I have a WPF application that has a list to which I am trying to apply some mouseover effects. Everything works fine when I use simple Setterto change the background color on mouseover / selection, but I decided that it would look better if it animated between states, so I switched Setterfor input / output Storyboards. All this works fine at first (animation with the mouse back and forth, selection of animation inside and out), but as soon as something has been selected and then deleted, it will never activate the mouse effect again.
Here is an example of minimal code to show the problem:
<Window x:Class="WpfTest.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="500" Width="500">
<Window.Resources>
<Style x:Key="ListboxItemStyle" TargetType="{x:Type ListBoxItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListBoxItem}">
<Border x:Name="border" BorderThickness="1" Height="50" Background="#000">
<ContentPresenter />
</Border>
<ControlTemplate.Triggers>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsMouseOver" Value="True" />
<Condition Property="IsSelected" Value="False" />
</MultiTrigger.Conditions>
<MultiTrigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation Duration="0:0:0.15" Storyboard.TargetName="border"
Storyboard.TargetProperty="Background.Color" To="#00F" />
</Storyboard>
</BeginStoryboard>
</MultiTrigger.EnterActions>
<MultiTrigger.ExitActions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation Duration="0:0:0.3" Storyboard.TargetName="border"
Storyboard.TargetProperty="Background.Color" To="#008" />
</Storyboard>
</BeginStoryboard>
</MultiTrigger.ExitActions>
</MultiTrigger>
<Trigger Property="IsSelected" Value="True">
<Trigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation Duration="0:0:0.15" Storyboard.TargetName="border"
Storyboard.TargetProperty="Background.Color" To="#F00" />
</Storyboard>
</BeginStoryboard>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation Duration="0:0:0.3" Storyboard.TargetName="border"
Storyboard.TargetProperty="Background.Color" To="#800" />
</Storyboard>
</BeginStoryboard>
</Trigger.ExitActions>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
<Grid>
<ListBox x:Name="ConnectedDevicesListBox"
ItemContainerStyle="{DynamicResource ListboxItemStyle}" >
<ListItem/>
<ListItem/>
<ListItem/>
<ListItem/>
<ListItem/>
<ListItem/>
<ListItem/>
<ListItem/>
</ListBox>
</Grid>
</Window>
, , IsSelected.
?