Filter in grid

sorry for my English :slight_smile:
I’m working with dhtmlx grid.
When I load the data into the grid they are filtering (one of fields is tree(grid.setColTypes(tree)). Is set to filter grid.setFiltrationLevel (-2)(because i need filtering by parent row), then the child elements are not displayed. What i must do that child are displayed?

Please, try to use:

grid.setFiltrationLevel (-2,true)

instead of:

grid.setFiltrationLevel (-2)

try to use grid.setFiltrationLevel (-2,true), but now console show error - cant read id of null (because creating object with parent tree row’s, where parent for these rows - is null)

Unfortunately the issue cannot be reconstructed locally.
Please, provide any kind of sample of your code to reconstruct the issue.