Question

我正在尝试将〜/ folder / pages中的选定项目显示到asp.net 2015中的根页面名称产品，我已经在页面中显示了所有项目，但是当我调用模型类时出现错误“{ {1}}“并且很少有错误，例如

错误CS1503参数1：`无法转换 'SAIT_Electronics.Pages.Product'到'SAIT_Electronics.Product

cannot implicitly convert type

here is attached error picture of asp.net

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using SAIT_Electronics.Models;
using System.Collections;
using System.Management;
using SAIT_Electronics.Pages;
namespace SAIT_Electronics.Pages
{
 public partial class Product : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            Fillpage();
        }

        private void Fillpage()
        {
            //get selected products data
            if(!String.IsNullOrWhiteSpace(Request.QueryString["id"]))
            {
                int id = Convert.ToInt32(Request.QueryString["id"]);
                productmodel model = new productmodel();
                Product product = model.GetProduct(id);
                //fill page with data
                lblPrice.Text = "Price per unit : <br/>$" + product.Price;
                                lblTitle.Text = product.Name;
                lblDescription.Text = product.Description;
                lblItemNr.Text = id.ToString();
                imgProduct.ImageUrl = "~/Images/Products/" + product.Image;
                //fill amount dropdownlist with number 1 -10
                int[] amount = Enumerable.Range(1, 10).ToArray();
                ddlAmount.DataSource = amount;
                ddlAmount.AppendDataBoundItems = true;
                ddlAmount.DataBind();
            }
        }
    }
}

Answer 1

此行中的Product类型

Product product = model.GetProduct(id);

是你现在所在的Product课程，因此是SAIT_Electronics.Pages.Product。试试这个：

SAIT_Electronics.Product product = model.GetProduct(id);

或者只是这个：

var product = model.GetProduct(id);

您应该在ManageProducts.aspx.cs文件中执行相同的操作。无论您在何处定义Product类型的变量，请将Product替换为SAIT_Electronics.Product。例如，第39行变为：

SAIT_Electronics.Product product = CreateProduct();

第61,106和108行也是如此。

无法从T1转换为T2

1 个答案: