1. 打开新的窗口并传送参数:
O'98OH+u K!\v?WbF 传送参数:
L~/,;PHN response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
&=)O:Jfa k F^4kCJ@ 接收参数:
`Ns@W? string a = Request.QueryString("id");
(8m_ GfT string b = Request.QueryString("id1");
py\:u5QS AJB
NM 2.为按钮添加对话框
mhrF9&s Button1.Attributes.Add("onclick","return confirm(’确认?’)");
f@YdL6&d- button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
P`@Rt o#6QwbU25 3.删除表格选定记录
tgG
8pL int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
,u>LAo0 string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
9soEHG=P BAXu\a-C_ 4.删除表格记录警告
"9'3mmZm=? private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
_D}3`` {
<o|fH~?X switch(e.Item.ItemType)
?xv."I% {
c=+%][21 case ListItemType.Item :
kCD]& case ListItemType.AlternatingItem :
eb`3'&zV&) case ListItemType.EditItem:
vC>2%Zgf- TableCell myTableCell;
?&9=f\/P myTableCell = e.Item.Cells[14];
$\*Z LinkButton myDeleteButton ;
(${:5W myDeleteButton = (LinkButton)myTableCell.Controls[0];
^G`6Zg;
myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
D"aK;_W@h break;
'8zd]U default:
er24}G8 break;
6bUP]^d }
_+9i D~ 3@v+d }
3.#L *w0|`[P+h 5.点击表格行链接另一页
b-8@_@f|g private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
mZB:j]T {
Q e+;BE-H //点击表格打开
jj2=|)w$3 if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
+o4o!;E) e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
I2HV{1(i }
:Ef!gpS}?R ;6R9k]5P% 双击表格连接到另一页
>
"rM\ Q Bj4c_YBte 在itemDataBind事件中
~l:Cj*6x8 if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
\y?*} L {
|DW^bv string OrderItemID =e.item.cells[1].Text;
+|bmUm<2 ...
]\K?%z e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
&TRKd)w d }
Trh
t2Iv l-W)?d 双击表格打开新一页
gYN;Fu-9Z if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
zUJXA:L9 {
KO8vUR*2R string OrderItemID =e.item.cells[1].Text;
gQik>gFr ...
!QAndg{;D e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
U%r{{Q1 }
"JmbYb#Z gNxv.6Pp= ★特别注意:【?id=】 处不能为 【?id =】
\mu';[gLd 6.表格超连接列传递参数
s[{8:Px <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
}Y.@:v
j <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
=.S2gO > b/\O;o}] 7.表格点击改变颜色
,B;mG]_ if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
mQ}\ptdfV {
Z\C"/j<y e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
_Q^jk0K8ga this.style.color=’buttontext’;this.style.cursor=’default’;");
NM9ViYm>P }
yD3vq}U! YdvXp/P:| 写在DataGrid的_ItemDataBound里
anz7ae&P'K if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
J%ws-A?6rN {
R-n%3oh e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
~7}no}7 this.style.color=’buttontext’;this.style.cursor=’default’;");
*tZ3?X[b e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
+>ituJ }
{DvWa| /Tl ybSC1 "o;%em*Bc 8.关于日期格式
gHUW1E oKSW:A 日期格式设定
ArX*3 DataFormatString="{0:yyyy-MM-dd}"
A+Je?3/. Vx0Hq`_14 我觉得应该在itembound事件中
.O~rAu*K e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
T2W^4) _mdJIa0D6k 9.获取错误信息并到指定页面
mNe908Yw ZQz;EV! 不要使用Response.Redirect,而应该使用Server.Transfer
.*EP$pc N]c:8dOj e.g
]6=opvm // in global.asax
c:z}$DK&' protected void Application_Error(Object sender, EventArgs e) {
k3OnvnJb if (Server.GetLastError() is HttpUnhandledException)
/KvpJ4 Server.Transfer("MyErrorPage.aspx");
Z-U3TrSI
@J@bD+Q+0 //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
I GcR5/3 }
^kB9
I8u 0Z%<H\Z Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理
S!}pL8OE T?__ 10.清空Cookie
