决定fontstyle的（粗体，斜体，下划线）为RichTextBox的 [英] Decide FontStyle (Bold, Italic, Underlined) for RichTextBox

问题描述

如何你到底改变字体在一个RichTextBox？

放眼望去给了我老的答案似乎没有工作了。我认为这将是因为这样做 richtextbox1.Font = Font.Bold一样简单; 或类似的东西。原来它不是，所以我环顾四周。显然，你必须修改 fontstyle的这是一个只读（？）的财产，但你必须这样做使一个新的 fontstyle的对象。

但即便如此，这并不正常工作OO

你怎么做到这一点？
编辑：

似乎不工作：\

  rssTextBox.Document.Blocks.Clear（）; 
 rssTextBox.FontWeight = FontWeights.Bold; 
 rssTextBox.AppendText（标题：）; 
 rssTextBox.FontWeight = FontWeights.Normal; 
 rssTextBox.AppendText（rs.Title +\\\
）; 
 rssTextBox.FontWeight = FontWeights.Bold; 
 rssTextBox.AppendText（出版日期：）; 
 rssTextBox.FontWeight = FontWeights.Normal; 
 rssTextBox.AppendText（rs.PublicationDate +\\\
）; 
 rssTextBox.FontWeight = FontWeights.Bold; 
 rssTextBox.AppendText（描述：）; 
 rssTextBox.FontWeight = FontWeights.Normal; 
 rssTextBox.AppendText（rs.Description +\\\
\\\
）; 
  

解决方案

粗体是粗细。您可以直接使用它。

作为的 MSDN文档国家获取或设置的权重，或指定字体的厚度。

您既可以其设置在XAML

 < RichTextBox的粗细=大胆X：NAME =富文本/> 
  

或代码隐藏：

  richText.FontWeight = FontWeights.Bold; 
  

如果您尝试切换的FontFamily 那会如：

  richText.FontFamily =新的FontFamily（宋体）; 
  

或 fontstyle的：

  richText.FontStyle = FontStyles.Italic; 
  

更新：（更新的RichTextBox 在线）

这仅仅是一个快速实体模型。使用这个作为一个例子。请构建它为您的要求。

  richText.Document.Blocks.Clear（）; 
段textParagraph =新的第（）; 
 AddInLineBoldText（标题：裁判textParagraph）; 
 AddNormalTextWithBreak（rs.Title，楼盘textParagraph）; 
 AddInLineBoldText（出版日期：裁判textParagraph）; 
 AddNormalTextWithBreak（rs.PublicationDate，楼盘textParagraph）; 
 AddInLineBoldText（描述：裁判textParagraph）; 
 AddNormalTextWithBreak（rs.Description，楼盘textParagraph）; 
 AddNormalTextWithBreak（，参考textParagraph）; 
 richText.Document.Blocks.Add（textParagraph）; 
 
私有静态无效AddInLineBoldText（字符串文本，文献逐段）{
黑体myBold =新款Bold（）; 
 myBold.Inlines.Add（文本）; 
 paragraph.Inlines.Add（myBold）; 
} 
 
私有静态无效AddNormalTextWithBreak（字符串文本，文献逐段）{
运行myRun =新的运行{文字=文字+ Environment.NewLine}; 
 paragraph.Inlines.Add（myRun）; 
} 
  

How exactly do you change the Font in a RichTextBox?

Looking around gives me old answers that doesn't seem to work any more. I thought it would be as simple as doing richtextbox1.Font = Font.Bold; or something similar. Turns out it's not, so I looked around. Apparently you have to change the FontStyle which is a readonly (??) property, but you have to do it making a new FontStyle Object.

But even then that doesn't work o.o

How do you do this? EDIT:

Doesn't seem to work :\

            rssTextBox.Document.Blocks.Clear();
            rssTextBox.FontWeight = FontWeights.Bold;
            rssTextBox.AppendText("Title: ");
            rssTextBox.FontWeight = FontWeights.Normal;
            rssTextBox.AppendText(rs.Title + "\n");
            rssTextBox.FontWeight = FontWeights.Bold;
            rssTextBox.AppendText("Publication Date: ");
            rssTextBox.FontWeight = FontWeights.Normal;
            rssTextBox.AppendText(rs.PublicationDate + "\n");
            rssTextBox.FontWeight = FontWeights.Bold;
            rssTextBox.AppendText("Description: ");
            rssTextBox.FontWeight = FontWeights.Normal;
            rssTextBox.AppendText(rs.Description + "\n\n");

解决方案

Bold is a FontWeight. You can apply it directly.

As MSDN Doc states "Gets or sets the weight or thickness of the specified font."

You can either set it in xaml

<RichTextBox FontWeight="Bold" x:Name="richText" />

or in codebehind:

richText.FontWeight = FontWeights.Bold;

If your trying to switch FontFamily that would be like:

richText.FontFamily = new FontFamily("Arial");

or FontStyle:

richText.FontStyle = FontStyles.Italic;

Update: (for updating RichTextBox inline)

This is just a quick mock-up. Using this as an example. Please structure it for your requirements.

richText.Document.Blocks.Clear();
Paragraph textParagraph = new Paragraph();
AddInLineBoldText("Title: ", ref textParagraph);
AddNormalTextWithBreak(rs.Title, ref textParagraph);
AddInLineBoldText("Publication Date: ", ref textParagraph);
AddNormalTextWithBreak(rs.PublicationDate, ref textParagraph);
AddInLineBoldText("Description: ", ref textParagraph);
AddNormalTextWithBreak(rs.Description, ref textParagraph);
AddNormalTextWithBreak("", ref textParagraph);
richText.Document.Blocks.Add(textParagraph);

private static void AddInLineBoldText(string text, ref Paragraph paragraph) {
  Bold myBold = new Bold();
  myBold.Inlines.Add(text);
  paragraph.Inlines.Add(myBold);
}

private static void AddNormalTextWithBreak(string text, ref Paragraph paragraph) {
  Run myRun = new Run {Text = text + Environment.NewLine};
  paragraph.Inlines.Add(myRun);
}

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