我用图片展示出了页面的效果
我希望实现的功能是 判断页面上的 CheckBox控件上的属性 checked
Button导出数据事件 时先判断至少1个CheckBox是选中状态 并提示
javascript或者jquery 或者 后台代码实现也行！
前台代码如下
- C# code
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="SWDataMonitorExport.aspx.cs" Inherits="CTWebPlatform.DataMonitoring.SWDataMonitorExport" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title>导出数据</title> <link href="../Styles/Site.css" rel="stylesheet" type="text/css" /><script language="javascript" type="text/javascript"> function unselectall() { if (document.myform.chkAll.checked) { document.myform.chkAll.checked = document.myform.chkAll.checked & 0; } } function CheckAll(form) { for (var i = 0; i < form.elements.length; i++) { var e = form.elements[i]; if (e.Name != 'chkAll' && e.disabled == false) { e.checked = form.chkAll.checked; } } } </script></head><body> <form id="form1" runat="server"> <div style="background-color:White;"> <br /> <table width="100%" class="style-table"><tr> <td class="style1"> <div class="style-saearch"> <div class="search2to"> <table border="0" cellpadding="0" cellspacing="0" class="Table_Search"> <tr> <td> <span class="MarginLeft10"> </span> <asp:RadioButton ID="RadioExcel" runat="server" Text="Microsoft Excel 工作表" GroupName="Export" Checked="True" /> </td> <td > <asp:RadioButton ID="RadioWord" runat="server" Text="Microsoft Word 文档" GroupName="Export" /> </td> <td> <asp:RadioButton ID="RadioTXT" runat="server" Text="超文本网页 Html" GroupName="Export" /> </td> <td>在线浏览 </td> <td> </td> <td > <asp:Button ID="ButtonHTTP" runat="server" CssClass="Button02" Height="24px" Text="将数据导出" Width="84px" onclick="ButtonHTTP_Click" /> </td> </tr> </table> </div> <div class="MarginLeft10"> <span class="MarginLeft5">请选择需要导出的"列"名称</span></div> </div> <div class="marginab BorderGray"> <table style="width:100%; height: 300px;"> <tr> <td> <span class="MarginLeft20"></span><input name='chkAll' type='checkbox' id='chkAll' onclick='CheckAll(this.form)' value='checkbox'/>全选√ </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td> <span class="MarginLeft20"></span> <asp:CheckBox ID="CheckScrewPumpWellName" runat="server" Text="螺杆泵名称" /> </td> <td> <span class="MarginLeft20"></span> <asp:CheckBox ID="CheckDTUID" runat="server" Text="测电仪编号" /> </td> <td> <span class="MarginLeft20"></span> <asp:CheckBox ID="CheckOrgName" runat="server" Text="所属井场" /> </td> <td> <span class="MarginLeft20"></span> <asp:CheckBox ID="CheckSampleTime" runat="server" Text="采集时间" /> </td> <td> <span class="MarginLeft20"></span> <asp:CheckBox ID="CheckColumn1" runat="server" Text="启停机" /> </td> </tr> <tr> <td> <span class="MarginLeft20"></span> <asp:CheckBox ID="CheckdPF" runat="server" Text="功率因数" /> </td> <td> <span class="MarginLeft20"></span> <asp:CheckBox ID="CheckdFreq" runat="server" Text="频率(hz)" /> </td> <td> <span class="MarginLeft20"></span> <asp:CheckBox ID="CheckdSpeed" runat="server" Text="转速(/Min)" /> </td> <td><%--Column1--%> <span class="MarginLeft20"></span> <asp:CheckBox ID="CheckColumn2" runat="server" Text="是否停机" /> </td> <td> </td> </tr> </tr> </table> </div> </td> </tr> </table> <br /> </div> </form></body></html>