~;I{d7z,; Cookie.Expires=[DateTime];
mOjl0n[To] Response.Cookies("UserName").Expires = 0
i3Nt?FSN +xmZK<{< 11.自定义异常处理
Git2Cet //自定义异常处理类
SR)@'-Wd using System;
r:^`005 using System.Diagnostics;
lgAE`Os W\DJXM]b namespace MyAppException
&zP\K~Nt {
m}
=<@b:l /// <summary>
+fIyeX /// 从系统异常类ApplicationException继承的应用程序异常处理类。
JR_c]AQYu /// 自动将异常内容记录到Windows NT/2000的应用程序日志
L?y,xA_ /// </summary>
[7)#3 public class AppException:System.ApplicationException
zgpPu4t {
VKrKA71Z~ public AppException()
Z3T26Uk {
7xT<|3 I if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
p@znmn- }
D3 E!jQ1 2gjA>ET`N public AppException(string message)
483vFLnF {
QaEXk5>e LogEvent(message);
KQqQ@D&n }
tX}Fb0y `+@%l*TQ public AppException(string message,Exception innerException)
[c6_6q As {
Fn%:0j LogEvent(message);
F{<rIR if (innerException != null)
}@A~a`9g {
.~8IW,[ LogEvent(innerException.Message);
&9g#Vq% }
*KV]MdS }
qdu:kA:] d{GXFT;0 //日志记录类
WI'csM;M# using System;
ma*9O |v^ using System.Configuration;
4'; [' using System.Diagnostics;
X}bgRzj using System.IO;
<~8W>Y\m using System.Text;
tv|=`~Y using System.Threading;
)Zm E" +V\NMW4d namespace MyEventLog
)'<zC {
bm7$D Kp# /// <summary>
&q` =xF /// 事件日志记录类,提供事件日志记录支持
QnOa?0HL/ /// <remarks>
p|bpE F=U /// 定义了4个日志记录方法 (error, warning, info, trace)
~E`A, /// </remarks>
AAl`bhx'n /// </summary>
"ChBcxvxb: public class ApplicationLog
z?YGE iR/} {
eZJOI1wNp /// <summary>
i|d41u;@ /// 将错误信息记录到Win2000/NT事件日志中
y.eBFf /// <param name="message">需要记录的文本信息</param>
;NPb /// </summary>
{5z?5i ?D public static void WriteError(String message)
V[#lFl). {
ZyWC_r! WriteLog(TraceLevel.Error, message);
$1@{Zz!S }
ZmHl~MR@ {S&&X&A`v /// <summary>
*AN#D?X_ /// 将警告信息记录到Win2000/NT事件日志中
|m EJJg`"7 /// <param name="message">需要记录的文本信息</param>
%yrP: fg/ /// </summary>
O@Kr}8^, public static void WriteWarning(String message)
Ua3ERBX{ {
BR%: `uiQ< WriteLog(TraceLevel.Warning, message);
(c_hX( }
^
pR& a:]yFi:Su /// <summary>
1-[{4{R /// 将提示信息记录到Win2000/NT事件日志中
( jyJ-qe /// <param name="message">需要记录的文本信息</param>
MR6vr.~ /// </summary>
JuI,wA public static void WriteInfo(String message)
?8nG F%p {
Zj^H3h WriteLog(TraceLevel.Info, message);
Ek.j@79 }
RGKJO_*J2 /// <summary>
5LK>n- /// 将跟踪信息记录到Win2000/NT事件日志中
]-`{kX /// <param name="message">需要记录的文本信息</param>
=f p(hX" /// </summary>
tw')2UGg public static void WriteTrace(String message)
MdfkC6P {
6a!X`%N= WriteLog(TraceLevel.Verbose, message);
VEZ/-s/ }
0\o'd\ *Ee# x!O /// <summary>
%qv7;E2C /// 格式化记录到事件日志的文本信息格式
87/{\h /// <param name="ex">需要格式化的异常对象</param>
ZqGq%8\.s /// <param name="catchInfo">异常信息标题字符串.</param>
S9BJjo /// <retvalue>
n(+:l'#HJ /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
pVY.&XBZ$ /// </retvalue>
0&-sz=L /// </summary>
#,;k>2j0 public static String FormatException(Exception ex, String catchInfo)
ouI0"R&@ {
M;bQid@BG StringBuilder strBuilder = new StringBuilder();
S {H8}m|MW if (catchInfo != String.Empty)
w{qYP {
Vqr&)i"b$ strBuilder.Append(catchInfo).Append("\r\n");
eyWwE% }
DQ}]'*@? strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
iB`m!g6$ return strBuilder.ToString();
oAx0$]+%V) }
YD%Kd&es +Lr0i_al /// <summary>
N!3f1d7RQ /// 实际事件日志写入方法
\3/9lE|gh /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
Pg36'aTe%j /// <param name="messageText">要记录的文本.</param>
lo#,zd~ /// </summary>
IR&u55#I6 private static void WriteLog(TraceLevel level, String messageText)
PTh
Ya {
s5dh]vNN try
Lsz`nD5 {
WveFB%@`; EventLogEntryType LogEntryType;
1,J. switch (level)
x@ O: {
$b$D[4 case TraceLevel.Error:
}R x%&29& LogEntryType = EventLogEntryType.Error;
{%Y7]*D break;
;sf/tX case TraceLevel.Warning:
}ie]7N6; LogEntryType = EventLogEntryType.Warning;
9.B7Owgr89 break;
HKwGaCj` case TraceLevel.Info:
|"<
I\Vs: LogEntryType = EventLogEntryType.Information;
!|/fVWH break;
N@$%0! case TraceLevel.Verbose:
qG qu/$bh LogEntryType = EventLogEntryType.SuccessAudit;
'9gI=/29D break;
9lxT5Wg default:
.%A2 LogEntryType = EventLogEntryType.SuccessAudit;
#rwR)9iC0 break;
SJ-Sac58r }
]lY9[~
v loJ0PY'}= EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
wGH@I_cy> //写入事件日志
`vSsgG eventLog.WriteEntry(messageText, LogEntryType);
v(O.GhJ@ K36B9<F }
g]#Wve catch {} //忽略任何异常
_;{-w%Vf }
qg/5m;U } //class ApplicationLog
gib]#n1!p }
Q/9b'^UJ a5M>1&j/eC 12.Panel 横向滚动,纵向自动扩展
<GN?J.B <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
De_</1Au!2 as4NvZ@+r 13.回车转换成Tab
%-Z~f~<? <script language="javascript" for="document" event="onkeydown">
w$4Lu"N: if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
O|~'-^ event.keyCode=9;
xJhbGK </script>
`,Gk1~Wv [
UJj*n onkeydown="if(event.keyCode==13) event.keyCode=9"
8.':pY'8" C.-a:oQ[ 14.DataGrid超级连接列
o{p_s0IX;S DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
3XtGi<u @UJmbD{ 15.DataGrid行随鼠标变色
z
sPuLn9G private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
)|x5#b-lz {
lijy?:__ if (e.Item.ItemType!=ListItemType.Header)
cG:`Zj~4 {
d
]
;pG( e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
)[*O^bPowI e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
\irjIXtV }
|5Pbc&mH8A }
kVv
<tw xF;v 6d 16.模板列
1\0@?6`^ <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
!%r`'|9y <ITEMTEMPLATE>
3~ZVAg[c <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
lv*uXg.k^ </ITEMTEMPLATE>
H)Ge#=;ckQ </ASP:TEMPLATECOLUMN>
P;&p[[7 N~jQ!y <ASP:TEMPLATECOLUMN headertext="选中">
5nAF =Bj <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
[)~@NN <ITEMTEMPLATE>
)g_zPt <ASP:CHECKBOX id="chkExport" runat="server" />
^E17_9? </ITEMTEMPLATE>
a7G2C oM8 <EDITITEMTEMPLATE>
di2=P)3 <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
/g''-yT7# </EDITITEMTEMPLATE>
ASw|sw </ASP:TEMPLATECOLUMN>
':]a.yA\1 N-E`go 后台代码
RfG$Px ' protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
+hgCk87%# {
<v k$eB8EC //改变列的选定,实现全选或全不选。
Ai18]QD- CheckBox chkExport ;
u$8MVP if( CheckAll.Checked)
Cl!jK^AbG {
{1|7N
GQ foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
ZF(=^.gc {
{C6;$#7P chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
UE w3AO chkExport.Checked = true;
T9-a
uK0d }
yW?%c#9D }
bU`yymf{L else
{+9\o ~ {
n9!3h ?,g foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
[)>8z8'f {
mp3_n:R? chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
x)ZH;) chkExport.Checked = false;
RLNuH2y; }
.6o y>4 }
hP8&n9o }
$4JX#lkt }tO<_f)) 17.数字格式化
Lu.tRZ`$38 '<S:|$$ 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
>[4|6k|\x <%#Container.DataItem("price","{0:¥#,##0.00}")%>
.WyX/E$I^! =[os<+ int i=123456;
h\\2r> string s=i.ToString("###,###.00");
Q$/F gS
"0zXpQi,B 18.日期格式化
6D"`FPC w]o5L 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
_6zP]|VBr y7EX& 显示为: 2004-8-11 19:44:28
1e&b;l'*= ![ID0}MjJ 我只想要:2004-8-11 】
-Bv1}xf=6 <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
dt&Lwf/ l(\8c><m 应该如何改?
