ItemsSourceView.IndexFromKey(String) Method

Reference

Definition

Namespace:: Microsoft.UI.Xaml.Controls

Important

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Retrieves the index of the item that has the specified unique identifier (key).

This documentation applies to WinUI 2 for UWP (for WinUI in the Windows App SDK, see the Windows App SDK namespaces).

public:
 virtual int IndexFromKey(Platform::String ^ key) = IndexFromKey;

int IndexFromKey(winrt::hstring const& key);

public int IndexFromKey(string key);

Public Function IndexFromKey (key As String) As Integer

Parameters

key: String
Platform::String

winrt::hstring

The unique identifier (key) of the item to find the index of.

Returns

Int32

int

The index of the item with the specified key.

Remarks

Check that the HasKeyIndexMapping property is true before calling this method. If the data source does not support unique IDs (key values), this method causes a NotImplementedException.

Applies to