I am blocked on trying to work with Layer Properties Rule-based Expressions.
For a simple example in expression string builder: I have a column field named HOUSE. A list of values within that field show SMALL, MEDIUM, LARGE. What rule expression would I use to allow different colors for each of the values?
I tried this:
CASE WHEN "HOUSE" = 'SMALL' THEN color_ rgb(255,0,0) END
but got this message:
Parser Error: syntax error, unexpected COLUMN_REF, expecting WHEN or ELSE or END Eval Error: No root node! Parsing failed?
Can someone please reply with a correct expression I can use?