Problem with adding an event to the combo

Question

I have a combobox:

<ext:ComboBox ID="cbGroup" runat="server" Width="150" 
        OnItemSelected="cbGroup_ItemSelected">
    </ext:ComboBox>

and a method:

    protected void cbGroup_ItemSelected(object sender, EventArgs e)
    {
        FilterItemSelected(this, new EventArgs());
    }

when the item in the combobox is changed the method isnt triggered.
what am i missing?

Answer 1

我认为您需要控件上的AutoPostBack="true" 。

Answer 2

基于我对ASP.NET DropDownList控件的了解，我会说要在ComboBox上查找AutoPostBack属性并将其设置为true。

Answer 3

I don't know what component framework you're using, but the asp:DropDownList has the OnSelectedIndexChanged event which will be triggered when an item is selected, with the assumption that AutoPostBack is set to true :

<asp:DropDownList AutoPostBack="true" ID="cbGroup" runat="server" Width="150" OnSelectedIndexChanged="cbGroup_ItemSelected"></asp:DropDownList>

Update : As I mentioned in my comment to Philip Smith's answer, I think the problem is that you don't set AutoPostBack to true ; without this setting, the control won't trigger the event on the server-side, since AutoPostBack is standard set to false