在R闪亮仪表板的多个菜单项中使用UIOutput [英] Usage of UIOutput in multiple menuItems in R shiny dashboard
本文介绍了在R闪亮仪表板的多个菜单项中使用UIOutput的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
candyData <- read.table(
text = "
Brand Candy value
Nestle 100Grand Choc1
Netle Butterfinger Choc2
Nestle Crunch Choc2
Hershey's KitKat Choc4
Hershey's Reeses Choc3
Hershey's Mounds Choc2
Mars Snickers Choc5
Nestle 100Grand Choc3
Nestle Crunch Choc4
Hershey's KitKat Choc5
Hershey's Reeses Choc2
Hershey's Mounds Choc1
Mars Twix Choc3
Mars Vaid Choc2",
header = TRUE,
stringsAsFactors = FALSE)
library(shiny)
library(shinydashboard)
ui <- dashboardPage(
dashboardHeader(),
dashboardSidebar(
sidebarMenu(
id = "tabs",
menuItem("Charts", icon = icon("bar-chart-o"),
menuSubItem("Sub-item 1", tabName = "subitem1"),
menuSubItem("Sub-item 2", tabName = "subitem2"),
menuSubItem("Sub-item 3", tabName = "subitem3")
))),
dashboardBody(
tabItems(tabItem("subitem1", uiOutput("brand_selector")),
tabItem("subitem2", 4),
tabItem("subitem3", 7))
))
server <- function(input, output,session) {
observeEvent(input$Select1,{
updateSelectInput(session,'Select2',
choices=unique(candyData$Candy[candyData$Brand==input$Select1]))
})
observeEvent(input$Select2,{
updateSelectInput(session,'Select3',
choices=unique(candyData$value[candyData$Brand==input$Select1 &
candyData$Candy==input$Select2]))
})
output$brand_selector <- renderUI({
box(title = "Data", status = "primary", solidHeader = T, width = 12,
fluidPage(
fluidRow(
column(2,offset = 0, style='padding:1px;',
selectInput("Select1","select1",unique(candyData$Brand))),
column(2,offset = 0,
style='padding:1px;',selectInput("Select2","select2",choices = NULL)),
column(2, offset = 0,
style='padding:1px;',selectInput("Select3","select3",choices=NULL ))
)))
})}
shinyApp(ui = ui, server = server)
推荐答案
您可以创建一个虚拟tabItem
,并选择bu默认值。这会给人一种没有选择tabItem
的错觉。要隐藏tabItem
选项,可以使用shinyjs
包中的hidden
函数。
以下是修改后的ui
代码:
ui <- dashboardPage(
dashboardHeader(),
dashboardSidebar(
sidebarMenu(
shinyjs::useShinyjs(),
id = "tabs",
menuItem("Charts", icon = icon("bar-chart-o"),
shinyjs::hidden(menuSubItem("dummy", tabName = "dummy")),
menuSubItem("Sub-item 1", tabName = "subitem1"),
menuSubItem("Sub-item 2", tabName = "subitem2"),
menuSubItem("Sub-item 3", tabName = "subitem3")
))),
dashboardBody(
tabItems(tabItem("dummy"),
tabItem("subitem1", uiOutput("brand_selector")),
tabItem("subitem2", 4),
tabItem("subitem3", 7))
))
EDIT1: 根据bu Joehere答案中的注释和参考,您可以执行以下操作:
candyData <- read.table(
text = "
Brand Candy value
Nestle 100Grand Choc1
Netle Butterfinger Choc2
Nestle Crunch Choc2
Hershey's KitKat Choc4
Hershey's Reeses Choc3
Hershey's Mounds Choc2
Mars Snickers Choc5
Nestle 100Grand Choc3
Nestle Crunch Choc4
Hershey's KitKat Choc5
Hershey's Reeses Choc2
Hershey's Mounds Choc1
Mars Twix Choc3
Mars Vaid Choc2",
header = TRUE,
stringsAsFactors = FALSE)
library(shiny)
library(shinydashboard)
ui <- dashboardPage(
dashboardHeader(),
dashboardSidebar(
sidebarMenu(
shinyjs::useShinyjs(),
id = "tabs",
menuItem("Charts", icon = icon("bar-chart-o"),
shinyjs::hidden(menuSubItem("dummy", tabName = "dummy")),
menuSubItem("Sub-item 1", tabName = "subitem1"),
menuSubItem("Sub-item 2", tabName = "subitem2"),
menuSubItem("Sub-item 3", tabName = "subitem3")
