Question

从数据库中获取数据后，如何在视图中显示三个模型中的数据？

我有错误：

invalidOperationException：模型项传递到 ViewDataDictionary是类型为System.Collections.Generic.List1 [SalesTransactionApplication.Models.BLL.SalesTransactionInfo]，但是此ViewDataDictionary实例需要一个类型为 System.Collections.Generic.IEnumerable1 [SalesTransactionApplication.Models.BLL.Info.ViewModel]。

这是我的控制者：

public IActionResult Index()
{
    SalesTransactionDataProvider objSalesTransactionProvider = new SalesTransactionDataProvider();
    ViewData.Model=objSalesTransactionProvider.SalesTransactionGetList();
    return View();
}

这是我的模特

public class CustomerInfo
{
    public int CustomerId  { get; set; }
    public string CustomerName  { get; set; }
}


public class ProductInfo
{
    public int ProductId  { get; set; }
    [Required]
    [Display(Name ="Product Name")]
    public string ProductName  { get; set; }
    [Required]
    [Range(0, float.MaxValue, ErrorMessage = "Please enter Numberic Value")]
    [Display(Name = "Product Rate")]
    public decimal ProductRate  { get; set; }
} 

public class SalesTransactionInfo
{
    public int SalesTransactionId  { get; set; }
    [Required]
    [Display(Name ="Customer ID")]
    public int CustomerId  { get; set; }
    [Required]
    [Display(Name = "Product ID")]
    public int ProductId  { get; set; }
    [Required]
    public float Quantity  { get; set; }
    [Required]
    public decimal Rate  { get; set; }
    [Required]
    public decimal Total  { get; set; }

    public int InvoiceId  { get; set; }
}

Asp.net核心多个视图模型

0 个答案: