I would take a little bit different approach.
1.Vector -> Data management tools -> Join attributes by location
- set your polygon layer (grid layer) as a Base layer and point layer as a Join layer
- set Geometric predicate to Intersects
- For Fields to add section choose Name field (from your point layer)
As a result you will get a layer with as many rows as you have intersecting points with your polygons. At one row you see the information regarding your polygon object + the name of the point object it intersects with (e.g. if grid A1 contains 3 points, grid A1's field info will show up for three rows each time associated with different point name).
- Create new fields for this result layer.
2.1 The numerical field telling you the number of points in each polygon with
count("grid_id", group_by:="grid_id")
2.2 The list of the point layer names including in each grid with
concatenate_unique("point_name", group_by:="grid_id", concatenator:=' ,')
- Delete additional fields and rows to get the desired kind of table
Vector -> Data management tools -> Join attributes by location
- set your polygon layer (grid layer) as a Base layer and point layer as a Join layer
- set Geometric predicate to Intersects
- For Fields to add section choose Name field (from your point layer)
As a result you will get a layer with as many rows as you have intersecting points with your polygons. At one row you see the information regarding your polygon object + the name of the point object it intersects with (e.g. if grid A1 contains 3 points, grid A1's field info will show up for three rows each time associated with different point name).
Create new fields for this result layer.
2.1 The numerical field telling you the number of points in each polygon with
count("grid_id", group_by:="grid_id")2.2 The list of the point layer names including in each grid with
concatenate_unique("point_name", group_by:="grid_id", concatenator:=' ,')Delete additional fields and rows to get the desired kind of table
