EVOLUTION-MANAGER
Edit File: updateNumericInput.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Change the value of a number input on the client</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="R.css" /> </head><body> <table width="100%" summary="page for updateNumericInput {shiny}"><tr><td>updateNumericInput {shiny}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Change the value of a number input on the client</h2> <h3>Description</h3> <p>Change the value of a number input on the client </p> <h3>Usage</h3> <pre> updateNumericInput( session, inputId, label = NULL, value = NULL, min = NULL, max = NULL, step = NULL ) </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>session</code></td> <td> <p>The <code>session</code> object passed to function given to <code>shinyServer</code>.</p> </td></tr> <tr valign="top"><td><code>inputId</code></td> <td> <p>The id of the input object.</p> </td></tr> <tr valign="top"><td><code>label</code></td> <td> <p>The label to set for the input object.</p> </td></tr> <tr valign="top"><td><code>value</code></td> <td> <p>The value to set for the input object.</p> </td></tr> <tr valign="top"><td><code>min</code></td> <td> <p>Minimum value.</p> </td></tr> <tr valign="top"><td><code>max</code></td> <td> <p>Maximum value.</p> </td></tr> <tr valign="top"><td><code>step</code></td> <td> <p>Step size.</p> </td></tr> </table> <h3>Details</h3> <p>The input updater functions send a message to the client, telling it to change the settings of an input object. The messages are collected and sent after all the observers (including outputs) have finished running. </p> <p>The syntax of these functions is similar to the functions that created the inputs in the first place. For example, <code><a href="numericInput.html">numericInput</a>()</code> and <code>updateNumericInput()</code> take a similar set of arguments. </p> <p>Any arguments with NULL values will be ignored; they will not result in any changes to the input object on the client. </p> <p>For <code><a href="radioButtons.html">radioButtons</a>()</code>, <code><a href="checkboxGroupInput.html">checkboxGroupInput</a>()</code> and <code><a href="selectInput.html">selectInput</a>()</code>, the set of choices can be cleared by using <code>choices=character(0)</code>. Similarly, for these inputs, the selected item can be cleared by using <code>selected=character(0)</code>. </p> <h3>See Also</h3> <p><code><a href="numericInput.html">numericInput()</a></code> </p> <h3>Examples</h3> <pre> ## Only run examples in interactive R sessions if (interactive()) { ui <- fluidPage( sliderInput("controller", "Controller", 0, 20, 10), numericInput("inNumber", "Input number", 0), numericInput("inNumber2", "Input number 2", 0) ) server <- function(input, output, session) { observeEvent(input$controller, { # We'll use the input$controller variable multiple times, so save it as x # for convenience. x <- input$controller updateNumericInput(session, "inNumber", value = x) updateNumericInput(session, "inNumber2", label = paste("Number label ", x), value = x, min = x-10, max = x+10, step = 5) }) } shinyApp(ui, server) } </pre> <hr /><div style="text-align: center;">[Package <em>shiny</em> version 1.5.0 <a href="00Index.html">Index</a>]</div> </body></html>