E%f 5Ai$1'*p public AppException(string message,Exception innerException)
J'y*>dW {
@;@Wt`(2a LogEvent(message);
N\dr_ if (innerException != null)
SvGs?nUU {
s
*1%I$=@ LogEvent(innerException.Message);
E|Z7art }
._z[T@!9 }
pvJPMx S~DY1e54GF //日志记录类
4i o02qd
4 using System;
3$ 1 z using System.Configuration;
'$n#~/#} using System.Diagnostics;
>jDx-H.N using System.IO;
S=~8nr/V using System.Text;
[M6/?4\ using System.Threading;
xF3H\`{4x /q8?xP. namespace MyEventLog
>qI|g={M {
I3V>VLv /// <summary>
%S<( z5 /// 事件日志记录类,提供事件日志记录支持
gJ>HFid_C /// <remarks>
Af"vSL /// 定义了4个日志记录方法 (error, warning, info, trace)
cZ~\jpK /// </remarks>
>ak53Ij$ /// </summary>
u +OfUBrf public class ApplicationLog
v{2Vg {
^~dvA)bH /// <summary>
+(<}`!9M* /// 将错误信息记录到Win2000/NT事件日志中
~X
-.@k' /// <param name="message">需要记录的文本信息</param>
v+Q#O[ /// </summary>
(_lc< Bj public static void WriteError(String message)
'u2Qq"d+ {
Sm%MoFf WriteLog(TraceLevel.Error, message);
2tqO%8`_ }
QYL
'; BO p&s>hI /// <summary>
LvNk:99:< /// 将警告信息记录到Win2000/NT事件日志中
VgNt /// <param name="message">需要记录的文本信息</param>
o^!
Zt 9 /// </summary>
O({-lI public static void WriteWarning(String message)
:Y [r^=> {
Yg#)@L WriteLog(TraceLevel.Warning, message);
s"?&`S }
qEpP%p IczEddt@' /// <summary>
rLcQG /// 将提示信息记录到Win2000/NT事件日志中
^ffh /// <param name="message">需要记录的文本信息</param>
y|X\f! /// </summary>
9D_4]'KG public static void WriteInfo(String message)
#+eV5%Si {
wWflZ"% WriteLog(TraceLevel.Info, message);
O"mU#3? }
ASLRP /// <summary>
O!uB|* /// 将跟踪信息记录到Win2000/NT事件日志中
f:TC;K /// <param name="message">需要记录的文本信息</param>
3;`93TO{ /// </summary>
2'J.$ h3 public static void WriteTrace(String message)
-K/' }I {
6P;1I+5m{q WriteLog(TraceLevel.Verbose, message);
D] 2+<;>`> }
!+H=e>Y6 P"u* bqk /// <summary>
I=^%l7 /// 格式化记录到事件日志的文本信息格式
xZmKKKd0* /// <param name="ex">需要格式化的异常对象</param>
/BVNJNhz /// <param name="catchInfo">异常信息标题字符串.</param>
[:!#F7O- /// <retvalue>
,9"</\]` /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
zq]V6.]J /// </retvalue>
b\?#O} /// </summary>
3<msiCP public static String FormatException(Exception ex, String catchInfo)
{R,rc!yF {
%2oLND}?z StringBuilder strBuilder = new StringBuilder();
h{ce+~X if (catchInfo != String.Empty)
vVLR9"rHM {
mI in'M strBuilder.Append(catchInfo).Append("\r\n");
s$:]$&5 }
4aB`wA^x strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
Y@u{73H return strBuilder.ToString();
!HDk] }
mXF
pGo5 s bTHa;* ` /// <summary>
Ze Shn /// 实际事件日志写入方法
EGGy0 ly /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
i`8!Vm /// <param name="messageText">要记录的文本.</param>
?-\K Vha /// </summary>
ZLKS4 private static void WriteLog(TraceLevel level, String messageText)
L +. K}w {
D?5W1m]E,s try
3[aJ=5 {
uNhAfZ EventLogEntryType LogEntryType;
o<l4}~a switch (level)
OR"n i {
>cMU<'& case TraceLevel.Error:
V|? LogEntryType = EventLogEntryType.Error;
>Q5E0 !] break;
Z*]n]eS case TraceLevel.Warning:
s[s 6E`Q LogEntryType = EventLogEntryType.Warning;
{Y'_QW1:2 break;
1<59)RiO> case TraceLevel.Info:
