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NameValueCollection.AllKeys Property

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Definition

Namespace:
System.Collections.Specialized
Assemblies:
System.dll, System.Collections.Specialized.dll
Assembly:
System.Collections.Specialized.dll
Assembly:
System.dll
Assembly:
netstandard.dll
Source:
NameValueCollection.cs
Source:
NameValueCollection.cs
Source:
NameValueCollection.cs

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()

Property Value

String[]

A String array that contains all the keys of the NameValueCollection.

Remarks

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.

Applies to

See also