Hello!
Do you have any support for this by now? (loading the contents shown in datagrid to export)
In our datagrid we have templates like this:
${this.Db.GetCommaSeparatedSites(data.Id).Result.ToString()}
I would like to have same result in excel 
I've been checking out the ExportController.Custom but haven't figured out how i would write it there, right now we have a list for the columns like this:
$"Id as ID," +
$"Header as Header_English," +
$"IssuedBy as Issued_By_Email_Address," + ... and so on.
Hope you're having a great monday!