1.//弹出对话框.点击转向指定页面Response.Write("<script>window.alert('该会员没有提交申请,请重新提交！')</script>");Response.Write("<script>window.location ='http://www.51aspx.com/bizpulic/upmeb.aspx'</script>");2.//弹出对话框Response.Write("<script language='javascript'>alert('产品添加成功！')</script >");3.//删除文件string filename ="20059595157517.jpg";pub.util.DeleteFile(HttpContext.Current.Server.MapPath("../file/")+filename);4.//绑定下拉列表框datalistSystem.Data.DataView dv=conn.Exec_ex("select -1 as code,'请选择经营模式' as content from dealin union select code,content from dealin");this.dealincode.DataSource=dv;this.dealincode.DataTextField="content";this.dealincode.DataValueField="code"; this.dealincode.DataBind();this.dealincode.Items.FindByValue(dv[0]["dealincode"].ToString()).Selected=true;5.//时间去秒显示<%# System.DateTime.Parse(DataBinder.Eval(Container.DataItem,"begtime").ToString()).ToShortDateString()%>6.//标题带链接<%# "<a class=/"12c/" target=/"_blank/" href=/"http://www.51aspx/CV/_%22+DataBinder.Eval(Container.DataItem,%22procode%22)+%22.html/">"+ DataBinder.Eval(Container.DataItem,"proname")+"</a>"%>7.//修改转向<%# "<A href=/"editpushpro.aspx?id="+DataBinder.Eval(Container.DataItem,"code")+"/">"+"修改"+"</A>"%>8.//弹出确定按钮<%# "<A id=/"btnDelete/" οnclick=/"return confirm('你是否确定删除这条记录吗?');/" href=/"pushproduct.aspx?dl="+DataBinder.Eval(Container.DataItem,"code")+" /">"+"删除"+"</A>"%>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Uri uri = new Uri("http://www.51aspx.com/"); WebRequest req = WebRequest.Create(uri); WebResponse resp = req.GetResponse(); Stream str = resp.GetResponseStream(); StreamReader sr = new StreamReader(str,System.Text.Encoding.Default); string t = sr.ReadToEnd(); this.Response.Write(t.ToString());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="+this.DropDownList1.SelectIndex+"&id1="+...+"')</script>")接收参数：string a = Request.QueryString("id");string b = Request.QueryString("id1");12.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;}")13.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()14.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; }}15.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 + "')");}16.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")%>' />17.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='';");}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e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["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// 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 20.清空CookieCookie.Expires=[DateTime];Response.Cookies("UserName").Expires = 021.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}22.Panel 横向滚动，纵向自动扩展<asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>23.回车转换成Tab (1)<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>(2) //当在有keydown事件的控件上敲回车时，变为tabpublic void Tab(System.Web .UI.WebControls .WebControl webcontrol) { webcontrol.Attributes .Add ("onkeydown", "if(event.keyCode==13) event.keyCode=9"); } 24.DataGrid超级连接列DataNavigateUrlField="字段名" DataNavigateUrlFormatString="http://xx/inc/delete.aspx?ID={0}"25.DataGrid行随鼠标变色private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e){ if (e.Item.ItemType!=ListItemType.Header) { e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=/""+e.Item.Style["BACKGROUND-COLOR"]+"/""); e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=/""+ "#EFF3F7"+"/""); }}26.模板列<ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID"><ITEMTEMPLATE><ASP LABEL text='<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>' runat="server" width="80%" id="lblColumn" /></ITEMTEMPLATE></ASP:TEMPLATECOLUMN><ASP:TEMPLATECOLUMN headertext="选中"><HEADERSTYLE wrap="False" horiz></HEADERSTYLE><ITEMTEMPLATE><ASP:CHECKBOX id="chkExport" runat="server" /></ITEMTEMPLATE><EDITITEMTEMPLATE><ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" /></EDITITEMTEMPLATE></ASP:TEMPLATECOLUMN>后台代码protected void CheckAll_CheckedChanged(object sender, System.EventArgs e){ //改变列的选定，实现全选或全不选。 CheckBox chkExport ; if( CheckAll.Checked) { foreach(DataGridItem oDataGridItem in MyDataGrid.Items) { chkExport = (CheckBox)oDataGridItem.FindControl("chkExport"); chkExport.Checked = true; } } else { foreach(DataGridItem oDataGridItem in MyDataGrid.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}")%>int i=123456;string s=i.ToString("###,###.00");28.日期格式化 【aspx页面内：<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%> 显示为： 2004-8-11 19:44:28 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], [2004-02-29 10:29:39 pm], [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[/-///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.以下正确的输入格式：[0001-12-31], [9999 09 30], [2002/03/03] ^/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]))$ 【大小写转换】HttpUtility.HtmlEncode(string);HttpUtility.HtmlDecode(string)29.如何设定全局变量 Global.asax中 Application_Start()事件中 添加Application[属性名] ＝ xxx; 就是你的全局变量30.怎样作到HyperLinkColumn生成的连接后，点击连接，打开新窗口？ HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank") 【ASPNETMENU】点击菜单项弹出新窗口 在你的menuData.xml文件的菜单项中加入URLTarget="_blank"，如：<?xml version="1.0" encoding="GB2312"?><MenuData ImagesBaseURL="images/"> <MenuGroup><MenuItem Label="内参信息" URL="Infomation.aspx" ><MenuGroup ID="BBC"><MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/><MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />最好将你的aspnetmenu升级到1.2版31.读取DataGrid控件TextBox值foreach(DataGrid dgi in yourDataGrid.Items){ TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId"); tb.Text....}33. 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?<asp:TemplateColumn HeaderText="数量"> <ItemTemplate><asp:TextBox id="ShuLiang" runat='server' Text='<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>' /><asp:RegularExpressionValidator id="revS" runat="server" C ErrorMessage="must be integer" Validati /></ItemTemplate></asp:TemplateColumn><asp:TemplateColumn HeaderText="单价"> <ItemTemplate><asp:TextBox id="DanJian" runat='server' Text='<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>' /><asp:RegularExpressionValidator id="revS2" runat="server" C ErrorMessage="must be numeric" Validati /></ItemTemplate></asp:TemplateColumn><asp:TemplateColumn HeaderText="金额"> <ItemTemplate><asp:TextBox id="JinE" runat='server' Text='<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>' /></ItemTemplate></asp:TemplateColumn><script language="javascript">function DoCal(){ var e = event.srcElement; var row = e.parentNode.parentNode; var txts = row.all.tags("INPUT"); if (!txts.length || txts.length < 3) return; var q = txts[txts.length-3].value; var p = txts[txts.length-2].value; if (isNaN(q) || isNaN(p)) return; q = parseInt(q); p = parseFloat(p); txts[txts.length-1].value = (q * p).toFixed(2);}</script>34.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。page_load page.smartNavigation=true
