[英]LINQ: Get all items of a list within a list
我有一個ObservableCollection,它包含另一個ObservableCollection。
ObservableCollection<MyModel> models = new ObservableCollection<MyModel>();
我的模型看起來像這樣:
public class MyModel
{
public ObservableCollection<MyModel2> list2 { get; set; }
public string Property1 { get; set; }
}
public class MyModel2
{
public string Property2 { get; set; }
public string Property3 { get; set; }
}
現在我想找到模型中的所有MyModel2項,其中“Property2”==“test1”和“Property3”==“test2”
我知道如何只搜索一個list2來找到合適的項目,但我想搜索models-collection中的所有“list2”。
var result = from mod
in list2
where mod.Property2 == "test1" && mod.Property3 == "test2"
select mod;
任何幫助將不勝感激。
這聽起來像你想要的東西:
var query = from model in models
from model2 in model.list2
where model2.Property2 == "test1" && model2.Property == "test2"
select model2;
或者以非查詢表達式形式:
var query = models.SelectMany(model => model.list2)
.Where(model2 => model2.Property2 == "test1"
&& model2.Property == "test2");
var result =
models.SelectMany(item => item.list2.Where(model => model.Property2 == "test1" && model.Property3 == "test2"));
Enumerable.SelectMany
和Enumerable.Where
在“內部”列表中:
models.SelectMany(m =>
m.list2.Where(m2 => m2.Property2 == "test1" && m2.Property3 == "test2"));
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.