我有一个想要放入 FixedDocument 的用户控件,但在此之前我需要更改标签的文本。我想我需要使用依赖属性。
这是简化的 XAML。
<UserControl x:Class="PrinterTest.TestControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300"
DataContext="{Binding RelativeSource={RelativeSource Self}}">
<Grid>
<Label Content="{Binding LabelCaption}"
Height="24" HorizontalContentAlignment="Right" Name="lblCaption"
Width="140" />
</Grid>
</UserControl>
和代码隐藏
public partial class TestControl : UserControl
{
public TestControl()
{
InitializeComponent();
}
public readonly static DependencyProperty
LabelCaptionDP = DependencyProperty.Register("LabelCaption",
typeof(string),
typeof(TestControl),
new FrameworkPropertyMetadata("no data"));
public string LabelCaption
{
get { return (string)GetValue(LabelCaptionDP); }
set { SetValue(LabelCaptionDP, value); }
}
在调用位中,我通过TestControl myControl = new TestControl();
我做错了什么,因为我无法访问控件新副本中的属性?谢谢!