page lifecycle - asp.net OnPreLoad doesn't fire? -

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i can't figure out why onpreload function doesn't fired search.aspx.cs.
*update * - ok, figured out what's causing problem, don't understand why problem. updated question.

here 3 relevant files:

// search.aspx -- <select runat="server"> caused problem <select runat="server" id="slctcategories">     <asp:repeater runat="server" id="optcategories">     <itemtemplate>     <option value=""></option>     </itemtemplate>     </asp:repeater>  </select>  // search.aspx.cs using system; using system.collections.generic; using system.linq; using system.web; using system.web.ui; using system.web.ui.webcontrols; using system.data.sqlclient; using system.configuration;  public partial class search : btpage {     protected override void onpreload(eventargs e)     {         base.onpreload(e);     }     protected void page_load(object sender, eventargs e)     {      }  }  // btpage.aspx.cs - file search.aspx.cs inherits using system; using system.collections.generic; using system.linq; using system.web; using system.web.ui; using system.web.ui.webcontrols; using system.data.sqlclient; using system.configuration;  public partial class btpage : system.web.ui.page {     protected sqlconnection cnx;      protected override void onpreload(eventargs e)     {         cnx = new sqlconnection(configurationmanager.appsettings["database"]);         cnx.open();     }      protected override void onunload(eventargs e)     {         cnx.close();     }  }

what's weird onunload fired. what's going on? why won't onpreload fire?

** update ** - got onpreload fire after changed <select runat="server"> <select> in search.aspx. explain me why fixed problem? struggling hours this.

there might strange how using select:

<select runat="server" id="slctcategories">     <asp:repeater runat="server" id="optcategories">        <itemtemplate>           <option value=""></option>        </itemtemplate>     </asp:repeater> </select>

you should not nesting repeater inside tag. i'm surprised don't compilation/runtime error due that.

you note found dropdownlist control use instead. however, httpselectlist control has similar interface adding items - don't need list control inside it.

my guess is, since removing server control fixed problem (which fixes syntax weirdness), there subtle going on prevents normal onpreload being fired in syntax.


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