WPF- Changing Tooltip background to Transparent

问题

I am attempting to make it so that when I hover over a button in my application, the "tooltip" displays my wording, along with a transparent background, instead of the white background.

I am merely trying to change the tooltip default settings to a transparent background..

I have looked and looked, but to no success.. anyone have any ideas?

Thanks.

回答1:

<Style x:Key="{x:Type ToolTip}"
       TargetType="{x:Type ToolTip}">
    <Setter Property="Background"
            Value="Transparent" />
</Style>

Place this in the resource dictionary of your view, or for your application.

回答2:

And this is the final style which sets the tooltip background to transparent:

<Style TargetType="{x:Type ToolTip}">
    <Setter Property="Background" Value="Transparent"/>
    <Setter Property="BorderBrush" Value="Transparent"/>
</Style>

Note that you need to set also the BorderBrush to Transparent, not only the Background.

回答3:

The class ToolTip has property Background. See http://msdn.microsoft.com/en-us//library/system.windows.controls.tooltip_members.aspx. You can set Background to Transparent.

来源：https://stackoverflow.com/questions/2314856/wpf-changing-tooltip-background-to-transparent