Guide on altering the background color of dynamically generated textboxes in R Shiny

textInput(paste0("inp1-", wid),label = NULL,value = record$Current_week)

This code was used to dynamically generate text input boxes, where the id for each box is determined by a number called wid.

I attempted to change the background color using the following CSS format, but it did not have the desired effect.

tags$head(tags$style(HTML('#',paste0("inp1-", wid),'{background-color:#f1c232;}')))

If you have any suggestions on how to solve this issue, please let me know.

Answer №1

For an illustration of a scenario where the input is not generated dynamically, you can refer to this link. In your particular situation, you may implement the following approach:

library(shiny)

wid=2

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


server <- function(input, output) {

output$my_ui <- renderUI({
tagList(
textInput(paste0("inp1-", wid),label = NULL,value = 0),
tags$style(paste0("#inp1-", wid,"{background-color:#ff0000;}"))
)
})
}

# Launch the application 
shinyApp(ui = ui, server = server)

I hope this explanation is helpful!

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