You can define an individual GridView column as read-only, as opposed to the entire GridView. To do this:
In the Form Designer, click the pencil icon next to the GridView field in the column you want to make read-only. (Clicking the pencil icon next to the GridView itself will open settings for the entire GridView.)
From the Select an attribute… drop-down list, select enabled under ASP.NET Properties, then click
+to add the attribute.
In the Value field, change
false, then click the check mark to save and exit.