Control Blocks Control Blocks are for composing an HTML form with Compute layout block. Arakawa supports various control blocks. ar.TextBox("text") ar.NumberBox("number") ar.RangeField(name="range", min=0, max=100, step=10) ar.SwitchField("switch") ar.FileField("file") ar.DateTimeField("date-time") API References¶ Check out the API Reference to know details: Choices & Tags Datetimes File Numbers Switch Texts Validation