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:
string a = Request.QueryString("id");string b = Request.QueryString("id1");
2.为按钮添加对话框
Button1.Attributes.Add("onclick","return confirm(‘确认?’)");button.attributes.add("onclick","if(confirm(‘are you sure……?’)){return true;}else{return false;}")
3.删除表格选定记录
int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()
4.删除表格记录警告
private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
{ switch(e.Item.ItemType)
{ case ListItemType.Item :case ListItemType.AlternatingItem :case ListItemType.EditItem:TableCell myTableCell;myTableCell = e.Item.Cells[14];LinkButton myDeleteButton ;myDeleteButton = (LinkButton)myTableCell.Controls[0];myDeleteButton.Attributes.Add("onclick","return confirm(‘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
private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{ //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)
{ string OrderItemID =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)
{ string OrderItemID =e.item.cells[1].Text;……
e.item.Attributes.Add("ondblclick", "open(‘……/ShippedGrid.aspx?id=" + OrderItemID + "’)");}
★特别注意:「?id=」 处不能为 「?id =」
6.表格超连接列传递参数
<asp:HyperLinkColumn Target="_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
// in global.asax protected void Application_Error(Object sender, EventArgs e) { if (Server.GetLastError() is HttpUnhandledException)
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using System;using System.Diagnostics;
namespace MyAppException { /// <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Windows NT/2000的应用程序日志/// </summary>public class AppException:System.ApplicationException { public AppException()
{ if (ApplicationConfiguration.EventLogEnabled)LogEvent("出现一个未知错误。");}
public AppException(string message)
{ LogEvent(message);}
public AppException(string message,Exception innerException)
{ LogEvent(message);if (innerException != null)
{ LogEvent(innerException.Message);}
//日志记录类using System;using System.Configuration;using System.Diagnostics;using System.IO;using System.Text;using System.Threading;
namespace MyEventLog { /// <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>public class ApplicationLog { /// <summary>/// 将错误信息记录到Win2000/NT事件日志中/// <param name="message">需要记录的文本信息</param>/// </summary>public static void WriteError(String message)
{ WriteLog(TraceLevel.Error, message);}
/// <summary>/// 将警告信息记录到Win2000/NT事件日志中/// <param name="message">需要记录的文本信息</param>/// </summary>public static void WriteWarning(String message)
{ WriteLog(TraceLevel.Warning, message);}
/// <summary>/// 将提示信息记录到Win2000/NT事件日志中/// <param name="message">需要记录的文本信息</param>/// </summary>public static void WriteInfo(String message)
{ WriteLog(TraceLevel.Info, message);} /// <summary>/// 将跟踪信息记录到Win2000/NT事件日志中/// <param name="message">需要记录的文本信息</param>/// </summary>public static void WriteTrace(String message)
{ WriteLog(TraceLevel.Verbose, message);}
/// <summary>/// 格式化记录到事件日志的文本信息格式/// <param name="ex">需要格式化的异常对象</param>/// <param name="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>public static String FormatException(Exception ex, String catchInfo)
{ StringBuilder strBuilder = new StringBuilder();if (catchInfo != String.Empty)
{ strBuilder.Append(catchInfo)。Append("\r\n");} strBuilder.Append(ex.Message)。Append("\r\n")。Append(ex.StackTrace);return strBuilder.ToString();}
/// <summary>/// 实际事件日志写入方法/// <param name="level">要记录信息的级别(error,warning,info,trace)。</param>/// <param name="messageText">要记录的文本。</param>/// </summary>private static void WriteLog(TraceLevel level, String messageText)
{ try { EventLogEntryType LogEntryType;switch (level)
{ case TraceLevel.Error:LogEntryType = EventLogEntryType.Error;break;case TraceLevel.Warning:LogEntryType = EventLogEntryType.Warning;break;case TraceLevel.Info:LogEntryType = EventLogEntryType.Information;break;case TraceLevel.Verbose:LogEntryType = EventLogEntryType.SuccessAudit;break;default:LogEntryType = EventLogEntryType.SuccessAudit;break;}
EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName, ApplicationConfiguration.EventLogSourceName );//写入事件日志eventLog.WriteEntry(messageText, LogEntryType);
} catch {} //忽略任何异常} } //class ApplicationLog }
12.Panel 横向滚动,纵向自动扩展
<asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
13.回车转换成Tab
<script language="javascript" for="document" event="onkeydown">if(event.keyCode==13 && event.srcElement.type!=‘button’ && event.srcElement.type!=‘submit’ &&
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