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(’areyou 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","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 + "’)");}
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.asaxprotected 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CookieCookie.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,ExceptioninnerException) { 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 /// <paramname="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 /// <paramname="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 /// <paramname="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 /// <paramname="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 /// <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> 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 /// <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> private static void WriteLog(TraceLevel level, StringmessageText) { 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 = newEventLog("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:panelstyle="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’&& event.srcElement.type!=’reset’&& event.srcElement.type!=’’&& event.srcElement.type!=’textarea’); event.keyCode=9;</script>onkeydown="if(event.keyCode==13) event.keyCode=9" 14.DataGrid超级连接列DataNavigateUrlField="字段名"DataNavigateUrlFormatString="http://xx/inc/delete.aspx?ID={0}"
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