Hi Sung, welcome 
Please take the time to review the following post How to get help on the Dynamo forums
What have you tried so far?
Unless you are talking about families such as annotations (in a view) or titleblock instances in a sheet view, a family is in the model and its parameters are not view dependent
If you want to change appearance on a per view basis you could use filters or view overrides, however this will not change parametric values such as length or angle
Please provide any additional information so members of the forum can assist