Control.ControlCollection.ContainsKey(String) Method

Reference

Definition

Namespace:: System.Windows.Forms

Assembly:: System.Windows.Forms.dll

Source:: Control.ControlCollection.cs

Source:: Control.ControlCollection.cs

Source:: Control.ControlCollection.cs

Important

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Determines whether the Control.ControlCollection contains an item with the specified key.

public:
 virtual bool ContainsKey(System::String ^ key);

public virtual bool ContainsKey(string key);

public virtual bool ContainsKey(string? key);

abstract member ContainsKey : string -> bool
override this.ContainsKey : string -> bool

Public Overridable Function ContainsKey (key As String) As Boolean

Parameters

key: String

The key to locate in the Control.ControlCollection.

Returns

Boolean

true if the Control.ControlCollection contains an item with the specified key; otherwise, false.

Remarks

The Name property of a Control corresponds to the key for a Control in the Control.ControlCollection.

Applies to

Producto	Versiones
.NET Framework	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
Windows Desktop	3.0, 3.1, 5, 6, 7, 8, 9, 10

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