I'm have detail, "Sketch1" and set of constraints, what I'm add in code, like this:

swDoc.SketchAddConstraints("sgCOINCIDENT")

Now I'm need to find all constarints in "Sketch1" and delete one constraint "Horizontal1" (I'm don't know exact name of constraint)

What methods I can use to delete one constraint ?

I'm try to delete all constraint in Sketch, but this method don't work, why ?

  boolstatus = swDoc.Extension.SelectByID2("Sketch1", "SKETCH", 0, 0, 0, False, 0, Nothing, 0)

   swDoc.SketchConstraintsDelAll()