ToolBar.ToolBarButtonCollection.ContainsKey(String) Method

Reference

Definition

Namespace:: System.Windows.Forms

Assembly:: System.Windows.Forms.dll

Important

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Determines if a ToolBarButton with the specified key is contained in the collection.

public:
 virtual bool ContainsKey(System::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 name of the ToolBarButton to search for.

Returns

Boolean

true to indicate a ToolBarButton with the specified key is found; otherwise, false.

Remarks

The Name property corresponds to the key for a ToolBarButton in the ToolBar.ToolBarButtonCollection.

The key comparison is not case-sensitive. If the key parameter is null or an empty string, Item[] returns false.

Applies to

Product	Versions
.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

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