C# WPF警报控制类似于StackOverflow
寻找一个WPF控件,该控件类似于SO如何使用Javascript在浏览器顶部显示警报(如下所述) 有一组WPF控件用于显示在systray上方的通知 但是,我希望在当前窗口或用户控件的顶部显示消息,并进行定时淡出,以保持消息本地/相关C# WPF警报控制类似于StackOverflow,c#,.net,wpf,C#,.net,Wpf,寻找一个WPF控件,该控件类似于SO如何使用Javascript在浏览器顶部显示警报(如下所述) 有一组WPF控件用于显示在systray上方的通知 但是,我希望在当前窗口或用户控件的顶部显示消息,并进行定时淡出,以保持消息本地/相关 我是WPF新手,因此不确定如何将上面链接的控件定位到当前窗口/用户控件的顶部-任何提示/指针都值得欣赏使用DockPanel作为窗口内的基本面板。将usercontrol设置为DockPanel.Dock=Top。使用另一个面板填充剩余空间 至于淡出,您可以根
我是WPF新手,因此不确定如何将上面链接的控件定位到当前窗口/用户控件的顶部-任何提示/指针都值得欣赏使用DockPanel作为窗口内的基本面板。将usercontrol设置为DockPanel.Dock=Top。使用另一个面板填充剩余空间 至于淡出,您可以根据计时器设置整个用户控件的不透明度的动画,当不透明度达到0时,将可见性设置为“折叠”,这样它就不会再占用空间了。试试这个 代码隐藏
public partial class dtfromdataset : Window
{
public dtfromdataset()
{
InitializeComponent();
this.DataContext = this;
time.Interval = 5000;
time.Elapsed += new ElapsedEventHandler(time_Elapsed);
time.Start();
}
Timer time = new Timer();
void time_Elapsed(object sender, ElapsedEventArgs e)
{
Dispatcher.BeginInvoke(new Action(() =>
{
StatusBarText = "Time is " + DateTime.Now.ToString("ddd-MM-yy HH:mm:ss tt");
}));
}
private DataTable dt = new DataTable();
public string StatusBarText
{
get { return (string)GetValue(StatusBarTextProperty); }
set { SetValue(StatusBarTextProperty, value); }
}
// Using a DependencyProperty as the backing store for StatusBarText. This enables animation, styling, binding, etc...
public static readonly DependencyProperty StatusBarTextProperty =
DependencyProperty.Register("StatusBarText", typeof(string), typeof(dtfromdataset), new UIPropertyMetadata(""));
}
Xaml
<Grid Name="stackPanel1">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="224*" />
</Grid.RowDefinitions>
<TextBlock Name="statusText"
Grid.Row="0"
HorizontalAlignment="Stretch"
Background="Silver"
FontSize="20"
Text="{Binding Path=StatusBarText,
NotifyOnTargetUpdated=True}"
TextAlignment="Center">
<TextBlock.Triggers>
<EventTrigger RoutedEvent="Binding.TargetUpdated">
<BeginStoryboard>
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity">
<EasingDoubleKeyFrame KeyTime="0" Value="0" />
<EasingDoubleKeyFrame KeyTime="0:0:0.25" Value="1" />
<EasingDoubleKeyFrame KeyTime="0:0:4" Value="1" />
<EasingDoubleKeyFrame KeyTime="0:0:5" Value="0" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</TextBlock.Triggers>
</TextBlock>
</Grid>