A7b7IM [ LogEntryType = EventLogEntryType.Information;
_9
Gy` break;
l]v
*h0! case TraceLevel.Verbose:
;- ]f4O8 LogEntryType = EventLogEntryType.SuccessAudit;
`(o1& break;
dnIBAe default:
g\*gHHa LogEntryType = EventLogEntryType.SuccessAudit;
P<4jY?. break;
R?&S]?H }
6/#= dv [Q 2t,tQx EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
Vj?.' ( //写入事件日志
Qn*c<: eventLog.WriteEntry(messageText, LogEntryType);
T.`%1S U5H o? `< }
!^"hYp` catch {} //忽略任何异常
Ugdm" }
~C!vfPC } //class ApplicationLog
B|GJboQ }
Fsq S) IG9Q~7@ 12.Panel 横向滚动,纵向自动扩展
[?IERE!xQ <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
dNJK[1e6 <&L;9fr 13.回车转换成Tab
=v;-{oN! <script language="javascript" for="document" event="onkeydown">
ZA9']u%EJ if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
W>DpDrO4ml event.keyCode=9;
+j@|D@z </script>
M2zfN ru dU&.gFw1 onkeydown="if(event.keyCode==13) event.keyCode=9"
>$Fc=~;Ba mML^kgy\N 14.DataGrid超级连接列
U<6k!Y9ny DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
l
E&hw s*8hN*A/, 15.DataGrid行随鼠标变色
RD_;us@&&* private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
-dvDAs{X {
`jZX(H if (e.Item.ItemType!=ListItemType.Header)
MZd\.]G@ {
*UyV@ e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
TM^1{0;r5 e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
=AKW(v }
^g[])2", }
,^<+5TYM7 f$Ap\(. 16.模板列
mJsYY,b8 <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
Iiy:<c <ITEMTEMPLATE>
ynDx'Q* N' <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
,F-tvSc\Q </ITEMTEMPLATE>
?xf;#J+{8 </ASP:TEMPLATECOLUMN>
wl{p,[] eh`V#%S= <ASP:TEMPLATECOLUMN headertext="选中">
zPw
R1>gL <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
"pWdz}! <ITEMTEMPLATE>
5AjK7[<L <ASP:CHECKBOX id="chkExport" runat="server" />
no/]Me!j= </ITEMTEMPLATE>
./fEx
'E <EDITITEMTEMPLATE>
~F(+uJbO <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
T*{zL </EDITITEMTEMPLATE>
R/Y/#X^b </ASP:TEMPLATECOLUMN>
Cir =( Ov<3?)ok 后台代码
xLD6A5n,[ protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
|v1 K@ {
-DuiK:mp //改变列的选定,实现全选或全不选。
*g,?13Q_ CheckBox chkExport ;
ZK
?x_`w if( CheckAll.Checked)
R_N<j {
?}]kIK}MC foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
7O9s5 {
f C^l9CRY chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
pS<b|wu?f chkExport.Checked = true;
sTA/2d }
=3zn
Ta } }
@NHRuk+ else
&=?`;K {
m+m6"yE#_ foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
\Zh)oUHd {
tZ@+18 chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
z1FbW&V chkExport.Checked = false;
Qr<%rU^{. }
I|j tpv} }
R^2Uh$kk{A }
$HXB !$d 0%qUTGj 17.数字格式化
(En\odbvt (k5DbP[ 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
wr$}AX <%#Container.DataItem("price","{0:¥#,##0.00}")%>
g_>ZE -oZac int i=123456;
wqwJpWIe string s=i.ToString("###,###.00");
f~q&.,I( KJ)nGoP> 18.日期格式化
_ <;Q=?'* {.lF~cOu 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
E&>,B81 ommKf[h%i 显示为: 2004-8-11 19:44:28
*QG3 Jz YMi(Cyja& 我只想要:2004-8-11 】
}]~}DHYr <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
HEuM"2{DMM *3/7wSV: 应该如何改?
