Extjs浮点值在C＃控制器中作为null传递

Question

I have a float value in extjs model. For some reason any value I enter and pass to c# controller, its value is always null. I checked the json data being pass and I can see the passed value.

This is my extjs model

fields: [
    { name: 'Id', type: 'int' },
    { name: 'FloatValue', type: 'float' },
    { name: 'RecId', type: 'int' },
    { name: 'Valid', type: 'bool' }
 ]

C#

public class EmployeeRecord
{
    public int Id { get; set; } 
    public double? FloatValue { get; set; }
    public int RecId { get; set; }
    public bool Valid { get; set; }
}

JsonObject passed to controller

{ Id: 0, FloatValue: 0.1, RecId: 12, Valid: true }

On C# debug the value of 'FloatValue' is always null.

Is there something here that I am missing.

UPDATE -

var employee = new Object();
employee.Id = 0;
employee.FloatValue = 0.1;
employee.RecId = 12;
employee.Valid = true;

Ext.Ajax.request({
        method: 'POST',
        scope: this,
        url: 'EmployeeController/UpdateRecord',
        headers: { 'Content-Type': 'application/json' },
        dataType: 'json',
        jsonData: { employeeRec: employee },
        success: function (Response) {},
        failure: function () {}
});

C#

public static EmployeeRecord UpdateRecord(IList<EmployeeRecord> employeeRec)
    {
        //Here employeeRec.FloatValue is null but other property has their values.
    }

Answer 1

Such behavior can appear brom an error in the getter or setter. You can give the correct valur to setter, but if it sets it badly, or getter afterwards gets something else than was written, you can easily see that null.

The most probably getter or setter simply won't do its work.