Ok, so in the form validator script, make a variable and increment the variable each time it finds a value that is invalid, if countif, counta, or count wont work.
I am confused by your work flow, as you state that the form validator is validating the cell value, but in the end you want to know the number of blanks and invalids. The blanks can be trapped by count, and the form validator knows if the value is good or not. So take the count of invalids the form validator finds, and add it to the count value of the blanks!!!! It is probably best to just have the validator look for blanks, too.
I have a column called Price. The column can allow only Numeric. THis is being done in Excel validation and it works when the user is entering the value manually.
suppose, user copy paste the data, the validation is over-ruled and column takes those value which is wrong. In order to validate, I am running macro at form level, where all the cell data is validated.
Now i want to show the count of empty cells and the number of invalid data being entered in the column