ExpandoObject.IDictionary<String,Object>.ContainsKey(String) Method

Reference

Definition

Namespace:: System.Dynamic

Assemblies:: System.Core.dll, System.Dynamic.Runtime.dll

Assemblies:: netstandard.dll, System.Linq.Expressions.dll

Assembly:: System.Dynamic.Runtime.dll

Assembly:: System.Linq.Expressions.dll

Assembly:: System.Core.dll

Assembly:: netstandard.dll

Source:: ExpandoObject.cs

Source:: ExpandoObject.cs

Source:: ExpandoObject.cs

Important

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Determines whether the dictionary contains the specified key.

 virtual bool System.Collections.Generic.IDictionary<System.String,System.Object>.ContainsKey(System::String ^ key) = System::Collections::Generic::IDictionary<System::String ^, System::Object ^>::ContainsKey;

bool IDictionary<string,object>.ContainsKey(string key);

abstract member System.Collections.Generic.IDictionary<System.String,System.Object>.ContainsKey : string -> bool
override this.System.Collections.Generic.IDictionary<System.String,System.Object>.ContainsKey : string -> bool

Function ContainsKey (key As String) As Boolean Implements IDictionary(Of String, Object).ContainsKey

Parameters

key: String

The key to locate in the dictionary.

Returns

Boolean

true if the dictionary contains an element that has the specified key; otherwise, false.

Implements

ContainsKey(TKey)

Applies to

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, 10
.NET Framework	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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