这里有一个方法。用户选择一个子表的索引,然后选择该子表的某一列的索引,然后单击按钮隐藏/显示该列。其余代码取自OP中链接的讨论;特别是带有复选框的内容,与当前问题无关。
library(DT)
library(shiny)
shinyCheckbox <- function(id, values) {
inputs <- character(length(values))
for(i in seq_along(inputs)) {
inputs[i] <-
as.character(
checkboxInput(paste0(id, i), label = NULL, value = values[i], width = "20px")
)
}
inputs
}
NestedData <- function(dat, children){
stopifnot(length(children) == nrow(dat))
g <- function(d){
if(is.data.frame(d)){
purrr::transpose(d)
}else{
purrr::transpose(NestedData(d[[1]], children = d$children))
}
}
subdats <- lapply(children, g)
oplus <- ifelse(lengths(subdats), "⊕", "")
cbind(" " = oplus, dat, "_details" = I(subdats),
stringsAsFactors = FALSE)
}
dat <- data.frame(
Sr = c(1.5, 2.3),
Description = c("A - B", "X - Y")
)
## details of row 1
subdat1 <- data.frame(
Chromosome = c("chr18","chr4"),
SNP = c("rs2","rs3"),
YN = c(TRUE, FALSE),
stringsAsFactors = FALSE
)
subdat1$check <- shinyCheckbox("check", subdat1$YN)
## details of row 2
subdat2 <- data.frame(
Chromosome = c("chr19","chr20"),
SNP = c("rs3","rs4"),
YN = c(TRUE, FALSE),
stringsAsFactors = FALSE
)
subdat2$check <- shinyCheckbox("check", subdat2$YN)
Dat <- NestedData(dat, list(subdat1, subdat2))
## whether to show row names
rowNames = FALSE
colIdx <- as.integer(rowNames)
## the callback
parentRows <- which(Dat[,1] != "")
callback <- JS(
sprintf("var parentRows = [%s];", toString(parentRows-1)),
sprintf("var j0 = %d;", colIdx),
"var nrows = table.rows().count();",
"for(let i = 0; i < nrows; ++i){",
" var $cell = table.cell(i,j0).nodes().to$();",
" if(parentRows.indexOf(i) > -1){",
" $cell.css({cursor: 'pointer'});",
" }else{",
" $cell.removeClass('details-control');",
" }",
"}",
"",
"// --- make the table header of the nested table --- //",
"var formatHeader = function(d, childId){",
" if(d !== null){",
" var html = ",
" '<table class=\"display compact hover\" ' + ",
" 'style=\"padding-left: 30px;\" id=\"' + childId + ",
" '\"><thead><tr>';",
" var data = d[d.length-1] || d._details;",
" for(let key in data[0]){",
" html += '<th>' + key + '</th>';",
" }",
" html += '</tr></thead></table>'",
" return html;",
" } else {",
" return '';",
" }",
"};",
"",
"// --- row callback to style rows of child tables --- //",
"var rowCallback = function(row, dat, displayNum, index){",
" if($(row).hasClass('odd')){",
" $(row).css('background-color', 'papayawhip');",
" $(row).hover(function(){",
" $(this).css('background-color', '#E6FF99');",
" }, function(){",
" $(this).css('background-color', 'papayawhip');",
" });",
" } else {",
" $(row).css('background-color', 'lemonchiffon');",
" $(row).hover(function(){",
" $(this).css('background-color', '#DDFF75');",
" }, function(){",
" $(this).css('background-color', 'lemonchiffon');",
" });",
" }",
"};",
"",
"// --- header callback to style header of child tables --- //",
"var headerCallback = function(thead, data, start, end, display){",
" $('th', thead).css({",
" 'border-top': '3px solid indigo',",
" 'color': 'indigo',",
" 'background-color': '#fadadd'",
" });",
"};",
"",
"// --- make the datatable --- //",
"var formatDatatable = function(d, childId){",
" var data = d[d.length-1] || d._details;",
" var colNames = Object.keys(data[0]);",
" var columns = colNames.map(function(x){",
" return {data: x.replace(/\\./g, '\\\\\\.'), title: x};",
" });",
" var id = 'table#' + childId;",
" var subtable;",
" if(colNames.indexOf('_details') === -1){",
" subtable = $(id).DataTable({",
" 'data': data,",
" 'columns': columns,",
" 'autoWidth': true,",
" 'deferRender': true,",
" 'info': false,",