Hr+-ndH!Pq VBX#
!K1Q 【格式化日期】
r$#G%FMv 46zaxcY<! 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
da2[
ILi5WuOYX 【日期的验证表达式】
0 `!Q-G7 baNfS A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
E~>6*_? ^((\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})))?$
Ft7a\vn*B N-rmk B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
)RYnRC#O ^\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]))$
H{f_:z{{ 7idi&h" 【大小写转换】
[)3 U])w/ HttpUtility.HtmlEncode(string);
B
(1,Rq[ HttpUtility.HtmlDecode(string)
=GQ^uVf1 y^AA#kk 19.如何设定全局变量
'!-? fl"y@;;#h Global.asax中
9 <KtI7 O$Vm#|$sq Application_Start()事件中
Idlu1g |sFe:TX 添加Application[属性名] = xxx;
Is@a,k %]ayW$4 就是你的全局变量
,z1!~gIal ,w%oSlOu 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
z9ShP&^4[ V./w06;0 HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
{F:v$ K iw
fp' 【ASPNETMENU】点击菜单项弹出新窗口
YC]YX H ~9?U_ahfVt 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
gOyY#]g <?xml version="1.0" encoding="GB2312"?>
x~;EH6$5'/ <MenuData ImagesBaseURL="images/">
tHtV[We.: <MenuGroup>
@E}X-r.^f <MenuItem Label="内参信息" URL="Infomation.aspx" >
+^kxFQ(: <MenuGroup ID="BBC">
,%h!% nz! <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
R9l7CJM@ <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
+ |qfgi ......
EyPJvs Zva 最好将你的aspnetmenu升级到1.2版
&^IcL!t[ EB>B,# 21.读取DataGrid控件TextBox值
]zyX@=mM foreach(DataGrid dgi in yourDataGrid.Items)
L)lQ&z? {
}[z<iij4 TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
}E5#X R tb.Text....
ay(!H~q_U }
)E:,V~< 8 Iz)hz9k 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
P/pjy y5/6nvH_6 〖思归〗
qijcS2E6S <asp:TemplateColumn HeaderText="数量">
bW9"0=j[{ <ItemTemplate>
d>, V <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
lmQ 6X onkeyup="javascript:DoCal()"
#jZ@l3 />
{KDgK 9U)t@b <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
GzFE%< 9F </ItemTemplate>
um jhG6 </asp:TemplateColumn>
y|.fR>5 rAx"~l.= <asp:TemplateColumn HeaderText="单价">
Wu!t C <ItemTemplate>
s^>lOQ= <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
b(RBG onkeyup="javascript:DoCal()"
i~)NQmH< />
Px?Ao0)Z, 'qV3O+@MF <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
HmExfW
A/"}Y1#qX\ </ItemTemplate>
-~][0PVL9 </asp:TemplateColumn>
\V^*44+
<! jJVT_8J <asp:TemplateColumn HeaderText="金额">
&$c5~9p\B <ItemTemplate>
7':f_] <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
h}|6VJ@. </ItemTemplate>
1s`)yu^`v </asp:TemplateColumn><script language="javascript">
U,<]J*b(@4 function DoCal()
C]'g:93L {
"#pzZ)Zh var e = event.srcElement;
>+
]R4 var row = e.parentNode.parentNode;
f]8!DXEA var txts = row.all.tags("INPUT");
mF'-Is if (!txts.length || txts.length < 3)
=3|pHc hJ4 return;
&Vt2be* &xiOTkqB var q = txts[txts.length-3].value;
;cI#S%uvpn var p = txts[txts.length-2].value;
i-,D_ d=XpO*v,[ if (isNaN(q) || isNaN(p))
dC`tN5 return;
_1sMY hI rLJ[FqS q = parseInt(q);
&$qF4B* p = parseFloat(p);
\Mb(6~nC hCM8/Vvx6 txts[txts.length-1].value = (q * p).toFixed(2);
CE#\Roi x) }
cJ(BiL-uF </script>
M
XZq _BV`,`8} QqtC`H\ ,?g=U8y| e&QS#k 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
