ช่วยแนะนำการเขียนโค้ดเกี่ยวกับ เลือกข้อมูลจาก combobox แล้วข้อมูลอื่นๆ จะขึ้นที่ textbox และบันทึกลง Sql ค่ะ (vb.net)

		Dim objConn As New SqlConnection
		Dim objCmd As New SqlCommand
		Dim strConnString,strSQL As String

		strConnString = "Server=localhost;UID=sa;PASSWORD=;database=mydatabase;Max Pool Size=400;Connect Timeout=600;"
		
		strSQL = "INSERT INTO customer (CustomerID,Name,Email,CountryCode,Budget,Used) " & _
		" VALUES " & _
		" ('" & Me.txtCustomerID.Text & "','" & Me.txtName.Text & "','" & Me.txtEmail.Text & "', " & _
		" '" & Me.txtCountryCode.Text & "','" & Me.txtBudget.Text & "','" & Me.txtUsed.Text & "')"
		objConn.ConnectionString = strConnString
		objConn.Open()
		With objCmd
		   .Connection = objConn
		   .CommandText = strSQL
		   .CommandType = CommandType.Text		   
		End With
				
		Me.pnlAdd.Visible = False

		Try
			objCmd.ExecuteNonQuery()            
			Me.lblStatus.Text = "Record Inserted"
			Me.lblStatus.Visible = True
		Catch ex As Exception
			Me.lblStatus.Visible = True
			Me.lblStatus.Text = "Record can not insert Error ("& ex.Message &")"
		End Try

		objConn.Close()
		objConn = Nothing