1. 打开新的窗口并传送参数： 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' && event.srcElement.type!='reset' && event.srcElement.type!=''&& event.srcElement.type!='textarea'); event.keyCode=9; </script> οnkeydοwn="if(event.keyCode==13) event.keyCode=9" http://dotnet.aspx.cc/exam/enter2tab.aspx 14.DataGrid超级连接列 DataNavigateUrlField="字段名" DataNavigateUrlFormatString="http://xx/inc/delete.aspx?ID={0}" 15.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=/""+ "#EFF 3F 7"+"/""); } } 16.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" horizontalalign="Center"></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; } } } 17.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"); 18.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) 19.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 20.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 21.委托讨论 http://community.csdn.net/Expert/topic/2651/2651579.xml?temp=.7183191 http://dev.csdn.net/develop/article/22/22951.shtm 22.读取DataGrid控件TextBox值 foreach(DataGrid dgi in yourDataGrid.Items) { TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId"); tb.Text.... } 23.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? 〖思归〗 <asp:TemplateColumn HeaderText="数量"> <ItemTemplate> <asp:TextBox id="ShuLiang" runat='server' Text='<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>' οnkeyup="javascript:DoCal()" /> <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^/d+$" /> </ItemTemplate> </asp:TemplateColumn> <asp:TemplateColumn HeaderText="单价"> <ItemTemplate> <asp:TextBox id="DanJian" runat='server' Text='<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>' οnkeyup="javascript:DoCal()" /> <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^/d+(/./d*)?$" /> </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> 24.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 25.在Datagrid中修改数据，当点击编辑键时，数据出现在文本框中，怎么控制文本框的大小 ? private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e) { for(int i=0;i<e.Item.Cells.Count-1;i++) if(e.Item.ItemType==ListItemType.EditType) { e.Item.Cells[i].Attributes.Add("Width", "80px") } } 26.对话框 private static string ScriptBegin = "<script language=/"JavaScript/">"; private static string ScriptEnd = "</script>"; public static void ConfirmMessageBox(string PageTarget,string Content) { string ConfirmContent="var retValue=window.confirm('"+Content+"');"+"if(retValue){window.location='"+PageTarget+"';}"; ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd; Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler; ParameterPage.RegisterStartupScript("confirm",ConfirmContent); //Response.Write(strScript); }