/vjGjb=3U page_load
s=d+GMa page.smartNavigation=true
yGiP[d|tRc W]]q=c%2 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
g5#CN:%f private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
Gg%tVQu {
fcRj for(int i=0;i<e.Item.Cells.Count-1;i++)
)O3jQ_q= if(e.Item.ItemType==ListItemType.EditType)
QjA&IZEC
{
-Z%F mv8 e.Item.Cells.Attributes.Add("Width", "80px")
u7;`4P:o@ }
4'SaEsA~ }
{-@~Q.&}v NZLXN 26.对话框
Ly9Q}dL private static string ScriptBegin = "<script language=\"JavaScript\">";
jfUJ37zNZr private static string ScriptEnd = "</script>";
b5j*xZv
s^w\zz Yb public static void ConfirmMessageBox(string PageTarget,string Content)
_(C^[ :s {
QDS0ejhp string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
g nt45]@{ L[9OVD ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
iTh
xVD pOm@b`S% Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
2;G98H ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
P,i"&9 8 //Response.Write(strScript);
G0}Dq MTi }
eC ~jgB U98_M)-%& 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
->\N_|_ Ap%O~wA' 1.1 取当前年月日时分秒
!!FR[NK currentTime=System.DateTime.Now;
9\v.qo. ~m=$VDWm 1.2 取当前年
Z>8eD|m%2 int 年= DateTime.Now.Year;
"B#Y- A 4j<\xL 1.3 取当前月
nbGoJC:U int 月= DateTime.Now.Month;
6xHi\L :zlpfm2 1.4 取当前日
Ah-8"`E int 日= DateTime.Now.Day;
xf/m!b"p mDfwn7f 1.5 取当前时
#vQ? int 时= DateTime.Now.Hour;
P@gtdi(Q ivfXat- 1.6 取当前分
#{x5L^v>] int 分= DateTime.Now.Minute;
@l~7x "tL2F*F"6X 1.7 取当前秒
7 _g+^e-" int 秒= DateTime.Now.Second;
x;j{}
% ==N` !+ 1.8 取当前毫秒
D`Gt int 毫秒= DateTime.Now.Millisecond;
UfR~%p>K %[`a 28.自定义分页代码:
3_W{T@T s~J=<)T*6 先定义变量 :
-es"0wS<u public static int pageCount; //总页面数
WfG(JJ public static int curPageIndex=1; //当前页面
'wZ_4XjD mc
ZGg;3 下一页:
D{p5/#|r if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
dQ9
ah {
KCUU#t|8V\ DataGrid1.CurrentPageIndex += 1;
Vl<9=f7[ curPageIndex+=1;
ne4c%?>t }
CWi8Fv 0(gq;H5x' bind(); // DataGrid1数据绑定函数
QU/fT_ORw \D?:J3H*] 上一页:
~*}$>@f{[X if(DataGrid1.CurrentPageIndex >0)
WPo:^BD {
=&7@<vBpy DataGrid1.CurrentPageIndex += 1;
=i>\2J%'R curPageIndex-=1;
_s+c+]bO }
;cKH1 ;W{b $k@g bind(); // DataGrid1数据绑定函数
MzzKJ;wbC6 ^e%}[q[>| 直接页面跳转:
A
WHU' int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
]JjK#eh :l,OalO if(a<DataGrid1.PageCount)
h^oH^moq< {
#.ct5 this.DataGrid1.CurrentPageIndex=a;
} ptMjT{9 }
.9h)bf+ /0lC KU!= bind();
S~)w\(r x<ax9{ 29.DataGrid使用:
M2@;RZ(| ?n]FNjd 添加删除确认:
|~K(F<;j private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
+Ok%e.\ZM {
6|!NLwa foreach(DataGridItem di in this.DataGrid1.Items)
{38\vX,I(w {
Z\? E3j if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
*1^$.Q& {
-M4p\6)Ge ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
#@qN8J}R }
OeElMRU" }
!aNh! }
ONX8}Ob~ +e P.s_t 样式交替:
por/^=e{Y ListItemType itemType = e.Item.ItemType;
qX#MV>1 9(, @aZ if (itemType == ListItemType.Item )
\+nGOvM {
3`F) AWzdr e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
=Z,5$6%) e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
gfy19c 9 }
g"hJ{{< else if( itemType == ListItemType.AlternatingItem)
