IU Element InputField is all over the time disabled.
What can be the reason for.
Property values like visible and enabled are checked already they are correctly.
Your input field can be disabled because of one of the reasons:
1. Value property is not binded to any context.
2. Value property is binded to a node with an attribute of a node whose cardinality is 0:n or 0:1 and you have not instantiated an object of this node in your code.
3. Enabled property is set to false (which is not the case as you have verified).
4. Read Only property is set to true.