ItemsSourceView.IndexFromKey(String) Method

Definition

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

public:
 virtual int IndexFromKey(Platform::String ^ key) = IndexFromKey;
int IndexFromKey(winrt::hstring const& key);
public int IndexFromKey(string key);
function indexFromKey(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