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ComboBox.ObjectCollection.Insert Method

Inserts an item into the collection at the specified index.

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

public void Insert(
	int index,
	Object item


Type: System.Int32

The zero-based index location where the item is inserted.

Type: System.Object

An object representing the item to insert.


IList.Insert(Int32, Object)


The item was null.


The index was less than zero.


The index was greater than the count of items in the collection.

If the Sorted property of the ComboBox is true, the index parameter is ignored. When an object is added to the collection, the ComboBox calls the object's ToString method is to obtain the string to display in the list.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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