...this has been a very common question/topic on the net.

and after reading much of that still i am not getting how to do it.

here is my code in brief :

Dim con As New SqlConnection("Data Source=server1;Initial Catalog=Hotel Management;" & _
"Integrated Security=SSPI;")
Dim da As New SqlDataAdapter("roo_Room_Facility_Master_Get", con)
Dim ds As New DataSet("Table1")
da.Fill(ds, "Table1")
Dim dt As DataTable
dt = ds.Tables(0)
DataGrid1.DataSource = dt


the sql procedure returns a list of Facilities that can be provided in a Room thru a Select Query which itself doesnt contain any boolean field.

i want to add an extra checkbox column just for the sake of making multiple selections. so that i can store those selected ids seperated by commas.

please suggest some good article/code which clearly gives the desired solution.