问题描述
我在 Vaadin 14 中使用解析器构建了一个网格以从文件中提取,如下所示:
Grid<String[]> grid = new Grid<>();
try {
List<String[]> entries = reader.readAll();
// Assume the first row contains headers
String[] headers = entries.get(0);
for (int i = 0; i < headers.length-1; i++) {
final int columnIndex = i;
String header = headers[i];
String humanReadableHeader = SharedUtil.camelCasetoHumanFriendly(header);
grid.addColumn(str -> str[columnIndex]).setHeader(humanReadableHeader).setSortable(true).setWidth("100px");
}
grid.setItems(entries.subList(1,entries.size()));
我接下来要做的是向每一行添加一个复选框,以返回相应行中数据的可视化。所以我的问题有两个方面:
解决方法
只需添加一个组件列:
Grid<String[]> grid = new Grid<>();
try {
List<String[]> entries = reader.readAll();
// Assume the first row contains headers
String[] headers = entries.get(0);
for (int i = 0; i < headers.length-1; i++) {
final int columnIndex = i;
String header = headers[i];
String humanReadableHeader = SharedUtil.camelCaseToHumanFriendly(header);
grid.addColumn(str -> str[columnIndex]).setHeader(humanReadableHeader).setSortable(true).setWidth("100px");
}
// Here goes your checkbox column
grid.addComponentColumn(item -> {
// Create the checkbox
}).setHeader("<the header>");
grid.setItems(entries.subList(1,entries.size()));