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Vaadin 8 Grid with Generic list

Nagaraj RC
5 years ago Mar 13, 2017 3:11pm

Hi i am using Vaadin 8.0.1

I am trying to make Vaadin grid common for all of my DataList
And trying to set the Generic Arraylist of Data to Grid its not showing anything to me.

Here is my Grid code.

public class VegaGrid<T> {

    private Grid<T> grid;
    private T t;
    private ArrayList<T> mParentDataList;

    public ArrayList<T> getParentDataList() {
        return mParentDataList;

    public void setParentDataList(ArrayList<T> pParentDataList) {
        this.mParentDataList = pParentDataList;
        System.out.println("size=" + pParentDataList.size());//its printing the sie as 1001
        try {
            ListDataProvider<T> ldp = new ListDataProvider<>(pParentDataList);
        } catch (Exception e) {

    public VerticalLayout createControls() {
        VerticalLayout v = new VerticalLayout();
        try {
            grid = new Grid<T>();
            grid.getColumns().stream().forEach(column -> column.setHidable(true));
        } catch (Exception e) {
        return v;

And Here i am calling the Grid by paasing Arralist of PersonData

ArrayList<PersonData> personDataList = new ArrayList<PersonData>();
            for (int i = 0; i <= 1000; i++) {
                PersonData p = new PersonData();
                p.setDob(new Date());

VegaGrid<PersonData> vegaGrid = new VegaGrid<>();
 VerticalLayout v=vegaGrid.createControls();
 vegaGrid.setParentDataList(personDataList); // Here i am Passing the ListDAta

I am getting the grid but not the data inside.
here i am attaching the screen shot

Nagaraj RC

Alexander Ley
5 years ago Mar 16, 2017 9:25am
Sangeeth S Kumar
2 years ago Jul 18, 2020 4:18pm