Tho*_*eld 2 c# linq lambda dictionary
我有一个字典
Dictionary<String, List<String>> MyDict = new Dictionary<string, List<string>>
{
{"One",new List<String>{"A","B","C"}},
{"Two",new List<String>{"A","C","D"}}
};
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我需要List<String>从这本字典中获取一个,列表应包含上述字典值的不同项.
因此生成的List将包含{"A","B","C","D"}.
现在我正在使用for循环和Union操作.喜欢
List<String> MyList = new List<string>();
for (int i = 0; i < MyDict.Count; i++)
{
MyList = MyList.Union(MyDict[MyDict.Keys.ToList()[i]]).Distinct().ToList();
}
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任何人都可以建议我在LINQ或LAMBDA Expression中执行此操作.
var items=MyDict.Values.SelectMany(x=>x).Distinct().ToList();
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或者替代方案:
var items = (from pair in MyDict
from s in pair.Value
select s).Distinct().ToList();
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