Image Quality Problem in ReportViewer WPF

2 posts, 0 answers
  1. Michael
    Michael avatar
    7 posts
    Member since:
    May 2015

    Posted 26 Sep 2017 Link to this post


    we have a problem with displaying images in the PictureBox.

    Within the designer, all images are displayed in good quality.

    Also in the preview of the report in Visual Studio, all images are displayed in good quality.

    If we start the application and display the report via the report viewer, all images are displayed in a poorer quality.

    What could be the problem?

  2. Ivan Hristov
    Ivan Hristov avatar
    173 posts

    Posted 28 Sep 2017 Link to this post

    Hi Michael,

    The quality of the images in PictureBox item is mostly decreased when a scaling is applied. The renderer does not apply antialiasing or any other bitmap scaling mode when drawing the PictureBox's contents, because it would slow down the rendering process. So when drawing images, we use the default scaling mode (Linear), which provides the fastest processing.

    Based on users demand, we will introduce a Device Information setting that will allow the user to control the bitmap scaling mode when rendering in WPFXAML and WPFXAMLInteractive formats. Once it passes the testing stage, this improvement will be included in a subsequent release of our product. 

    Ivan Hristov
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