wpf 如何增加富文本框中文本的字体大小
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How do I Increase Fontsize for text in richtextbox
提问by arjun sanju
How to set font size in each time i call a method.i want to use richtextbox.ApplyPropertyValue()method. I already tried
每次调用richtextbox.ApplyPropertyValue()方法时如何设置字体大小。我想使用方法。我已经试过了
myrichtextbox.SetValue(TextElement.FontSizeProperty, fontSizedouble +10);
myrichtextbox.FontSize = (myrichtextbox.FontSize + 10);
回答by Muds
For rich text box you need selection--
对于富文本框，您需要选择--
try this
尝试这个
TextSelection selectedText = myrichtextbox.Selection;
selectedText.ApplyPropertyValue(RichTextBox.FontSizeProperty, fontSizedouble +10);
For all text you can try this --
对于所有文本，你可以试试这个——
TextRange allText = new TextRange(MyRichTextBox.Document.ContentStart, MyRichTextBox.Document.ContentEnd);
allText.ApplyPropertyValue(RichTextBox.FontSizeProperty, fontSizedouble +10);
And to change size again and again you need to check size for text not richTextBox, do this --
并且要一次又一次地更改大小，您需要检查文本的大小而不是richTextBox，请执行此操作-
TextRange allTextRange = new TextRange(MyRichTextBox.Document.ContentStart, MyRichTextBox.Document.ContentEnd);
var size = (double)allTextRange.GetPropertyValue(FontSizeProperty);
allTextRange.ApplyPropertyValue(RichTextBox.FontSizeProperty, size + 10);
回答by Prince Owen
Change it from your FlowDocument.
从您的FlowDocument.
this.Document.FontSize = this.Document.FontSize + 10;
