LINQ查询返回Dictionary <string,string>

Question

我有一个MyClass的集合,我想用LINQ来查询获取不同的值,然后得到一个Dictionary <string,string>作为结果,但我无法弄清楚我怎么能比我更简单我在下面做.一些更干净的代码可以用来获取Dictionary <string,string>作为我的结果？

var desiredResults = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);

var queryResults = (from MyClass mc in myClassCollection
                    orderby bp.SomePropToSortOn
                    select new KeyValuePair<string, string>(mc.KeyProp, mc.ValueProp)).Distinct();

foreach (var item in queryResults)
{
    desiredResults.Add(item.Key.ToString(), item.Value.ToString());
}

Answer 1

ToDictionary直接使用该方法.

var result = 
  // as Jon Skeet pointed out, OrderBy is useless here, I just leave it 
  // show how to use OrderBy in a LINQ query
  myClassCollection.OrderBy(mc => mc.SomePropToSortOn)
                   .ToDictionary(mc => mc.KeyProp.ToString(), 
                                 mc => mc.ValueProp.ToString(), 
                                 StringComparer.OrdinalIgnoreCase);

Answer 2

查看ToLookup和/或ToDictionary扩展方法.