使用 RStudio 1.0.136 和 R Shiny 0.14.2,我正在尝试创建一个数据表,该表的每一行都有一个操作按钮,当单击一个按钮时,会出现一个弹出窗口。我的代码目前正在运行,但您不能连续两次单击同一个按钮。我在下面发布了 2 个版本的示例代码:
library(shiny)
library(DT)
library(shinyBS)
shinyApp(
ui <- fluidPage(
DT::dataTableOutput("data"),
uiOutput("modal")
),
server <- function(input, output,session) {
shinyInput <- function(FUN, len, id, ...) {
inputs <- character(len)
for (i in seq_len(len)) {
inputs[i] <- as.character(FUN(paste0(id, i), ...))
}
inputs
}
df <- reactiveValues(data = data.frame(
Assessment = shinyInput(actionButton, 10, 'button_', label = "Assessment", onclick = 'Shiny.onInputChange(\"select_button\", this.id)' ),
Value1 = 1:10,
Value2 = c("A", "B", "C", "D", "E"),
stringsAsFactors = FALSE,
row.names = 1:10
))
output$data <- DT::renderDataTable(
df$data, server = FALSE, escape = FALSE, selection = 'none'
)
observeEvent(input$select_button, {
s <- as.numeric(strsplit(input$select_button, "_")[[1]][2])
output$modal <- renderUI({
tagList(
bsModal(paste('model', s ,sep=''), "Assessment", "select_button", size = "small",
textAreaInput("text", label = h3("Enter Assessment") , value = "", width = "100%", height = "200px", resize = "none"),
actionButton("Enter", "Enter")
))
})
toggleModal(session,paste('model', s ,sep=''), toggle = "Assessment")
})
})
第二个代码是:
library(shiny)
library(DT)
library(shinyBS)
shinyApp(
ui <- fluidPage(
DT::dataTableOutput("data"),
bsModal("modalnew", "Assessment", "select_button", size = "small",
textAreaInput("text", label = h3("Enter Assessment") , value = "", width = "100%", height = "200px", resize = "none"),
actionButton("Enter", "Enter")
)
),
server <- function(input, output,session) {
shinyInput <- function(FUN, len, id, ...) {
inputs <- character(len)
for (i in seq_len(len)) {
inputs[i] <- as.character(FUN(paste0(id, i), ...))
}
inputs
}
df <- reactiveValues(data = data.frame(
Assessment = shinyInput(actionButton, 10, 'button_', label = "Assessment", onclick = 'Shiny.onInputChange(\"select_button\", this.id)' ),
Value1 = 1:10,
Value2 = c("A", "B", "C", "D", "E"),
stringsAsFactors = FALSE,
row.names = 1:10
))
output$data <- DT::renderDataTable(
df$data, server = FALSE, escape = FALSE, selection = 'none'
)
observeEvent(input$select_button, {
s <- as.numeric(strsplit(input$select_button, "_")[[1]][2])
toggleModal(session, "modalnew", toggle = "close")
})
})
在弹出窗口中输入的内容当前无关紧要。任何有关如何允许连续两次单击同一按钮的建议将不胜感激。