this.rowIndex question

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  • webdev
    #1

    this.rowIndex question

    Folks,

    Can someone please tell me why this simple piece of code, irritatingly,
    fails to give the expected result?

    Regards
    Rae MacLeman

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
    <html>
    <head>
    <title>Sample Code</title>
    </head>
    <body>
    <table id="table1" border="1">
    <tr>
    <td onClick="alert( this.rowIndex); ">Tell me which row</td>
    </tr>
    <tr>
    <td onClick="alert( this.rowIndex); ">Tell me which row</td>
    </tr>
    <tr>
    <td onClick="alert( this.rowIndex); ">Tell me which row</td>
    </tr>
    </table>
    </body>
    </html>


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    Tags: None
    • Michael Winter
      #2
      Re: this.rowIndex question

      On Sun, 10 Oct 2004 18:45:23 +0100, webdev <someone@micros ofdt.com> wrote:
      [color=blue]
      > Can someone please tell me why this simple piece of code, irritatingly,
      > fails to give the expected result?[/color]

      [snip]
      [color=blue]
      > <td onClick="alert( this.rowIndex); ">Tell me which row</td>[/color]

      [snip]

      Table cells don't have a rowIndex property, rows do.

      onclick="alert( this.parentNode .rowIndex);"

      retrieves the containing row, and its index within the table.

      Mike

      --
      Michael Winter
      Replace ".invalid" with ".uk" to reply by e-mail.

        Comment

        • Richard Cornford
          #3
          Re: this.rowIndex question

          webdev wrote:[color=blue]
          > Can someone please tell me why this simple piece of code,
          > irritatingly, fails to give the expected result?[/color]

          Not unless you state what your expectation is. I would be expecting the
          alerts to report "undefined" or fail to operate (having no string
          argument) depending on the browser.

          <snip>[color=blue]
          ><tr>
          > <td onClick="alert( this.rowIndex); ">Tell me which row</td>
          ></tr>[/color]
          <snip>

          Are you expecting the TD elements to have a rowIndex property? If you
          are interested in the rowIndex of the containing TR you might try -
          this.parentNode .rowIndex -.

          Richard.


            Comment

            • webdev
              #4
              Re: this.rowIndex question


              "Richard Cornford" <Richard@litote s.demon.co.uk> wrote in message
              news:ckbuip$qor $1$8302bc10@new s.demon.co.uk.. .[color=blue]
              > webdev wrote:[color=green]
              > > Can someone please tell me why this simple piece of code,
              > > irritatingly, fails to give the expected result?[/color]
              >
              > Not unless you state what your expectation is. I would be expecting the
              > alerts to report "undefined" or fail to operate (having no string
              > argument) depending on the browser.
              >
              > <snip>[color=green]
              > ><tr>
              > > <td onClick="alert( this.rowIndex); ">Tell me which row</td>
              > ></tr>[/color]
              > <snip>
              >
              > Are you expecting the TD elements to have a rowIndex property? If you
              > are interested in the rowIndex of the containing TR you might try -
              > this.parentNode .rowIndex -.
              >
              > Richard.
              >
              >[/color]
              My expectation was that it would return the rowindex ;0)

              I'm wiser now



              ---
              Outgoing mail is certified Virus Free.
              Checked by AVG anti-virus system (http://www.grisoft.com).
              Version: 6.0.775 / Virus Database: 522 - Release Date: 10/8/04


                Comment

                • webdev
                  #5
                  Re: this.rowIndex question


                  "Michael Winter" <M.Winter@bluey onder.co.invali d> wrote in message
                  news:opsfn1pun6 x13kvk@atlantis ...[color=blue]
                  > On Sun, 10 Oct 2004 18:45:23 +0100, webdev <someone@micros ofdt.com> wrote:
                  >[color=green]
                  > > Can someone please tell me why this simple piece of code, irritatingly,
                  > > fails to give the expected result?[/color]
                  >
                  > [snip]
                  >[color=green]
                  > > <td onClick="alert( this.rowIndex); ">Tell me which row</td>[/color]
                  >
                  > [snip]
                  >
                  > Table cells don't have a rowIndex property, rows do.
                  >
                  > onclick="alert( this.parentNode .rowIndex);"
                  >
                  > retrieves the containing row, and its index within the table.
                  >
                  > Mike
                  >
                  > --
                  > Michael Winter
                  > Replace ".invalid" with ".uk" to reply by e-mail.[/color]

                  Thanks Mike - I'd already tried "parentNode.row Index" somewhere along the
                  line.

                  Rae


                  ---
                  Outgoing mail is certified Virus Free.
                  Checked by AVG anti-virus system (http://www.grisoft.com).
                  Version: 6.0.775 / Virus Database: 522 - Release Date: 10/8/04


                    Comment

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