javascript - 动态设置jquery数据表列的数据源

Question

有没有办法动态设置数据表列的数据源？就像我通过硬编码每个属性名称来设置columns.data，如下所示:

$.ajax({
    data: JSON.stringify(data),
    url: urlGetProviderQualificationTimeData,
    type: 'POST',
    contentType: "application/json; charset=utf-8",
    success: function (obj) {
        if (obj.success) {
            $('#tblProds').dataTable({
            data: obj.data.ProdsDetails,
            columns: [
                { "data": "PName" },
                { "data": "PTime" }  //hardcoded mapping of properties     
            ]
            });
        }
    },
});

ProdsDetails 示例数组:

Array[2]
0:Object
    PName:"ATT",
    PTime:"6.48"   
1:Object
    PName:"CENTURYLINK",
    PTime:"3.67"

有没有办法摆脱这种属性和列的硬编码映射？

Answer 1

这是你的数组:

var array=[
             {PName:"ATT",PTime:"6.48" },
             {PName:"CENTURYLINK",PTime:"3.67"}
          ];

现在，您应该获取所有键并构建最终数组:

var obj=array[0];
var keys=[];
for(var k in obj) 
    keys.push({"data":k});

现在，keys 数组如下所示:

[
   {"data":"PName"},
   {"data":"PTime"}
]

最后一步是将数组分配给 DataTable 的 columns 属性:

columns:keys

现在应该是这样的:

columns:[
          { "data": "PName" },
          { "data": "PTime" }    
]

希望这有帮助!