1. 打开新的窗口并传送参数:
c:$:j,i} !
\gRXP} 传送参数:
UwM}!K7)G response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>")
[7Kn$OfP b%_QL3m6 接收参数:
Q3/q%#q> string a = Request.QueryString("id");
1a)_Lko string b = Request.QueryString("id1");
34?yQX{ ~/#?OLj(T 2.为按钮添加对话框
F9c2JBOM Button1.Attributes.Add("onclick","return confirm(’确认?’)");
qB=pp!zQ button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}")
sEj:%`l| 7<tqT
@c 3.删除表格选定记录
b\+|g9Tm int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
cj8r-Vu/N string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
JRiuU:=J~` \W\6m0-x 4.删除表格记录警告
Pw7'6W1 private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
YVaQ3o|! {
2h:f6=)r/u switch(e.Item.ItemType)
05zHL j {
|knP case ListItemType.Item :
:^*V[77 case ListItemType.AlternatingItem :
vV'^HD^v case ListItemType.EditItem:
Z8 # I TableCell myTableCell;
:E^B~ OuL myTableCell = e.Item.Cells[14];
7]^ } LinkButton myDeleteButton ;
I^wj7cFo5 myDeleteButton = (LinkButton)myTableCell.Controls[0];
)N6R# myDeleteButton.Attributes.Add("onclick","return confirm(’您是否确定要删除这条信息’);");
p/5!a~1'xN break;
zbi default:
\=_8G:1 break;
w|Mj8Lc+ }
e7?W VV, 1Efl|lV }
"p;DQ-V !'gz&3B~h 5.点击表格行链接另一页
"''<:K| private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
m0*
B[ {
eHJ7L8# //点击表格打开
b{ozt\: M if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
87Uv+((H e.Item.Attributes.Add("onclick","window.open(’Default.aspx?id=" + e.Item.Cells[0].Text + "’);");
2%<jYm#'z- }
}?~uAU- ~^euaOFU 6 双击表格连接到另一页
CeiU2.:U R P X`2zr 在itemDataBind事件中
o"FX+17 if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
xWwPrd {
v-gT
3kJ string OrderItemID =e.item.cells[1].Text;
rzmk-V ...
'H'+6 e.item.Attributes.Add("ondblclick", "location.href=’../ShippedGrid.aspx?id=" + OrderItemID + "’");
h@~X*yLKh }
e>>G4g ICTtubjV" 双击表格打开新一页
bSR<d if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
[s34N+vU {
&Kve vPF string OrderItemID =e.item.cells[1].Text;
wW<"l"x, ...
/SKr.S61e e.item.Attributes.Add("ondblclick", "open(’../ShippedGrid.aspx?id=" + OrderItemID + "’)");
W@C56fCa }
q5!l(QL. :fYwFD( 9 ★特别注意:【?id=】 处不能为 【?id =】
@r]s9~Lx9 6.表格超连接列传递参数
6uXW`/lvX <asp:HyperLinkColumn Target="_blank" headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id=’
pzax~Vp <%# DataBinder.Eval(Container.DataItem, "数据字段1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>’ />
tZYI{m{ nMa^Eq# 7.表格点击改变颜色
)[)]@e if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
Y z,!#ob$ {
/2cI{]B e.Item.Attributes.Add("onclick","this.style.backgroundColor=’#99cc00’;
4d 3Znpf this.style.color=’buttontext’;this.style.cursor=’default’;");
&v-V_.0(H }
Uaj=}p\+.p L@4zuzmlb 写在DataGrid的_ItemDataBound里
D+)=bPMe if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
0;h1LI) {
N.G*ii\ e.Item.Attributes.Add("onmouseover","this.style.backgroundColor=’#99cc00’;
UjDF this.style.color=’buttontext’;this.style.cursor=’default’;");
yKB[HpU- e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=’’;this.style.color=’’;");
`I>K? }
xI:
'Hk1 +.lWck 9$,gTU_a 8.关于日期格式
M96( Rg V0 F30rK 日期格式设定
_o?(t\B9{ DataFormatString="{0:yyyy-MM-dd}"
