Question

寻找LINQ实现来处理以下用例。

Pesudo对象的定义：

class Product{
int Id;
string Name;
IList<ProductAttribute> ProductAttributes;
}

class ProductAttribute{
int Id;
string Name;
string Value;
}

我收集的产品类似于：

[
{"Name":"Red Large Shirt", "ProductAttributes": [{"Name": "Color", Value:"Red"},{"Name":"Size", "Value":"Large"}, {"Name":"Type", "Value":"Shirt"}]},
{"Name":"Red Small Shirt", "ProductAttributes": [{"Name": "Color", Value:"Red"},{"Name":"Size", "Value":"Small"}, {"Name":"Type", "Value":"Shirt"}]},
{"Name":"Red Large Pant", "ProductAttributes": [{"Name": "Color", Value:"Red"},{"Name":"Size", "Value":"Large"}, {"Name":"Type", "Value":"Pant"}]},
{"Name":"Blue Large Shirt", "ProductAttributes": [{"Name": "Color", Value:"Blue"},{"Name":"Size", "Value":"Large"}, {"Name:"Type", "Value":"Shirt"}]},
]

我需要一个LINQ语句来返回与某些属性匹配的产品列表。例如。返回ProductAttribute产品列表（＆＃34;名称＆＃34; =＆＃34;尺寸＆＃34;＆amp;＆amp;＆＃34;价值＆＃34; =＆＃34;大＆＃34;）＆amp;＆amp; （＆＃34;名称＆＃34; =＆＃34;颜色＆＃34;＆amp;＆amp;＆＃34;价值＆＃34; =＆＃34;红色＆＃34;）

由于

Answer 1

您需要使用.Any()或.Contains()扩展名。例如，

products.Where(p=>p.ProductAttributes.Any(a=>a...condition here for attributes))

LINQ查询匹配内部集合中的值

1 个答案: