ContextualTabs visibility problem

[bochelie1000]

Environment

• Fluent.Ribbon v7.0.0-alpha0456 and before
• Windows 7
• .NET Framework 4.6.1 and lower

There is an issue that ContextualTabs or Tabs will not be drawn correctly or even be shown if the visibility is set in begin code on startup.

I attached a repro. To reproduce:

-Start the application.
-Click on Buttons 1 and 2 on the home tab.
-This will change the next tabs.
-This works fine. You will see the Tab with header 11111 and the tab with header 22222 depending which button you click.

-Now stop the application.
-Go to the behind code and activate the 3 lines after the InitializeComponent method.

-Restart the application.

-Click button 1 and 2 on the Home tab.
-See how the next tab is not working correctly.

Once again I realy appreciate all the effort you put into this great Ribbon.

Regards

CTabsTest 2.zip

[batzen]

Well, i am not sure i really should consider this a bug in the ribbon.
The problem with your code is that it sets a local value for Visibility and there are style triggers which try to modify the value, but as it's a local value the triggers can't modify the value as it's impossible to overwrite local set properties from style triggers.

What's your use case for this? What are you trying to achieve?
One way to solve your issue would be to use an inherited style and set the values from style setters instead of using a local value.

[bochelie1000]

Well I was just trying to change the visibility of the tabs when the user clicks on a button in the ribbon. I needed some tabs to be hidden on startup. My solution was to not change the visibility in the Initialize method. I changed the way my app works so that there is no need to hide those tabs on startup.

After the app is loaded I can change the visibility in behind code without any problem as you can see in the button_click method. That is why I thought it was a bug.

[batzen]

In your app the button click only modifies the groups visibility.
You can control/trigger visibility in two ways:

• hiding the group hides all tabs contained in the group
• hiding all tabs of a group hides the group

If visibility is set manually on a tab or group that value can't be overwritten be the style triggers.

[bochelie1000]

Ok, good to know.

[batzen]

Do have any further questions or can we close this issue?

[bochelie1000]

No. It can be closed. Thanks.

[batzen]

As this issue was reported again with #673 i had another look and found a solution.

[bochelie1000]

Great! Thanks!