【发布时间】:2018-08-07 20:38:38
【问题描述】:
我想要一个复选框,用于在 Shiny 中的标准 DT::renderDataTable 中选择所有显示的行(显示是关键,因为这在您应用的过滤器和整个数据表之间有所不同)。
是否有任何 DT 扩展已经这样做了?我的编码技能很基础,所以我无法编写等效的 Java 或 HTML 代码。
到目前为止,这是我的应用程序,任何 csv 文件都兼容全选用途。目前有一种笨拙的方法来创建所有选定行的另一个表(手动逐个选择) - 当您想要选择 30 种具有相同特征的动物时,这很困难。
library(shiny)
library(shinyjs)
library(DT)
library(dplyr)
library(data.table)
ui = pageWithSidebar(
headerPanel(""),
#This is where the full animal information file is input, as a ".txt" file.
sidebarPanel(
fileInput("ani", "Upload Animal Information File", accept = ".csv"),
br(),
numericInput("groups","Number of Ewe Groups", value = 1 ),
#This is a list of the table headers. These headers can be indivdually selected to be part of the concatenated "Unique ID" single column.
uiOutput("choose_columns"),
width = 2),
mainPanel(
DT::dataTableOutput("ani1"),
DT::dataTableOutput("selectedEwes")
))
server = function(input, output, session) {
animalinformation <- reactive({
file1 <- input$ani
if (is.null(file1))
return(NULL)
#This removes the Ewes and Status non-zero Rams from the displayed data, so that only live/at hand Rams are shown for selection.
isolate({
anifile <- read.csv(file1$datapath, header = TRUE)
anifile <- as.data.frame(anifile)
})
anifile
})
output$choose_columns <- renderUI({
if (is.null(animalinformation()))
return()
colnames <- names(animalinformation())
# Create the checkboxes and select them all by default
checkboxGroupInput("columns", "Choose Columns",
choices = colnames,
selected = colnames)
})
#This line is repsonsible for creating the table for display.
output$ani1 = DT::renderDataTable({
if (is.null(animalinformation()))
return()
if (is.null(input$columns) || !(input$columns %in% names(animalinformation()))) { return() }
{ datatable(animalinformation()[, input$columns, drop = F], filter = "top") }
})
ani1_selected <- reactive({
ids <- input$ani1_rows_selected
animalinformation()[ids,]
})
#This displays the table of selected rows from the table of Rams. This table can be downloaded or printed, or copied using the buttons that appear above the table, thanks to the 'Buttons' extension.
output$selectedEwes <- DT::renderDataTable({
datatable(
ani1_selected(),
selection = list(mode = "none"),
caption = "Copy to clipboard, download a .csv or print the following table of selected Ewes, using the above buttons.", extensions = 'Buttons', options = list(dom = 'Bfrtip', buttons = c('copy', 'csv', 'excel', 'pdf', 'print'))
)
})
}
shinyApp(ui = ui, server = server)
任何帮助将不胜感激。
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