Text Changes to UPPER CASE automatically inside the LOOP AT METHOD

Hi Experts,

I have some problems with my Dialog Screen Table Control. I created a table which display the fields retrieved from a custom table. This Table Control always converts the text field Characters into UPPERCASE when passed to some of the methods that I called. But inside each method, there are no such UPPERCASE translation. And I checked the database field of the table, it actually can accept lower-case characters. What should be the solution to retain the correct CASE of the value in the screen?

Thanks and Regards!