NameValueCollection.AllKeys Property
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Gets all the keys in the NameValueCollection.
public:
virtual property cli::array <System::String ^> ^ AllKeys { cli::array <System::String ^> ^ get(); };public virtual string[] AllKeys { get; }public virtual string?[] AllKeys { get; }member this.AllKeys : string[]Public Overridable ReadOnly Property AllKeys As String()A String array that contains all the keys of the NameValueCollection.
If the collection is empty, this method returns an empty String array, not null.
The arrays returned by AllKeys are cached for better performance and are automatically refreshed when the collection changes. A derived class can invalidate the cached version by calling InvalidateCachedArrays, thereby forcing the arrays to be recreated.
This method is an O(n) operation, where n is Count.
| Product | Versions |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.0, 2.1 |
| UWP | 10.0 |
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