在C# MVC框架中，進行數據匯總通常涉及到以下幾個方面：
public class Product
{
public int Id { get; set; }
public string Name { get; set; }
public decimal Price { get; set; }
public int Quantity { get; set; }
}
public class ProductRepository : IProductRepository
{
private readonly ApplicationDbContext _context;
public ProductRepository(ApplicationDbContext context)
{
_context = context;
}
public IEnumerable<Product> GetAllProducts()
{
return _context.Products.ToList();
}
}
Summary類來存儲匯總信息。public class Summary
{
public decimal TotalSales { get; set; }
public int TotalQuantity { get; set; }
}
public class SummaryCalculator
{
public Summary CalculateSummary(IEnumerable<Product> products)
{
var summary = new Summary
{
TotalSales = products.Sum(p => p.Price * p.Quantity),
TotalQuantity = products.Sum(p => p.Quantity)
};
return summary;
}
}
SummaryCalculator類的方法來計算匯總數據，并將結果傳遞給視圖。public class HomeController : Controller
{
private readonly IProductRepository _productRepository;
private readonly SummaryCalculator _summaryCalculator;
public HomeController(IProductRepository productRepository, SummaryCalculator summaryCalculator)
{
_productRepository = productRepository;
_summaryCalculator = summaryCalculator;
}
public ActionResult Index()
{
var products = _productRepository.GetAllProducts();
var summary = _summaryCalculator.CalculateSummary(products);
return View(summary);
}
}
@model MvcApplication.Models.Summary
<!DOCTYPE html>
<html>
<head>
<title>數據匯總</title>
</head>
<body>
<h1>數據匯總</h1>
<table>
<tr>
<th>總銷售額</th>
<td>@Model.TotalSales</td>
</tr>
<tr>
<th>總數量</th>
<td>@Model.TotalQuantity</td>
</tr>
</table>
</body>
</html>
通過以上步驟，你可以在C# MVC框架中進行數據匯總。當然，這只是一個簡單的示例，實際應用中可能需要根據具體需求進行調整。
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