【编程随笔】C# 重写OnPaint实现 控件 Text 居中显示

借鉴文章

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 必备类库

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

 重载控件的话，应该都有、都有。

 代码示例

protected override void OnPaint(PaintEventArgs e)
{
    base.OnPaint(e);

    Graphics g = e.Graphics;
    g.Clear(this.BackColor);

    SolidBrush brush = new SolidBrush(this.ForeColor);
    string text = this.Text;
    var size = g.MeasureString(text, this.Font);

    for (int i = 1; i <= text.Length; i++)
    {
        if (size.Width / i < this.Width)
        {
            if (text.Length % i == 0)
            {
                for (int j = 0; j < i; j++)
                {
                    string str = text.Substring(j * text.Length / i, text.Length / i);
                    var subSize = g.MeasureString(str, this.Font);

                    g.DrawString(str, thi