Yes, non-disclosure agreements are enforceable in Texas. That being said, NDAs with a reasonable scope are more likely to hold up in court if challenged. Sometimes, if a challenged NDA is too broad, the court may reform it. This means that the business cannot recover damages from violations of the previous agreement.
32. Contingent contracts to do or not to do anything if an uncertain future event happens cannot be enforced by law unless and until that event has happened. If the event becomes impossible, such contracts become void.
The contract is characterized as "contingent" because the terms are not final and are based on certain events or conditions occurring. A contingent contract can also be viewed as protection against a future change of plans.
A "contingent contract" is a contract to do or not to do something, if some event, collateral to such contract, does or does not happen.