Map lenghtMenu property — get_dt

Maps the lengthMenu selected value property of DT::datatable to a shiny variable.

Usage

get_dt_rows(dt_name, dt_rows)

Arguments

dt_name: ns() of inputId of the DT::datatable
dt_rows: ns() of inputId of the variable that holds the current selected value of lengthMenu

Value

(shiny::tagList) A shiny tagList.

Examples

library(shiny)
library(DT)
#> 
#> Attaching package: ‘DT’
#> The following objects are masked from ‘package:shiny’:
#> 
#>     dataTableOutput, renderDataTable

ui <- function(id) {
  ns <- NS(id)
  tagList(
    DTOutput(ns("data_table")),
    get_dt_rows(ns("data_table"), ns("dt_rows"))
  )
}

# use the input$dt_rows in the Shiny Server function
server <- function(id) {
  moduleServer(id, function(input, output, session) {
    output$data_table <- renderDataTable(
      {
        iris
      },
      options = list(pageLength = input$dt_rows)
    )
  })
}

if (interactive()) {
  shinyApp(
    ui = ui("my_table_module"),
    server = function(input, output, session) server("my_table_module")
  )
}