R/Shiny:RenderUI循环生成多个对象 [英] R/Shiny : RenderUI in a loop to generate multiple objects
问题描述
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After the success of the dynamic box in shiny here : R/Shiny : Color of boxes depend on select I need you to use these boxes but in a loop. Example : I have an input file which give this :
- BoxA
- BoxB
- BoxC
I want in the renderUI loop these values as a variable to generate dynamically a Box A, B and C. (if I have 4 value, i will have 4 boxes etC.)
Here is my actually code:
for (i in 1:nrow(QRSList))
{ get(QRSOutputS[i]) <- renderUI({ column(4, box(title = h3(QRSList[1], style = "display:inline; font-weight:bold"),
selectInput("s010102i", label = NULL,
choices = list("Non commencé" = "danger", "En cours" = "warning", "Terminé" = "success"),
selected = 1) ,width = 12, background = "blue", status = get(QRSIntputS[i])))
})
column(4,
observeEvent(input$s010102i,{
get(QRSOutputS[i]) <- renderUI({
box(title = h3(QRSList[1], style = "display:inline; font-weight:bold"),
selectInput("s010102i", label = NULL,
choices = list("Not good" = "danger", "average" = "warning", "good" = "success"),
selected = get(QRSIntputS[i])) ,width = 12, background = "blue",status = get(QRSIntputS[i]))
})
The aim is to replace these box names to a variable like input$s010102 for example. But get and assign function does not exist.
Any idea ?
Thanks a lot
Here is an example how to generate boxes dynamically
library(shinydashboard)
library(shiny)
QRSList <- c("Box1","Box2","Box3","Box4","Box5")
ui <- dashboardPage(
dashboardHeader(title = "render Boxes"),
dashboardSidebar(
sidebarMenu(
menuItem("Test", tabName = "Test")
)
),
dashboardBody(
tabItems(
tabItem(tabName = "Test",
fluidRow(
tabPanel("Boxes",uiOutput("myboxes"))
)
)
)
)
)
server <- function(input, output) {
v <- list()
for (i in 1:length(QRSList)){
v[[i]] <- box(width = 3, background = "blue",
title = h3(QRSList[i], style = "display:inline; font-weight:bold"),
selectInput(paste0("slider",i), label = NULL,choices = list("Not good" = "danger", "average" = "warning", "good" = "success"))
)
}
output$myboxes <- renderUI(v)
}
shinyApp(ui = ui, server = server)
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