C# 选中复选框即使在选中后也不会调用“索引已更改”函数

选择项目时，不会触发更改事件

ASP页面：

<asp:CheckBoxList ID="CheckBoxList1" runat="server" 
    DataSourceID="SqlDataSource1" DataTextField="name" DataValueField="name"
    OnSelectedIndexChanged="CheckBoxList1_SelectedIndexChanged"> 
</asp:CheckBoxList>

---

你试过把AutoPostBack=“true”

   public partial class WebForm1 : System.Web.UI.Page
   {
    protected void Page_Load(object sender, EventArgs e)
    {

        Chart1.Visible = false;
    }

    protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e)
    {

        Chart1.Visible = true;


        CDLDataAccess.dao.Insert("inside");
    }

}

<asp:CheckBoxList ID="CheckBoxList1" runat="server"  AutoPostBack="true" 
    DataSourceID="SqlDataSource1" DataTextField="name" DataValueField="name"
    OnSelectedIndexChanged="CheckBoxList1_SelectedIndexChanged"> 
</asp:CheckBoxList>