| Capacity | Gets or sets the total number of elements the internal data structure can hold without resizing. (Inherited from ListIElementDefinition) |
| CoorType | Type of coordinate for all vertices in elements in the set |
| Count | Gets the number of elements contained in the ListT. (Inherited from ListIElementDefinition) |
| ElementVertexCount | Number of vertices in all element in the set list. If -1, then the elements have different number of vertices, and you need to check the VertexCount for each element individually. |
| ElmtGeometry | Type of all elements in the set |
| Item | Gets or sets the element at the specified index. (Inherited from ListIElementDefinition) |