我的R闪亮应用程序加载了信息,我希望在加载这些信息之前,会自动刷新会话。
曾多次问过类似的问题,但答案总是带有一个按钮。例如:Page refresh Button in R shiny
我试图在服务器部分的观察功能中包含重置代码,但未成功:
observe({
jsResetCode <- "shinyjs.reset = function() {history.go(0)}" # Define the js method that resets the page
useShinyjs()
extendShinyjs(text = jsResetCode)
})
如何从函数内部自动刷新R闪亮的会话?
我将必须看到完整的代码才能为您提供帮助。看看这些是否对您有帮助。玩得开心
library(shiny)
library(shinydashboard)
dat = data.frame(id = c("d","a","c","b"), a = c(1,2,3,4), b = c(6,7,8,9))
header <- dashboardHeader(
)
sidebar <- dashboardSidebar(
tags$head(tags$style(HTML('.content-wrapper { height: 1500px !important;}'))),
sidebarMenu (
menuItem("A", tabName = "d1"),
menuItem("B", tabName = "d2"),
menuItem("C", tabName = "d3")
)
)
body <- dashboardBody(
tabItems(
tabItem(tabName = "d1",
box(title = "AAA",
actionButton("refreshTab1_id", "Refresh Tab 1"),
actionButton("sortTable1_id", "Sort Table 1"),
DT::dataTableOutput("table_for_tab_1", width = "100%"))
),
tabItem(tabName = "d2",
box(title = "BBB",
actionButton("refreshTab2_id", "Refresh Tab 2"),
actionButton("sortTable2_id", "Sort Table 2"),
DT::dataTableOutput("table_for_tab_2", width = "100%"))
),
tabItem(tabName = "d3",
box(title = "CCC",
actionButton("refreshTab3_id", "Refresh Tab 3"),
actionButton("sortTable3_id", "Sort Table 3"),
DT::dataTableOutput("table_for_tab_3", width = "100%"))
)
)
)
# UI
ui <- dashboardPage(header, sidebar, body)
# Server
server <- function(input, output, session) {
observe({
if (input$sortTable1_id || input$sortTable2_id || input$sortTable3_id) {
dat_1 = dat %>% dplyr::arrange(id)
} else {
dat_1 = dat
}
output$table_for_tab_1 <- output$table_for_tab_2 <- output$table_for_tab_3 <- DT::renderDataTable({
DT::datatable(dat_1,
filter = 'bottom',
selection = "single",
colnames = c("Id", "A", "B"),
options = list(pageLength = 10,
autoWidth = TRUE#,
# columnDefs = list(list(targets = 9,
# visible = FALSE))
)
)
})
})
observe({
if (input$refreshTab1_id || input$refreshTab2_id || input$refreshTab3_id) {
session$reload()
}
})
}
# Shiny dashboard
shiny::shinyApp(ui, server)