Thank you a lot for your answer! I tried this and apparently the content seems to be undefined, so there needs to be the problem!
I tried to display the data now in a table by only connecting the table to the respective columns of my dataset. After input in the preview, the number I typed in is displayed in this table, but after this number appears, an empty line is added as the first line of the table. Does anybody know why this might happen? In the corresponding dataset no additional empty line is added. However, if my onReady function defines this additional new empty line as currentItem, this might explain that the content I wish to display is empty…
Does anybody have any idea how to solve this issue?
Thank you so much for your help!