Where would I find RadDesktopAlertManager in Q1 2015 version of "UI for WPF". 

According to current documentation, I should find RadDesktopAlertManager in 
Namespace: Telerik.Windows.Controls
Assembly: Telerik.Windows.Controls.Navigation (in Telerik.Windows.Controls.Navigation.dll) Version: 2017.2.502.40 (2017.2.502.40)

However, for Q1 2015 version, I do not find it. Was it somewhere else, back in 2015?

Searched forum and couldn't find a related issue. I'm using the PanelBar as Accordion. When a Panel bar item is selected it is displayed, but when the same panel bar item is selected agan it's collapsed. Can this behavior be prevented

If a panelbar item is already selected it stay selected and do not collapses. That means I want "ALWAYS" a panel bar item to be visible.

I'd rather prefer a XAML only solution.

Regards

my wpf is 2017.r2  

I add ribbon into my  empty wpf project, and the designer seem work , just like I  click  `ribbon tab add`  button , it can not work 

Using the RadMaskedTextInput with Mask="(###) ###-####",  I type in a phone # of (111) 222-3333, then copy it. The clipboard has "(111) 222-3333", but when I paste it into another RadMaskedTextInput control with the same properties or even copy it back to the same control the result value is "(111)  22-2333".  It doesn't seem to know what to do with the space between the ")" and the "2". Is there some property I need to set to make the control work properly? 

Yes, I know I can extend the control and override the HandlePaste to remove the spaces of the clipboard text before pasting into the control, but there must be another way to make it work.

Thanks in advance.

Steve

In GridViewRowTemplate - ValueStates - RowInvalid VisualState, there is a storyboard to change ErrorIndicator.Visibility to Visible, but how can I change it in code behide?

I've tried

,but it seems no working.

1.

I have a radgridview, which contains RadRibbonGroups, which contains comboxboxes and textboxes.

However, I would also like to be able to resize the textboxes and comboboxes in the medium state. I could program it in XAML if I knew how to bind to  the RadRibbonGroup to get the current variant used. Or how to use wrap my controls in RadCollapsiblePanel inside the ribbongroup and bind to a property which contains the current state (small, medium, large).

? Is there a way to bind to the the current size variant of the group? I dont know which property to use.

2.

On another RadGridView, the RadRibbonGroups does not contain RadCollapsiblePabel and when it collapses, it collapses into a single collapse into a single button with an (ugly) standard picture.

? Is there any way to change this picture?

Thanks