c# - Unable to style WPF ComboBox on Mouse Hover

Question

Does anyone know how to style the background property of a WPF ComboBox when a mouse is hovering on top of it?

I cannot get rid of the blue-ish button like background off the ComboBox.

Answer 1

You can style it like anything else:

<Style TargetType="{x:Type ComboBox}" x:Key="HoverBox">
   <Style.Triggers>
        <Trigger Property="IsMouseOver" Value="True">
            <Setter Property="Background" Value="Blue" />
        </Trigger>
    </Style.Triggers>
</Style>

usage:

<ComboBox Style="{StaticResource HoverBox}" ... />

And at the top of your UserControl/ Window you have to place the style:

<UserControl...>
    <UserControl.Resources>

         <Style TargetType="{x:Type ComboBox}" x:Key="HoverBox">
            <Style.Triggers>
                <Trigger Property="IsMouseOver" Value="True">
                    <Setter Property="Background" Value="Blue" />
                </Trigger>
            </Style.Triggers>
        </Style>

    </UserControl.Resources>

[CONTENT HERE]

</UserControl>