使用shiny DT包中的选择扩展附带的全选按钮仅选择过滤的行

我试图使用闪亮的 DT 包中的选择扩展附带的全选按钮来仅选择过滤的行，但它会选择所有行。 这是闪亮的样本app https://radhikesh.shinyapps.io/selectextension/

以下是该应用程序的可重现代码：

library(DT)
data(mpg)
# Define UI for application 
ui <- fluidPage(

    # Application title
    titlePanel("Select only filtered rows using selectall button"),

    br(),
    br(),

    DT::dataTableOutput("table")


)

# Define server logic 
server <- function(input, output) {

    output$table <- DT::renderDataTable({
        datatable(mpg, escape=F,
                  rownames=F,
                  filter = 'top',
                  #  colnames = c("Data Type","Variable","Description", "Filename"),
                  class = "compact hover row-border",
                  extensions = c('Scroller','Select', 'Buttons'),

                  options = list(
                      select = list(style = "multi", items = "row"),
                      columnDefs = list(list(className = 'dt-center', targets = "_all")),
                      language = list(
                          info = 'Showing _START_ to _END_ of _TOTAL_ variables'),
                      deferRender = TRUE,
                      scrollY = 500,
                      scroller = TRUE,
                      dom = "Blfrtip",
                      buttons = c('selectAll', 'selectNone')
                  ),
                  selection="none"
        ) }, server = F
    )
}

# Run the application 
shinyApp(ui = ui, server = server)

我想我可能需要添加一些自定义 JavaScript 来解决这个问题，但我不擅长它。 任何人都可以提供帮助或提供任何建议。

Thanks

不知何故，我设法找到了我的问题的解决方案。将其发布在这里，这样可能会对其他人有所帮助。我从几个地方得到了帮助。数据表文档 https://datatables.net/reference/option/buttons.buttons.extend and 堆栈溢出 https://stackoverflow.com/a/40363328/6090977

使用这些帮助，我扩展了全选按钮功能，并将其扩展为取消全选按钮（取消选择任何筛选的行）。

这是更新后的闪亮app https://radhikesh.shinyapps.io/selectextension/

以下是更新后的代码：

library(shiny)
library(DT)
data(mpg)
# Define UI for application that draws a histogram
ui <- fluidPage(

    # Application title
    titlePanel("Select only filtered rows using selectall button"),
    
    br(),
    br(),
    
    DT::dataTableOutput("table")
    
        
    
)

# Define server logic required to draw a histogram
server <- function(input, output) {

    output$table <- DT::renderDataTable({
        datatable(mpg, escape=F,
                  rownames=F,
                  filter = 'top',
                  #  colnames = c("Data Type","Variable","Description", "Filename"),
                  class = "compact hover row-border",
                  extensions = c('Scroller','Select', 'Buttons'),
                  
                  options = list(
                      select = list(style = "multi", items = "row"),
                      columnDefs = list(list(className = 'dt-center', targets = "_all")),
                      language = list(
                          info = 'Showing _START_ to _END_ of _TOTAL_ variables'),
                      deferRender = TRUE,
                      scrollY = 500,
                      scroller = TRUE,
                      dom = "Blfrtip",
                      buttons = list(list(extend='selectAll',className='selectAll',
                                text="select all rows",
                                action=DT::JS("function () {
                                var table = $('.dataTable').DataTable();
                                table.rows({ search: 'applied'}).deselect();
                                table.rows({ search: 'applied'}).select();
                }")
                                ), list(extend='selectNone',
                                        text="DeselectAll",
                                        action=DT::JS("function () {
                                var table = $('.dataTable').DataTable();
                                table.rows({ search: 'applied'}).select();
                                table.rows({ search: 'applied'}).deselect();
                }")
                                ))
                      
                  ),
                  selection="none"
        ) }, server = F
    )
}

# Run the application 
shinyApp(ui = ui, server = server)

希望这对其他人有帮助。