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c# - 更改 RichTextBox 中选定文本的样式

转载 作者:行者123 更新时间:2023-11-30 13:32:46 25 4
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如何更改 RichTextBox 中选定文本的样式(例如 Font、FontSize、Brush)?

更新: 假设我有一个 RichTextBox 和一个工具栏。用户来到 RichTextBox 框中选择文本并从工具栏更改字体大小。我想更改所选文本的样式。

最佳答案

WPF

if (this.TextEditor.Selection.IsEmpty)
this.TextEditor.CurrentFontFamily = SelectedFont;
else
this.TextEditor.Selection.ApplyPropertyValue(TextElement.FontFamilyProperty, SelectedFont);

或另一个 WPF 示例

 private void ChangeTextProperty(DependencyProperty dp, string value)
{
if (mainRTB == null) return;

TextSelection ts = richTextBox.Selection;
if (ts!=null)
ts.ApplyPropertyValue(dp, value);
richTextBox.Focus();
}

这里有一些例子 window 更改字体和字体颜色(不是 wpf)

richTextBox1.SelectionFont = new Font("Tahoma", 12, FontStyle.Bold);
richTextBox1.SelectionColor = System.Drawing.Color.Red;

下面的另一个例子(不是wpf)

private void WriteTextToRichTextBox()
{
// Clear all text from the RichTextBox;
richTextBox1.Clear();
// Set the font for the opening text to a larger Arial font;
richTextBox1.SelectionFont = new Font("Arial", 16);
// Assign the introduction text to the RichTextBox control.
richTextBox1.SelectedText = "The following is a list of bulleted items:" + "\n";
// Set the Font for the first item to a smaller size Arial font.
richTextBox1.SelectionFont = new Font("Arial", 12);
// Specify that the following items are to be added to a bulleted list.
richTextBox1.SelectionBullet = true;
// Set the color of the item text.
richTextBox1.SelectionColor = Color.Red;
// Assign the text to the bulleted item.
richTextBox1.SelectedText = "Apples" + "\n";
// Apply same font since font settings do not carry to next line.
richTextBox1.SelectionFont = new Font("Arial", 12);
richTextBox1.SelectionColor = Color.Orange;
richTextBox1.SelectedText = "Oranges" + "\n";
richTextBox1.SelectionFont = new Font("Arial", 12);
richTextBox1.SelectionColor = Color.Purple;
richTextBox1.SelectedText = "Grapes" + "\n";
// End the bulleted list.
richTextBox1.SelectionBullet = false;
// Specify the font size and string for text displayed below bulleted list.
richTextBox1.SelectionFont = new Font("Arial", 16);
richTextBox1.SelectedText = "Bulleted Text Complete!";
}

关于c# - 更改 RichTextBox 中选定文本的样式,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11874800/

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