About bind data to grid.
as appery says, when we need flexible layout, we can use grid to implement.
so I add a grid element to my test app, and set one cell.
but when I mapping data to html element, I found that only grid can bind with data array, so the result is only one array element per grid, and next row got another array element ....it is not the "flexible layout", in my thought, if increase the cell element in the grid internal, it's maybe the flexible structure.