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92 lines
3.5 KiB
R
92 lines
3.5 KiB
R
% Generated by roxygen2 (4.1.1): do not edit by hand
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% Please edit documentation in R/input-select.R
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\name{selectInput}
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\alias{selectInput}
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\alias{selectizeInput}
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\title{Create a select list input control}
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\usage{
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selectInput(inputId, label, choices, selected = NULL, multiple = FALSE,
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selectize = TRUE, width = NULL, size = NULL)
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selectizeInput(inputId, ..., options = NULL, width = NULL)
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}
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\arguments{
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\item{inputId}{The \code{input} slot that will be used to access the value.}
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\item{label}{Display label for the control, or \code{NULL} for no label.}
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\item{choices}{List of values to select from. If elements of the list are
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named then that name rather than the value is displayed to the user.}
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\item{selected}{The initially selected value (or multiple values if
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\code{multiple = TRUE}). If not specified then defaults to the first value
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for single-select lists and no values for multiple select lists.}
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\item{multiple}{Is selection of multiple items allowed?}
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\item{selectize}{Whether to use \pkg{selectize.js} or not.}
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\item{width}{The width of the input, e.g. \code{'400px'}, or \code{'100\%'};
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see \code{\link{validateCssUnit}}.}
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\item{size}{Number of items to show in the selection box; a larger number
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will result in a taller box. Not compatible with \code{selectize=TRUE}.
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Normally, when \code{multiple=FALSE}, a select input will be a drop-down
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list, but when \code{size} is set, it will be a box instead.}
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\item{...}{Arguments passed to \code{selectInput()}.}
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\item{options}{A list of options. See the documentation of \pkg{selectize.js}
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for possible options (character option values inside \code{\link{I}()} will
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be treated as literal JavaScript code; see \code{\link{renderDataTable}()}
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for details).}
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}
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\value{
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A select list control that can be added to a UI definition.
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}
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\description{
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Create a select list that can be used to choose a single or multiple items
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from a list of values.
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}
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\details{
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By default, \code{selectInput()} and \code{selectizeInput()} use the
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JavaScript library \pkg{selectize.js}
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(\url{https://github.com/brianreavis/selectize.js}) to instead of the basic
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select input element. To use the standard HTML select input element, use
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\code{selectInput()} with \code{selectize=FALSE}.
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In selectize mode, if the first element in \code{choices} has a value of
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\code{""}, its name will be treated as a placeholder prompt. For example:
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\code{selectInput("letter", "Letter", c("Choose one" = "", LETTERS))}
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}
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\note{
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The selectize input created from \code{selectizeInput()} allows
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deletion of the selected option even in a single select input, which will
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return an empty string as its value. This is the default behavior of
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\pkg{selectize.js}. However, the selectize input created from
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\code{selectInput(..., selectize = TRUE)} will ignore the empty string
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value when it is a single choice input and the empty string is not in the
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\code{choices} argument. This is to keep compatibility with
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\code{selectInput(..., selectize = FALSE)}.
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}
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\examples{
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selectInput("variable", "Variable:",
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c("Cylinders" = "cyl",
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"Transmission" = "am",
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"Gears" = "gear"))
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}
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\seealso{
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\code{\link{updateSelectInput}}
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Other input.elements: \code{\link{actionButton}},
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\code{\link{actionLink}}; \code{\link{animationOptions}},
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\code{\link{sliderInput}};
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\code{\link{checkboxGroupInput}};
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\code{\link{checkboxInput}}; \code{\link{dateInput}};
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\code{\link{dateRangeInput}}; \code{\link{fileInput}};
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\code{\link{numericInput}}; \code{\link{passwordInput}};
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\code{\link{radioButtons}}; \code{\link{submitButton}};
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\code{\link{textInput}}
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}
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