将Foreach循环转换为linq形式

Question

我有Dictionary<string,List<Member> members，并且我有foreach循环。如何隐式循环到linq表达式中？

members.Foreach(x => x.Where(a=>a.Firstaname ?

 

foreach (var key in games.Keys)
{
  foreach (var val in games[key])
  {
    if (firstName == val.FirstName && lastName == val.LastName && command == val.CommandName)
    {
      val.Position = position;
    }
  }
}

如果它与词典中的数据匹配，则需要设置玩家的位置

Answer 1

var items = games.SelectMany(x => x.Value).Where(val => firstName == val.FirstName && lastName == val.LastName && command == val.CommandName);
foreach(var i in items)
{
    i.Position = position;
}