shiny (version 0.9.1)

updateCheckboxInput: Change the value of a checkbox input on the client

Description

Change the value of a checkbox input on the client

Usage

updateCheckboxInput(session, inputId, label = NULL, value = NULL)

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.

See Also

checkboxInput

Examples

shinyServer(function(input, output, session) {

  observe({
    # TRUE if input$controller is even, FALSE otherwise.
    x_even <- input$controller %% 2 == 0

    updateCheckboxInput(session, "inCheckbox", value = x_even)
  })
})