update unable to find table mapping or data table

[krisssgopi]

Hi Team,

While am using the below code it was throwing an exception update unable to find table mapping [Customer] or data table customer. Please help me in this regard.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Try
            con.Open()
            param.ParameterName = "@uname"
            param.ParameterName = "@uid"
            param.ParameterName = "@uprod"
            param.ParameterName = "@uprice"
            param.ParameterName = "@udop"
            param.ParameterName = "@utot"
            param.Value = TextBox1.Text
            cmd.Parameters.AddWithValue("@uname", TextBox2.Text)
            cmd.Parameters.AddWithValue("@uid", TextBox1.Text)
            cmd.Parameters.AddWithValue("@uprod", TextBox3.Text)
            cmd.Parameters.AddWithValue("@uprice", TextBox4.Text)
            cmd.Parameters.AddWithValue("@utot", TextBox5.Text)
            'cmd.Parameters.AddWithValue("@uname", datetimepicker1.
            cmd = New SqlCommand("insert into customer(custid,custname,product,price,total)values(@uid,@uname,@uprod,@uprice,@utot)", con)
            da = New SqlDataAdapter(cmd)
            da.Update(ds, "customer")
            MsgBox("inserted...")
 
 
        Catch ex As Exception
            MsgBox(ex.Message.ToString)
        End Try
        con.Close()