I need API/Macro help to set the length of magnet line following is my code.
Dim instance As MagneticLine
Dim value As System.Double =150
boolstatus = oDoc.Extension.SelectByID2("MagneticLine1@Drawing View1", "MAGNETLINE", 0, 0, 0, False, 0, Nothing, 0)
swSelectionManager = oDoc.SelectionManager
instance = swSelectionManager.GetSelectedObject5(swSelectType_e.SwSelMAGNETICLINES)
instance.Length = value
Above code giving error :=="Object reference not set to an instance of an object.'"
when i debug it , in instance their is nothing i.e. no object of magnet line.
I changed instance = swSelectionManager.GetSelectedObject6(1, 0) but still in instance their is nothing.
IF anyone know what is the correct way of magnet line selection please help me.