ASP.NET Edit a Field without reloading the whole Listview - asp.net

Question

I have a Listview and a dropdownlist:
<asp:ListView ID="lv_ClassTeacher" runat="server" vertical-align="top" OnSelectedIndexChanged="lv_ClassTeacher_SelectedIndexChanged" OnSelectedIndexChanging="lv_ClassTeacher_SelectedIndexChanging" DataKeyNames ="ClassID" OnPagePropertiesChanged="lv_ClassTeacher_PagePropertiesChanged" OnPagePropertiesChanging="lv_ClassTeacher_PagePropertiesChanging" OnItemDataBound="lv_ClassTeacher_ItemDataBound" OnItemCommand="lv_ClassTeacher_ItemCommand">
<LayoutTemplate>
<table border="1">
<tr runat="server">
<th runat="server"></th>
<th runat="server">Class</th>
<th runat="server">Teacher</th>
</tr>
<tr runat="server" id="itemPlaceholder" />
</table>
</LayoutTemplate>
<ItemTemplate>
<tr>
<td><asp:Button ID="cmd_View" runat="server" CommandName="Select" Text="View" Height="21px" /></td>
<td><div runat="server" id="area"><asp:Label ID="Label1" runat="server" Text='<%#Eval("Class") %>' /></div></td>
<td><asp:Label ID="Label2" runat="server" Text='<%#Eval("Teacher") %>' /></td>
</tr>
</ItemTemplate>
</asp:ListView>
<asp:DropDownList ID="cb_SwitchTeacher" runat="server" AutoPostBack = "true" OnSelectedIndexChanged="cb_SwitchTeacher_SelectedIndexChanged">
Part of code behind:
conn.Open();
using (MySqlCommand sqlCommand = conn.CreateCommand())
{
sqlCommand.CommandText = "SELECT * FROM tblClassTeacher";
using (MySqlDataAdapter sda = new MySqlDataAdapter(sqlCommand))
{
DataTable dt = new DataTable();
sda.Fill(dt);
lv_ClassTeacher.DataSource = dt;
lv_ClassTeacher.DataBind();
}
}
protected void cb_SwitchTeacher_SelectedIndexChanged(object sender, EventArgs e)
{
string TeacherName= cb_SwitchLabel.Text;
using (MySqlCommand sqlCommand = conn.CreateCommand())
{
sqlCommand.CommandText = "UPDATE tblClassTeacher SET Teacher=" + TeacherName + " WHERE ClassID=" + lv_ClassTeacher.SelectedDataKey.Value.ToString();
sqlCommand.ExecuteNonQuery();
//What can I do to update the listview without reloading the whole table?
}
}
}
On Pressing the "cmd_View", the Class field will be highlighted. When user switch to another Teacher on the dropdownlist, I will update the database.
But I want to update the listview as well without reloading the whole table.
Can I do that? Thank you.