public virtual void AddSubstance(ISubstance substance, int sortOrder, IUnitValue quanity)
{
if (ContainsSubstance(substance))
{
return;
}
_substances.Add(ProductSubstance.Create(sortOrder, this, (Substance)substance, (UnitValue)quanity));
}
/// <summary> 获取显示值 </summary>
public string GetView(double value)
{
IUnitValue uv = Activator.CreateInstance(this.UnitType) as IUnitValue;
if (uv == null)
{
return(value.ToString());
}
return(uv.GetView(value));
}
/// <summary> 根据当前单位返回值 </summary>
bool TryGetValue(string value, out double d, out string message)
{
message = string.Empty;
d = double.NaN;
if (string.IsNullOrEmpty(value))
{
message = "参数不能为空";
return(false);
}
IUnitValue uv = Activator.CreateInstance(this.UnitType) as IUnitValue;
if (uv == null)
{
if (!double.TryParse(value?.ToString(), out d))
{
message = "不是double的有效类型";
return(false);
}
else
{
return(true);
}
}
bool result = uv.TryParse(value, out d, out message);
if (!result)
{
if (string.IsNullOrEmpty(message))
{
message = "转换限制类型错误" + this.UnitType;
}
return(false);
}
return(true);
}
