File Upload Control
Create a file upload control that can be used to upload one or more files.
fileInput( inputId, label, multiple = FALSE, accept = NULL, width = NULL, buttonLabel = "Browse...", placeholder = "No file selected" )
inputId |
The |
label |
Display label for the control, or |
multiple |
Whether the user should be allowed to select and upload multiple files at once. Does not work on older browsers, including Internet Explorer 9 and earlier. |
accept |
A character vector of "unique file type specifiers" which gives the browser a hint as to the type of file the server expects. Many browsers use this prevent the user from selecting an invalid file. A unique file type specifier can be:
|
width |
The width of the input, e.g. |
buttonLabel |
The label used on the button. Can be text or an HTML tag object. |
placeholder |
The text to show before a file has been uploaded. |
Whenever a file upload completes, the corresponding input variable is set
to a dataframe. See the Server value section.
A data.frame that contains one row for each selected file, and following columns:
nameThe filename provided by the web browser. This is
not the path to read to get at the actual data that was uploaded
(see
datapath column).
sizeThe size of the uploaded data, in bytes.
typeThe MIME type reported by the browser (for example,
text/plain), or empty string if the browser didn't know.
datapathThe path to a temp file that contains the data that was uploaded. This file may be deleted if the user performs another upload operation.
Other input elements:
actionButton(),
checkboxGroupInput(),
checkboxInput(),
dateInput(),
dateRangeInput(),
numericInput(),
passwordInput(),
radioButtons(),
selectInput(),
sliderInput(),
submitButton(),
textAreaInput(),
textInput(),
varSelectInput()
## Only run examples in interactive R sessions
if (interactive()) {
ui <- fluidPage(
sidebarLayout(
sidebarPanel(
fileInput("file1", "Choose CSV File", accept = ".csv"),
checkboxInput("header", "Header", TRUE)
),
mainPanel(
tableOutput("contents")
)
)
)
server <- function(input, output) {
output$contents <- renderTable({
file <- input$file1
ext <- tools::file_ext(file$datapath)
req(file)
validate(need(ext == "csv", "Please upload a csv file"))
read.csv(file$datapath, header = input$header)
})
}
shinyApp(ui, server)
}Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.