| DropDown |
| DropdownIndicator | The icon of an arrow pointing down on the right of the element. |
| BuildOptions | Called just before opening, allows options to be dynamic |
| Options | The options to show on click. You can edit these directly via this property. |
| Selected | The currently selected option. |
| Value | The current string value. This is useful to have if Selected is null. |
| ValueChanged | Called when the value has been changed, |
| OnParametersSet | |
| Open | Open the dropdown. |
| Select | Select an option. |
| SetPropertyObject |