如何从代码隐藏改变列表视图中标签的值

实际上我正在使用asp.net和c#开发模板。
我使用listview在我的ascx页面和我的ItemTemplate如下:

<ItemTemplate>
<tr style="background-color:#FFF8DC;color: #000000;">
    <td>
        <asp:Button ID="DeleteButton" runat="server" CommandName="Delete" Text="Delete" CausesValidation="false" OnClientClick="return confirm('Are you sure you want to delete this Product Details?');" />
        <asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" CausesValidation="True" />
    </td>
    <td>
        <asp:Label ID="EmpIDLabel" runat="server" Text='<%# Eval("EmpID") %>' />
    </td>
    <td>
        <asp:Label ID="EmpNameLabel" runat="server" Text='<%# Eval("EmpName") %>' />
    </td>
    <td>
        <asp:Label ID="DepartmentLabel" runat="server" Text='<%# Eval("Department") %>' />
    </td>
    <td>
        <asp:Label ID="AgeLabel" runat="server" Text='<%# Eval("Age") %>' />
    </td>
    <td>
        <asp:Label ID="AddressLabel" runat="server" Text='<%# Eval("Address") %>' />
    </td>
</tr>
</ItemTemplate>

和我检索数据库中的数据在ascx代码后面如下所示:

public DataTable GetEmployee(string query)
{
    SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["NorthwindConnectionString"].ConnectionString);
    SqlDataAdapter ada = new SqlDataAdapter(query, con);
    DataTable dtEmp = new DataTable();
    ada.Fill(dtEmp);
    return dtEmp;
}

，我还在ascx代码中绑定数据，如下所示:

private void BindLVP(string SortExpression)
{
    string UpdateQuery = "Select * from Employee" + SortExpression;
    SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["NorthwindConnectionString"].ConnectionString);
    hid_UpdateQTP.Value = UpdateQuery;
    lvProduct.Items.Clear();
    lvProduct.DataSource = GetEmployee(UpdateQuery);
    lvProduct.DataBind();
}

我的问题是如何在ItemTemplate中删除<%# Eval("EmpID") %>和所有其他标签文本并更改标签。文本在ItemTemplate从后面的代码，我的意思是传递数据库的数据到这些标签从后面的代码。

protected void LVP_ItemDataBound(object sender, ListViewItemEventArgs e)
{
    if (e.Item.ItemType == ListViewItemType.DataItem)
    {
        Label EmpIDLabel = (Label)e.Item.FindControl("EmpIDLabel");
        System.Data.DataRowView rowView = e.Item.DataItem as System.Data.DataRowView;
        EmpIDLabel.Text = rowView["EmpID"].ToString();
    }
}