updateCheckboxInput(session, inputId, label = NULL, value = 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.
value The value to set for the input object.


Change the value of a checkbox input on the client


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.


## Not run: ------------------------------------ # 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) # }) # }) ## ---------------------------------------------

See also