c9uT`h a-E-hX2 我觉得应该在itembound事件中
w~U`+2a3 e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
rc$!$~|I3Z mVK 9NK 9.获取错误信息并到指定页面
v|I5Gz$qpa k4$q|x7+% 不要使用Response.Redirect,而应该使用Server.Transfer
KY`96~z <VU4rk^= e.g
y,&M\3A // in global.asax
:2pBv#\"qk protected void Application_Error(Object sender, EventArgs e) {
o1WidJ" if (Server.GetLastError() is HttpUnhandledException)
)h0E$* Server.Transfer("MyErrorPage.aspx");
=]QH78\3 7Hl_[n| //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 :)
iHn!KV }
i"]8Zw_D f4I#a&DO 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
mrC+J* @6co\.bv 10.清空Cookie
@5jG Cookie.Expires=[DateTime];
B#6pQp$ Response.Cookies("UserName").Expires = 0
M6'C 3,y0 gww^?j# 11.自定义异常处理
vNt>ESPB //自定义异常处理类
ij(4)= using System;
9I\3T6&tr using System.Diagnostics;
!1'-'Q@f FMdLkyK; namespace MyAppException
%p2x^air {
)c*k_/4 /// <summary>
5g1M_8e'+ /// 从系统异常类ApplicationException继承的应用程序异常处理类。
K` ,d$ /// 自动将异常内容记录到Windows NT/2000的应用程序日志
GD[ou.C}k /// </summary>
*sB-scD public class AppException:System.ApplicationException
B`B%:# {
%i-lx`U public AppException()
~y2)&x
{
ES\Q5)t/fo if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");
~'2r&?=\ }
=/g$bZ Ydh<T F4! public AppException(string message)
9V;$v {
cvUut^CdK LogEvent(message);
A3$aMCwKd }
%Lp7@ _ML~c&9jv public AppException(string message,Exception innerException)
V<vPFxC {
>yBxa) LogEvent(message);
+&7Kk9^ if (innerException != null)
,=Nw(GI {
`8(h,aj; LogEvent(innerException.Message);
o? i.v0@!K }
k&A7alw }
nF<y7XkO `_1(Q9Q //日志记录类
PDt<lJU+X using System;
)J+{oB[>b using System.Configuration;
P iQkJ[ using System.Diagnostics;
5eOj,[? using System.IO;
BY*2yp}7 using System.Text;
tP`G]BCbt using System.Threading;
3_MS'&M V[Rrst0yo namespace MyEventLog
+lW}ixt {
adI!W-/R: /// <summary>
8pPC 9ew\= /// 事件日志记录类,提供事件日志记录支持
^.#X<8hr /// <remarks>
3kiE3*H /// 定义了4个日志记录方法 (error, warning, info, trace)
x_<bK$OU /// </remarks>
a_{io`h3& /// </summary>
vK6ibl0 public class ApplicationLog
qB F!b0lr {
>7nV$.5S /// <summary>
V3mjbH>F /// 将错误信息记录到Win2000/NT事件日志中
*IWFeu7y /// <param name="message">需要记录的文本信息</param>
sLG>>d3R1 /// </summary>
@0z0m;8 public static void WriteError(String message)
#P%1{l5m {
1BMB?I WriteLog(TraceLevel.Error, message);
A~SL5h }
2;4]PRD6w #Pu@Wx /// <summary>
G#w^:UL /// 将警告信息记录到Win2000/NT事件日志中
zg#m09[4 /// <param name="message">需要记录的文本信息</param>
f6B-~x<l /// </summary>
UZje>.~? public static void WriteWarning(String message)
#0bO)m+NZ {
TCHqe19? WriteLog(TraceLevel.Warning, message);
_ktK+8*6` }
+UK%t>E8 Q(|PZng /// <summary>
o)%-l4S /// 将提示信息记录到Win2000/NT事件日志中
,-(T"Ph< /// <param name="message">需要记录的文本信息</param>
id;#{O$ /// </summary>
Qj(vBo?D public static void WriteInfo(String message)
kmlG3hOR, {
RpO@pd m WriteLog(TraceLevel.Info, message);
7R9nMGJ@ }
5: daa /// <summary>
JF~1'"_f: /// 将跟踪信息记录到Win2000/NT事件日志中
c62dorDqy /// <param name="message">需要记录的文本信息</param>
AH2_#\ /// </summary>
/m`}f]u public static void WriteTrace(String message)
s\'y-UITi1 {
\3Dk5cSDk+ WriteLog(TraceLevel.Verbose, message);
<<=e9Lh }
K(nS$x1G C4QeDvpI /// <summary>
