我知道有一些关于这个问题的帖子,但我不知道为什么我的代码无效。我有一个Shiny的应用程序,我希望包含一个条件侧边栏面板,根据用户当前选择的主面板中的哪个面板显示不同的控件。我认为下面的代码可以工作,但应用程序只显示条件面板1(定义如下)。任何人都可以给我任何建议吗?谢谢。
我的ui.R:
library(shiny)
shinyUI(pageWithSidebar(
# Application title
headerPanel("Spatially Balanced Sampling Tool"),
sidebarPanel(
tags$head(
tags$style(type="text/css", "select { max-width: 175px; }"),
tags$style(type="text/css", "textarea { max-width: 100px; }"),
tags$style(type="text/css", ".jslider { max-width: 120px; }"),
tags$style(type='text/css', ".well { max-width: 200px; }"),
tags$style(type='text/css', ".span4 { max-width: 200px; }")
),
conditionalPanel(condition="input.conditionedPanels == 1",
fileInput('file1', 'Choose .ZIP Shapefile:', multiple=TRUE,
accept=c('binary'))
),
conditionalPanel(condition="input.conditionedPanels == 2",
numericInput("pts", "# of sampling points per stratum:", 50),
numericInput("oversamppts", "# to OVER sample (optional):", 5),
submitButton("Generate Points"),
helpText("WORK DAMMIT")
)),
mainPanel(
tabsetPanel(
tabPanel("Instructions",
includeHTML("instructions.html"),
div(id="linkToMap", tags$a("Click here to see a map of your input data and create points")),
div(id="linkToPoints", tags$a("Click here to see table of created points")),
value=1
),
tabPanel("plot", helpText("Map of input polygons"),
plotOutput("plot"),
p(paste("polygons by strata")),
value=2
),
tabPanel("View Points", helpText("suggested sampling points"),
tableOutput("pointdata"),
HTML("<script>$('#linkToMap').click(function() {
tabs = $('.tabbable .nav.nav-tabs li')
tabs.each(function() {
$(this).removeClass('active')
})
$(tabs[1]).addClass('active')
tabsContents = $('.tabbable .tab-content .tab-pane')
tabsContents.each(function() {
$(this).removeClass('active')
})
$(tabsContents[1]).addClass('active')
$('#plot').trigger('change').trigger('shown')
})</script>
"),
HTML("<script>$('#linkToPoints').click(function() {
tabs = $('.tabbable .nav.nav-tabs li')
tabs.each(function() {
$(this).removeClass('active')
})
$(tabs[2]).addClass('active')
tabsContents = $('.tabbable .tab-content .tab-pane')
tabsContents.each(function() {
$(this).removeClass('active')
})
$(tabsContents[2]).addClass('active')
$('#pointdata').trigger('change').trigger('shown')
})</script>
"),
value=2
),
id = "conditionedPanels"))))
答案 0 :(得分:8)
看起来,conditionalPanel语句正在查找tabPanel的名称。
# This will not work
condition="input.conditionedPanels == 1" #wrong
当我在conditionalPanel
语句中切换条件以测试选项卡的名称时,而不是该值,它可以正常工作。
我挖出了一切无关的东西,让你的UI.R按照预期有条件地工作。您可以将此作为起点,并从此处开始。
library(shiny)
shinyUI(pageWithSidebar(
headerPanel("Spatially Balanced Sampling Tool"),
sidebarPanel(
conditionalPanel(condition="input.conditionedPanels == 'Tab1'",
helpText("TAB 1")
),
conditionalPanel(condition="input.conditionedPanels == 'Tab2'",
helpText("TAB 2 SELECTED")
)
),
mainPanel(
tabsetPanel(
tabPanel("Tab1",
p(paste("Tab 1 text")
)
),
tabPanel("Tab2", helpText("Map of input polygons"),
p(paste("polygons by strata")
)
),
id = "conditionedPanels"
)
)
))