r-右滚动时修复闪亮数据表中的列不起作用

Question

在启用ScrollX的情况下向右滚动时，我只是试图保持最左边的列固定，但无法使其工作。知道我需要做什么不同吗？

library(shiny)
library(DT)
ui <- fluidPage(
fluidRow(mainPanel(DT::dataTableOutput('mtcars'), width = 12))
)
server <- server <- function(input, output, session) {
output$mtcars <- DT::renderDataTable({
mtcars %>%
DT::datatable(
selection = 'none', rownames = '', filter = 'none',
options = list(
paging = TRUE, searching = TRUE, info = FALSE,
sort = TRUE, scrollX = TRUE, fixedColumns = list(leftColumns = 1)
)
)
})
}
shinyApp(ui = ui, server = server)

此处的版本信息：

> packageVersion('DT')
[1] ‘0.4.16’
> packageVersion('shiny')
[1] ‘1.1.0’
> version
_                           
platform       x86_64-w64-mingw32          
arch           x86_64                      
os             mingw32                     
system         x86_64, mingw32             
status                                     
major          3                           
minor          3.1                         
year           2016                        
month          06                          
day            21                          
svn rev        70800                       
language       R                           
version.string R version 3.3.1 (2016-06-21)
nickname       Bug in Your Hair   

Answer 1

两个问题：

• 您需要扩展FixedColumns；

• 第一列实际上是leftColumns = 2，而不是leftColumns = 1(我想这是用于行名的(。

---

mtcars %>%
DT::datatable(
selection = 'none', rownames = '', filter = 'none',
extensions = "FixedColumns",
options = list(
paging = TRUE, searching = TRUE, info = FALSE,
sort = TRUE, scrollX = TRUE, fixedColumns = list(leftColumns = 2)
)
)

Answer 2

Angelo询问如何同时拥有fixedColumns和Buttons。以下内容对我有效。

library(tidyverse)
library(DT)
mtcars %>%
DT::datatable(
selection = 'none', rownames = '', filter = 'none',
extensions = c('Buttons','FixedColumns'),
options = list(
dom = 'Bfrtip',
buttons = c('copy', 'csv', 'excel', 'pdf', 'print'),
paging = TRUE, searching = TRUE, info = FALSE,
sort = TRUE, scrollX = TRUE, fixedColumns = list(leftColumns = 2)
)
)