DropDownList events not firing

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  • Waldy
    #1

    DropDownList events not firing

    Hi there,
    I have a web form with some DropDownList controls that I am
    trying to trap the selection change and run the attached server code.
    However, even thought the controls have the runat property set to server,
    the event code does not get executed. Anyone have any ideas?


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    • Madhur
      #2
      Re: DropDownList events not firing

      Can you post some code ? Make sure that AutoPostBack property of
      DropDownList is set to True.

      --
      Madhur

      "Waldy" <someone@micros oft.comwrote in message
      news:OYZSo0CsIH A.4876@TK2MSFTN GP02.phx.gbl...
      Hi there,
      I have a web form with some DropDownList controls that I am
      trying to trap the selection change and run the attached server code.
      However, even thought the controls have the runat property set to server,
      the event code does not get executed. Anyone have any ideas?
      >

        Comment

        • Waldy
          #3
          Re: DropDownList events not firing


          "Madhur" <sdf@df.comwrot e in message
          news:689729EC-570C-4571-9596-D2BC853306B5@mi crosoft.com...
          Can you post some code ?
          Not easily as it is a large project.
          >Make sure that AutoPostBack property of DropDownList is set to True.
          I tried that, and now the form gets posted back when a selection is made,
          but the dropdown events code still does not get executed.


            Comment

            • David Wier
              #4
              Re: DropDownList events not firing

              Please be more specific

              The two comments you made contradict each other. When you make a selection,
              the Dropdownlist OnselectedChang ed event is the event that's firing, to
              cause the postback.

              What (exactly) are you referring to when you say "dropdown events code"

              David Wier
              http://aspnet101.com

              http://iWritePro.com - One click PDF, convert .doc/.rtf/.txt to HTML with no
              bloated markup


              "Waldy" <someone@micros oft.comwrote in message
              news:OjftqYEsIH A.5068@TK2MSFTN GP02.phx.gbl...
              >
              "Madhur" <sdf@df.comwrot e in message
              news:689729EC-570C-4571-9596-D2BC853306B5@mi crosoft.com...
              >Can you post some code ?
              >
              Not easily as it is a large project.
              >
              >>Make sure that AutoPostBack property of DropDownList is set to True.
              >
              I tried that, and now the form gets posted back when a selection is made,
              but the dropdown events code still does not get executed.
              >

                Comment

                • Waldy
                  #5
                  Re: DropDownList events not firing

                  Hi David,
                  The two comments you made contradict each other. When you make a
                  selection, the Dropdownlist OnselectedChang ed event is the event that's
                  firing, to cause the postback.
                  The page is re-loaded.
                  What (exactly) are you referring to when you say "dropdown events code"
                  The OnSelectedIndex Changed code in the code behind file.


                    Comment

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