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IGxObjectArray.Insert Method (ArcObjects .NET 10.5 SDK)

ArcObjects Library Reference (Catalog)

IGxObjectArray.Insert Method

Inserts an object into the array before the specified index. If index is -1, the object is inserted at the end.

[Visual Basic .NET]
Public Sub Insert ( _
    ByVal index As Integer, _
    ByVal gxObject As IGxObject _
)

[C#]
public void Insert (
    int index,
    IGxObject gxObject
);

Available with ArcGIS Desktop.