C# 如何在文本中加粗字符串

我的问题和这个类似

我想在标签之间添加粗体字符串

我用你的线

string pattern = @"<strong>(.*?)</strong>";
var matches = Regex.Matches(paragraf2.Range.Text, pattern)
                   .Cast<Match>()
                   .Select(m => m.Groups[1].Value)
                   .ToList();

但是我不知道里面写什么。

与您的案例相关（如果描述正确），您可以通过修改字符串使用[]中给出的解决方案：

 richTextBox1.SelectedText = richTextBox1.SelectedText.Replace("<b>", "").Replace("</b>", "");

---

Rgds，

如har07在评论中所述，您可以像

       string pattern = @"<strong>(.*?)</strong>";
       var matches = Regex.Matches(paragraf2.Range.Text, pattern)
               .Cast<Match>()
               .Select(m => m.Groups[1].Value)
               .ToList();
       Word.Find findObject = Application.Selection.Find;
       foreach( string a in matches){ 
            findObject.ClearFormatting();
            findObject.Text = a;
            findObject.Replacement.ClearFormatting();
            findObject.Replacement.Font.Bold = 1;
            object replaceAll = Word.WdReplace.wdReplaceAll;
            findObject.Execute(ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref replaceAll, ref missing, ref missing, ref missing, ref missing);  
           }

字符串模式=@“（.*）”；
var matches=Regex.matches（pararaf2.Range.Text，模式）
.Cast（）
.Select（m=>m.Groups[1]。值）
.ToList（）；
Word.Find findObject=Application.Selection.Find；
foreach（匹配中的字符串a）{
findObject.ClearFormatting（）；
findObject.Text=a；
findObject.Replacement.ClearFormatting（）；
findObject.Replacement.Font.Bold=1；
object replaceAll=Word.WdReplace.wdReplaceAll；
findObject.Execute（ref缺失、ref缺失、ref缺失、ref缺失、ref缺失、ref缺失、ref缺失、ref缺失、ref替换、ref缺失、ref缺失、ref缺失、ref缺失、ref缺失、ref缺失）；
}

您尝试了什么？您的标记似乎表明您正在将生成的文本放入Word文档中。是吗？@KevinS是的。我想要的是在word文档中找到强化文本（匹配的文本提供了字符串列表）并替换为粗体文本。我不想全部删除，我需要粗体文本。遗憾的是，它不起作用。没有范围。SelectionFont或range.text.SelectionFont

richTextBox1.SelectedText = richTextBox1.SelectedText.Replace("<strong>", String.Empty).Replace("</strong>", String.Empty);

private void richTextBox1_TextChanged(object sender, EventArgs e)
{
    string regexString = "(?<=<strong>)(.*?)(?=</strong>)";
    Match matches = (Regex.Match(richTextBox1.Text, regexString));

    if (matches.Success)
    {
        int index1 = richTextBox1.Find("<strong>");
        int index2 = richTextBox1.Find("</strong>");
        richTextBox1.Select(index1 + 3, ((index2) - (index1 + 3)));

        richTextBox1.SelectionFont = new Font(richTextBox1.SelectionFont.FontFamily, richTextBox1.SelectionFont.Size, FontStyle.Bold);
    }
}

private void ToggleBold()
{
   if (richTextBox1.SelectionFont != null)
   {
      System.Drawing.Font currentFont = richTextBox1.SelectionFont;
      System.Drawing.FontStyle newFontStyle;

      if (richTextBox1.SelectionFont.Bold == true)
      {
         newFontStyle = FontStyle.Regular;
      }
      else
      {
         newFontStyle = FontStyle.Bold;
      }

      richTextBox1.SelectionFont = new Font(
         currentFont.FontFamily, 
         currentFont.Size, 
         newFontStyle
      );
   }
}

       string pattern = @"<strong>(.*?)</strong>";
       var matches = Regex.Matches(paragraf2.Range.Text, pattern)
               .Cast<Match>()
               .Select(m => m.Groups[1].Value)
               .ToList();
       Word.Find findObject = Application.Selection.Find;
       foreach( string a in matches){ 
            findObject.ClearFormatting();
            findObject.Text = a;
            findObject.Replacement.ClearFormatting();
            findObject.Replacement.Font.Bold = 1;
            object replaceAll = Word.WdReplace.wdReplaceAll;
            findObject.Execute(ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref replaceAll, ref missing, ref missing, ref missing, ref missing);  
           }