TabItem Activation

[realJSOP]

There doesn't appear to be a tab item Activated event of any description. The only thing I've found that fires when a tab item is selected is the Loaded event, which is kinda - well - baffling. Am I missing something?

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

[Pete OHanlon]

No you're not, and there is a reason why it behaves this way. It's not a great reason, but it is a reason. Basically, there's only one ContentPresenter showing the contents of the selected tab. This means that the visuals are loaded "on the fly".

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

My blog | My articles | MoXAML PowerToys | Onyx

[Gideon Engelberth]

The TabControl has a SelectionChanged event that seems to fire every time a tab is selected. In that event you can get the new selection as TabControl.SelectedItem.

[realJSOP]

I don't need the tab control to know what tab item was selected. I need *the tab item* to know it's been selected. At this point, I'm reacting to the Loaded event (which is a two-bit hack work-around).

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

[realJSOP]

You're right - it's not a good reason. I've now got to monitor whether or not the tab is being created when the Loaded event is fired. It's starting to look like I have create an event myself, just to keep the chaos in the code to a frakking minimum. What a pile of crap...

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

[Gideon Engelberth]

Depending on what you are doing when the tab is selected (my psychic assistance is currently offline), I can think of two approaches. The first is to use a style with a trigger on the IsSelected property. The other approach would be to sub-class TabItem and override the OnSelected method.

[Jacobus01]

I Had the same problem and this was unfortunately the only solution I could think of. private void TendererTabControl_SelectionChanged(object sender, SelectionChangedEventArgs e) { try { if (e.AddedItems[0].GetType().Name == "TabItem") { TabItem SelectedTab = (TabItem)e.AddedItems[0]; if (SelectedTab.Header.ToString() == "Tenderers") { ..... } if (SelectedTab.Header.ToString() == "Contenders") { .... } } } catch (IndexOutOfRangeException) { }