Ribbonbar items shown as small when there is room enough

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Posted 13 years ago by Actipro Software Support - Cleveland, OH, USA

Hi Arthur,

Yes, it's probably your invisible groups that are causing it. Per Microsoft's specs you aren't really supposed to do that. Perhaps instead you could make separate class instances for your tab and have different variations of the tab that you swap in at app startup based on your criteria.

Actipro Software Support

Posted 13 years ago by Arthur Damen

Maybe i had to say they are collapsed in stead of invisible.

When I start the application i can start in 2 modes and mode 1 does never use a certain group. This is not rocketscience. But this complete groups has to disappear in that certain condition and is never used.

Why building 2 home tabs with the same content with exception of only 1 item???

Posted 13 years ago by Actipro Software Support - Cleveland, OH, USA

Hi Arthur,

Ribbon has to do some complex measurements on groups to build up a table of variants sizes, so that ribbon knows when to change variants and mimic the rich resizing functionality found in office. At the moment that code doesn't look for collapsed groups and I believe is probably measuring them the same way as normal visible ones.

If you'd like us to enhance this to support that scenario then please make a new simple sample project that shows the issue and email it to our support address. We will use it to debug with to ensure code updates fix the problem. Rename the .zip file extension so it doesn't get spam blocked.

Actipro Software Support

Posted 13 years ago by Arthur Damen

Example which shows the problem:
The outcome is that the width of the invisible area is calculated as being used.
When you resize the window, it still includes the invisible area....

Xaml window:


<rib:RibbonWindow x:Class="MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:rib="http://schemas.actiprosoftware.com/winfx/xaml/ribbon"
    Title="MainWindow" Height="350" Width="525">
  <Grid>
    <rib:Ribbon>
      <rib:Ribbon.Tabs>
        <rib:Tab>
          <rib:Group Label="Group1">
            <rib:Button Label="AAAAAA"></rib:Button>
          </rib:Group>

          <rib:Group Name="HiddenGroup" Label="Group2" >
            <rib:Button Label="BBBBBBBDHDJSHDKHSKJD"></rib:Button>
          </rib:Group>

          <rib:Group Label="Group2">
            <rib:Button Label="BBBBBBBDHDJSHDKHSKJD"></rib:Button>
          </rib:Group>

          <rib:Group Label="Group2">
            <rib:Button Label="BBBBBBBDHDJSHDKHSKJD"></rib:Button>
          </rib:Group>

        </rib:Tab>

      </rib:Ribbon.Tabs>
    </rib:Ribbon>
  </Grid>
</rib:RibbonWindow>

Code behind:


  Private Sub MainWindow_Loaded(sender As Object, e As System.Windows.RoutedEventArgs) Handles Me.Loaded
    HiddenGroup.Visibility = Windows.Visibility.Collapsed
  End Sub

Posted 13 years ago by Actipro Software Support - Cleveland, OH, USA

Hi Arthur,

I found that if you call this right after your Visibility switch, it seems to work:

HiddenGroup.InvalidateVariants();

Actipro Software Support

Posted 13 years ago by Arthur Damen

Thanks, this helps.

But could this be changed. Looks like a bug to me.
It is very annoying.
Couldn't be that hard to calculate the actualwidth internally.

The latest build of this product (v24.1.5) was released 1 month ago, which was after the last post in this thread.

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