DX}B0B /// 格式化记录到事件日志的文本信息格式
m'cz5mcD /// <param name="ex">需要格式化的异常对象</param>
E X%6''ys /// <param name="catchInfo">异常信息标题字符串.</param>
$#%U\mIz /// <retvalue>
;,1=zhKU. /// <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
4_PCqEp) /// </retvalue>
pOC% oj /// </summary>
\ Md
3 public static String FormatException(Exception ex, String catchInfo)
Fe!D%p Qv {
aUH\Ee^M:R StringBuilder strBuilder = new StringBuilder();
YD&|1h if (catchInfo != String.Empty)
F9(._ow[ {
T@TIzz strBuilder.Append(catchInfo).Append("\r\n");
_om0
e=5) }
n*4lz^LR strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
oZTgN .q return strBuilder.ToString();
&v^!y=Bt }
bIgh@= 2 {<qF }i:V /// <summary>
.L9']zXc` /// 实际事件日志写入方法
'_:(oAi,C /// <param name="level">要记录信息的级别(error,warning,info,trace).</param>
B*\$
/bk, /// <param name="messageText">要记录的文本.</param>
!FTNmyM~F /// </summary>
w8O" =}, private static void WriteLog(TraceLevel level, String messageText)
IY=/`g {
jY7=mAd try
*YWk1Cwjo {
wfgqgPo!v EventLogEntryType LogEntryType;
?4XnEDAm switch (level)
pb!V|#u" {
qgoJ4Z* case TraceLevel.Error:
)Im3'0l> LogEntryType = EventLogEntryType.Error;
9\HR60V break;
sI_7U^"[ case TraceLevel.Warning:
qv[[Q[RK-5 LogEntryType = EventLogEntryType.Warning;
$
+;+:K break;
|]`hXr case TraceLevel.Info:
\(I0wEQo$ LogEntryType = EventLogEntryType.Information;
@q K]JK break;
U{6oLqwq3Y case TraceLevel.Verbose:
_V@WNo%B LogEntryType = EventLogEntryType.SuccessAudit;
HBH$
break;
xc9YM0B& default:
/<);=&[ LogEntryType = EventLogEntryType.SuccessAudit;
QK)){cK break;
JB3 "EFv }
!8sgq{x(( 4({(i EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );
C{EAmv' //写入事件日志
3jjMY eventLog.WriteEntry(messageText, LogEntryType);
r-}-C! 0}{'C5 }
vw2`:]Q+ catch {} //忽略任何异常
{_?rh,9q }
H`~;|6}]n } //class ApplicationLog
x2co>.i }
j~;;l!({i H~noJIw# 12.Panel 横向滚动,纵向自动扩展
OS-sk! <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
^$v3eKA rLU'*} 13.回车转换成Tab
9'?se5\ <script language="javascript" for="document" event="onkeydown">
aSC9&Nf; if(event.keyCode==13 && event.srcElement.type!=’button’ && event.srcElement.type!=’submit’ && event.srcElement.type!=’reset’ && event.srcElement.type!=’’&& event.srcElement.type!=’textarea’);
)p<WDiX1!e event.keyCode=9;
y<pnp?x4 </script>
c.AYxI" Q_]d5pl onkeydown="if(event.keyCode==13) event.keyCode=9"
J'b<z.OW "F*'UfOwrZ 14.DataGrid超级连接列
(v\Cv)OS DataNavigateUrlField="字段名" DataNavigateUrlFormatString="
http://xx/inc/delete.aspx?ID={0}"
![v@+9 w;;.bz m 15.DataGrid行随鼠标变色
)cMW, private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
F_Q?0 Do0' {
$=?CW( if (e.Item.ItemType!=ListItemType.Header)
6L~tUe.G {
J)w58/`?t e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.Style["BACKGROUND-COLOR"]+"\"");
l9J ]<gG e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
nj7wc9z4 }
z'G~b[kG4n }
2{!^"iW 4gTD HQP 16.模板列
QX*HvT <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
tsFwFB* <ITEMTEMPLATE>
mv1_vF: <ASP:LABEL text=’<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>’ runat="server" width="80%" id="lblColumn" />
COx<X\ </ITEMTEMPLATE>
?T\m
V} </ASP:TEMPLATECOLUMN>
