Header View comments desapears

when i write a commenter in sql server view
/* comments */

this comments disapears after reopening

If you have saved the view, then Toad can display the view definition (including any comments) in the Viewer doc tab.
You can bring up the Viewer Doc tab for your object/view by right-clicking an object in the Object Explorer and choosing View Details, per snap below.

So, more details needed when describing your use case please.

  • Where, exactly, are you writing your comments in the View? (e.g. are you in the Alter View panel, for example?)
  • The comments have disappeared when "re-open". How are you "re-opening"? Can you give screen snaps for context?

Hope this helps.