How to select a child from an UIElementCollection where a property = some value?
I have a UniformGrid with a number of Button 's as Children . Each Button has a Tag with an ID, e.g. (dumbed down code): MyUniformGrid.Children.Add(new Button { Margin = new Thickness(5), Tag = Query.GetUInt32("id"), Width = 200 }); How can I select the child Button object with an ID of 87? (as a for instance) Intellisense isn't popping up with the Linq methods when I type MyUniformGrid.Children. (after adding using System.Linq; ). Here you go: var MyButton = MyUniformGrid.Children. OfType<Button>(). Single(Child => Child.Tag != null && Child.Tag == 87); Linq can't be run directly on