]f-'A>MC 00a<(sS; 【格式化日期】
#'J7Wy SliQwm5 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
)Q/`o,Vm iiB )/~!O 【日期的验证表达式】
^i)Q
CDU7 L00;rTs> A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
b(-t)5^} ^((\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})))?$
)60f aDvO(C B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
yi-"hT` ^\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]))$
A<X :K
nl j{Jc6U 【大小写转换】
ZfCr"aL HttpUtility.HtmlEncode(string);
gdFoTcHgO| HttpUtility.HtmlDecode(string)
NG!cEo:2aa "|r^l 19.如何设定全局变量
s1 ^mk] ! vVjZ Global.asax中
p2DNbY\] as|c`4r\O Application_Start()事件中
;6
6_G Sjz }rA+W-7 添加Application[属性名] = xxx;
mYOdBd )LrCoI =| 就是你的全局变量
( WtE`f;Q _6S
b.9m 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
>c\v&k>6. )F#<)Evw HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
:Z]hI+7 ~7 L)n 【ASPNETMENU】点击菜单项弹出新窗口
UEQ'D9 r]O@HVbt$ 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
{e[pSD6 <?xml version="1.0" encoding="GB2312"?>
AH87UkNL <MenuData ImagesBaseURL="images/">
= *;Xc-_ <MenuGroup>
w$[Ds <MenuItem Label="内参信息" URL="Infomation.aspx" >
|U$de2LF <MenuGroup ID="BBC">
ecqz@*d& <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
HZ<f( <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
~muIi#4 ......
&c?hJ8" Ed0>R<jR9 最好将你的aspnetmenu升级到1.2版
q|$>H6H4b W*rU,F|9 21.读取DataGrid控件TextBox值
,{ L;B foreach(DataGrid dgi in yourDataGrid.Items)
f'`nx;@X {
Re,$<9V TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
s!;VUr\ tb.Text....
pg}+lYGP }
.UhBvHH ZDkD%SCy 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?
rE{Xo:Cf IL[|CB1v 〖思归〗
E%\7Uo- <asp:TemplateColumn HeaderText="数量">
PVS<QN% <ItemTemplate>
)4L%zl7 <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
V3A>Ag+^~ onkeyup="javascript:DoCal()"
/$Tl# />
Sd<@X@iU8D Fx[A8G <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
h6T/0YhWLP </ItemTemplate>
['OCw {< </asp:TemplateColumn>
1S[5#ewB;j ^'u;e(AaE
<asp:TemplateColumn HeaderText="单价">
t3#H@0< <ItemTemplate>
F2PLy
q <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
tC@zM.v% onkeyup="javascript:DoCal()"
mQ^@ \s />
Ad`[Rt']kI B`?N0t%X <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
rv%ye
H
x#j\"$dla </ItemTemplate>
Msa6yD# </asp:TemplateColumn>
4j/ iG\ !G"9xrr1 <asp:TemplateColumn HeaderText="金额">
s{z~Axup- <ItemTemplate>
oLqbR? <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
2htA7V*dD </ItemTemplate>
!,6v=n[Nz </asp:TemplateColumn><script language="javascript">
_D2bGZN function DoCal()
A M1C
$ {
4I#eC#" var e = event.srcElement;
mj(&`HRs4 var row = e.parentNode.parentNode;
Mi/ &$"= var txts = row.all.tags("INPUT");
]Ic?:lKN if (!txts.length || txts.length < 3)
V^`?8P8d return;
(+gL#/u |:(23O var q = txts[txts.length-3].value;
:B*vkwT var p = txts[txts.length-2].value;
^QXw[th!d
zOiY0`= if (isNaN(q) || isNaN(p))
/\-2l+y>J return;
=, C9O 3u?`q%Y-e q = parseInt(q);
y3KcM#[ p = parseFloat(p);
/J[H5uA &weY8\HD txts[txts.length-1].value = (q * p).toFixed(2);
L*UV }
_Vo)<--+I </script>
R*Xu(89 2GiUPtO&Gj Tbi]oB# CCW%G,$U9 62MRI 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?[a3rNH( page_load
0~Iu7mPY page.smartNavigation=true
%K%^ ]{ zmB31' _ 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 ?
