ListBox.SelectedIndexCollection.IndexOf(Int32) Method

Reference

Definition

Namespace:: System.Windows.Forms

Assembly:: System.Windows.Forms.dll

Source:: ListBox.SelectedIndexCollection.cs

Source:: ListBox.SelectedIndexCollection.cs

Source:: ListBox.SelectedIndexCollection.cs

Important

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Returns the index within the ListBox.SelectedIndexCollection of the specified index from the ListBox.ObjectCollection of the ListBox.

public:
 int IndexOf(int selectedIndex);

public int IndexOf (int selectedIndex);

member this.IndexOf : int -> int

Public Function IndexOf (selectedIndex As Integer) As Integer

Parameters

selectedIndex: Int32

The zero-based index from the ListBox.ObjectCollection to locate in this collection.

Returns

Int32

The zero-based index in the collection where the specified index of the ListBox.ObjectCollection was located within the ListBox.SelectedIndexCollection; otherwise, negative one (-1).

Remarks

Once you know that an item is located within the collection (using the Contains method), you can use the IndexOf method to determine where a specific index position within the ListBox.ObjectCollection for the ListBox is stored within the ListBox.SelectedIndexCollection.

Applies to

共用方式為