关于WPF中ToolTip的绑定问题
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所有回答(1)
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帮你写了一个，可以实现。不知道是不是你想要的。
xaml中 MouseEnter="UserControl_MouseEnter"
<Canvas Width="300" Height="300">
<Button Width="100" Height="30" Canvas.Left="27" Canvas.Top="31">
</Button>
<Button Canvas.Left="162" Canvas.Top="92" Content="Button" Height="23" Name="button1" Width="75"/>
<Canvas.ToolTip>
<StackPanel>
<TextBlock Text="{Binding ButtonWidth}"/>
<TextBlock Text="{Binding ButtonHeight}"/>
</StackPanel>
</Canvas.ToolTip>
</Canvas>
<Button Width="100" Height="30" Canvas.Left="27" Canvas.Top="31">
</Button>
<Button Canvas.Left="162" Canvas.Top="92" Content="Button" Height="23" Name="button1" Width="75"/>
<Canvas.ToolTip>
<StackPanel>
<TextBlock Text="{Binding ButtonWidth}"/>
<TextBlock Text="{Binding ButtonHeight}"/>
</StackPanel>
</Canvas.ToolTip>
</Canvas>
publicpartialclass FindButton : UserControl
{
public FindButton()
{
InitializeComponent();
this.DataContext =this;
}
publicdouble ButtonWidth { get; set; }
publicdouble ButtonHeight { get; set; }
privatevoid UserControl_MouseEnter(object sender, MouseEventArgs e)
{
var canvas = sender as UserControl;
if (canvas==null)
return;
var point = e.GetPosition(canvas);
var dp = canvas.InputHitTest(point) as DependencyObject;
var btn = dp.FindAncestor<Button>();
if (btn==null) return;
ButtonWidth = btn.Width;
ButtonHeight = btn.Height;
}
}
{
public FindButton()
{
InitializeComponent();
this.DataContext =this;
}
publicdouble ButtonWidth { get; set; }
publicdouble ButtonHeight { get; set; }
privatevoid UserControl_MouseEnter(object sender, MouseEventArgs e)
{
var canvas = sender as UserControl;
if (canvas==null)
return;
var point = e.GetPosition(canvas);
var dp = canvas.InputHitTest(point) as DependencyObject;
var btn = dp.FindAncestor<Button>();
if (btn==null) return;
ButtonWidth = btn.Width;
ButtonHeight = btn.Height;
}
}
