ASP.NET Listview.selectedindex属性变得疯狂

我正在从listview中删除单个数据库记录，删除后，我尝试使用listView1.selectedindex属性在listview中导航，但我注意到它突出显示了不正确的记录，例如，我将listView1.selectedindex设置为1，但它显示了索引为0的记录。怎么了？请帮忙

protected void deleteButton_Click(object sender, EventArgs e)
{
    int id = int.Parse(((Label)ListView1.Items[ListView1.SelectedIndex].FindControl("idLabel")).Text);

    using (SqlConnection conn = new SqlConnection(connStr))
    {
        string Sql = "delete from Employee where id = @id";
        conn.Open();
        using (SqlCommand dCmd = new SqlCommand(Sql, conn))
        {
            dCmd.Parameters.AddWithValue("@id", id);
            dCmd.ExecuteNonQuery();
        }
        conn.Close();
    }
    BindDataFromBaseToListView();
}

BindDataFromBaseToListView方法看起来是这样的：

private void BindDataFromBaseToListView()
{
    using (SqlConnection conn = new SqlConnection(connStr))
    {
        conn.Open();
        using (SqlDataAdapter dAd = new SqlDataAdapter("select * from Employee", conn))
        {
            DataTable dTable = new DataTable();
            dAd.Fill(dTable); 

            ListView1.DataSourceID = null;
            ListView1.DataSource = dTable;
            ListView1.DataBind();
        }
        conn.Close();
  }

不使用deleteButton\u Click事件，您可以使用ListView的OnItemCommand事件获取所选行值并删除所需的项，如下面的代码所示：

protected void ListView1_ItemCommand(object sender, ListViewCommandEventArgs e)
{
    if (e.CommandName == "delete")
    {
        int id = 0;
        if(int.TryParse((e.Item.FindControl("idLabel") as Label).Text, out id))
        {
            using (SqlConnection conn = new SqlConnection(connStr))
            {
                string Sql = "delete from Employee where id = @id";
                conn.Open();
                using (SqlCommand dCmd = new SqlCommand(Sql, conn))
                {
                    dCmd.Parameters.AddWithValue("@id", id);
                    dCmd.ExecuteNonQuery();
                }
                conn.Close();
            }
            BindDataFromBaseToListView();
        }
    }
}

控件上的元素将如下所示：

<asp:ListView ID="ListView1" runat="server" OnItemCommand="ListView1_ItemCommand" .. >
     ...
     <ItemTemplate>
         <asp:Button runat="server" CommandName="delete" Text="Delete" ID="DeleteButton" />

     ...

如果你还有问题，请告诉我