Multiple Rows in each "row" of datagrid

[JuanitaC]

I am trying to layout my datagrid so that the details of the record span 4 columns of the rest of the data.

So I want to have:

column | column | column | column
span column details written out across here

column | column | column | column
span column details written out across here

I have read the related thread: thread855-504869 here, and have used the nested table idea, which works fine - EXCEPT: I can't hard code the width of my 4 columns, I have to use % values. So if the first column in Row 1 is a longer value, it adjusts the sizes of the remaining three columns in that row. Then the columns don't line up with the remaining rows (which just looks bad). I hope that makes sense to everyone.

Any ideas how I could acheive my layout and still make the columns in all rows line up?

Thanks in advance,
Stacey