Casting

Hi just a quick question, in pvp are you able to continue casting a spell, say frostbolt without repositioning your character?, as in do you have to stop and re cast if the target strafes to the side and moves out of line of sight?
Thanks in advance.
only targeted channeled spells like mind flay or arcane missiles can go through line of sight.. however u need to have started casting it before the target goes out of line of sight..


the only spell that i can think off that can be cast while moving is scorch with the fire talent firestarter..
LoS or out of range is sort of different than if a target moves out of your casting area (ex. behind you). If it's LoS or out of range, the spell will automatically stop casting and you will have to move to a position and re-cast. If the target is just moving, you can hold down the right mouse button and just keep the target in front of you (including if someone goes behind you or 90 degrees to any side of you), the spell will not stop casting.