我有一个用户控件将多个属性传递给内部文本块,如下所示:
<UserControl x:Name="Root">
<Grid>
<TextBlock x:Name="ContentBlock"
TextWrapping="WrapWholeWords"
FontFamily="{Binding FontFamily}"
FontWeight="{Binding FontWeight}"
Text="{Binding Text}"
LineHeight="{Binding LineHeight}"
Foreground="{Binding Foreground}"
/>
</Grid>
</UserControl>
在用户控件中我有以下内容:
public CustomTextBlock()
{
this.InitializeComponent();
(this.Content as FrameworkElement).DataContext = this;
}
public static readonly DependencyProperty TextProperty = DependencyProperty.Register("Text",
typeof(string), typeof(CustomTextBlock), null);
public string Text
{
get { return (string)GetValue(TextProperty); }
set { SetValueDp(TextProperty, value); }
}
public event PropertyChangedEventHandler PropertyChanged;
public void SetValueDp(DependencyProperty property, object value, [CallerMemberName]string propertyName = null)
{
SetValue(property, value);
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
在我使用此控件时,我会绑定一些属性,如:
<controls:CustomTextBlock Text="{Binding Question.Text}"
FontSize="30"
MaxHeight="130"
Margin="0, 0, 10, 0"/>
但是,文本没有正确地通过绑定传递给控件。我所看到的一切都说这应该有效,但事实并非如此。是什么原因导致我的文本不能传递给依赖属性?
答案 0 :(得分:0)
您的控件属于CustomTextBlock
类型,但该属性已被typeof(ShrinkingTextBlock)
所有。这些需要匹配绑定才能工作。