Lookup popup: manually add column

I have lookup popup, when I "auto generate" the columns, it's fine, fully functional. But when I manually add the columns, the column value is blank, all the functions are functional (search, paging, etc).

Popup when manually add column:

This is manually added columns:

This is the columns when autogenerate:

I notice the table name before the fieldname but I cannot type the property manually.

PS: in this question I'm using simple book - author tables.


Hi @KuKuDaPe,

Most probably the sub property is not expanded. You can add ExAuthor to $expand parameter in the data source method invoke used to populate data for this grid.