How to enable html select post back apsx page when selection changed?

Question

With asp.NET control dropdownlist, there is a property AutoPostBack, if it is set "True", the whole page will be posted back.

If the aspx page include a html element "select" like:

<select id="list" name="list" runat="server"
    DataTextField="Name" DataValueField="ID" ></select>

and it data is filled by code-behind.

Question is: how to allow this Select have AutoPostBack function too?

Answer 1

Hey,

The DropDownList approach adds a __doPostBack('selectelementname', 'commandname'); call to the onchange event. When you change the value, this then proceeds to post back to the server, and then the ASP.NET control processes the postback data in LoadPostData method.

HTH.