When HtmlTextBox is empty and i click some expression is added like this " = Len("bla")", but when something is already put is added like this "{Len("bla")}
Problem with version " =" is it does not work with neither text.
This is my scenerio, I pick some function for example Len(), and then i want to add some info, and i've got
= Len("numbers") numbers
and there is error in viewer
but when i put first "numbers" and click expresion len
expression is added with {} and it works ok in viewer