Question

我想将 text2 显示为粗体字

   public partial class Form2 : Form
   {
        public Form2(string text1, string text2, string text3, double text4,string t)
        {
           InitializeComponent();
           label1.Text = text1;
           label2.Text = "On  " + text2 +
                         "  Or When Your Vehicle Runs  " + text3 + " KM. ";
           label3.Text ="Today "+ t +
                        "  and It Reminds You " + text4 +" Days Earlir.";
        }
   }

Answer 1

这是一个轻量级的Label类，支持强调测试。

修改：访问CodeReview后，我更新了我的回答。它现在更强大了。它仍然使用Label子类。您可以创建如下强文本：

This is *bold* and this is an \* asterisk.

你要写的问题：

label2.Text = "On  *" + text2 + "*  Or When Your Vehicle Runs  " + text3 + " KM. ";

只需将类添加到项目中，调整其命名空间，编译，从工具箱中拖动并更改其扩展属性，如普通Label。

您可以将StrongColor和StrongFont设置为您喜欢的任何内容。默认值为ControlText和Label.FontStyle.Bold。

您可以将格式字符串Splitter从星号（*）更改为anthing，然后您可以通过＆＃39; \＆＃39;或者你想要的任何Escape字符串，因为它们都是属性。

FmtLabel将自动调整其宽度，仅用于一行文本。

您可能需要查看扩展版本here on CodeReview。在不到200行的代码中它仍然相当小，将支持多行，最多10个字体甚至多个交互链接。（即将发布的第2版）

using System;
using System.Drawing;
using System.Windows.Forms;

namespace yourNamespace
{
  public class FmtLabel : Label
  {
    public FmtLabel()
    {
        this.Paint += FmtLabel_Paint;
        Escape = @"\";
        Splitter = "*";
        AutoSize = true;
    }

    public string Splitter    { get; set; }
    public string Escape      { get; set; }
    public Font   StrongFont  { get; set; }
    public Color  StrongColor { get; set; }

    private SolidBrush textBrush, backBrush, strongBrush;

    protected override void OnPaint(PaintEventArgs e) { FmtLabel_Paint(this, e); }

    public void FmtLabel_Paint(object sender, PaintEventArgs e)
    {
        if (StrongColor == Color.Empty) StrongColor = SystemColors.ControlText;
        textBrush = new SolidBrush(ForeColor);
        backBrush = new SolidBrush(BackColor);
        strongBrush = new SolidBrush(StrongColor);

        e.Graphics.FillRectangle(backBrush, this.ClientRectangle);
        if (this.Text.Length <= 0) return;

        if (Splitter == null) Splitter = "*";
        int strongStart = Text.StartsWith(Splitter) ? 0 : 1;

        StringFormat SF = new StringFormat(StringFormat.GenericTypographic)
                    { FormatFlags = StringFormatFlags.MeasureTrailingSpaces };

        float x = 0f;  // tracks the write pointer

        string text_ = escapes(this.Text, true);
        string[] parts = text_.Split(new string[] { Splitter }, 
                                     StringSplitOptions.RemoveEmptyEntries);
        // plain and strong text will alternate
        for (int i = 0; i < parts.Length; i++)
        {
           string p = escapes(parts[i], false);
           if (i % 2 == strongStart)
           {
              e.Graphics.DrawString(p, StrongFont, textBrush, new Point((int)x, 0));
              x += e.Graphics.MeasureString(p, StrongFont, Point.Empty, SF).Width + 2;
           }
           else
           {
              e.Graphics.DrawString(p, this.Font, textBrush, new Point((int)x, 0));
              x += e.Graphics.MeasureString(p, this.Font, Point.Empty, SF).Width + 2;
           }
        }

        this.Width = (int)x;
        textBrush.Dispose();
        backBrush.Dispose();
        strongBrush.Dispose();
    }

    string escapes(string input, bool escape)
    {
        if (escape)  return input.Replace(Escape + Splitter, ((char)1).ToString());
        else         return input.Replace(((char)1).ToString(), Splitter);  // unescape
    }

  }
}

Answer 2

WinForms不允许这样做。

但是

您需要将文本放入RichTextBox，并在段落中将该名称作为单独的Run运行，如本示例中的MSDN所示：

// Create a Run of plain text and some bold text.
Run myRun1 = new Run();
myRun1.Text = "A RichTextBox with ";
Bold myBold = new Bold();
myBold.Inlines.Add("initial content ");
Run myRun2 = new Run();
myRun2.Text = "in it.";

// Create a paragraph and add the Run and Bold to it.
Paragraph myParagraph = new Paragraph();
myParagraph.Inlines.Add(myRun1);
myParagraph.Inlines.Add(myBold);
myParagraph.Inlines.Add(myRun2);

// Add the paragraph to the RichTextBox.
MyRTB.Blocks.Add(myParagraph);

Answer 3

您无法直接在Windows表单上执行此操作。

试试这个

http://www.codeproject.com/Articles/31237/GMarkupLabel-A-C-Windows-Forms-control-to-display

如何在一个句子中以粗体显示单个单词？

3 个答案: