We have no water going to the toilet in our bathroom an the basement. The sink and shower both get water. The toilet is between the sink and shower. I read the previous post and we took off the valve. No water is coming from the pipe from the wall, when we turn the water back on. Any suggestions short of opening the wall.

Is it possible that the cold water supply's froze up? If not have you turned the water off to the house, removed the valve and placed a pan over the open pipe while someone turned the house back on for a few seconds to see if the line's clogged?
Let me know if the line's clogged or open. Good luck, Tom