oops, forgot to take out a line...
>In that case, you'll have to loop through the columns and do it
>(and are you sure you want the back color to be black, or is it the DynamicForeColor you want?)

** grid.Init()
Local lcSource, loCol
For Each loCol in this.Columns
  loCol.DynamicBackColor="IIf("+loCol.ControlSource+"<0, RGB(255,0,0), RGB(0,0,0))"
Next

>>Sorry Metin, this can't work.
>>The grid has 12 columns for the 12 months of the year. VALUE is not a field. Each coloumn in the grid represents a diffrent field, so when I run it an error message appears saying: "Expression is invalid. Use a valid expression for DYNAMICBACKCOLOR"
>>Maybe I didn't make myself clear enough.