AcDbEntityPropertyType:
    | "string"
    | "int"
    | "float"
    | "enum"
    | "color"
    | "transparency"
    | "layer"
    | "linetype"
    | "lineweight"
    | "boolean"

Supported value types for entity properties.

Each type determines:

  • how the value is rendered in the property inspector,
  • which UI editor is used,
  • how the value is validated.

These types cover common CAD-style entity attributes such as text values, numeric values, enumerations, and AutoCAD-like drawing attributes (color, layer, linetype, lineweight, etc.).