vl:J40Kfn {
s8<gK.atl e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
,^$|R32 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
,gx)w^WTm }
3[IJhR[ #0"~G][# 添加一个编号列:
+(?>-3_z DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
U \oy8FZ DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
kV&9`c+ K84^Oq for(int i=0;i<dt.Rows.Count;i++)
^G|98yc!' {
xT*d/Oa w dt.Rows["number"]=(i+1).ToString();
jz'< }
TgfrI
sZhMa> DataGrid1.DataSource=dt;
^3]UZ@ DataGrid1.DataBind();
@;Opx." ?jO 5 9n DataGrid1中添加一个CheckBox,页面中添加一个全选框
<l,o&p,>|c private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
y\c"b-lQX {
,Zf
9RM foreach(DataGridItem thisitem in DataGrid1.Items)
o[\HOe~; {
p9qKLJ*.C ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
1(#;&:$`i }
d8o53a] }
-db75= \3XqHf3|o 将当前页面中DataGrid1显示的数据全部删除
>mq,}!n foreach(DataGridItem thisitem in DataGrid1.Items)
mD58T2Z {
jd-glE,Y/ if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
K^[#]+nQ {
{+.r5py string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
|L6&Gf]#5 Del (strloginid); //删除函数
S :bC[} }
aelO3'UN }
_5Bcwa/ &^".2)zU 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
O;9?(:_ )_7>nuQ6 在Application_Start中添加以下代码:
u1^wDc*xg Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
{QAv~S>4 AppSettings["ConnStr"].ToString();
2 QTZwx wBSQ:f]g 31. 变量.ToString()
3gZ8.8q3 3_$w|ET 字符型转换 转为字符串
jXg 12345.ToString("n"); //生成 12,345.00
BJ}D%nm} 12345.ToString("C"); //生成 ¥12,345.00
P9Q~r<7n 12345.ToString("e"); //生成 1.234500e+004
!CTxVLl"F 12345.ToString("f4"); //生成 12345.0000
XMIbUbUk- 12345.ToString("x"); //生成 3039 (16进制)
~B i_7 Q 12345.ToString("p"); //生成 1,234,500.00%
XGrue6ya 23\RJpKb 32、变量.Substring(参数1,参数2);
0&+k.Vg 9xI GV! 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);
zYER hqvE!Of 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)
_fk#< <SCRIPT language="javascript">
&53]sFZ
<!--
3VO2,PCZ function gook(pws)
G6 0S|d {
YwEpy(}hJm frm.submit();
fxcc<h4 }
4,Ic}CvM //-->
\nNXxTxX! dihjpI_ </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
}yn0IWVa <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
kRJ4-n^@>< <tr>
'9p@vi{\ <td>
eV^d6T$ <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
"r4AY <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
N2r/ho}8 <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
uN*KHE+h op2Of<{h <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
F9"w6;hh <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
Ex amD">T Uu
s. </td>
;*TIM%6# {$D,?V@%_ </tr>
=ac_,]z z4%uN|V </form>
t_z>Cl^u IY'=DePd 文本框的名称必须是你要登陆的网页上的名称,如果源码不行可以用vsniffer 看看。
<*ZJaBwWU~ z;f2*F 下面是获取用户输入的登陆信息的代码:
:$;Fhf<5 string name;
1@48BN8cm' name=Request.QueryString["EmailName"];
p@!nYPr. {Bs~lC$ try
tsOrt3 {
jdZ~z#`(!: int a=name.IndexOf("@",0,name.Length);
w27KI]%( f_user.Value=name.Substring(0,a);
~)LH='|h\} f_domain.Value=name.Substring(a+1,name.Length-(a+1));
}0#U;_;D f_pass.Value=Request.QueryString["Psw"];
>zsid: }
>2$5eI H`bSYjgM! catch
EC2+`HJ" {
xJ^>pg8 Script.Alert("错误的邮箱!");
ZX!r1*c
6 Server.Transfer("index.aspx");
iX u]e;6 }