CollectionsExFindFirstKeyByValueTKey, TValue 方法

public static TKey FindFirstKeyByValue<TKey, TValue>(
	this IDictionary<TKey, TValue> dic,
	TValue value
)
where TKey : class
where TValue : Object, IEquatable<TValue>

<ExtensionAttribute>
Public Shared Function FindFirstKeyByValue(Of TKey As Class, TValue As {Object, IEquatable(Of TValue)}) ( 
	dic As IDictionary(Of TKey, TValue),
	value As TValue
) As TKey

[<ExtensionAttribute>]
static member FindFirstKeyByValue : 
        dic : IDictionary<'TKey, 'TValue> * 
        value : 'TValue -> 'TKey  when 'TKey : not struct when 'TValue : Object and IEquatable<'TValue>