R 闪亮尺码盒

Question

我的问题是我告诉 Shiny 使用所有行（12 列）来打印 c7 框，但它只使用了其中的一半。谁能弄清楚是什么问题？以下是我的代码：

 library(shinydashboard)
 library(shiny)
 library(readr)
 library(rsconnect)
 header=dashboardHeader(title="App")
 sidebar=dashboardSidebar(sidebarMenu(
 menuItem("Stack", tabName = "a", icon = icon("dashboard"))))
 c7=column(12,box(title="Prediction Box",status="warning",solidHeader=FALSE,
            textInput("text", label = h3("Write something :"), value = ""),actionButton("do","Go")))
 body=dashboardBody(tabItems(tabItem(tabName="a",fluidRow(c7))))
 ui <- dashboardPage(header,sidebar,body)

 server <- function(input, output){
 }
shinyApp(ui,server) 

Answer 1

默认情况下，如果您没有指定宽度，box它将被设置为6。看一下?box

例如：

library(shinydashboard)
library(shiny)

header=dashboardHeader(title="App")
sidebar=dashboardSidebar(sidebarMenu(menuItem("Stack", tabName = "a", icon = icon("dashboard"))))

?box
c7=column(12,box(width=12,title="Prediction Box",status="warning",solidHeader=FALSE,
                 textInput("text", label = h3("Write something :"), value = ""),actionButton("do","Go")))


body=dashboardBody(tabItems(tabItem(tabName="a",fluidRow(c7))))
ui <- dashboardPage(header,sidebar,body)

server <- function(input, output){
}
shinyApp(ui,server)