l"\W] 'T:r \gh`PS-B <ASP:TEMPLATECOLUMN headertext="选中">
WrR97]7t <HEADERSTYLE wrap="False" horizontalalign="Center"></HEADERSTYLE>
u= |hRTD= <ITEMTEMPLATE>
}<EA)se" <ASP:CHECKBOX id="chkExport" runat="server" />
s^/<6kwO </ITEMTEMPLATE>
u0md ^ <EDITITEMTEMPLATE>
rsp?N{e <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
O1.a=O </EDITITEMTEMPLATE>
Om%9 x </ASP:TEMPLATECOLUMN>
/;%[:x ;)^eDJ< 后台代码
{I!sXj protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
By
t{3$ {
aqjS 5!qh //改变列的选定,实现全选或全不选。
~$0Qvyb> CheckBox chkExport ;
0YsC@r47wL if( CheckAll.Checked)
E47U &xL {
Q1G?e,Q foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
He4sP`&I {
;P-xKRU!Xx chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
yK +&1U2` chkExport.Checked = true;
J^@0Ff;=5^ }
V}l>p? }
U20G{%% else
$lj1924?^ {
u3 mTsq! foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
o9!DK {
glk_*x chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
<t{T]i+ chkExport.Checked = false;
y[*Bw)F\N }
zS*X9|p }
Z#wmEc.}C }
^/Id!Y7 eD0Rv0BV^ 17.数字格式化
eCYgi7? ^X%{]b K 【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】
[~;#]az <%#Container.DataItem("price","{0:¥#,##0.00}")%>
)fz)Rrr SC~cryb int i=123456;
Ks.pb !r string s=i.ToString("###,###.00");
0u4:=Z}W $ 1 N_qu 18.日期格式化
;as4EqiK m8Q6ESg<*u 【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
djeax G)b6Rit 显示为: 2004-8-11 19:44:28
:^DuB_ S6 F28 d[j 我只想要:2004-8-11 】
nn@"68]g <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
N\IdZX%u )#9R()n! 应该如何改?
kfo, PrW`A LI[ w?6B 【格式化日期】
9-DDly [)4 S~+}_$ 取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
k`W.tMo }LNpr 【日期的验证表达式】
#msXAy$N3r f i-E_ A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]
r'/7kF- 5 ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$
b$P=rIB 8>Hnv]p B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]
d ,| W ^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$
xp%,@]p &eQF[8 , 【大小写转换】
3u7^*$S HttpUtility.HtmlEncode(string);
/JL2dBy#z HttpUtility.HtmlDecode(string)
e,qc7BJzK @ oE [! 19.如何设定全局变量
9l?#ZuGXp O $uXQ.r Global.asax中
^$aj,*Aj~ . gK*Jpmx Application_Start()事件中
s@C@q(i6 i,BE]w 添加Application[属性名] = xxx;
IZczHHEL`b Z
4uft 就是你的全局变量
$u`y ]3<k>? 20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?
95;q] =U |1H"ya HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")
h_4o4# Z |uII#lq 【ASPNETMENU】点击菜单项弹出新窗口
'G3B02* )/h~csy:~ 在你的menuData.xml文件的菜单项中加入URLTarget="_blank",如:
$D8eCjUm <?xml version="1.0" encoding="GB2312"?>
\D] N* <MenuData ImagesBaseURL="images/">
_NAKVzo- <MenuGroup>
]R/VE"- <MenuItem Label="内参信息" URL="Infomation.aspx" >
6X5`npf <MenuGroup ID="BBC">
Hd6g0 <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
["}0umt <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
R=~+- ^O! ......
U]lXw+& m]JZ@ 最好将你的aspnetmenu升级到1.2版
t%<nS=u D^To:N7U 21.读取DataGrid控件TextBox值
I ;N)jj`b foreach(DataGrid dgi in yourDataGrid.Items)
~qm<~T_0 {
7vR JQe) TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
xt@zP)6G tb.Text....
+5Yc/Qp }
2~+_T |?0Cm|? 23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?
