为多个文本块查找可能的最大字体大小

你可以使用 Graphics.MeasureString Method (String, Font, Int32) 以计算字体大小。 然后使用一些行为魔术将字体大小绑定到TextBlock。

private void MeasureStringWidth(PaintEventArgs e)
{

    // Set up string. 
    string measureString = "Measure String";
    Font stringFont = new Font("Arial", 16);

    // Set maximum width of string. 
    int stringWidth = 200;

    // Measure string.
    SizeF stringSize = new SizeF();
    stringSize = e.Graphics.MeasureString(measureString, stringFont, stringWidth);

    // Draw rectangle representing size of string.
    e.Graphics.DrawRectangle(new Pen(Color.Red, 1), 0.0F, 0.0F, stringSize.Width, stringSize.Height);

    // Draw string to screen.
    e.Graphics.DrawString(measureString, stringFont, Brushes.Black, new PointF(0, 0));
}