NameScope.ContainsKey(String) Method
Definition
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
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
Exceptions
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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