why does the search input on the datatable disappear after I click the search button?
why does the search input on the datatable disappear after I click the search button?

Link to test case:
Debugger code (debug.datatables.net):
Error messages shown:
Description of problem:
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Answers
Sounds like you might have a custom search input. By default there is no search button. See this example. Please post a link to your page or a test case replicating the issue so we can help debug.
https://datatables.net/manual/tech-notes/10#How-to-provide-a-test-case
Kevin
the results of my debug are no issues with the datatable
the problem is after i click button and page reload, datatable has a different view of datatable than before.
What button?
How are you reloading the page?
At a minimum post the relevant Javascript code to show what you have and how the page is reloaded. Better is a running test case showing the issue so we can see what you have and how it works.
https://datatables.net/manual/tech-notes/10#How-to-provide-a-test-case
Kevin