updateDateRangeInput: Change the start and end values of a date range input on the...

In ymd526442121/Rproject_shiny: Web Application Framework for R

Description

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

Usage

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

Arguments

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.
end	The end date. Either a Date object, or a string in yyyy-mm-dd format.
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.

Details

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).

See Also

dateRangeInput

Examples

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

ui <- fluidPage(
  sliderInput("controller", "Controller", 1, 30, 10),
  dateRangeInput("inDateRange", "Input date range")
)

server <- function(input, output, session) {
  observe({
    # We'll use the input$controller variable multiple times, so save it as x
    # for convenience.
    x <- input$controller

    updateDateRangeInput(session, "inDateRange",
      label = paste("Date range label", x),
      start = paste("2013-01-", x, sep=""),
      end = paste("2013-12-", x, sep="")
    )
  })
}

shinyApp(ui, server)
}

ymd526442121/Rproject_shiny documentation built on May 4, 2019, 5:31 p.m.