A selectizeInput customized for data frames with column labels

Usage

columnSelectInput(
  inputId,
  label,
  data,
  choices = names,
  selected = "",
  ...,
  placeholder = "",
  onInitialize
)

inputId: passed to selectizeInput
label: passed to selectizeInput
data: data.frame object from which fields should be populated
choices: a list of values to select from, passed to selectizeInput. Alternatively, choices may also be a function used to extract choices from a (possibly filtered) data. Defaults to the names of data.
selected: default selection
...: passed to selectizeInput
placeholder: passed to selectizeInput options
onInitialize: passed to selectizeInput options

a selectizeInput dropdown element