I was able to reproduce the observed issue with the specified version (2016.1.2016). I have logged the issue in our
This issue is caused because the palette is retrieved according to the menu item text. So to workaround this you should override the method which creates the context menu:
class MyChartDataPointElementController : ChartDataPointElementController
{
protected override RadContextMenu CreatePaletteMenu()
{
RadContextMenu menu = new RadContextMenu();
RadChartLocalizationProvider localizationProvider = RadChartLocalizationProvider.CurrentProvider;
RadMenuItem paletteItem = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.Palette));
menu.Items.Add(paletteItem);
RadMenuItem item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteArctic));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Arctic";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteAutumn));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Autumn";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteCold));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Gold";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteFlower));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Flower";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteForest));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Forest";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteGrayscale));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Grayscale";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteGround));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Ground";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteLilac));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Lilac";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteMetro));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Metro";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteNatural));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Natural";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PalettePastel));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Pastel";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteRainbow));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Rainbow";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteSpring));
item.Click += new System.EventHandler(item_Click);
item.Tag ="Spring";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteSummer));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Summer";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteWarm));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Warm";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteWindows8));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Windows8";
paletteItem.Items.Add(item);
item = new RadMenuItem(localizationProvider.GetLocalizedString(RadChartStringId.PaletteSun));
item.Click += new System.EventHandler(item_Click);
item.Tag = "Sun";
paletteItem.Items.Add(item);
return menu;
}
void item_Click(object sender, System.EventArgs e)
{
RadMenuItem item = sender as RadMenuItem;
if (item != null)
{
this.Area.View.Palette = ChartPalette.FromKnownPalette(item.Tag.ToString());
}
}
}