Dictionary<int, string> dic = new Dictionary<int, string>();
dic[1] = "a";
dic[2] = "b";
int key = dic.GetKeyByValue("a");
public static class gfoidlDictionaryExtensions
{
public static TKey GetKeyByValue<TKey, TValue>(
this Dictionary<TKey, TValue> dic,
TValue value)
{
var query = from kvp in dic
where object.Equals(kvp.Value, value)
select kvp.Key;
return query.FirstOrDefault();
}
}
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dic.ToList().FirstOrDefault(x => x.Value == "bla");
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