DT::datatable 的背景颜色闪亮

如何在闪亮的应用程序中更改数据表中选定行的背景颜色？我的 ui.R 有以下代码：

library(shinydashboard)

header <- dashboardHeader(title = 'title')
sidebar <- dashboardSidebar(
  sidebarMenu(
    menuItem('dashboard', tabName = 'dashboard', icon = icon('dashboard'))
  )
)
body <- dashboardBody(
  fluidRow(
    column(width = 6,
           box(
             title = 'box', width = NULL, status = 'primary',
             DT::dataTableOutput('table1')
           ),
           box(
             title = 'box', width = NULL, status = 'primary',
             DT::dataTableOutput('table2')
           )
    ),
    column(width = 6,
           box(
             title = 'box', width = NULL, status = 'primary',
             DT::dataTableOutput('table3')
           )
    )
  )
)
dashboardPage(header, sidebar, body)

您可以使用 CSS 来执行此操作。所选行的颜色设置为table.dataTable tbody tr.selected { background-color: #B0BED9;} in jquery.min.dataTables.css.

这是一个基于您的代码的最小示例，说明如何使用tags$style:

library(shinydashboard)

header <- dashboardHeader(title = 'title')
sidebar <- dashboardSidebar(
  sidebarMenu(
    menuItem('dashboard', tabName = 'dashboard', icon = icon('dashboard'))
  )
)
body <- dashboardBody(
  tags$head(tags$style(HTML("#table1 tr.selected, #table2 tr.selected {background-color:red}"))),
  fluidRow(
    column(width = 6,
           box(
             title = 'box', width = NULL, status = 'primary',
             DT::dataTableOutput('table1')
           ),
           box(
             title = 'box', width = NULL, status = 'primary',
             DT::dataTableOutput('table2')
           )
    )
  )
)
ui<-dashboardPage(header, sidebar, body)

server = function(input, output) {
  output$table1 = DT::renderDataTable(
    iris, options = list(lengthChange = FALSE)
  )

  output$table2 = DT::renderDataTable(
    iris, options = list(lengthChange = FALSE)
  )
}

shinyApp(ui,server)

我添加了表 id (#table1 tr.selected, #table2 tr.selected）以便此选择器比默认选择器具有更大的权重并覆盖它，有关此的更多信息here https://stackoverflow.com/questions/20721248/best-way-to-override-bootstrap-css.