> For the complete documentation index, see [llms.txt](https://giantgrey.gitbook.io/databrain/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://giantgrey.gitbook.io/databrain/attributes/field-attributes.md).
# Field attributes
### DataObjectDropdown
Enables a useful dropdown field with additional features such as unassign, create new and find DataObject. When using this attribute outside of a DataObject - like in a MonoBehaviour, it is necessary to add a reference to the DataLibrary object and pass the name of the DataLibrary field.
* dataLibraryFieldName: the name of the data library field
* includeSubtypes: if true, dropdown also shows derived types
* tooltip: set an additional etooltip
```csharp
public class Enemy : MonoBehaviour
{
public DataLibrary data;
[DataObjectDropdown("data")]
public EnemyData enemyData;
}
```
### ExposeToInspector
Use the ExposeToInspector attribute to mark fields which should be displayed in the popup inspector on the DataObjectDropdown property drawer.
```csharp
public EnemyData : DataObject
{
[ExposeToInspector]
public int health;
[ExposeToInspector]
public int speed;
[ExposeToInspector]
public GameObject prefab
public Vector3 position;
}
```
### DatabrainSerialize
Mark fields which should be serialized by Databrain to a file with the \[DatabrainSerialize] attribute. Only fields of DataObjects which are in the runtime-DataLibrary will be serialized.
[DataObjectAddToRuntimeLibrary]
public EnemyData : DataObject
{
[ExposeToInspector]
[DatabrainSerialize]
public int health;
[ExposeToInspector]
[DatabrainSerialize]
public int speed;
[ExposeToInspector]
public GameObject prefab
[DatabrainSerialize]
public Vector3 position;
}
### Border
Set a border around a field
* borderWidth: The width of the border
* color: The color of the border
### HorizontalLine
Create a horizontal line with custom width and color
* height: height of the line
* color: color of the line (DatabrainColor)
### Dropdown
Create a dropdown selection
```csharp
// string
private List dropdownOptions = new List { "A", "B", "C" };
[Dropdown("dropdownOptions")]
public string dropdown;
// integer
private List dropdownIntOptions = new List { 0, 1, 2 };
[Dropdown("dropdownIntOptions")]
public int dropdownNumber;
```
### Foldout
Group fields by foldouts (only works in the Databrain editor)
```csharp
[Foldout("curves")]
public AnimationCurve curve1;
[Foldout("curves")]
public AnimationCurve curve2;
[Foldout("Numbers")]
public int numberOne;
[Foldout("Numbers")]
public int numberTwo;
```
### InfoBox
Shows an info box.
* infoBoxtype: The type of the infoBox (InfoBoxType.Normal / InfoBoxType.Warning / InfoBoxType.Error
* text: The text message
### EnumFlags
Shows an enum selection toggle group for choosing multiple enums.
```csharp
public enum TerrainType
{
none = 0,
sand = 1,
earth = 2,
water = 4,
rock = 8
}
[EnumFlags]
public TerrainType terrainType;
```
### Hide
Hides a field
### Layer
Shows a layer dropdown.
```csharp
[Layer]
public string layer;
[Layer]
public int layerInt;
```
### Slider
Create a slider with min and max value
### Scene
Create a scene dropdown field
### ShowAssetPreview
Creates a preview window of assigned game object
* width
* height
### Tag
Creates a tag dropdown field.
```csharp
[Tag]
public string tag;
```
### Textfield
Creates a multiline textfield
### Title
Adds a title to the field with an optional border.
* title
* borderColor
* textColor
