ListView Grid Distortion

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  • Liz
    #1

    ListView Grid Distortion


    My ListView components seem to produce distortion when they are scrolled in
    Details view; it looks almost like the text has a "strike-through" attribute
    applied to it.

    Does anyone know of a fix for this? If not, is there an alternative
    component available (that behaves like a ListView) ?

    TIA

    L

    PS: this is in VS 2005, SP1 ... I have not checked yet whether vs2008
    behaves differently


    Tags: None
    • Norman Diamond
      #2
      Re: ListView Grid Distortion

      I vaguely remember working around a problem similar to that, by adding a
      scroll handler and calling the Invalidate method (to force a refresh).


      "Liz" <liz@tiredofspa m.comwrote in message
      news:ephpu9XfIH A.4728@TK2MSFTN GP03.phx.gbl...
      >
      My ListView components seem to produce distortion when they are scrolled
      in Details view; it looks almost like the text has a "strike-through"
      attribute applied to it.
      >
      Does anyone know of a fix for this? If not, is there an alternative
      component available (that behaves like a ListView) ?
      >
      TIA
      >
      L
      >
      PS: this is in VS 2005, SP1 ... I have not checked yet whether vs2008
      behaves differently
      >
      >

        Comment

        • Liz
          #3
          Re: ListView Grid Distortion


          "Norman Diamond" <ndiamond@newsg roup.nospamwrot e in message
          news:eQTdxwYfIH A.4396@TK2MSFTN GP04.phx.gbl...
          >I vaguely remember working around a problem similar to that, by adding a
          >scroll handler and calling the Invalidate method (to force a refresh).
          what event did you handle ... on what object? this sounds like it makes
          sense but I have no handles to grab here ... can you say a little bit more
          about what you did? thanks ....

          Liz

          >
          "Liz" <liz@tiredofspa m.comwrote in message
          news:ephpu9XfIH A.4728@TK2MSFTN GP03.phx.gbl...
          >>
          >My ListView components seem to produce distortion when they are scrolled
          >in Details view; it looks almost like the text has a "strike-through"
          >attribute applied to it.
          >>
          >Does anyone know of a fix for this? If not, is there an alternative
          >component available (that behaves like a ListView) ?
          >>
          >TIA
          >>
          >L
          >>
          >PS: this is in VS 2005, SP1 ... I have not checked yet whether vs2008
          >behaves differently
          >>
          >>
          >

            Comment

            • Claes Bergefall
              #4
              Re: ListView Grid Distortion

              In my experience, these types of artifacts are caused by crappy graphics
              drivers. Do you experience the problem on different machines or only on a
              specific one? What graphics card are you using?

              /claes

              "Liz" <liz@tiredofspa m.comwrote in message
              news:ephpu9XfIH A.4728@TK2MSFTN GP03.phx.gbl...
              >
              My ListView components seem to produce distortion when they are scrolled
              in Details view; it looks almost like the text has a "strike-through"
              attribute applied to it.
              >
              Does anyone know of a fix for this? If not, is there an alternative
              component available (that behaves like a ListView) ?
              >
              TIA
              >
              L
              >
              PS: this is in VS 2005, SP1 ... I have not checked yet whether vs2008
              behaves differently
              >
              >

                Comment

                • Norman Diamond
                  #5
                  Re: ListView Grid Distortion

                  "Liz" <liz@tiredofspa m.comwrote in message
                  news:egvmxZcfIH A.1824@TK2MSFTN GP02.phx.gbl...
                  "Norman Diamond" <ndiamond@newsg roup.nospamwrot e in message
                  news:eQTdxwYfIH A.4396@TK2MSFTN GP04.phx.gbl...
                  >
                  >>I vaguely remember working around a problem similar to that, by adding a
                  >>scroll handler and calling the Invalidate method (to force a refresh).
                  >
                  what event did you handle ... on what object?
                  The Scroll event on a DataGridView. It looks like I didn't have that
                  problem with a ListView. I think you can catch the Scroll event on a
                  ListView too though.

                    Comment

                    • Liz
                      #6
                      Re: ListView Grid Distortion


                      "Norman Diamond" <ndiamond@newsg roup.nospamwrot e in message
                      news:O8m6lYlfIH A.4684@TK2MSFTN GP06.phx.gbl...
                      "Liz" <liz@tiredofspa m.comwrote in message
                      news:egvmxZcfIH A.1824@TK2MSFTN GP02.phx.gbl...
                      >"Norman Diamond" <ndiamond@newsg roup.nospamwrot e in message
                      >news:eQTdxwYfI HA.4396@TK2MSFT NGP04.phx.gbl.. .
                      >>
                      >>>I vaguely remember working around a problem similar to that, by adding a
                      >>>scroll handler and calling the Invalidate method (to force a refresh).
                      >>
                      >what event did you handle ... on what object?
                      >
                      The Scroll event on a DataGridView. It looks like I didn't have that
                      problem with a ListView. I think you can catch the Scroll event on a
                      ListView too though.
                      no ... there's a scroll event in the docs for DataGridView but none for
                      ListView; am I missing something?

                      L


                        Comment

                        • Norman Diamond
                          #7
                          Re: ListView Grid Distortion

                          "Liz" <liz@tiredofspa m.comwrote in message
                          news:eO$sBPmfIH A.5904@TK2MSFTN GP06.phx.gbl...
                          "Norman Diamond" <ndiamond@newsg roup.nospamwrot e in message
                          news:O8m6lYlfIH A.4684@TK2MSFTN GP06.phx.gbl...
                          >"Liz" <liz@tiredofspa m.comwrote in message
                          >news:egvmxZcfI HA.1824@TK2MSFT NGP02.phx.gbl.. .
                          >>"Norman Diamond" <ndiamond@newsg roup.nospamwrot e in message
                          >>news:eQTdxwYf IHA.4396@TK2MSF TNGP04.phx.gbl. ..
                          >>>
                          >>>I vaguely remember working around a problem similar to that, by adding
                          >>>a scroll handler and calling the Invalidate method (to force a
                          >>>refresh).
                          >>>
                          >>what event did you handle ... on what object?
                          >>
                          >The Scroll event on a DataGridView. It looks like I didn't have that
                          >problem with a ListView. I think you can catch the Scroll event on a
                          >ListView too though.
                          >
                          no ... there's a scroll event in the docs for DataGridView but none for
                          ListView; am I missing something?
                          You're right, I just checked, and you and I are both missing an event that
                          just seems too sensible. I wonder why someone thought programmers wouldn't
                          need a Scroll event on a ListView.

                          The form itself has a Scroll event. If you handle that one and check to see
                          if the sender (of type Object) is your ListView, does that work?

                            Comment

                            • Liz
                              #8
                              Re: ListView Grid Distortion


                              "Claes Bergefall" <claes.bergefal l@nospam.nospam wrote in message
                              news:OMOSL0qfIH A.4164@TK2MSFTN GP05.phx.gbl...
                              FWIW, I have around 500 machines using a Matrox card with buggy drivers
                              that causes artifacts with a listview. I can't update though because the
                              new drivers are worse! I managed to work around the problem by lowering
                              the hardware acceleration a notch. Could be worth trying in your case.
                              thanks; this sounded promising but didn't pan out .. it's a strange problem
                              ... the *only* time I see distortion is when I click on the scoll bar
                              anywhere off of the slider ... anything else: arrow up, down, pgUp, pgDn,
                              using the slider to scroll, right-clicking on the scroll bar and selecting
                              "Scroll Here" ... all work without problem

                              L



                                Comment

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