ASP.NET Client side event question

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  • Karl
    #1

    ASP.NET Client side event question

    Hi I am new to asp.net and I need to get my head around
    the way client side events interact with server side
    events.

    I want to have three listbox's on a page, the value the
    user selects in the first listbox determines the second
    listbox's values, the value the user selects in the second
    box determines the third listbox's values etc.

    I double clicked on the first listbox to generate a code
    behind event which I filled with the appropriate code but
    of course nothing happens on the web interface because my
    event is server side.

    Please help.
    Tags: None
    • John Timney \(Microsoft MVP\)
      #2
      Re: ASP.NET Client side event question

      With ASP.NET you are still bound by all the constraints of HTML and client
      side events you were with ASP. if you want something to happen on your
      client, you have to output the appropriate javascript to make it happen.
      The alternative is to do round trips to the server.

      --
      Regards

      John Timney (Microsoft ASP.NET MVP)
      ----------------------------------------------
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      Professional .NET for Java Developers with C#
      ISBN:1-861007-91-4
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      ISBN: 1861005547
      Professional JSP 2nd Edition
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      ISBN: 1861002092
      </shameless_autho r_plug>
      ----------------------------------------------

      "Karl" <kwoollaston@li nz.govt.nz> wrote in message
      news:1247601c3c 02c$fc020270$a6 01280a@phx.gbl. ..[color=blue]
      > Hi I am new to asp.net and I need to get my head around
      > the way client side events interact with server side
      > events.
      >
      > I want to have three listbox's on a page, the value the
      > user selects in the first listbox determines the second
      > listbox's values, the value the user selects in the second
      > box determines the third listbox's values etc.
      >
      > I double clicked on the first listbox to generate a code
      > behind event which I filled with the appropriate code but
      > of course nothing happens on the web interface because my
      > event is server side.
      >
      > Please help.[/color]


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