First item settings

There are not many things on duty today. I think of a recently modified program. After a user opens the program, he has to click the mouse to enter the query conditions, but he didn't need to develop it before, the focus is directly placed in the field to be entered. Many object attributes are found and the corresponding attributes are not found.

I searched the internet and couldn't find the answer. I carefully compared the program of my predecessors and found the problem. In this program, the block where the default item is located is at the top of all blocks, and the default item is at the top of all items. Immediately trigger my block and item, test, and check whether the order of root block and item placement is related.

Later, we found that the first block can be defined in the form attribute.