如何将控件的属性绑定到另一个控件的属性?
问题描述:
我希望禁用表单时消失我表单中的SaveButton. 我这样做是这样的:
I want that the SaveButton from my form to dissapear when the form is disabled. I do that this way:
this.formStackPanel.IsEnabled = someValue;
if(this.formStackPanel.IsEnabled)
{
this.saveButton.Visibility = Visibility.Visible;
}
else
{
this.saveButton.Visibility = Visibility.Collapsed;
}
在XAML中没有绑定这些属性的方法吗?有更好的方法吗?
Isn't there a way of binding those properties in the XAML? Is there a better way of doing that?
答
是.您应该能够将堆栈面板的IsEnabled绑定到按钮的Visibility属性.但是,您需要一个转换器. WPF带有一个BooleanToVisibilityConverter类,该类可以完成这项工作.
Yes. You should be able to bind the stackpanel's IsEnabled to your button's Visibility property. However, you need a converter. WPF comes with a BooleanToVisibilityConverter class that should do the job.
<Window
x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Window.Resources>
<BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter"/>
</Window.Resources>
<StackPanel>
<ToggleButton x:Name="toggleButton" Content="Toggle"/>
<TextBlock
Text="Some text"
Visibility="{Binding IsChecked, ElementName=toggleButton, Converter={StaticResource BooleanToVisibilityConverter}}"/>
</StackPanel>
</Window>