Why do pie or column chart colors duplicate ?

I have an issue occuring on both pie and column charts. In both cases, i have both column and pie charts with 6 data rows (e.g. 6 pie slices and 6 columns respectively, each row representing a different division within a company. I want each division to have a different pie slice or column bar color. I don't really care which colors each division is represented by, as long as they have unique colors…however when the charts render, they are duplicating colors…for example, if i have a dataset as follows:

 Division         Value

Div 1             100
Div 2             225
Div 3             300
Div 4             350
Div 5             365
Div 6             375

5 of the divisions will have distinct colors (e.g. green, blue, orange, red, yellow)…however one of the divisions will overlap colors…so the result is that two divisions end up with green…and i can't tell them visually apart on the pie or column charts…it's always green that repeats. How can i control this default behavior and have all 6 colors render uniquely. thank you.

You can take a look at:

http://forums.infragistics.com/forums/p/7458/30517.aspx

is there any way to get the webchart control to dynamically choose the colors and not duplicate them (up to some reasonable number) ? or do i need to manually set them…i have a number of charts that regularly go up to 5 or 6 pie slices or bar columns….as i mentioned in my original post, 1 color keeps repeating…is there no default behavior that avoids color duplication ? if need be, i will manually set colors as in your example, however in any given chart, i don't know how many colors will be needed (depends on the dynamic data coming into the chart), so i'd prefer to leverage some sort of built-in feature if possible. thank you.

You can try using some of the other color model styles. For example:

this

.ultraChart1.ColorModel.ModelStyle = ColorModels.PureRandom;