I'm using the datagrid's autoSizeColumn method to adjust the column width according to the content's width. However, if that content is quite wide, a vertical scrollbar won't be displayed until the entire datagrid gets resized by its parent container.
I tried forcing a layout re-do of the datagrid's panel, but that didn't help.
$('#dg').datagrid('getPanel').panel('doLayout');
Also, I noticed that the tree's hover/selection doesn't display correctly when the tree has vertical scrolling and is scrolled to the right.