Should not checked checkboxes bring all results?
Considering I have a filter dialog composed by checkboxes
I have a "select all" checkbox above the other checkboxes.
When te user comes to the results page, it sees all the results, besides of filters.
My two questions are:
Should the user really see all the results? Or a prefiltered query?
If it really should see all the results, should be the checkboxes all checked or not checked, even when the results are not filtered? I'm concerned about the confusion of the user when it gets all the results but no checkbox checked.