如何将CheckBox的IsChecked成员绑定到表单中的成员变量？
(我意识到我可以直接访问它,但我正在尝试学习数据绑定和WPF)
以下是我尝试让这个工作失败的尝试.
XAML：
<Window x:Class="MyProject.Form1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Title" Height="386" Width="563" WindowStyle="SingleBorderWindow">
<Grid>
<CheckBox Name="checkBoxShowPending"
TabIndex="2" Margin="0,12,30,0"
Checked="checkBoxShowPending_CheckedChanged"
Height="17" Width="92"
VerticalAlignment="Top" HorizontalAlignment="Right"
Content="Show Pending" IsChecked="{Binding ShowPending}">
</CheckBox>
</Grid>
</Window>
码：
namespace MyProject
{
public partial class Form1 : Window
{
private ListViewColumnSorter lvwColumnSorter;
public bool? ShowPending
{
get { return this.showPending; }
set { this.showPending = value; }
}
private bool showPending = false;
private void checkBoxShowPending_CheckedChanged(object sender,EventArgs e)
{
//checking showPending.Value here. It's always false
}
}
}
解决方法
<Window ... Name="MyWindow">
<Grid>
<CheckBox ... IsChecked="{Binding ElementName=MyWindow,Path=ShowPending}"/>
</Grid>
</Window>
注意我添加了一个名称< Window>,并更改了CheckBox中的绑定.如果您希望它在更改时能够更新,您还需要将ShowPending实现为DependencyProperty.
