Have you specified its value?
The DataTable you have in the main should be passed in as arguments there!
Refer to this screenshot:
Screenshot (112).png1366x768 141 KB
In_dt is the In type argument in the DataTable_Display file and i’m passing in the value of the data table (dt_main) that im getting in the main.xaml file
So, make sure you supply some value in the Value Column, if you haven’t done so.
Also first try to get the datatable in writeline or message box to check it its not empty!
How are you formin the data table? is it frm an excel,data scraping,or manual?
Do make sure it actually has some data before passing it.