Set filter in child table

I have created a new DocType : ‘Project Daily Progress’ so that users can update their daily work done in this doc type. This doc type has 2 fields - Date and Project and 1 child table associated with it - Child table name is ‘Project Progress Daily Work Done’.

And this is the table structure of child table:

When the user selects a project in new ‘Project Daily Progress’, I want the options he sees in task (in the child table) to be only the tasks associated with the selected Project.

I could not find any help in the forum that involved no coding. Can some one guide me step by step how this thing works ?