格式化十进制JsonResult ASP MVC 5

时间:2018-11-28 13:19:56

标签: c# json asp.net-mvc asp.net-mvc-5 datatables

我正在使用ASP MVC 5和DataTables插件,但是在格式化小数点时遇到一些问题。

我需要将数字格式设置为以点作为千位分隔符,以逗号作为十进制分隔符。

我正在尝试使用DisplayFormat来实现,但是由于我以Json的身份返回数据,因此它只是不适用

这是我的问题的一个小例子

public class MyClass
{
   [DisplayFormat(DataFormatString = "{0:0.##}")]
   decimal MyDecimal {get;set;}
}

在控制器中

public JsonResult LoadDataTables()
{    
    using(var db = new ExampleContext())
    {
        var data = db.MyRepository.Select(x => new MyClass
        {
            MyDecimal = x.mydecimal
        }).ToList();
        //i'm ignoring a lot of processing to create a short snippet
        return Json(new { draw = draw, recordsFiltered = recordsTotal, recordsTotal = recordsTotal, data = data });
    }
}

然后,在前端,json带有逗号(千位)和点(十进制分隔符)

我该如何处理?采用某种方法CultureInfo还是手动设置转换?

编辑:在我看来,这就是我加载数据的方式

var table = $('#myTabla').DataTable({
                    processing: true,
                    serverSide: true,
                    filter: true,
                    orderMulti: false,
                    paging: true,
                    pageLength: 10,
                    ajax: {
                        "url": '@Url.Action("LoadDataTables")',
                        "type": "POST",
                        "datatype": "json",
                    });

谢谢!

3 个答案:

答案 0 :(得分:1)

您需要设置自定义文化:

System.Globalization.CultureInfo customCulture = (System.Globalization.CultureInfo)
System.Threading.Thread.CurrentThread.CurrentCulture.Clone();
customCulture.NumberFormat.NumberDecimalSeparator = ",";

System.Threading.Thread.CurrentThread.CurrentCulture = customCulture;

谢谢。

答案 1 :(得分:1)

1-您可以按以下另一种方式进行操作:

public class MyClass
{
   MyNumber MyDecimal {get;set;}
}

struct MyNumber
{
    decimal Value {get;set;}

    ToString()
    {
        // Adapt number Format and CultureInfo as wanted
        return value.ToString("0:0.##", MyCultureInfo);
    }
}

用途:

十进制d = MyNumber.Value

string s =(string)MyNumber;或MyNumber.ToString();

2-或在客户端:

// Invert . and ,
// 1.22222.5689,56
// to 1,22222,5689.56
String.prototype.formatNumber = function(number)
{
    return number.replace(',', ';').replace('.', ',').replace(';', '.');
}

3-在C#中操作JSon的最佳选择是:https://www.newtonsoft.com/json

您可以序列化和反序列化json并创建自定义转换。

答案 2 :(得分:1)

您可以为此使用数字助手。您可以访问此链接以引用更多信息:https://datatables.net/manual/data/renderers#Number-helper

这里是一个样本。希望对您有帮助,我的朋友:))

//控制器中的代码

public class Test
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public decimal Currency  { get; set; }
    }

private List<Test> Data()
        {
            var data = new List<Test>
            {
                new Test{ Id = 1, Name = "A1", Currency = 1000000.00M},
                new Test{ Id = 2, Name = "A2", Currency= 50000000.12M},
                new Test{ Id = 3, Name = "A3", Currency = 3000000.45M},
                new Test{ Id = 4, Name = "A4", Currency = 20000}
            };
            return data;
        }

        [HttpPost]
        public JsonResult LoadDataTables()
        {
            var data = Data();
            var recordsTotal = Data().Count;
            var recordsFiltered = Data().Count();
            string draw = Request.Form.GetValues("draw")[0];
            return Json(new { draw = Convert.ToInt32(draw), recordsTotal = recordsTotal, recordsFiltered = recordsFiltered, data = data }, JsonRequestBehavior.AllowGet);
        }

//查看

<table id="myTable" >
    <thead>
        <tr>
            <td >Id</td>
            <td >Name</td>
            <td>Currency</td>
        </tr>
    </thead>
    <tbody>
    </tbody>
</table>

    var table = $('#myTable').DataTable({
                    processing: true,
                    serverSide: true,
                    filter: true,
                    orderMulti: false,
                    paging: true,
                    pageLength: 10,
                    ajax: {
                            "url": '@Url.Action("LoadDataTables", "Home")',
                            "type": "POST",
                            "datatype": "json",
                    },
                    "columns": [
                        {
                            "data": "Id"
                        }, {
                            "data": "Name"
                        }, {
                            "data": "Currency",
                            render: $.fn.dataTable.render.number('.', ',', 2, '')
                        }
                    ]
                });