尽管visible = true，DetailsView仍未出现，以及如何绑定到空哈希表？

I am trying to bind a hashtable to a detailsview in my ASP.NET web app. When I do this, the detailsview does not appear on the webpage when I do a debug. I have checked ALL the properties for the control and ensured that the visible and autogeneratecolumns (there is no autogeneraterows property) is set to true, and it is.I am trying to bind a hashtable to a detailsvie