updateDateRangeInput: Change the start and end values of a date range input on the...
In nGanon/R_shiny: Web Application Framework for R

Description Usage Arguments Details See Also Examples

Change the start and end values of a date range input on the client

1 2	updateDateRangeInput(session, inputId, label = NULL, start = NULL, end = NULL, min = NULL, max = NULL)

`session`	The `session` object passed to function given to `shinyServer`.
`inputId`	The id of the input object.
`label`	The label to set for the input object.
`start`	The start date. Either a Date object, or a string in `yyyy-mm-dd` format. Supplying `NA` clears the start date.
`end`	The end date. Either a Date object, or a string in `yyyy-mm-dd` format. Supplying `NA` clears the end date.
`min`	The minimum allowed date. Either a Date object, or a string in `yyyy-mm-dd` format.
`max`	The maximum allowed date. Either a Date object, or a string in `yyyy-mm-dd` format.

The input updater functions send a message to the client, telling it to change the settings of an input object. The messages are collected and sent after all the observers (including outputs) have finished running.

The syntax of these functions is similar to the functions that created the inputs in the first place. For example, numericInput() and updateNumericInput() take a similar set of arguments.

Any arguments with NULL values will be ignored; they will not result in any changes to the input object on the client.

For radioButtons(), checkboxGroupInput() and selectInput(), the set of choices can be cleared by using choices=character(0). Similarly, for these inputs, the selected item can be cleared by using selected=character(0).

dateRangeInput

## Only run examples in interactive R sessions
if (interactive()) {

ui <- fluidPage(
  sliderInput("n", "Day of month", 1, 30, 10),
  dateRangeInput("inDateRange", "Input date range")
)

server <- function(input, output, session) {
  observe({
    date <- as.Date(paste0("2013-04-", input$n))

    updateDateRangeInput(session, "inDateRange",
      label = paste("Date range label", input$n),
      start = date - 1,
      end = date + 1,
      min = date - 5,
      max = date + 5
    )
  })
}

shinyApp(ui, server)
}