facing problem while executing vb.net query

Question

Dim con As SqlConnection
        con = New SqlConnection(\"server=chinna; uid=sa; pwd=136018@h; database=icms\")
        con.Open()
        Dim cmd As SqlCommand
            


        

Answer 1

use HasRows on rdr and set DataSourcefor GridView1

    Dim rdr As SqlDataReader
    rdr = cmd.ExecuteReader()
    If rdr.HasRows Then
        GridView1.Visible = True
        GridView1.DataSource = rdr
        GridView1.DataBind()
    End If