Set filed

I have to set one filed value to null when before editing a document, it is fired in web.The code is

@command([editdocuemnt])

before this line i have to set “isSave” field to null. I tried using Field isSave:=“”

and

@setfield(“isSave”;“”)

Both of them are not working in web. Could any one please suggest how to do it in web.

Subject: Set filed

You cannot change the field’s value if it is not in edit mode.