使用CallBack或其他内容突出显示Shiny DataTable中的行

时间:2015-02-06 06:13:50

标签: css r

我想知道你是否可以提供帮助。我有一个简单的闪亮应用程序,它呈现一个dataTable,我想根据一些标准突出显示行的颜色。

以下是我可以运行的代码:

库(有光泽)

runApp(list(
  ui = shinyUI(fluidPage(
    sidebarPanel(),
    mainPanel(dataTableOutput("Table")  )
  )),
  server = function(input, output, session) {
    output$Table<- renderDataTable({ 
      Data<-data.frame(RowNumber= c(1,2,3,4,5,6),Type= c("R","E", "R","E","R","G"), YN =c("N","N","Y","N","Y","N"),P = c(500,100,500,900,0,900))
      print(Data[Data$P== 0,])
      Data
    })
  }
))

我根本没有使用过CSS,但我想根据一些标准为数据表中的每一行着色。标准是:

(1) If "Type" = R AND "YN"= N AND "P" >0 then color the entire row orange 
(2) If "Type" = R AND "YN"= Y AND "P" >0 then color the entire row blue
(3) If "Type" = R AND "YN"= Y AND "P" = 0 then color the entire row yellow

当然,这种着色必须与内置的排序和搜索功能等一起使用。

我已经看过这个解决方案,但无法让它发挥作用:

How to change Datatable row background colour based on the condition in a column, Rshiny

那里的作者提到了&#34;回调&#34; DataTable的功能。你知道在这种情况下如何使用它吗?

你能帮忙吗?

1 个答案:

答案 0 :(得分:4)

您需要一个在创建表格后调用的回调函数来为行着色。

以下是您可以做的事情:

library(shiny)
        ui <- shinyUI(fluidPage(
                sidebarPanel(),
                mainPanel(dataTableOutput("Table"))
        ))
        server <- function(input, output, session) {
                output$Table<- renderDataTable({ 
                        Data<-data.frame(RowNumber= c(1,2,3,4,5,6),Type= c("R","E", "R","E","R","G"), YN =c("N","N","Y","N","Y","N"),P = c(500,100,500,900,0,900))
                        Data},
                        options = list(rowCallback = I(
                                'function(row, data) {
        if (data[1] == "R" & data[2]=="N" & data[3]>0 )
          $("td", row).css("background", "orange");
        else if (data[1] == "R" & data[2]=="Y" & data[3]>0 )
          $("td", row).css("background", "blue");
        else if (data[1] == "R" & data[2]=="Y" & data[3]==0 )
          $("td", row).css("background", "yellow");
      }'
                        ))
                )
        }

shinyApp(ui = ui, server = server)

如果您想了解有关回调的更多信息,可以查看this