## SubComponent.AddElement

### Description

Adds an element to the SubComponent using its index. All subelements can be added except isolines and isopoints (because those are not indexable subelements). That means that if you want to add a Vertex to a cluster of type siVertexCluster (from the ClusterTypes enum) you call AddElement with the index of the Vertex in the Geometry.

### C# Syntax

    SubComponent.AddElement( Object in_Elem );

### Scripting Syntax

    SubComponent.AddElement( Element );

### Parameters

Parameter | Type | Description
--- | --- | ---
Element | Variant | Index of the element that we want to add to the SubComponent element.

### Examples

#### VBScript Example

    '
    ' This example demonstrates how to add an element by index number.
    ' It also shows what happens when you try to add an element that
    ' is already part of the SubComponent and what happens when you
    ' try to add an element using an invalid index number.
    '
    NewScene , false
    set oObject = Application.ActiveSceneRoot.AddGeometry( "Cube", "MeshSurface", "MyCube" )
    set oSubComponent = oObject.ActivePrimitive.Geometry.CreateSubComponent( siVertexCluster, Array(3,4,5) )
    Application.LogMessage oSubComponent
    ' Add the vertex at index 6 to the subcomponent
    oSubComponent.AddElement 6
    Application.LogMessage oSubComponent
    ' No change to the SubComponent since the vertex at index 4 is already part of it
    oSubComponent.AddElement 4
    Application.LogMessage oSubComponent
    ' No change to the SubComponent since index 55 is not a valid vertex index
    On Error Resume Next
    oSubComponent.AddElement 55
    Application.LogMessage Err.Description
    On Error GoTo 0
    ' Expected results:
    'INFO : MyCube.pnt[3-5]
    'INFO : MyCube.pnt[3-6]
    'INFO : MyCube.pnt[3-6]
    'INFO : 2028 - Invalid argument specified.