wUK7um private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
m1hW< {
@q> ktE_ for(int i=0;i<e.Item.Cells.Count-1;i++)
(Pk"NEP if(e.Item.ItemType==ListItemType.EditType)
Q5p+ W {
}xkLD! e.Item.Cells.Attributes.Add("Width", "80px")
mFqSD }
wovmy{K }
6WE&((r^ \);.0 26.对话框
.1.J5>/n private static string ScriptBegin = "<script language=\"JavaScript\">";
i\=z' private static string ScriptEnd = "</script>";
~|CJsD/
JJ/1daj public static void ConfirmMessageBox(string PageTarget,string Content)
HY jMNj0 {
}O,U2=Hw`] string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
2E`~ qn <i_>
y~v` ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
XJx,9trH .e`,{G(5q7 Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
M11"<3]D ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
7$!`p,@we/ //Response.Write(strScript);
le7
`uz!% }
,c4c@|Bh? $uEJn&n7} 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
(;;J,*NP 8{R_6BS 1.1 取当前年月日时分秒
c%|vUAq* currentTime=System.DateTime.Now;
T)WZ_bR 5cD
XWF 1.2 取当前年
#*!+b int 年= DateTime.Now.Year;
#/OUGeJ )46
0Ed 1.3 取当前月
cCM
j\H@ int 月= DateTime.Now.Month;
Dn~Z SrJ # v.L$7O 1.4 取当前日
2HcsQ*H]G int 日= DateTime.Now.Day;
+$>N]1 ]e^R@w 1.5 取当前时
wA?@v|,dZ int 时= DateTime.Now.Hour;
o_iEkn C&=x3Cz 1.6 取当前分
n
vm^k int 分= DateTime.Now.Minute;
B;VH `*+X as>:\hjP## 1.7 取当前秒
./$
<J6-J int 秒= DateTime.Now.Second;
@u,+F0Yd wD`[5~C{ 1.8 取当前毫秒
Yt -W1vl int 毫秒= DateTime.Now.Millisecond;
nz^nptw /:U1!9.y 28.自定义分页代码:
5N\+@grp :]'q#$! 先定义变量 :
zVdKYs i^ public static int pageCount; //总页面数
yL.^ = public static int curPageIndex=1; //当前页面
.N5'.3 bZiyapM 下一页:
hHpx?9O+! if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
^%;" [r {
XJUEwX DataGrid1.CurrentPageIndex += 1;
D -6 curPageIndex+=1;
ei@3,{~5 }
z
OtkC3hY 5:c;RRn bind(); // DataGrid1数据绑定函数
6#E7!-u(- P@C
c]Z 上一页:
Jz0K}^Dj[ if(DataGrid1.CurrentPageIndex >0)
wS V@=)H\: {
%VWp&a8 DataGrid1.CurrentPageIndex += 1;
GA\2i0ow curPageIndex-=1;
%l,4=TQ[m }
#pX8{Tf[ V{0%xz # bind(); // DataGrid1数据绑定函数
AuAT]` Je^Y&a~ 直接页面跳转:
(k8Z=/N~ int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
Ah (iE _%%yV if(a<DataGrid1.PageCount)
MI\]IQU {
};rm3;~ eg this.DataGrid1.CurrentPageIndex=a;
"qS!B.rt: }
AFGwT%ZD G,]z(% bind();
RyuEHpN} .a:Z!KF 29.DataGrid使用:
F$h'p4$T =U NT.] 添加删除确认:
B7!;]'&d private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
<GaT|Hhc= {
,Aj }]h\L foreach(DataGridItem di in this.DataGrid1.Items)
9 ZGV%Tw {
Q 2"WV if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
333u] {
oIb)
Rq!m ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
-2 xE#r }
vU}: U)S }
j&CZ=?K^c }
VhvTBo<cw >jMH#TZaX 样式交替:
.!yq@Q|=u ListItemType itemType = e.Item.ItemType;
skR,-:"8 PBrnzkoY if (itemType == ListItemType.Item )
TV=c,*TV {
E0YU[([G e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
[D[D`gpjA e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
A$@o'Q;he }
\XS]N_}8> else if( itemType == ListItemType.AlternatingItem)
K_#UZA< Y {
qlUzr.^- e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
dE [Ol e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
&XQZs`41+ }
3ji:O T ~<,Sh~Ana. 添加一个编号列:
KjOi(YUnq7 DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
J`<f DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
Pm^lr! 3p XWtiwf'K for(int i=0;i<dt.Rows.Count;i++)
TwFb%YM {
v=p0 +J> dt.Rows["number"]=(i+1).ToString();
3dG4pl~ }
j Nc<~{/ s;1e0n DataGrid1.DataSource=dt;
J3B.-XJ+n DataGrid1.DataBind();
Uh}X<d/V eYEc^nC,c) DataGrid1中添加一个CheckBox,页面中添加一个全选框
? )_7U private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
`6F+Rrn {
Tpzw=bC^ foreach(DataGridItem thisitem in DataGrid1.Items)
Q2c*.Y {
/U*yw5 ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
WZ?!!
