NameScope.ContainsKey(String) Method

Reference

Definition

Namespace:: System.Windows

Assembly:: WindowsBase.dll

Important

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Returns whether a provided name already exists in this NameScope.

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

public bool ContainsKey (string key);

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

Public Function ContainsKey (key As String) As Boolean

Parameters

key: String

The string key to find.

Returns

Boolean

true if the specified key identifies a name for an existing mapping in this NameScope. false if the specified key does not exist in the current NameScope.

Implements

ContainsKey(TKey)

Exceptions

ArgumentNullException

key is null.

Remarks

Names in a XAML namescope must use a particular grammar that restricts the strings you might use for inputs of NameScope API. See XamlName Grammar.

Applies to

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