问题描述

有没有办法更改我想放在 TextBox 或 RichTextBox 上的部分文本的颜色和字体.我正在使用 C# WPF.

Is there a way to change color and font for some part of text which I want to put on TextBox or RichTextBox. I am using C# WPF.

例如

 richTextBox.AppendText("Text1 " + word + " Text2 ");

变量词，例如从 Text1 和 Text2 变成其他颜色和字体.是否有可能以及如何做到这一点?

Variable word for example to be other color and font from Text1 and Text2. Is it possible and how to do this?

推荐答案

如果你只是想做一些快速着色，最简单的解决方案可能是使用 RTB 内容的结尾作为 Range 并对其应用格式.例如:

If you just want to do some quick coloring, the simplest solution may be to use the end of the RTB content as a Range and apply formatting to it. For example:

TextRange rangeOfText1 = new TextRange(richTextBox.Document.ContentEnd, richTextBox.Document.ContentEnd);
rangeOfText1.Text = "Text1 ";
rangeOfText1.ApplyPropertyValue(TextElement.ForegroundProperty, Brushes.Blue);
rangeOfText1.ApplyPropertyValue(TextElement.FontWeightProperty, FontWeights.Bold);

TextRange rangeOfWord = new TextRange(richTextBox.Document.ContentEnd, richTextBox.Document.ContentEnd);
rangeOfWord.Text = "word ";
rangeOfWord.ApplyPropertyValue(TextElement.ForegroundProperty, Brushes.Red);
rangeOfWord.ApplyPropertyValue(TextElement.FontWeightProperty, FontWeights.Regular);

TextRange rangeOfText2 = new TextRange(richTextBox.Document.ContentEnd, richTextBox.Document.ContentEnd);
rangeOfText2.Text = "Text2 ";
rangeOfText2.ApplyPropertyValue(TextElement.ForegroundProperty, Brushes.Blue);
rangeOfText2.ApplyPropertyValue(TextElement.FontWeightProperty, FontWeights.Bold);

如果您正在寻找更高级的解决方案，我建议您阅读 此 Microsoft Doc about Flow Document，因为它为您提供了极大的灵活性来格式化您的文本.

If you are looking for a more advanced solution, I suggest reading this Microsoft Doc about Flow Document, as it gives you a great flexibility in formatting your text.

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