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url: /flow/guide/scripting-reference/classes/field.md
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# Field

## Declaration

`DATAVIEW.FieldByName['fieldname'] : TField`

`DATAVIEW['fieldname'] : TField`

## Description

The Field object can be used to retrieve data from a field within a Data View.

Normally the `.Value` property is used to retrieve the value of a field however you can impose some formatting/conversion by using specific properties like `.AsString`, and `.AsFloat` (Refer to [Referencing Fields](/flow/guide/scripting-reference/referencing-fields) for more information)

::: tip
Whereas the Value property will retrieve the value as a Variant, the other functions will convert the value to its type. For instance if the field is null then retrieving the value using AsString will result in a blank string being returned instead of a null value.
:::

You can access a field object by referencing it from a Data View object. This is achieved through the FieldByName function however because fields are used so commonly it is normally written in shorthand such as DATAVIEW\['FieldName']

### Usage

Among other things the following tasks can be achieved by working with the Field object

::: details Set or retrieve the value of the field
You can set or read the value of a field using .Value, .AsString, .AsInteger, and .AsFloat
:::

::: details You can determine the length of the field value
The Length property will return the length of the fields value. This only applies to string fields
:::