A,rgN;5fb 2-i>ymoOS 〖思归〗
b(dIl)Y4
: <asp:TemplateColumn HeaderText="数量">
uYAPGs#k <ItemTemplate>
O:3pp8 <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
Z[
}0K3,5 onkeyup="javascript:DoCal()"
S+A'\{f />
Ob2H7! Af5O;v\ <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
zlIXia5 </ItemTemplate>
dL'hC#!h </asp:TemplateColumn>
VL"!.^'c "; tl>Ot <asp:TemplateColumn HeaderText="单价">
> bWsUG9 <ItemTemplate>
>}h/$bU <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
,JyE7h2%i onkeyup="javascript:DoCal()"
Rm 1obP />
%iY-}uhO Yw<K!'C <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />
pc<")9U%/ WK]SHiHD </ItemTemplate>
zr%lBHuW </asp:TemplateColumn>
#q40 >)] ?"\`u; <asp:TemplateColumn HeaderText="金额">
vbzeabm <ItemTemplate>
?J,hv'L] <asp:TextBox id="JinE" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>’ />
&yv%"BPV </ItemTemplate>
- XIjol( </asp:TemplateColumn><script language="javascript">
@yPa9Ug(V function DoCal()
Ia$&SS)K {
g4_DEBh var e = event.srcElement;
,# rl" var row = e.parentNode.parentNode;
703=.xj var txts = row.all.tags("INPUT");
i /R8Gb if (!txts.length || txts.length < 3)
O/$pT%D1x return;
Oz!#);v M0DdrL/
L var q = txts[txts.length-3].value;
&mDKpYrB var p = txts[txts.length-2].value;
\[oU7r}?/V {`BC$V if (isNaN(q) || isNaN(p))
9'C kV [ return;
D`PnY&ffT EAp6IhW{ q = parseInt(q);
Udv5Y p = parseFloat(p);
f
sAgXv
QN:gSS{30 txts[txts.length-1].value = (q * p).toFixed(2);
s2L|J[Y"s }
1iEZ9J? </script>
Urur/_]-% tpj({
x; 89lHy@e o&)O&bNJ {; ]:}nA 24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了。
JyWBLi;Z page_load
r 11:T3
page.smartNavigation=true
aN{C86wx y-O#
+{7 25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?
1[o] u:m9U private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
?#ue:O1 {
+lmMBjDa for(int i=0;i<e.Item.Cells.Count-1;i++)
He="S3XON if(e.Item.ItemType==ListItemType.EditType)
'$*d:1 {
1BUdl=o>S e.Item.Cells.Attributes.Add("Width", "80px")
{ecmOxKP} }
0{g @j{Lbz }
I^sWf3'db YG$2ySkDhE 26.对话框
"&%:
9O private static string ScriptBegin = "<script language=\"JavaScript\">";
5*~Mv<# private static string ScriptEnd = "</script>";
I
<`9ANe W@v@|D@ public static void ConfirmMessageBox(string PageTarget,string Content)
<T{2a\i 4f {
$Z(fPKRN/ string ConfirmContent="var retValue=window.confirm(’"+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
uhvmh bs$x%CR ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
jC>l<d_ rXXIpQRi$S Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
[,)yc/{* ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
De,4r(5 //Response.Write(strScript);
Z<6xQTx }
Vd^_4uqnV 5f2ah4 g 27. 将时间格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日");
t_ 5b :#v8K;C 1.1 取当前年月日时分秒
.f
4a+w currentTime=System.DateTime.Now;
}q9;..oL "ut:\%39. 1.2 取当前年
j>X;a39| int 年= DateTime.Now.Year;
4a]m=]Hm 4&;.>{:; 1.3 取当前月
B8-v!4b0` int 月= DateTime.Now.Month;
GCCmUR9d N8|=K_;& 1.4 取当前日
hM\<1D
CKG int 日= DateTime.Now.Day;
CLU !/J$! {^gbS 1.5 取当前时
AEaT int 时= DateTime.Now.Hour;
&WAO.*:y n~N>c*p 1.6 取当前分
:" Q!Q@> int 分= DateTime.Now.Minute;
j|gv0SI_
w TtEc~m 1.7 取当前秒
fI(u-z~, int 秒= DateTime.Now.Second;
+N1oOcPC>C r(NfVQF 1.8 取当前毫秒
=ZM #_uW int 毫秒= DateTime.Now.Millisecond;
8$a4[s
<r]7xsr 28.自定义分页代码:
