ComboBox.ObjectCollection.IndexOf Method (Object)

 

Retrieves the index within the collection of the specified item.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public int IndexOf(
	object value
)

Parameters

value
Type: System.Object

An object representing the item to locate in the collection.

Return Value

Type: System.Int32

The zero-based index where the item is located within the collection; otherwise, -1.

Exception Condition
ArgumentNullException

The value parameter was null.

The IndexOf method enables you to determine where an item is located within the collection. To determine if an item is located within the collection before calling this method, use the Contains method.

.NET Framework
Available since 1.1
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