Question

I got another problem while working with my usercontrol’s xaml file -.-‘

I tried to implement an IsChecked property to my custom button in order to set a different background colour if the button is checked.

So I created a DependencyProperty like this:

public static readonly DependencyProperty IsCheckedProperty = DependencyProperty.Register("IsChecked", typeof(bool), typeof(LeftMenuBtn));

public bool IsChecked
{
    get { return (bool)GetValue(IsCheckedProperty); }
    set { SetValue(IsCheckedProperty, value); }
}

Then I setup a new style trigger to handle this property:

<Style x:Key="ButtonEnableStates" TargetType="{x:Type Grid}">
    <Style.Triggers>
        <Trigger Property="IsChecked" Value="True">
            <Setter Property="Background" Value="{DynamicResource CheckedStateGradient}" />
        </Trigger>
    </Style.Triggers>
</Style>

Expression Blend now underlines Property="IsChecked" and says:

The member "IsChecked" is not recognized or is not accessible.

How can I solve this problem?

Answer 1

Well, the Style‘s TargetType is Grid and the property is defined for LeftMenuBtn, not going to work like that.