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C# WPF从applypropertyvalue内联插入_C#_Wpf_Richtextbox - Fatal编程技术网

C# WPF从applypropertyvalue内联插入

C# WPF从applypropertyvalue内联插入,c#,wpf,richtextbox,C#,Wpf,Richtextbox,我有一个RichTextBox(CurRichTextControl)并更改所选文本的文本装饰: TextRange range = new TextRange(CurRichTextControl.Selection.Start, CurRichTextControl.Selection.End); TextDecorationCollection tdc; tdc = TextDecorations.OverLine; range.ApplyPropertyValue(Inline.Text

我有一个RichTextBox(CurRichTextControl)并更改所选文本的文本装饰:

TextRange range = new TextRange(CurRichTextControl.Selection.Start, CurRichTextControl.Selection.End);
TextDecorationCollection tdc;
tdc = TextDecorations.OverLine;
range.ApplyPropertyValue(Inline.TextDecorationsProperty, tdc);    
WPF将通过它创建一个新的内联。 假设在应用文本装饰之前,包含范围的段落仅由1个内联(或运行)组成。 然后它将产生3个内联元素。 我怎样才能使新的线与上划线对齐?ApplyPropertyValue不返回任何值或对象。我必须手动搜索该段落吗

谢谢大家!