ListItemCollection.IndexOf(ListItem) Method

Definition

Determines the index value that represents the position of the specified ListItem in the collection.

public int IndexOf (System.Web.UI.WebControls.ListItem item);

Parameters

item
ListItem

A ListItem to search for in the collection.

Returns

The index position of the specified ListItem in the collection.

Remarks

Use the IndexOf method to determine the index value of the ListItem specified by the item parameter in the collection. If an item with this criteria is not found in the collection, -1 is returned.

Applies to

产品 版本
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1