2f(5C*~ o8\@R 先定义变量 :
_l,?Y;OF public static int pageCount; //总页面数
c\~H_ ~F public static int curPageIndex=1; //当前页面
bA\TuB Q/r0p> 下一页:
^p(t*%LM if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
e\i K {
5g
,u\` DataGrid1.CurrentPageIndex += 1;
{n}6 curPageIndex+=1;
J,;[n*s }
^Cb7R/R3 %0T/>:1[E bind(); // DataGrid1数据绑定函数
$,"{g<*k; 3`_jNPV1 上一页:
*A}QBZ if(DataGrid1.CurrentPageIndex >0)
2Cn^<(F^4I {
-dbD&8 DataGrid1.CurrentPageIndex += 1;
[tDUR curPageIndex-=1;
%
INRds }
B% !z7AT 2zR*`9$ bind(); // DataGrid1数据绑定函数
J7X-=E D d!/@+i 直接页面跳转:
RbX!^v<0f6 int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()为跳转值
.{
^4I S W(h%`U if(a<DataGrid1.PageCount)
9i@AOU {
CBdSgHA3> this.DataGrid1.CurrentPageIndex=a;
7onMKMktM% }
2%\Nq:;T Jhu<^pjs bind();
_l]`Og@Y <K!5N&vh 29.DataGrid使用:
F4X/ )$Dk 'TpW-r: 添加删除确认:
Q(h,P+ private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
F^bC!;~x {
{V%ZOdg9 foreach(DataGridItem di in this.DataGrid1.Items)
Ib.`2@o& {
Im%|9g;P if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
Zzr+p. {
w]
LN(o: ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’确认删除此项吗?’);");
Frn#?n)S9 }
9PhdoREb }
Z'dY,<@ }
TuY{c%qQ: \W;~[-"# 样式交替:
}/BwFB+(/ ListItemType itemType = e.Item.ItemType;
?TLEZlB2" 0(#HMBE8 if (itemType == ListItemType.Item )
pHFlO!#]| {
*)"U5A/v) e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
fEc}c.!5 e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
5}
|O }
, M$*c else if( itemType == ListItemType.AlternatingItem)
#EtS9D'd+ {
Mp;t?C4 e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
] ,Wh]q e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
84tuN }
0$l=ME( `*PVFm> 添加一个编号列:
6u/3"A]' DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //执行sql返回的DataTable
B#o(21s DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
Dr6"~5~9w OO_{o for(int i=0;i<dt.Rows.Count;i++)
LA$uD?YA {
1Lwi?~!LI dt.Rows["number"]=(i+1).ToString();
0K7]<\) }
!e6;@ * k\_>/)g DataGrid1.DataSource=dt;
W]5kM~Q@ DataGrid1.DataBind();
5)V]qV$
evsH>hE^ DataGrid1中添加一个CheckBox,页面中添加一个全选框
C- ]H+p private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
q]:+0~cz {
n"Ec %n foreach(DataGridItem thisitem in DataGrid1.Items)
f2[z)j7 {
OTd=(dwh ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
|s|>46E }
!Jb?rSJ.h }
4?M=?K0 O;
EI& 将当前页面中DataGrid1显示的数据全部删除
94I8~Jj4 foreach(DataGridItem thisitem in DataGrid1.Items)
@]tFRV {
F0:Fv; if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
'[JrP<~^o {
"[@-p string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
7;KmJ}$ Del (strloginid); //删除函数
|Z6rP- }
T
:CsYj1
}
$f>Mz|j W-=~Afy 30.当文件在不同目录下,需要获取数据库连接字符串(如果连接字符串放在Web.config,然后在Global.asax中初始化)
^te9f%>$l m}6GVQ'Q 在Application_Start中添加以下代码:
rS/Q Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
z_!P0` AppSettings["ConnStr"].ToString();
8<3J!X+ _Pa(5-S'KR 31. 变量.ToString()
D9e"E1f+" e%x$Cb:znn 字符型转换 转为字符串
0sVCTJ@ 12345.ToString("n"); //生成 12,345.00
zm2&\8J 12345.ToString("C"); //生成 ¥12,345.00
2j-|.l c 12345.ToString("e"); //生成 1.234500e+004
] =b?^' 12345.ToString("f4"); //生成 12345.0000
:Y
y+% 12345.ToString("x"); //生成 3039 (16进制)
B:ddlxT$ 12345.ToString("p"); //生成 1,234,500.00%
N::_JH?^= `y0ZFh1>X 32、变量.Substring(参数1,参数2);
00?^!'; &