error_on | R Documentation |
This function turns on the the error o the component. Can be used to validate inputs.
error_on(inputId, error_message = NULL)
inputId |
The input id that you to to turn the error on for. |
error_message |
if you want to add an additional error message. Defaults to NULL, showing the original designed error message |
no return value. This toggles on error css
## Only run examples in interactive R sessions
if (interactive()) {
ui <- fluidPage(
# Required for error handling function
shinyjs::useShinyjs(),
shinyGovstyle::header(
main_text = "Example",
secondary_text = "User Examples",
logo="shinyGovstyle/images/moj_logo.png"),
shinyGovstyle::banner(
inputId = "banner", type = "beta", 'This is a new service'),
shinyGovstyle::gov_layout(size = "two-thirds",
# Error text box
shinyGovstyle::text_Input(
inputId = "eventId",
label = "Event Name",
error = TRUE),
# Button to trigger error
shinyGovstyle::button_Input(inputId = "submit", label = "Submit")
),
shinyGovstyle::footer(full = TRUE)
)
server <- function(input, output, session) {
#Trigger error on blank submit of eventId2
observeEvent(input$submit, {
if (input$eventId != ""){
shinyGovstyle::error_off(inputId = "eventId")
} else {
shinyGovstyle::error_on(
inputId = "eventId",
error_message = "Please complete")
}
})
}
# Run the application
shinyApp(ui = ui, server = server)
}
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.