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I have a String array kinda like this: // icon, category, tool String[,] subButtonData = new String[,] { {"graphics/gui/brushsizeplus_icon", "Draw", "DrawBrushPlus"}, {"graphics/gui/brushsizeminus_icon", "Draw", "DrawBrushMinus"}, {"graphics/gui/freedraw_icon", "Draw", "DrawFree"}, {"graphics/gui/linedraw_icon", "Draw", "DrawLine"}, {"graphics/gui/rectangledraw_icon", "Draw", "DrawRectangle"}, {"graphics/gui/ellipsedraw_icon", "Draw", "DrawEllipse"}, {"graphics/gui/brushsizeplus_icon", "Brusher", "BrusherBrushPlus"}, {"graphics/gui/brushsizeminus_icon", "Brusher", "BrusherBrushMinus"}, {"graphics/gui/brushsizeplus_icon", "Text", "TextBrushPlus"}, {"graphics/gui/brushsizeminus_icon", "Text", "TextBrushMinus"}, }; Then I populate a List<Button> with my Button Type named mainButtons This is how I query for grouping for Category : var categories = from b in mainButtons group b by b.category into g select new { Category = g.Key, Buttons = g }; How can I select the first item of each group in my main List? (without iterating each and adding to another List?)

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