copy cell to from different column using condation

Hello, 

could you help me, I need to copy data from the date and value column from each row into one column only those have value using cell formula that loop until 1st cell the last column is not = date

it should work as follows

if cell in value 1 > 0 then copy date1 and value1 to dateAll and ValueAll else loop to do this for date2 and value2 until no date.