renderUI

renderUI(expr, env = parent.frame(), quoted = FALSE, outputArgs = list())

Arguments

expr	An expression that returns a Shiny tag object, HTML, or a list of such objects.
env	The environment in which to evaluate expr.
quoted	Is expr a quoted expression (with quote())? This is useful if you want to save an expression in a variable.
outputArgs	A list of arguments to be passed through to the implicit call to uiOutput when renderUI is used in an interactive R Markdown document.

Description

Experimental feature. Makes a reactive version of a function that generates HTML using the Shiny UI library.

Details

The corresponding HTML output tag should be div and have the CSS class name shiny-html-output (or use uiOutput).

Examples

## Only run examples in interactive R sessions
if (interactive()) {

ui <- fluidPage(
  uiOutput("moreControls")
)

server <- function(input, output) {
  output$moreControls <- renderUI({
    tagList(
      sliderInput("n", "N", 1, 1000, 500),
      textInput("label", "Label")
    )
  })
}
shinyApp(ui, server)
}

See also

conditionalPanel