不能隐式转换类型'string'& # 39; int # 39;数组中

public class Product
{
    public string name { get; set; }
    public string description { get; set; }
    public decimal price { get; set; }
    public int   [] categories { get; set; }
}
var parentstl = from parentstyle in DBB.vParentStyles
                select new
                {
                    parentstyle.name,
                    parentstyle.description,
                    parentstyle.price,
                    Categories = parentstyle.categories.ToArray(),
                };
foreach (var pstl in parentstl)
{
    request.AddBody(new Product
    {
        name = pstl.name,
        description = pstl.description,
        price = (Decimal)pstl.price,
        **categories = new int[]{pstl.categories}.ToArray()**
    });
}

我该如何解决这个问题?谢谢。