))),
dashboardBody(
tabItems(tabItem("dummy"),
tabItem("subitem1", uiOutput("brand_selector")),
tabItem("subitem2", uiOutput("brand_selector1")),
tabItem("subitem3", uiOutput("brand_selector2")))
))
server <- function(input, output,session) {
observeEvent(input$Select1,{
updateSelectInput(session,'Select2',
choices=unique(candyData$Candy[candyData$Brand==input$Select1]))
})
observeEvent(input$Select2,{
updateSelectInput(session,'Select3',
choices=unique(candyData$value[candyData$Brand==input$Select1 &
candyData$Candy==input$Select2]))
})
output$brand_selector1 <- output$brand_selector2 <- output$brand_selector <- renderUI({
box(title = "Data", status = "primary", solidHeader = T, width = 12,
fluidPage(
fluidRow(
column(2,offset = 0, style='padding:1px;',
selectInput("Select1","select1",unique(candyData$Brand))),
column(2,offset = 0,
style='padding:1px;',selectInput("Select2","select2",choices = NULL)),
column(2, offset = 0,
style='padding:1px;',selectInput("Select3","select3",choices=NULL ))
)))
})}
shinyApp(ui = ui, server = server)
EDIT2:
这里有一个略有不同的方法,不使用renderUI
和使用shinyModule
:
candyData <- read.table(
text = "
Brand Candy value
Nestle 100Grand Choc1
Netle Butterfinger Choc2
Nestle Crunch Choc2
Hershey's KitKat Choc4
Hershey's Reeses Choc3
Hershey's Mounds Choc2
Mars Snickers Choc5
Nestle 100Grand Choc3
Nestle Crunch Choc4
Hershey's KitKat Choc5
Hershey's Reeses Choc2
Hershey's Mounds Choc1
Mars Twix Choc3
Mars Vaid Choc2",
header = TRUE,
stringsAsFactors = FALSE)
library(shiny)
library(shinydashboard)
submenuUI <- function(id) {
ns <- NS(id)
tagList(
box(title = "Data", status = "primary", solidHeader = T, width = 12,
fluidPage(
fluidRow(
column(2,offset = 0, style='padding:1px;',
selectInput(ns("Select1"),"select1",unique(candyData$Brand))),
column(2,offset = 0,
style='padding:1px;',selectInput(ns("Select2"),"select2",choices = NULL)),
column(2, offset = 0,
style='padding:1px;',selectInput(ns("Select3"),"select3",choices=NULL ))
)))
)
}
# submenu <- function(input,output,session){}
submenuServ <- function(input, output, session){
observeEvent(input$Select1,{
updateSelectInput(session,'Select2',
choices=unique(candyData$Candy[candyData$Brand==input$Select1]))
})
observeEvent(input$Select2,{
updateSelectInput(session,'Select3',
choices=unique(candyData$value[candyData$Brand==input$Select1 &
candyData$Candy==input$Select2]))
})
}
ui <- dashboardPage(
dashboardHeader(),
dashboardSidebar(
sidebarMenu(
shinyjs::useShinyjs(),
id = "tabs",
menuItem("Charts", icon = icon("bar-chart-o"),
shinyjs::hidden(menuSubItem("dummy", tabName = "dummy")),
menuSubItem("Sub-item 1", tabName = "subitem1"),
menuSubItem("Sub-item 2", tabName = "subitem2"),
menuSubItem("Sub-item 3", tabName = "subitem3")
))),
dashboardBody(
tabItems(tabItem("dummy"),
tabItem("subitem1", submenuUI('submenu1')),
tabItem("subitem2", submenuUI('submenu2')),
tabItem("subitem3", submenuUI('submenu3'))
)
))
server <- function(input, output,session) {
callModule(submenuServ,"submenu1")
callModule(submenuServ,"submenu2")
callModule(submenuServ,"submenu3")
}
shinyApp(ui = ui, server = server)
希望能有所帮助!
这篇关于在R闪亮仪表板的多个菜单项中使用UIOutput的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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