WPF Rectangle does not have a Click event

问题

It seems that the WPF Rectangle shape does not have the Click event defined. What am I supposed to use instead?

It does have MouseUp, but it's not quite the same behavior.

回答1:

If you're not happy with MouseDown and MouseUp, perhaps you could just put the Rectangle in a Button and handle the Button's Click event?

<Button>
    <Button.Template>
        <ControlTemplate>
            <Rectangle .../>
        </ControlTemplate>
    </Button.Template>
</Button>

It really depends with the behavior you're after. Please elaborate if needs be.

回答2:

To add click handing to a Rectangle itself, you can use the InputBindings property:

<Rectangle Fill="Blue" Stroke="Black">
    <Rectangle.InputBindings>
        <MouseBinding Gesture="LeftClick" Command="{Binding FooCommand}"/>
    </Rectangle.InputBindings>
</Rectangle>

This will cause the FooCommand to be executed when the rectangle is clicked. Handy if you're using MVVM!

回答3:

I was looking for the related DoubleClick event and came across this suggestion to simply embed the object of interest in a ContentControl.

Here is their example (with a border, which also did not support click/double click).

<ContentControl MouseDoubleClick="OnDoubleClick">
    <Border Margin="10" BorderBrush="Black" BorderThickness="2">
        <Grid Margin="4">
            <Rectangle Fill="Red" />
            <TextBlock Text="Hello" FontSize="15" />
        </Grid>
    </Border>
</ContentControl>

回答4:

Rectangle has event Tapped, which works fine. In designing universal apps for Windows 8.1, there are new events. Tapped, DoubleTaped, RightTapped and Holding.

来源：https://stackoverflow.com/questions/1068979/wpf-rectangle-does-not-have-a-click-event

标签

wpf

events

shapes