We came across a requirement to build a scrollable data table using Google Web Toolkit (GWT) because we had a limited space, but a growing table depending on the search criteria. As anyone can guess, having a scrollable table would be the best option. For that we used two components rather than one; com.google.gwt.user.client.ui.ScrollPanel and com.google.gwt.user.client.ui.FlexTable. The data table was added inside the Scrollable Panel.
For clarification, we have added the code below.
ScrollPanel scrollPanel = new ScrollPanel();
FlexTable dataTable = new FlexTable();
dataTable.setWidth("100%");
scrollPanel.add(dataTable);
scrollPanel.setSize("300", "200");
//add data to table
....
For setting width and height; it's advised to use css rules, but for ease of understanding we have shown some hard coded values here.