I have a layout with a tabbar in it with a grid inside the tabbar. When the outside layouts size changes the tabbar resizes correctly, but the grid inside the tabbar does not.
Do you use attachGrid method to attach grid into tab ?
It can be done as follows:
var grid = tabbar._cells(layout.dhxWins,tabId).attachGrid();
Here layout is layout object, tabId - id of the tab where grid is placed.
dhtmlxtabbat_wins.js extention should be included to use attachGrid method