NameValueCollection.HasKeys Method
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Gets a value indicating whether the NameValueCollection contains keys that are not null.
public:
bool HasKeys();C#
public bool HasKeys();member this.HasKeys : unit -> boolPublic Function HasKeys () As Booleantrue if the NameValueCollection contains keys that are not null; otherwise, false.
This method is an O(1) operation.
| 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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