将一系列工具提示添加到LED阵列的数据模板中

I've been stuck for far too long on this problem. I've tried many options and I can't get the syntax correct. All of the options I have tried either displays the data type, the same name for all the elements, a blank tooltip, no tooltip, or the LED bit value. I can display an array of LEDs where the color is determined by a bit value but I need to add the name of each element to a tooltip. I use a data template to display the array.I've been stuck for far too long on this proble