CODEWITHSUNDEEP
wpftriggerswpf-controlswpf-style
Artak Khachatryan
Artak Khachatryan

Reputation: 311

WPF Label IsMouseOver style doesn't work after click

I have a label in my UI and have a style for it.

<Style x:Key="ColorChangingLabel" TargetType="{x:Type Label}">
    <Setter Property="FontSize" Value="13"></Setter>
    <Setter Property="Foreground" Value="#ff676767"></Setter>
    <Setter Property="Background" Value="White"></Setter>
    <Style.Triggers>
        <Trigger Property="IsMouseOver" Value="True">
            <Setter Property="Background" Value="#ffEAECEE"></Setter>
            <Setter Property="Foreground" Value="#ff0067B0"></Setter>
        </Trigger>
    </Style.Triggers>
</Style>

Besides MouseOver trigger i also want to set the same property values when the label is clicked(as click event is not available for label i use MouseDown event). Here is MouseDown event code

private void myLabel_MouseDown(object sender, MouseButtonEventArgs e){
     myLabel.Foreground = new SolidColorBrush(Color.FromArgb(0xff, 0x00, 0x67, 0xB0));
     myLabel.Background = new SolidColorBrush(Color.FromArgb(0xff, 0xea, 0xec, 0xee));
}

So my problem is if i mouse down on my label, after it my MouseOver style is never applied to my label. I know about style overriding, but don't know how to get rid of this.

Upvotes: 0

Views: 718

Answers (1)

Mike Strobel
Mike Strobel

Reputation: 25623

Your MouseDown handler is setting a local value for the Foreground and Background, and local values take precedence over all other value sources, including those set by triggers and setters. See Dependency Property Value Precedence on MSDN for more information.

Use SetCurrentValue to change the current property value without switching to a local value:

myLabel.SetCurrentValue(
    Control.ForegroundProperty,
    SolidColorBrush(Color.FromArgb(0xff, 0x00, 0x67, 0xB0)));

Alternatively, apply a custom style to myLabel that uses triggers to change the Foreground and Background, and get rid of the event handler altogether.

Upvotes: 1

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