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Name a table row, an uploaded file or a tree node for a method

Source: R/el_call.R
el_table_row.Rd

Element's table methods take the row object itself – toggleRowSelection(row), setCurrentRow(row), toggleRowExpansion(row) – and compare it by identity, so a copy sent from R would match nothing. Likewise the upload's abort(file) and handleRemove(file), and a virtualized tree's expandNode(node) and collapseNode(node). These stand for the object instead, and the page puts the real one in its place before the method runs.

Usage

el_table_row(index)

el_upload_file(name)

el_tree_node(key)

Arguments

index

A row's number, 1-based, as a table's input$<id>_selection_rows reports them.

name

A file's name, as it shows in the upload's list.

key

A node's key: the field node_key names, or the tree's props$value.

Value

A reference, for call_el()'s args.

Examples

if (interactive()) {
  # inside a server function: select the third row, then make it current
  call_el(session, "tbl", "toggleRowSelection", list(el_table_row(3), TRUE))
  call_el(session, "tbl", "setCurrentRow", list(el_table_row(3)))
  # stop one file
  call_el(session, "docs", "abort", list(el_upload_file("big.csv")))
  # open a node of a virtualized tree
  call_el(session, "files", "expandNode", list(el_tree_node("src")))
}