I’m trying to generate some new Inputs in a Shiny app after I hit a actionButton but I can see what I’m doing wrong.
histogramUI <- function(id) {
tagList(
actionButton(NS(id, "generate_pickers"), "Generate pickers"),
renderUI(NS(id, "new_button"))
)
}
histogramServer <- function(id) {
moduleServer(id, function(input, output, session) {
observeEvent(input$generate_pickers, {
new_button <- pickerInput(NS(id, "new_button"), "New Button", choices = c())
output$new_button <- renderUI(tagList(new_button))
})
})
}
histogramApp <- function() {
ui <- fluidPage(
histogramUI("hist1")
)
server <- function(input, output, session) {
histogramServer("hist1")
}
shinyApp(ui, server)
}
histogramApp()
>Solution :
In the UI you need to use uiOutput instead of renderUI
uiOutput(NS(id, "new_button"))
Complete code :
library(shiny)
library(shinyWidgets)
histogramUI <- function(id) {
tagList(
actionButton(NS(id, "generate_pickers"), "Generate pickers"),
uiOutput(NS(id, "new_button"))
)
}
histogramServer <- function(id) {
moduleServer(id, function(input, output, session) {
observeEvent(input$generate_pickers, {
new_button <- pickerInput(NS(id, "new_button"), "New Button", choices = c())
output$new_button <- renderUI(tagList(new_button))
})
})
}
histogramApp <- function() {
ui <- fluidPage(
histogramUI("hist1")
)
server <- function(input, output, session) {
histogramServer("hist1")
}
shinyApp(ui, server)
}
histogramApp()