Thanks for the clarification, I was about to do an internet search for the Texas penal code.
The following is my personal policy, and I'm not suggesting that others do the same, or that they are wrong if they do differently-
If a business or private property has a NO KNIVES "rule", and if there is no metal detector, I would carry a concealed knife regardless of any "rules" to the contrary.
And if there was a metal detector, and I had no chance of entering with a knife, then I would not go in. My reason is not because I think I will need a knife, or because I can't possible be without it for a few hours, it is because I don't want to give my money to any business that wants to deprive me of my legal rights, whatever those rights may be. I place a very high value on my legal rights. And if that means I miss a sporting event or my kids can't go to Disneyland, then that's just the way it has to be.
There are plenty of other places to go and fun things to do where no one is trying to deprive me of my rights.