Final answer:
If the Apex class metadata type is not available in the metadata grid when Dave clicks Commit Changes, he should ensure that the Apex class has been saved and is in a valid state, verify the correct organization is selected, and check the metadata API version.
Step-by-step explanation:
If the Apex class metadata type is not available in the metadata grid when Dave clicks Commit Changes, there are a few things he should check:
- Ensure that the Apex class has been saved and is in a valid state. If there are any errors or unsaved changes, the metadata type may not be available.
- Verify that the correct organization is selected in the Developer Console or IDE. The Apex class may be associated with a different organization where its metadata is not accessible.
- Check if the metadata API version being used in the development environment supports the Apex class metadata type. If an older version is being used, it's possible that the Apex class metadata is not available in the grid.