---
url: /statelake/scripting-reference/classes/dataset-class-tdataset/tdataset.bof.md
---

# TDataset.BOF

This property is an indicator only,

**BOF** stands for Beginning-Of-File and indicates whether the data set is at the beginning of its records.

If **BOF** returns **True** then the active record is the first record in the dataset.

If **BOF** returns False, then the active record is not the first record.

This property is not commonly used. It is more common to check **EOF** to determine whether you are at the end of the dataset.

**Declaration**: property BOF: Boolean

Remember, that \<DatasetName> in this example is a placeholder, and simply refers to the actual name of your data set as per your **Map**.

```pascal
procedure OnMapEvent(var Value:Variant);
begin
 if <DatasetName>.BOF then
  LogInfo('This is the next record that I am processing from this dataset');
end;
```