| AddLookup | Adds a single lookup to a lookup property. |
| ExpandPlaceholderText | Returns a string with M-Files placeholders replaced with values. |
| GetValueT(PropertyValue) | Get the value of property value and cast it to the specified type. |
| GetValueT(PropertyValue, T) | Get the value of property value and cast it to the specified type. |
| IsEqual | Checks if the property values are equal. If either of the property values is null, the values are treated as they were different. |
| RemoveLookup | Removes the item from the specified lookup property. |