That is why you are going to use your row and column properties to figure out where the data is coming from.  If the bar corresponds to row 0, column 0, you know to compare it to the value in row 0, column 1.  These row and column properties are located on the element that is passed into the arguments for the chartdrawitem event.

For your 2nd question regarding the error, the second "ChartColors" should not be there.

Thank you for the reply Sung Kim! I am already doing what you suggested with the box primitive. But the deal is I cannot compare the data value against a number. I have to compare one datavalue against the other. for eg. datavalue1 is less than datavalue 2 then....code Also, this piece of code throws me an error...type color is not defined. Dim ChartColors() As Color ChartColors = New Color() {Color.Red, Color.limegreen} chart.ColorModel.CustomPalette = ChartColors Any suggestions on the same will be appreciated. thanks P.S.: I need to know how to make the Color work, I think I can manage the primitive part.