c# - 如何摆脱 'property could not be set to a double value, you must set this property to a non-null value of type decimal'

Question

我正在尝试让函数导入正常工作。 EF 调用我的存储过程，但结果有一个我不理解的内部异常:

var result = context.SomeFunctionImport();

我得到:

The 'Cnt' property on 'SomeClass' could not be set to a 'Double' value. You must set this property to a non-null value of type 'Decimal'.

这是 SomeClass 的 Cnt 属性:

    [DataMember]
    public Nullable<decimal> Cnt
    {
        get { return _cnt; }
        set
        {
            if (_cnt != value)
            {
                OnComplexPropertyChanging();
                _cnt = value;
                OnPropertyChanged("Cnt");
            }
        }
    }
    private Nullable<decimal> _cnt;

Answer 1

需要这样定义:public decimal Cnt