');\"href=\"pushproduct.aspx?
dl="+DataBinder.Eval(Container.DataItem,"code")+"\">"+"删除"+""%>
9.//输出数据格式化"{0:
F2}"是格式F2表示小数点后剩两位
<%#DataBinder.Eval(Container,"DataItem.PriceMoney","{0:
F2}")%>
10.//提取动态网页内容
Uriuri=newUri("");
WebRequestreq=WebRequest.Create(uri);
WebResponseresp=req.GetResponse();
Streamstr=resp.GetResponseStream();
StreamReadersr=newStreamReader(str,;
stringt=sr.ReadToEnd();
;
11.//获取"."后面的字符
i.ToString().Trim().Substring(i.ToString().Trim().LastIndexOf(".")+1).ToLower().Trim()
12.打开新的窗口并传送参数:
传送参数:
response.write("<script>window.open(’*.aspx?
id="+"&id1="+...+"’)</script>")
接收参数:
stringa=Request.QueryString("id");
stringb=Request.QueryString("id1");
12.为按钮添加对话框
"onclick","returnconfirm(’确认?
’)");
"onclick","if(confirm(’areyousure...?
’)){returntrue;}else{returnfalse;}")
13.删除表格选定记录
intintEmpID=(int)MyDataGrid.DataKeys[;
stringdeleteCmd="DeletefromEmployeewhereemp_id="+intEmpID.ToString()
14.删除表格记录警告
privatevoidDataGrid_ItemCreated(Objectsender,DataGridItemEventArgse)
{
switch(
{
caseListItemType.Item:
caseListItemType.AlternatingItem:
caseListItemType.EditItem:
TableCellmyTableCell;
myTableCell=;
LinkButtonmyDeleteButton;
myDeleteButton=(LinkButton)myTableCell.Controls[0];
"onclick","returnconfirm(’您是否确定要删除这条信息’);");
break;
default:
break;
}
}
15.点击表格行链接另一页
privatevoidgrdCustomer_ItemDataBound(objectsender,e)
{
//点击表格打开
if(==ListItemType.Item||==ListItemType.AlternatingItem)
"onclick","window.open(’Default.aspx?
id="++"’);");
}
双击表格连接到另一页
在itemDataBind事件中
if(==ListItemType.Item||==ListItemType.AlternatingItem)
{
stringorderItemID=;
"ondblclick","location.href=’../ShippedGrid.aspx?
id="+orderItemID+"’");
}
双击表格打开新一页
if(==ListItemType.Item||==ListItemType.AlternatingItem)
{
stringorderItemID=;
"ondblclick","open(’../ShippedGrid.aspx?
id="+orderItemID+"’)");
}
16.表格超连接列传递参数
<asp:
HyperLinkColumnTarget="_blank"headertext="ID号"DataTextField="id"NavigateUrl="aaa.aspx?
id=’
<%#DataBinder.Eval(Container.DataItem,"数据字段1")%>’&name=’<%#DataBinder.Eval(Container.DataItem,"数据字段2")%>’/>
17.表格点击改变颜色
if(==ListItemType.Item||==ListItemType.AlternatingItem)
{
"onclick",";
;;");
}
写在DataGrid的_ItemDataBound里
if(==ListItemType.Item||==ListItemType.AlternatingItem)
{
"onmouseover",";
;;");
"onmouseout",";;");
}
18.关于日期格式
日期格式设定
DataFormatString="{0:
yyyy-MM-dd}"
我觉得应该在itembound事件中
"你的列"].text=DateTime.Parse("你的列"].text.ToString("yyyy-MM-dd"))
19.获取错误信息并到指定页面
不要使用Response.Redirect,而应该使用Server.Transfer
e.g
//inglobal.asax
protectedvoidApplication_Error(Objectsender,EventArgse){
if(Server.GetLastError()isHttpUnhandledException)
Server.Transfer("MyErrorPage.aspx");
//其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了:
)
}
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
20.清空Cookie
Cookie.Expires=[DateTime];
Response.Cookies("UserName").Expires=0
21.自定义异常处理
//自定义异常处理类
usingSystem;
usingSystem.Diagnostics;
namespaceMyAppException
{
///<summary>
///从系统异常类ApplicationException继承的应用程序异常处理类。
///自动将异常内容记录到WindowsNT/2000的应用程序日志
///</summary>
publicclassAppException:
System.ApplicationException
{
publicAppException()
{
if(ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。
");
}
publicAppException(stringmessage)
{
LogEvent(message);
}
publicAppException(stringmessage,ExceptioninnerException)
{
LogEvent(message);
if(innerException!
