this.columns = new String[rows][2];
for (int i = 0; i < rows; i++) {
System.arraycopy(columns[i], 0, this.columns[i], 0, 2);
}
table = new RightClickTable();
initWidget(table);
table.setCellSpacing(0);
table.setCellPadding(0);
table.setStylePrimaryName("data-table");