Hi Vipul,

The automatic palette has 8 colors, so if you don't want repeating colors you have to set the PaletteSteps property to 8 or less. If you need more colors you can define a custom palette.

Best Regards,
Milen

Hello,

Dim surface3D As NGridSurfaceSeries = CType(chart.Series.Add(SeriesType.GridSurface), NGridSurfaceSeries)

        surface3D.Name = "surface3D"

        surface3D.PositionValue = 2.0

        surface3D.Legend.Mode = SeriesLegendMode.SeriesLogic

        surface3D.Legend.TextStyle.FontStyle.EmSize = New NLength(8, NGraphicsUnit.Point)

        surface3D.FillMode = SurfaceFillMode.Zone

        surface3D.FrameMode = SurfaceFrameMode.None

        surface3D.DrawFlat = False

        surface3D.Data.SetGridSize(41, 41)

        surface3D.AutomaticPalette = True

        surface3D.PaletteSteps = 10

        surface3D.SyncPaletteWithAxisScale = False

        surface3D.FrameColorMode = SurfaceFrameColorMode.Uniform

        surface3D.Legend.Format = "<zone_value>"

        surface3D.SmoothPalette = False

The problem is that the legend item repeats the color.eg. (legend item 9 has the same color as the 1^st legend item and item 10 has the same color as that of item 2).How can we make sure that the legend do not repeat the colors when automatic palette is set to true?

Attached file contians the Image of the chart.

Thanks, in advance