Ribbon issue with 120 DPI and OpenFileDialog when maximized

Ribbon issue with 120 DPI and OpenFileDialog when maximized

Posted by: mhamilton on 28 November 2018, 6:16 pm EST

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  mhamilton

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  Posted 28 November 2018, 6:16 pm EST

  Hello,

  I’m having an issue where a C1Ribbon flickers and the title arear changes to transparent whenever a OpenFileDialog is opened and then closed from the ribbon application when maximized. The form is DPI aware running on Win10 1809 using a 120 DPI and the ribbon runtime version is v4.0.30319.

  Everything scales good then the Open File command opens the file dialog which causes the form to flicker and the ribbon font to go a weird white/blue. If the Open File dialog is then canceled the top of the ribbon goes transparent.

  Note the application must be maximized for this to occur, but there is still flickering even when not maximized, but it will fix itself if the same steps are repeated when the application is not maximized.

  I attached a modified WordPad example that exhibits the behavior and three screen shots showing the ribbon issues.

  Thanks!Ribbon-Issue.zip

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  lars.dankenbrink

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  Posted 3 December 2018, 6:38 am EST - Updated 4 October 2022, 1:31 am EST

  Hello,

  in our application problem exists too.

  Actual used component of C1.Win.C1Ribbon.4 is 4.0.20183.338.
  
  DPI-setting ist standard (100 DPI).
  
  Our default visual-style is “Office 2007 Black”.

  I would add two screenshots of how the MDI-Window looks after opening and canceling an open- or save-dialog: Window-top gets transparent and control-box for closing, maximizing and so on disappears. Please see attachment named “Maximized.jpg”.

  First I thought it’s a (re-)drawing-issue, so I give the advise to turn to normal window-state and than back to maximized. But that didn’t help. See also attachment named “Normal.jpg”.

  Using newest drivers for Intel 4600 Graphics or Nvidia GeForce didn’t make any difference on this. Problem stays.

  As said by mhamilton, problem is only on machines with Windows 10 (Build 1809).

  Maximized.jpg
  
  

  

  1681×1009 97.5 KB

  Normal.jpg
  
  

  

  1286×995 92.3 KB

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  mohitg

  

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  Posted 4 December 2018, 7:31 am EST

  Hello,

  This is the known issue(354760). Will inform you once the issue has been fixed.

  Thanks.

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  peiffer

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  Posted 19 February 2019, 12:21 pm EST

  Hello,
  
  we are facing the same problem.

  Is there any update or known workaround for this issue?

  Could you provide a link to the “known issue(354760)” you mentioned?

  Thanks!

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  mohitg

  

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  Posted 22 February 2019, 9:55 am EST

  Hello,

  Issue is fixed in the latest build. Please download from the following link:

  http://prerelease.componentone.com/dotnet40/c1webchart/2018-t3/C1WebChart.4_4.0.20183.343.zip

  Could you provide a link to the “known issue(354760)” you mentioned?
  
  Sorry to mention that this ID is for internal purpose only.

  Thanks.