看看下面的例子,在Datatable单击时生成一个图表。
在这里,您可以将选定的行包装为反应性的SelectedRow()
,然后可以使用该行来映射行号。我已经显示的行数在modal
标题:
rm(list = ls())
library(DT)
library(shiny)
library(shinyBS)
# This function will create the buttons for the datatable, they will be unique
shinyInput <- function(FUN, len, id, ...) {inputs <- character(len)
for (i in seq_len(len)) {
inputs[i] <- as.character(FUN(paste0(id, i), ...))}
inputs
}
ui <- fluidPage(
DT::dataTableOutput('my_table'),uiOutput("popup")
)
server <- function(input, output, session) {
my_data <- reactive({
testdata <- mtcars
as.data.frame(cbind(View = shinyInput(actionButton, nrow(testdata),'button_', label = "View", onclick = 'Shiny.onInputChange(\"select_button\", this.id)'),testdata))
})
output$my_table <- DT::renderDataTable(my_data(),selection = 'single',options = list(searching = FALSE,pageLength = 10),server = FALSE, escape = FALSE,rownames= FALSE)
SelectedRow <- eventReactive(input$select_button,{
as.numeric(strsplit(input$select_button, "_")[[1]][2])
})
observeEvent(input$select_button, {
toggleModal(session, "modalExample", "open")
})
DataRow <- eventReactive(input$select_button,{
my_data()[SelectedRow(),2:ncol(my_data())]
})
output$popup <- renderUI({
bsModal("modalExample", paste0("Data for Row Number: ",SelectedRow()), "", size = "large",
column(12,renderPlot(plot(mtcars))
)
)
})
}
shinyApp(ui, server)