Question
How can I select a timeitem in the gantarea by selecting an item from a combobox? ID from combobox is set in UserIntegerReference
Answer
You need to iterate the Gantt and find the time item with the correct UserIntegerReference. Once you have it you can set the Selected property to true on the time item, and if you want it focused you set IphGantX3.SetCurrentDataEntityGantArea(ti)
You can use the IphDataList3lev.FindFromUserIntegerReference to search all the time items like this
phGant.IphGantX3.AllDataEntities.FindFromUserIntegerReference(x), it will then return the first time item with x in its UserIntegerReference.
Or you can iterate thru the datastructure: