Count rows in table visual with Field Parameters

Hi tannhq, gp10 , algunn14 ,

I am happy to inform that I could implement the solution for deriving countrows in table visual/Card visual with field parameters. It can be used in following cases -
1. Countrows based on User's selection
2. Field parameter has columns from multiple tables (More than 1)

If my field parameter(Attribute selection list) has 7 columns,
1. Fact - V_fct_view (Column1,Column5,Column6,Column7)
2. V_dim1_view (Column2)
3. V_dim2_view (Column3,Column4)

Fact is joined with both dimensions.

Field Parameter -
Attribute selection list = {
("Column1", NAMEOF(V_fct_view[Column1]), 0),
("Column2", NAMEOF(V_dim1_view[Column2]), 1),
("Column3", NAMEOF(V_dim2_view[Column3]), 2),
("Column4", NAMEOF(V_dim2_view[Column4]), 3),
("Column5", NAMEOF(V_fct_view[Column5]), 4),
("Column6", NAMEOF(V_fct_view[Column6]), 5),
("Column7", NAMEOF(V_fct_view[Column7]), 6)}

Formula to get Countrows -
Countrows_Custom =
VAR cr = DISTINCT('Attribute selection list'[Attribute selection list Fields])
var tbl = ADDCOLUMNS(V_fct_view,
"C1", if(NAMEOF(V_fct_view[Column1]) in cr, V_fct_view[Column1]),
"C2", if(NAMEOF(V_dim1_view[Column2]) in cr, RELATED(V_dim1_view[Column2])),
"C3", if(NAMEOF(V_dim2_view[Column3]) in cr, RELATED(V_dim2_view[Column3])),
"C4", if(NAMEOF(V_dim2_view[Column4]) in cr, RELATED(V_dim2_view[Column4])),
"C5", if(NAMEOF(V_fct_view[Column5]) in cr, V_fct_view[Column5]),
"C6", if(NAMEOF(V_fct_view[Column6]) in cr, V_fct_view[Column6]),
"C7", if(NAMEOF(V_fct_view[Column7]) in cr, V_fct_view[Column7])
)
RETURN COUNTROWS( SUMMARIZE(tbl,[C1], [C2], [C3], [C4], [C5], [C6], [C7]))

Note - You need to use Related function with dimension columns. The first parameter of Addcolumns function should be Fact.

Please let me know if you need additional details of the function used in the solution or logic applied to derive the solution.