Asp.net mvc 如何通过大小、数量和颜色一次性获得库存价值

我有四种型号（商品、面料、生产、库存） 我想通过项目ID获得股票价值，如下所示：

<table class="table-responsive">
        <tr>
            <td>Color</td>
            <td>Size</td>
            <td>Quantity</td>
        </tr>
        <tbody class="StockTbody"></tbody>
    </table>

问题是：我想求数量的和

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请帮助

我想您正在这里寻找一个

群组：

public JsonResult StuckDetails (int ID)
{
    var table = (from tb in db.Stocks
                 where ID == tb.Production.ItemID
                 group tb by new 
                 { 
                     tb.Production.fabric.Colors.ColorName, 
                     tb.size.SizeName
                 } into grp
                 select new
                 {
                     color = grp.Key.ColorName,
                     size =  grp.Key.SizeName,
                     Quantity = grp.Sum(g => g.Quantity)
                 });
    
    return Json(table, JsonRequestBehavior.AllowGet);
}

它们
Key.ColorName
属性名称可能会有所不同-我在这里不太确定。使用Intellisense引导您完成它

public class Colors
{
    public int ID { get; set; }
    [Display(Name ="Color")]
    public string ColorName { get; set; }
    public virtual List<Fabric> fabric { get; set; }
    public virtual List<OrderDetail> OrderDetails { get; set; }


}

public class Item
{
    public int ID { get; set; }
    [Display(Name = "Item")]
    public string ItemName { get; set; }
    public int code { get; set; }
    [Display(Name ="Collection")]
    public Nullable<int> CollectionID { get; set; }
    [Display(Name = "Category")]
    public Nullable<int> CategoryID { get; set; }
    public string Image { get; set; }
    public string BarcodeImage { get; set; }
    public string Barcode { get; set; }
    public int NumberOfDraft { get; set; }
    public decimal SectoralSellingPrice { get; set; }
    public decimal wholesalePrice { get; set; }
    public decimal discountPrice { get; set; }
    public decimal wholesalevariegated { get; set; }
    public decimal DesignCost { get; set; }
    public int three { get; set; }
    public virtual List<Production> production { get; set; }
    public virtual Collection collection { get; set; }
    public virtual Categories categories { get; set; }
    public virtual List<OrderDetail> orderDetail { get; set; }
}

public class Stock
{
    
    public int ID { get; set; }
    public int ProductionID { get; set; }
    public int SizeID { get; set; }
    public int Quantity { get; set; }
    
    public string ShelfNumber { get; set; }
    
    public virtual Production Production { get; set; }
    
    public virtual Size size { get; set; }
    public virtual List<StockRemain> stockRemain { get; set; }


}

public JsonResult StuckDetails (int ID)
    {
        var table = (from tb in db.Stocks
                     where ID == tb.Production.ItemID
                     select new
                     {
                         color = tb.Production.fabric.Colors.ColorName,
                         ColorId=tb.Production.fabric.ColorID,
                         size = tb.size.SizeName,
                         sizeID = tb.SizeID,
                         //Quantity = 
                     }).Distinct().ToList();
        
        return Json(table, JsonRequestBehavior.AllowGet);
    }

public JsonResult StuckDetails (int ID)
{
    var table = (from tb in db.Stocks
                 where ID == tb.Production.ItemID
                 group tb by new 
                 { 
                     tb.Production.fabric.Colors.ColorName, 
                     tb.size.SizeName
                 } into grp
                 select new
                 {
                     color = grp.Key.ColorName,
                     size =  grp.Key.SizeName,
                     Quantity = grp.Sum(g => g.Quantity)
                 });
    
    return Json(table, JsonRequestBehavior.AllowGet);
}