Aggravated assault with deadly weapon

My friend had a warrant for his arrest the charge was aggravated assault with deadly weapon. He didn’t get arrested the night of, they waited about 2 weeks and came and got him at his house around midnight. I see his name and charges, warrant number, booking number all online. I don’t see a bond amount or magistrate name. Now my question is can we bail him out at this time? Does he have to actually sit in jail? How can I find out what’s his bond amount if there is one? Location: Dallas Texas