R-Shiny Modal Form












0














Good day developers. I am having a bit of an issue dealing with R Shiny here. I have a webpage where I can click on a button and open a modal. The modal is a form that takes inputs. I want to use these modal inputs in a string and print that variable. I always get the following errors:




Operation not allowed without an active reactive context. (You tried
to do something that can only be done from inside a reactive
expression or observer.)




and sometimes this when I remove reactivity:




Warning: Error in as.vector: cannot coerce type 'closure' to vector of
type 'character'




      # Shiny App: Server
tab_tab1_server <- function(input, output, session) {

# Defining a modal containing input boxes
tab1_modal <- function(failed = FALSE) {
modalDialog(
title = "Tab 1", size = "l",

fluidRow(
box(title = "Names", background = "green", collapsible = TRUE, width = 12, collapsed = TRUE,
splitLayout(
textInput(inputId = "GRP_ID",label = "Group ID", value = "1337"),

fluidRow(
box(title = "Names", background = "green", collapsible = TRUE, width = 12, collapsed = TRUE,
splitLayout(
textInput(inputId = "GRP_ID",label = "Object ID", value = "1337")
,textInput(inputId = "GRP_DESC",label = "Object Description", value = "Ahmads Test Entry"))

))
)}
}

# button to show modal
observeEvent(input$add_btn, {
showModal(tab1_modal())})

# Variable to contain entire script including text from input variables
result<-sprintf("This is your input", GRP_ID,GRP_DESC)

# Button to print variable in console
observeEvent(input$result_btn, {
print(paste0("Showing result:",result ))
})


Please tell me how to use the inputs in the modal for another action.










share|improve this question



























    0














    Good day developers. I am having a bit of an issue dealing with R Shiny here. I have a webpage where I can click on a button and open a modal. The modal is a form that takes inputs. I want to use these modal inputs in a string and print that variable. I always get the following errors:




    Operation not allowed without an active reactive context. (You tried
    to do something that can only be done from inside a reactive
    expression or observer.)




    and sometimes this when I remove reactivity:




    Warning: Error in as.vector: cannot coerce type 'closure' to vector of
    type 'character'




          # Shiny App: Server
    tab_tab1_server <- function(input, output, session) {

    # Defining a modal containing input boxes
    tab1_modal <- function(failed = FALSE) {
    modalDialog(
    title = "Tab 1", size = "l",

    fluidRow(
    box(title = "Names", background = "green", collapsible = TRUE, width = 12, collapsed = TRUE,
    splitLayout(
    textInput(inputId = "GRP_ID",label = "Group ID", value = "1337"),

    fluidRow(
    box(title = "Names", background = "green", collapsible = TRUE, width = 12, collapsed = TRUE,
    splitLayout(
    textInput(inputId = "GRP_ID",label = "Object ID", value = "1337")
    ,textInput(inputId = "GRP_DESC",label = "Object Description", value = "Ahmads Test Entry"))

    ))
    )}
    }

    # button to show modal
    observeEvent(input$add_btn, {
    showModal(tab1_modal())})

    # Variable to contain entire script including text from input variables
    result<-sprintf("This is your input", GRP_ID,GRP_DESC)

    # Button to print variable in console
    observeEvent(input$result_btn, {
    print(paste0("Showing result:",result ))
    })


    Please tell me how to use the inputs in the modal for another action.










    share|improve this question

























      0












      0








      0







      Good day developers. I am having a bit of an issue dealing with R Shiny here. I have a webpage where I can click on a button and open a modal. The modal is a form that takes inputs. I want to use these modal inputs in a string and print that variable. I always get the following errors:




      Operation not allowed without an active reactive context. (You tried
      to do something that can only be done from inside a reactive
      expression or observer.)




      and sometimes this when I remove reactivity:




      Warning: Error in as.vector: cannot coerce type 'closure' to vector of
      type 'character'




            # Shiny App: Server
      tab_tab1_server <- function(input, output, session) {

      # Defining a modal containing input boxes
      tab1_modal <- function(failed = FALSE) {
      modalDialog(
      title = "Tab 1", size = "l",

      fluidRow(
      box(title = "Names", background = "green", collapsible = TRUE, width = 12, collapsed = TRUE,
      splitLayout(
      textInput(inputId = "GRP_ID",label = "Group ID", value = "1337"),

      fluidRow(
      box(title = "Names", background = "green", collapsible = TRUE, width = 12, collapsed = TRUE,
      splitLayout(
      textInput(inputId = "GRP_ID",label = "Object ID", value = "1337")
      ,textInput(inputId = "GRP_DESC",label = "Object Description", value = "Ahmads Test Entry"))

      ))
      )}
      }

      # button to show modal
      observeEvent(input$add_btn, {
      showModal(tab1_modal())})

      # Variable to contain entire script including text from input variables
      result<-sprintf("This is your input", GRP_ID,GRP_DESC)

      # Button to print variable in console
      observeEvent(input$result_btn, {
      print(paste0("Showing result:",result ))
      })


      Please tell me how to use the inputs in the modal for another action.










      share|improve this question













      Good day developers. I am having a bit of an issue dealing with R Shiny here. I have a webpage where I can click on a button and open a modal. The modal is a form that takes inputs. I want to use these modal inputs in a string and print that variable. I always get the following errors:




      Operation not allowed without an active reactive context. (You tried
      to do something that can only be done from inside a reactive
      expression or observer.)




      and sometimes this when I remove reactivity:




      Warning: Error in as.vector: cannot coerce type 'closure' to vector of
      type 'character'




            # Shiny App: Server
      tab_tab1_server <- function(input, output, session) {

      # Defining a modal containing input boxes
      tab1_modal <- function(failed = FALSE) {
      modalDialog(
      title = "Tab 1", size = "l",

      fluidRow(
      box(title = "Names", background = "green", collapsible = TRUE, width = 12, collapsed = TRUE,
      splitLayout(
      textInput(inputId = "GRP_ID",label = "Group ID", value = "1337"),

      fluidRow(
      box(title = "Names", background = "green", collapsible = TRUE, width = 12, collapsed = TRUE,
      splitLayout(
      textInput(inputId = "GRP_ID",label = "Object ID", value = "1337")
      ,textInput(inputId = "GRP_DESC",label = "Object Description", value = "Ahmads Test Entry"))

      ))
      )}
      }

      # button to show modal
      observeEvent(input$add_btn, {
      showModal(tab1_modal())})

      # Variable to contain entire script including text from input variables
      result<-sprintf("This is your input", GRP_ID,GRP_DESC)

      # Button to print variable in console
      observeEvent(input$result_btn, {
      print(paste0("Showing result:",result ))
      })


      Please tell me how to use the inputs in the modal for another action.







      r shiny






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 13 '18 at 5:17









      Ahmad M.

      4910




      4910
























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