I need the following form code logics?

Question

1)how to disable a field?
2)code for submit button?
Plz reply with the code if anyone knows . . .

Answer 1

So, when you say "submit", you mean "execute a query"? If so, you shoulkd do the following:
Create a block based on your table containing the data you want to show. Use the datablock wirzard to do so.
In your button, put code like
GO_BLOCK('YOURBLOCK');
EXECUTE_QUERY;
If you have a searchfield in another block and you want to use that as search-criteria, edit the block-properties for your block and add something like this in the property WHERE-clause:
TABLE_COLUMN=:SEARCHBLOCK.SEARCHITEM