=null)
{
LogEvent(innerException.Message);
}
}
//日志记录类
usingSystem;
usingSystem.Configuration;
usingSystem.Diagnostics;
usingSystem.IO;
usingSystem.Text;
usingSystem.Threading;
namespaceMyEventLog
{
///<summary>
///事件日志记录类,提供事件日志记录支持
///<remarks>
///定义了4个日志记录方法(error,warning,info,trace)
///</remarks>
///</summary>
publicclassApplicationLog
{
///<summary>
///将错误信息记录到Win2000/NT事件日志中
///<paramname="message">需要记录的文本信息</param>
///</summary>
publicstaticvoidWriteError(Stringmessage)
{
WriteLog(TraceLevel.Error,message);
}
///<summary>
///将警告信息记录到Win2000/NT事件日志中
///<paramname="message">需要记录的文本信息</param>
///</summary>
publicstaticvoidWriteWarning(Stringmessage)
{
WriteLog(TraceLevel.Warning,message);
}
///<summary>
///将提示信息记录到Win2000/NT事件日志中
///<paramname="message">需要记录的文本信息</param>
///</summary>
publicstaticvoidWriteInfo(Stringmessage)
{
WriteLog(TraceLevel.Info,message);
}
///<summary>
///将跟踪信息记录到Win2000/NT事件日志中
///<paramname="message">需要记录的文本信息</param>
///</summary>
publicstaticvoidWriteTrace(Stringmessage)
{
WriteLog(TraceLevel.Verbose,message);
}
///<summary>
///格式化记录到事件日志的文本信息格式
///<paramname="ex">需要格式化的异常对象</param>
///<paramname="catchInfo">异常信息标题字符串.</param>
///<retvalue>
///<para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
///</retvalue>
///</summary>
publicstaticStringFormatException(Exceptionex,StringcatchInfo)
{
StringBuilderstrBuilder=newStringBuilder();
if(catchInfo!
=String.Empty)
{
strBuilder.Append(catchInfo).Append("\r\n");
}
strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
returnstrBuilder.ToString();
}
///<summary>
///实际事件日志写入方法
///<paramname="level">要记录信息的级别(error,warning,info,trace).</param>
///<paramname="messageText">要记录的文本.</param>
///</summary>
privatestaticvoidWriteLog(TraceLevellevel,StringmessageText)
{
try
{
EventLogEntryTypeLogEntryType;
switch(level)
{
caseTraceLevel.Error:
LogEntryType=EventLogEntryType.Error;
break;
caseTraceLevel.Warning:
LogEntryType=EventLogEntryType.Warning;
break;
caseTraceLevel.Info:
LogEntryType=EventLogEntryType.Information;
break;
caseTraceLevel.Verbose:
LogEntryType=EventLogEntryType.SuccessAudit;
break;
default:
LogEntryType=EventLogEntryType.SuccessAudit;
break;
}
EventLogeventLog=newEventLog("Application",ApplicationConfiguration.EventLogMachineName,ApplicationConfiguration.EventLogSourceName);
//写入事件日志
eventLog.WriteEntry(messageText,LogEntryType);
}
catch{}//忽略任何异常
}
}//classApplicationLog
}
22.Panel横向滚动,纵向自动扩展
<asp:
panelstyle="overflow-x:
scroll;overflow-y:
auto;"></asp:
panel>
23.回车转换成Tab
(1)
<scriptlanguage="javascript"for="document"event="onkeydown">
if(event.keyCode==13&&&&&& &&;
event.keyCode=9;
</script>
(2)//当在有keydown事件的控件上敲回车时,变为tab
publicvoidTab(System.Web.UI.WebControls.WebControlwebcontrol)
{
webcontrol.Attributes.Add("onkeydown","if(event.keyCode==13)event.keyCode=9");
}
24.DataGrid超级连接列
DataNavigateUrlField="字段名"DataNavigateUrlFormatString=""
25.DataGrid行随鼠标变色
privatevoidDGzf_ItemDataBound(objectsender,e)
{
if(
{
"onmouseout","""+"BACKGROUND-COLOR"]+"\"");
"onmouseover","""+"#EFF3F7"+"\"");
}
}
26.模板列
<ASP:
TEMPLATECOLUMNvisible="False"sortexpression="demo"headertext="ID">
<ITEMTEMPLATE>
<ASPLABELtext=’<%#DataBinder.Eval(Container.DataItem,"ArticleID")%>’runat="server"width="80%"id="lblColumn"/>
</ITEMTEMPLATE>
</ASP:
TEMPLATECOLUMN>
<ASP:
TEMPLATECOLUMNheadertext="选中">
<HEADERSTYLEwrap="False"horiz></HEADERSTYLE>
<ITEMTEMPLATE>
<ASP:
CHECKBOXid="chkExport"runat="server"/>
</ITEMTEMPLATE>
<EDITITEMTEMPLATE>
<ASP:
CHECKBOXid="chkExportON"runat="server"enabled="true"/>
</EDITITEMTEMPLATE>
</ASP:
TEMPLATECOLUMN>
后台代码
protectedvoidCheckAll_CheckedChanged(objectsender,System.EventArgse)
{
//改变列的选定,实现全选或全不选。
CheckBoxchkExport;
if(CheckAll.Checked)
{
foreach(DataGridItemoDataGridIteminMyDataGrid.Items)
{
chkExport=(CheckBox)oDataGridItem.FindControl("chkExport");
chkExport.Checked=true;
}
}
else
{
foreach(DataGridItemoDataGridIteminMyDataGrid.Items)
{
chkExport=(CheckBox)oDataGridItem.FindControl("chkExport");
chkExport.Checked=false;
}
}
}
27.数字格式化
【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?
】
<%#Container.DataItem("price","{0:
¥#,##0.00}")%>
inti=123456;
strings=i.ToString("###,###.00");
28.日期格式化
【aspx页面内:
<%#DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
显示为:
2004-8-1119:
44:
28
我只想要:
2004-8-11】
<%#DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:
yyyy-M-d}")%>
应该如何改?
【格式化日期】
取出来,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd");
【日期的验证表达式】
A.以下正确的输入格式:
[2004-2-29],[2004-02-2910:
29:
39pm],[2004/12/31]
^((\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