启用/禁用 wpf 应用程序中所有控件的工具提示

问题描述 投票:0回答:4

我正在编写一个 WPF 应用程序,它有很多不同的控件,每个控件都有自己的

ToolTip
。虽然
ToolTips
很有用,但其中一些很长并且很碍事。

我希望能够创建一个按钮,单击该按钮即可启用和禁用应用程序上的所有工具提示。我一直在做的事情似乎是一个非常漫长且不必要的方法。有没有办法快速完成我想要的事情?

c# wpf tooltip
4个回答
5
投票

您可以尝试添加一个隐式样式,将所有顶级窗口的所有

Visbility
ToolTips
属性设置为
Collapsed
。像这样的东西:

private bool _isToolTipVisible = true;
private void Button_Click(object sender, RoutedEventArgs e)
{
    Style style = new Style(typeof(ToolTip));
    style.Setters.Add(new Setter(UIElement.VisibilityProperty, Visibility.Collapsed));
    style.Seal();

    foreach (Window window in Application.Current.Windows)
    {
        if (_isToolTipVisible)
        {
            window.Resources.Add(typeof(ToolTip), style); //hide
            _isToolTipVisible = false;
        }
        else
        {
            window.Resources.Remove(typeof(ToolTip)); //show
            _isToolTipVisible = true;
        }
    }
}

1
投票

您可以将全局工具提示样式添加到应用程序资源中:

<Application.Resources>
    <Style TargetType="{x:Type ToolTip}">
        <Setter Property="Template" Value="{x:Null}" />
    </Style>
</Application.Resources>

这会禁用所有工具提示。

要切换使用以下内容:

Style _style;

void Button_Click(object sender, RoutedEventArgs e)
{
    if (_style == null)
    {
        _style = (Style)Application.Current.Resources[typeof(ToolTip)];
        Application.Current.Resources.Remove(typeof(ToolTip));
    }
    else
        Application.Current.Resources.Add(typeof(ToolTip), _style);

}

1
投票

我需要有可以关闭的自定义工具提示。其他解决方案并没有完全涵盖这一点,所以这就是我最终所做的......

此代码允许您拥有自定义提示,并轻松在应用程序范围内打开和关闭它们。就我而言,我将工具提示可见性保存在用户设置中。该设置应用于主窗口加载,然后在设置更改时更新。

App.xaml

<Style x:Key="{x:Type ToolTip}" TargetType="ToolTip">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="ToolTip">
                <Border Name="Border" BorderThickness="1" Background="PaleGoldenrod" CornerRadius="4" BorderBrush="Black">
                    <ContentPresenter Margin="4"/>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
    ... various other settings
</Style>

<Style x:Key="NoTip" TargetType="ToolTip">
    <Setter Property="Visibility" Value="Collapsed"/>
</Style>

然后,在我的 MainWindow.xaml.cs 中(但可以去任何您要更改提示可见性的地方):

private Style styleWithTips;
private Style styleNoTips;
...
private void Window_Loaded(object sender, RoutedEventArgs e)
{
    // Set initial tips on/off
    styleWithTips = (Style)Application.Current.Resources[typeof(ToolTip)];
    styleNoTips = (Style)Application.Current.Resources["NoTip"];
    updateTipStyle();
}

private void Settings_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
    if (e.PropertyName == "ShowHints")
    {
        updateTipStyle();
    }
}
...
private void updateTipStyle()
{
    ResourceDictionary resources = Application.Current.Resources;
    bool showHints = Properties.Settings.Default.ShowHints;
    if (resources.Contains(typeof(ToolTip)))
    {
        resources.Remove(typeof(ToolTip));
    }
    resources.Add(typeof(ToolTip), showHints ? styleWithTips: styleNoTips);
}

0
投票

这是这个问题后来的回答,但我想可能还是能有效解决问题。我需要打开/关闭已禁用的用户控件的工具提示。这是我的解决方案:

ObservableObject.cs

    public class ObservableObject : INotifyPropertyChanged
{
    public event PropertyChangedEventHandler PropertyChanged;

    protected void OnPropertyChanged(string name)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(name));
        }
    }

    /// <summary>
    /// Raises this object's PropertyChanged event.
    /// </summary>
    /// <typeparam name="T">The type of the property that has a new value.</typeparam>
    /// <param name="propertyExpression">A Lambda expression representing the property that has a new value.</param>
    protected void RaisePropertyChanged<T>(Expression<Func<T>> propertyExpression)
    {
        var memberExpr = propertyExpression.Body as MemberExpression;
        if (memberExpr == null)
            throw new ArgumentException("propertyExpression should represent access to a member");
        string memberName = memberExpr.Member.Name;
        OnPropertyChanged(memberName);
    }


}

BooltoOppositeBoolConverter.cs

public class BoolToOppositeBoolConverter : IValueConverter

{ 公共对象转换(对象值,类型目标类型,对象参数,CultureInfo文化) { if (目标类型!= typeof(bool)) { throw new InvalidOperationException("目标必须是布尔值"); }

    return !(bool)value;
}

public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
    throw new NotImplementedException();
}

MainViewModel.cs 片段

    public class MainViewModel : ObservableObject

{ 私人布尔_isA1ThruA4Enabled = true;

    public bool IsA1ThruA4Enabled
    {
        get { return _isA1ThruA4Enabled; }
        set 
        {
            _isA1ThruA4Enabled = value;
            OnPropertyChanged("IsA1ThruA4Enabled");
        }
    }

主窗口.xaml

                    <Grid x:Name="gridAnalogVoltsViewingRow" Grid.Row="2"
                      IsEnabled="{Binding IsA1ThruA4Enabled,
                                          Mode=TwoWay,
                                          UpdateSourceTrigger=PropertyChanged}"
                      ToolTip="This control is disabled because no RS11 model connected. "
                      ToolTipService.ShowOnDisabled="True"
                      ToolTipService.IsEnabled="{Binding IsA1ThruA4Enabled, Converter={StaticResource InvertBoolConverter} }">
                    <dataTerminalView:AnalogDisplayValueView x:Name="analogVoltsViewer">
                        <dataTerminalView:AnalogDisplayValueView.BitmapEffect>
                            <DropShadowBitmapEffect Color="Black" Direction="315"
                                     Softness="0.5" ShadowDepth="10" Opacity="0.5" />
                        </dataTerminalView:AnalogDisplayValueView.BitmapEffect>
                    </dataTerminalView:AnalogDisplayValueView>
                </Grid>

我希望这对某人有帮助。

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