Question

如何从xaml

绑定RichTextArea的文本

Answer 1

他们在这里得到了更简单的答案：

Silverlight 4 RichTextBox Bind Data using DataContext 它就像一个魅力。

<RichTextBox>
  <Paragraph>
    <Run Text="{Binding Path=LineFormatted}" />
  </Paragraph>
</RichTextBox>

Answer 2

这是我提出的解决方案。我创建了一个自定义的RichTextViewer类，并继承自RichTextBox。

using System.Windows.Documents;
using System.Windows.Markup;
using System.Windows.Media;

namespace System.Windows.Controls
{
    public class RichTextViewer : RichTextBox
    {
        public const string RichTextPropertyName = "RichText";

        public static readonly DependencyProperty RichTextProperty =
            DependencyProperty.Register(RichTextPropertyName,
                                        typeof (string),
                                        typeof (RichTextBox),
                                        new PropertyMetadata(
                                            new PropertyChangedCallback
                                                (RichTextPropertyChanged)));

        public RichTextViewer()
        {
            IsReadOnly = true;
            Background = new SolidColorBrush {Opacity = 0};
            BorderThickness = new Thickness(0);
        }

        public string RichText
        {
            get { return (string) GetValue(RichTextProperty); }
            set { SetValue(RichTextProperty, value); }
        }

        private static void RichTextPropertyChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
        {
            ((RichTextBox) dependencyObject).Blocks.Add(
                XamlReader.Load((string) dependencyPropertyChangedEventArgs.NewValue) as Paragraph);

        }
    }
}

Answer 3

没有内置的方法可以做到这一点。您可以像讨论here

一样创建Text附加属性并绑定到它

Answer 4

如果要在内联类型控件中绑定XAML控件，可以使用InlineUIContainer类

<RichTextBlock>
<Paragraph>
    <InlineUIContainer>
        <TextBlock Text="{Binding Name"} />
    </InlineUIContainer>
</Paragraph>
</RichTextBlock>

Answer 5

这不能做，你必须手动更新它。文档不是DependencyProperty。

Answer 6

应该能够在SL4 RC中发生。见What is the best substitute for FlowDocument in Silverlight?

从Xaml绑定RichTextBox的文本

6 个答案: