将选中的列表框选中的项添加到JSON

本文关键字：JSON 添加 列表 | 更新日期: 2023-09-27 18:27:18

好吧，我这里有一个选中的列表框，我想把选中的项添加到我的列表中，然后用JSON序列化它们
示例：

public class Customer
{
     public string Name { get; set; }
     public string Products { get; set; }
}
List<Customer> Customers = new List<Customer>();
private void btnRegister_Click(object sender, EventArgs e)
{
    if(boxName.Text.Length != 0 && productsList.CheckedItems.Count != 0)
    {
        Customer customer = new Customer();
        customer.Name = boxName.Text;
        //This is what I tried
        foreach(var item in productsList.CheckedItems)
        {
            customer.Products = item.ToString();
        }
        Customers.Add(customer);
        customersList.Items.Add(customer.Name);
    }
}
//In one event I have this to save to the JSON file
File.WriteAllText(file, JsonConvert.SerializeObject(Customers));

但我在JSON文件和客户列表中的输出只是一个选定产品的名称。如何获得所有并做这样的事情：

[{"Name":"Mathew", "Products":"car", "boat", "bike"}] //These products will be inserted according to the checked products in the checked listbox

如何为产品添加这些值？我也试着这样定价：

"Products": "car": "Price":"20000", "boat": "Price":"30000", "bike":"Price":"2000"

有人能帮我一把吗？如果我能学会这一点，我将不胜感激！提前感谢大家！

将选中的列表框选中的项添加到JSON

我认为您不会得到这样的Json，因为它的格式似乎不正确。看看http://amundsen.com/media-types/collection/examples/

要想得到你想要的东西，你需要做一些类似于下面的事情

public class ProductDetails
{
     public string ProdName { get; set; }
     public string Price { get; set; }
}    
public class Customer
{
     public string Name { get; set; }
     public List<ProductDetails> Products { get; set; }
}
List<Customer> Customers = new List<Customer>();
private void btnRegister_Click(object sender, EventArgs e)
{
    if(boxName.Text.Length != 0 && productsList.CheckedItems.Count != 0)
    {
        Customer customer = new Customer();
        customer.Name = boxName.Text;
        customer.Products = new List<ProductDetails>();
        //This is what I tried
        foreach(var item in productsList.CheckedItems)
        {
            ProductDetails details = new ProductDetails()
            details.ProdName = item,ToString();
            details.Price=  5;
            customer.Products.Add(details);
        }
        Customers.Add(customer);
        customersList.Items.Add(customer.Name);
    }
}

这应该会给你一个类似以下的输出

[{"Name":"Mathew", "Products": [{ "ProdName" : "car", "Price": "1000"}, {"ProdName":"boat", "Price": "10"}, {"ProdName": "bike", "Price" : "5"}]}]

*注意，我只是在脑子里打出来的，可能会有一些错误，但希望它能给你指明正确的方向。

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