WPF binding visibility

Question

I have label that shoul be visible when RadioButton First or Second IsChecked=true and Collapsed when Third or Fourth IsChecked=false. Is it only one way to do it pass name of the button to the converter and in converter decide should it be collapsed or visible?

<Grid>
    <Grid.RowDefinitions>
        <RowDefinition></RowDefinition>
        <RowDefinition></RowDefinition>
    </Grid.RowDefinitions>
    <StackPanel Orientation="Vertical">
        <RadioButton Content="Visible" x:Name="First"></RadioButton>
        <RadioButton Content="Visible" x:Name="Second"></RadioButton>
        <RadioButton Content="Collapsed" x:Name="Third"/>
        <RadioButton Content="Collapsed" x:Name="Fourth"></RadioButton>
    </StackPanel>
    <Label Content="Test" Grid.Row="1"></Label>
</Grid>

Start with Binding the isSelected – paparazzo Oct 04 '16 at 16:25 — paparazzo, Oct 04 '16 at 16:25

score 4 · Accepted Answer · edited May 23 '17 at 12:00

4

You can implement IMultiValueConverter and use it to bind Visibility to several values. You can find example here

edited May 23 '17 at 12:00

Community

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1

answered Oct 04 '16 at 14:05

tym32167

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score 0 · Answer 2 · answered Oct 04 '16 at 17:12

I suggest using the MVVM pattern with a framework like MVVM Light. Then in the View Model, you can have a property for LabelVisiblity that the Label binds to.

If the MVVM pattern is not an option, you could add events handlers for each CheckBox's Checked event. Then set the Visility there.

    public MainWindow()
    {
        InitializeComponent();

        textBlock.Visibility = Visibility.Collapsed;

        option1.Checked += Option_Checked;
        option2.Checked += Option_Checked;
        option3.Checked += Option_Checked;
        option4.Checked += Option_Checked;
    }

    private void Option_Checked(object sender, RoutedEventArgs e)
    {
        var option = (sender as RadioButton);
        if (option.Name == "option1" || option.Name == "option2")
            textBlock.Visibility = Visibility.Collapsed;
        else
            textBlock.Visibility = Visibility.Visible;

    }

WPF binding visibility

2 Answers2