1.打开新的窗口并传送参数:
传送参数:
response.write("<script>window.open('*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"')</script>")
接收参数:
stringa=Request.QueryString("id");
stringb=Request.QueryString("id1");
2.为按钮添加对话框
Button1.Attributes.Add("onclick","returnconfirm('确认?')");
button.attributes.add("onclick","if(confirm('areyousure...?')){returntrue;}else{returnfalse;}")
3.删除表格选定记录
intintEmpID=(int)MyDataGrid.DataKeys[e.Item.ItemIndex];
stringdeleteCmd="DELETEfromEmployeewhereemp_id="+intEmpID.ToString()
4.删除表格记录警告
privatevoidDataGrid_ItemCreated(Objectsender,DataGridItemEventArgse)
{
switch(e.Item.ItemType)
{
caseListItemType.Item:
caseListItemType.AlternatingItem:
caseListItemType.EditItem:
TableCellmyTableCell;
myTableCell=e.Item.Cells[14];
LinkButtonmyDeleteButton;
myDeleteButton=(LinkButton)myTableCell.Controls[0];
myDeleteButton.Attributes.Add("onclick","returnconfirm('您是否确定要删除这条信息');");
break;
default:
break;
}
}
5.点击表格行链接另一页
privatevoidgrdCustomer_ItemDataBound(objectsender,System.Web.UI.WebControls.DataGridItemEventArgse)
{
//点击表格打开
if(e.Item.ItemType==ListItemType.Item||e.Item.ItemType==ListItemType.AlternatingItem)
e.Item.Attributes.Add("onclick","window.open('Default.aspx?id="+e.Item.Cells[0].Text+"');");
}
双击表格连接到另一页
在itemDataBind事件中
if(e.Item.ItemType==ListItemType.Item||e.Item.ItemType==ListItemType.AlternatingItem)
{
stringOrderItemID=e.item.cells[1].Text;
...
e.item.Attributes.Add("ondblclick","location.href='../ShippedGrid.aspx?id="+OrderItemID+"'");
}
双击表格打开新一页
if(e.Item.ItemType==ListItemType.Item||e.Item.ItemType==ListItemType.AlternatingItem)
{
stringOrderItemID=e.item.cells[1].Text;
...
e.item.Attributes.Add("ondblclick","open('../ShippedGrid.aspx?id="+OrderItemID+"')");
}
6.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")%>'/>
7.表格点击改变颜色
if(e.Item.ItemType==ListItemType.Item||e.Item.ItemType==ListItemType.AlternatingItem)
{
e.Item.Attributes.Add("onclick","this.style.backgroundColor='#99cc00';
this.style.color='buttontext';this.style.cursor='default';");
}
写在DataGrid的_ItemDataBound里
if(e.Item.ItemType==ListItemType.Item||e.Item.ItemType==ListItemType.AlternatingItem)
{
e.Item.Attributes.Add("onmouseover","this.style.backgroundColor='#99cc00';
this.style.color='buttontext';this.style.cursor='default';");
e.Item.Attributes.Add("onmouseout","this.style.backgroundColor='';this.style.color='';");
}
8.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
e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))
9.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
10.清空Cookie
Cookie.Expires=[DateTime];
Response.Cookies("UserName").Expires=0
11.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("rn");
}
strBuilder.Append(ex.Message).Append("rn").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
}