Auto Resize a Label

autoresize_label_better

public void Resize(Label label1)
{
    Graphics g = this.CreateGraphics(); //gets the graphics based on the client area
    SizeF size = g.MeasureString(str, label1.Font); //gets the size of the text which will be displayed
    label1.Size = new Size((int)size.Width, label1.Size.Height); //sets the length of the label (same height)
}