如何在handsontable中动态添加复选框列

Question

我正在使用handsontable 和一个jsfiddle http://jsfiddle.net/kc11/cb920ear/1/。我正在尝试在数据之前动态添加一个复选框列。其中有以下js结构，我假设是一个多维数组：

columns: [
  {
    data: "car"
    //1nd column is simple text, no special options here
  },
  {
    data: "year",
    type: 'numeric'
  },
  {
    data: "available",
    type: "checkbox"
  }
]

如果我理解正确以获取第一列中的复选框，我需要使这个对象数组看起来像：

columns: [
  {
   "checkboxes"
   type: "checkbox" 
  },
  {
   data: "car"
    //1nd column is simple text, no special options here
  },
....

但显然列数组必须动态创建，第一列复选框和所有剩余文本（这是默认值）我怎样才能修改数组看起来像这样？

Answer 1

可以这样尝试：

  $(document).ready(function () {
        
        function getCarData() {
            return [
                {car: "Mercedes A 160", year: 2006, available: true, comesInBlack: 'yes'},
                {car: "Citroen C4 Coupe", year: 2008, available: false, comesInBlack: 'yes'},
                {car: "Audi A4 Avant", year: 2011, available: true, comesInBlack: 'no'},
                {car: "Opel Astra", year: 2004, available: false, comesInBlack: 'yes'},
                {car: "BMW 320i Coupe", year: 2011, available: false, comesInBlack: 'no'}
            ];
        }
        
        var keys = $.map(getCarData()[0], function(element,key) { return key; }); 
        keys.unshift("check");
        
        console.log(keys);
   	 var column=[
       	      {
         	        data: "car"
         	        //1nd column is simple text, no special options here
         	      },
         	      {
         	        data: "year",
         	        type: 'numeric'
         	      },
         	      {
         	        data: "available",
         	        type: "checkbox"
         	      }
         	    ];
   	 column.unshift({
   		   data:"available",
   		   type: "checkbox" 
   		  });
        var example1 = document.getElementById('example1');
        var hot1 = new Handsontable(example1,{
            data: getCarData(),
            startRows: 7,
            startCols: 4,
            colHeaders: keys,
            
            columnSorting: true,
            columns: column
        });
        
        function bindDumpButton() {
            
            Handsontable.Dom.addEvent(document.body, 'click', function (e) {
                
                var element = e.target || e.srcElement;
                
                if (element.nodeName == "BUTTON" && element.name == 'dump') {
                    var name = element.getAttribute('data-dump');
                    var instance = element.getAttribute('data-instance');
                    var hot = window[instance];
                    console.log('data of ' + name, hot.getData());
                }
            });
        }
        bindDumpButton();
        
    });

body {background: white; margin: 20px;}
h2 {margin: 20px 0;}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>


<script src="http://handsontable.com/dist/handsontable.full.js"></script>
<script src="http://handsontable.com/lib/numeral.de-de.js"></script>
<link rel="stylesheet" media="screen" href="http://handsontable.com/dist/handsontable.full.css">
<link rel="stylesheet" media="screen" href="http://handsontable.com/demo/css/samples.css?20140331">
<link rel="stylesheet" media="screen" href="http://handsontable.com/demo/css/samples.css?20140331">
<link rel="stylesheet" media="screen" href="http://handsontable.com/demo/css/samples.css?20140331">
<link rel="stylesheet" media="screen" href="http://handsontable.com/demo/css/samples.css?20140331">

<h2>Checkbox cell type</h2>

<p>If you have cells that contains only 2 possible values, you can use <code>checkbox</code> type.
  Data in such cells will be rendered as checkbox
  and can be easily changed by checking/unchecking the checkbox. </p>

<p>Checking and unchecking can be performed using mouse or by pressing <kbd>SPACE</kbd>.
  You can change the state of multiple cells at once.
  Simply select cells you want to change and press <kbd>SPACE</kbd></p>

<div class="handsontable" id="example1"></div>

<p>
  <button name="dump" data-dump="#example1" data-instance="hot1" title="Prints current data source to Firebug/Chrome Dev Tools">
    Dump
    data to console
  </button>
</p>

另请参阅：How to create dynamic columns for Handsontable?

Answer 2

要在第一列中获取复选框，请执行以下操作：

columns: [
    {
        data: "available",  // mention appropriate data here
        type: "checkbox"    // checkboxes in the 1st column!
    },
    {
        data: "car"         // 2nd column
    },
    {
        data: "year",       // 3rd column
        type: 'numeric'
    },
    {
        data: "available",  // 4rd column
        type: "checkbox"
    }
]

jsFiddle 演示： http://jsfiddle.net/cb920ear/2/

并且，仅供参考：这是一个对象数组和Handsontable 的部分配置。