c# - 文本框文字颜色改变

Question

我有 textbox textbox1 并且我想更改文本颜色，但在所有文本的一部分中。例如从 /* 到 */ 就像 Visual Studio 中的注释？

我怎样才能做到这一点？

Answer 1

试试这个:

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);

或者这个:

public TestWindow()
{
InitializeComponent();

this.paragraph = new Paragraph();
rich1.Document = new FlowDocument(paragraph);

var from = "user1";
var text = "chat message goes here";
paragraph.Inlines.Add(new Bold(new Run(from + ": "))
{
    Foreground = Brushes.Red
});
paragraph.Inlines.Add(text);
paragraph.Inlines.Add(new LineBreak());
this.DataContext = this;
}
private Paragraph paragraph;

来源:

Change color and font for some part of text in WPF C#

和 MSDN:

http://msdn.microsoft.com/en-us/library/system.windows.controls.richtextbox.document.aspx