Print ,Group ,Telerik kendo ui

shHai
1.We are printing the kendo ui grid content using javascript.Here all columns are shown for print preview but if we go group in kendo ui those element are not shown for print preview in MVC
How can i solve the issue

code in view
columns.Group(g => g.Title("COOL DRINKS")

Ex:
Prd_id Cool drinks Soaps
Thumps up Coca cola Lux Rexona Hamam
1 10 20 12 12 12
2 29 30 22 1 2
3 9 8 4 2 3
4 91 45 10 11 54


All contents are displayed except Cool drinks and soaps in Telerik

2.How can i show the session["id"]= "raja" value in javascript

Thanks