Clickable area sort indicator issue

Clickable area sort indicator issue

Posted by: p.feenstra on 21 July 2021, 3:29 am EST

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  p.feenstra

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  Posted 21 July 2021, 3:29 am EST - Updated 30 September 2022, 1:15 pm EST

  The clickable area is not scaled on higher dpi screens.
  
  Now we can’t scale the owner-drawn indicators because then if we click on them, the click action will not always be performed.
  
  On the attached images the clickable area is indicated with a red line.
  
  I would really appreciate if this problem could finally be solved.

  Regards Piet

  

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  jitender.yadav

  

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  Posted 22 July 2021, 9:03 am EST

  Hi Piet,

  Can you please mention how you are drawing custom sort indicators (using PaintSortIndicator method of ColumnHeader renderer or using SortAscending[Descending]Image)? Also, if you’ve enabled Spread to use High Dpi settings:
  
  https://www.grapecity.com/spreadnet/docs/v14/online-win/spwin-dpisupport.html

  If possible, please attach a sample application so that we can investigate it.

  Thanks,
  
  Jitender

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  p.feenstra

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  Posted 22 July 2021, 10:22 am EST

  Jitender,

  I’m inheriting from the FlatColumnHeaderRenderer and override amongst other PaintSortIndicator. I do not use an image.
  
  The High Dpi Settings are enabled. ZoomDpiSupport on gives the same result.
  
  The problem is that the rectangle always stays the same.
  
  R12 suffers from the same.

  You only have to check the rectangle size. (should be easy)

  Regards Piet

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  jitender.yadav

  

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  Posted 23 July 2021, 3:48 am EST

  Hi Piet,

  How are you using PaintSortIndicator? The rectangle size will remain the same, any changes due to scaling should be handled using the zoomFactor argument of PaintSortIndicator.

  Let me know if I’m missing anything.

  Regards,
  
  Jitender

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  p.feenstra

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  Posted 23 July 2021, 6:09 am EST

  Hi Jitender,

  The ZoomFactor works okay but imho dpi scaling is something else.
  
  The size of the rectangle should be ‘zoomfactor * scalefactor’
  
  Fonts etc. are scaled by dpi but at my end the (clickable) rectangle is not.

  Regards Piet

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  jitender.yadav

  

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  Posted 23 July 2021, 9:18 am EST

  Piet,

  We are discussing this issue with the developers [SPNET-18999]. I’ll update this thread once we get some more information on this.

  Regards,
  
  Jitender

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  p.feenstra

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  Posted 4 January 2022, 2:40 pm EST

  Hi Avnish,

  The example you sent works.
  
  So I’ve made a new project based on that code and added the most important things from the original project with the issue.
  
  Even copied the app.config and the manifest file to the new project.
  
  It all works as expected. But in the original project it does not.
  
  I narrowed it down to the setting ZoomDpiSupport. It doesn’t seem to do anything in my project.
  
  Can you think of a setting (or missing reference) that causes this behaviour?

  Regards Piet