" 'lengthChange': false,",
" 'ordering': data.length > 1,",
" 'order': [],",
" 'paging': false,",
" 'scrollX': false,",
" 'scrollY': false,",
" 'searching': false,",
" 'sortClasses': false,",
" 'rowCallback': rowCallback,",
" 'headerCallback': headerCallback,",
" 'columnDefs': [{targets: '_all', className: 'dt-center'}]",
" });",
" } else {",
" subtable = $(id).DataTable({",
" 'data': data,",
" 'columns': columns,",
" 'autoWidth': true,",
" 'deferRender': true,",
" 'info': false,",
" 'lengthChange': false,",
" 'ordering': data.length > 1,",
" 'order': [],",
" 'paging': false,",
" 'scrollX': false,",
" 'scrollY': false,",
" 'searching': false,",
" 'sortClasses': false,",
" 'rowCallback': rowCallback,",
" 'headerCallback': headerCallback,",
" 'columnDefs': [",
" {targets: -1, visible: false},",
" {targets: 0, orderable: false, className: 'details-control'},",
" {targets: '_all', className: 'dt-center'}",
" ]",
" }).column(0).nodes().to$().css({cursor: 'pointer'});",
" }", # THIS IS THE CODE I ADDED TO DEAL WITH THE CHECKBOXES:
" $(id).on('click', '[id^=check]', function(){",
" var id = this.getAttribute('id');",
" var i = parseInt(/check(\\d+)/.exec(id)[1]);",
" var value = $(this).prop('checked');",
" subtable.cell(i-1, 2).data(value).draw();",
" Shiny.setInputValue('update', {child: childId, row: i, value: value});",
" });",
"};",
"",
"// --- display the child table on click --- //",
"// array to store id's of already created child tables",
"var children = [];",
"table.on('click', 'td.details-control', function(){",
" var tbl = $(this).closest('table'),",
" tblId = tbl.attr('id'),",
" td = $(this),",
" row = $(tbl).DataTable().row(td.closest('tr')),",
" rowIdx = row.index();",
" if(row.child.isShown()){",
" row.child.hide();",
" td.html('⊕');",
" } else {",
" var childId = tblId + '-child-' + rowIdx;",
" if(children.indexOf(childId) === -1){",
" // this child has not been created yet",
" children.push(childId);",
" row.child(formatHeader(row.data(), childId)).show();",
" td.html('⊖');",
" formatDatatable(row.data(), childId, rowIdx);",
" }else{",
" // this child has already been created",
" row.child(true);",
" td.html('⊖');",
" }",
" }",
"});")
js <- paste(
'var i = $("#child").val() - 1;',
'var tbl = $("#DataTables_Table_0-child-" + i).DataTable();',
'var col = tbl.column($("#column").val() - 1);',
'var visible = col.visible();',
'col.visible(!visible);'
)
ui <- fluidPage(
br(),
splitLayout(
numericInput("child", "Child table", value = 1, min = 1, step = 1),
numericInput("column", "Column", value = 1, min = 1, step = 1),
actionButton(
"hs", "Hide/show this column",
onclick = js
)
),
br(),
actionButton("print", "Print 'YN' columns of child tables"),
br(),
DTOutput("dtable")
)
server <- function(input, output, session) {
output[["dtable"]] <- renderDT({
datatable(
Dat,
callback = callback, rownames = rowNames, escape = -colIdx-1,
selection = "none",
options = list(
paging = FALSE,
searching = FALSE,
columnDefs = list(
list(
visible = FALSE,
targets = ncol(Dat)-1+colIdx
),
list(
orderable = FALSE,
className = "details-control",
targets = colIdx
),
list(
className = "dt-center",
targets = "_all"
)
)
)
)
})
observeEvent(input[["update"]], {
print(input$update)
child <-
stringr::str_extract(input[["update"]][["child"]], "\\d+$")
row <- as.integer(input[["update"]][["row"]])
value <- input[["update"]][["value"]]
if(child == "0") {
subdat1[row, "YN"] <<- value
} else if(child == "1") {
subdat2[row, "YN"] <<- value
}
})
observeEvent(input[["print"]], {
print(subdat1$YN)
print(subdat2$YN)
})
}
shinyApp(ui, server)