}
9":2"<'+ }
^i`*Wm@! ]XUSqai 将当前页面中DataGrid1显示的数据全部删除
Mr*|9h foreach(DataGridItem thisitem in DataGrid1.Items)
V@Wcb$mgk {
\hbiU] if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
@~o`#$*| {
~NNv>5t5 string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
maDz W_3 Del (strloginid); //删除函数
doD>m?rig3 }
$Ha%Gr }
&Rp"rMeW
)N7n,_#T> 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.^y1mH' Y=Hz;Ni 在Application_Start中添加以下代码:
J#7y<
s Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
z+3 9ee AppSettings["ConnStr"].ToString();
G9RP^ a+?~;.i~ 31. 变量.ToString()
Ro r2qDF sX:lE^)-z 字符型转换 转为字符串
%;O}FyP 12345.ToString("n"); //生成 12,345.00
A1A3~9HuK 12345.ToString("C"); //生成 ¥12,345.00
cOku1g8 12345.ToString("e"); //生成 1.234500e+004
iP "EA8 12345.ToString("f4"); //生成 12345.0000
Q)^g3J 12345.ToString("x"); //生成 3039 (16进制)
FFe)e>bH 12345.ToString("p"); //生成 1,234,500.00%
Uix{" Q6^x8 32、变量.Substring(参数1,参数2);
0YS?=oi J_ J+cRwq 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);
1r571B*O @J vZ[T/ 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)
DU{bonR` <SCRIPT language="javascript">
d
4O <!--
Vz w PBQ - function gook(pws)
k'+}92
o {
!k<:k
"7 frm.submit();
8(xw?|D7 }
+R[4\ hC0Y //-->
}*kJ-q&0 z[&s5" </SCRIPT> <body leftMargin="0" topMargin="0" onload="javascript:gook()" marginwidth="0" marginheight="0">
vWY(% Q, <form name="frm" action="
http://220.194.55.68:6080/login.php?retid=7259 " method="post">
X\sm[_I <tr>
'IQsve7cI <td>
$']VQ4tZ <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
=B(mIx;m <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
Oif,|: <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
JJf<*j^G K.DXJ UR <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
/f3m)pT <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
a8s4T$ P5URvEnz: </td>
T1NH eH> QN
G& </tr>
xP@/9SM FH\CK </form>
. U/k<v<)6 *Bw #c
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。
(9GbG" W_<4WG 下面是获取用户输入的登陆信息的代码:
lbkLyp2 string name;
^ d\SPZ name=Request.QueryString["EmailName"];
?q Xs- PqEAqP try
-p8e {
=`p&h}h-L int a=name.IndexOf("@",0,name.Length);
gq 4 . d f_user.Value=name.Substring(0,a);
u!1/B4!'O f_domain.Value=name.Substring(a+1,name.Length-(a+1));
pFIecca w f_pass.Value=Request.QueryString["Psw"];
#nEL~& }
6tdI6 J}@GKNm catch
Yx1 D) {
;[Tyt[
Script.Alert("错误的邮箱!");
WK;(P4Z Server.Transfer("index.aspx");
(=JueF@J }