Resize text size of a label when the text gets longer than the label size?

Question

I have a label that shows the file name .. I had to set AutoSize of the label to False for designing.
So when the file name text got longer than label size.. it got cut like in the picture.

label1.Size = new Size(200, 32); label1.AutoSize = false; 

How do I re-size the text automatically to fit the label size, when the text is longer than the label size?

Answer 1

You can use my code snippet below. System needs some loops to calculate the label's font based on text size.

while(label1.Width < System.Windows.Forms.TextRenderer.MeasureText(label1.Text,       new Font(label1.Font.FontFamily, label1.Font.Size, label1.Font.Style)).Width) {     label1.Font = new Font(label1.Font.FontFamily, label1.Font.Size - 0.5f, label1.Font.Style); } 

Answer 2

Label scaling

private void scaleFont(Label lab) {     Image fakeImage = new Bitmap(1, 1); //As we cannot use CreateGraphics() in a class library, so the fake image is used to load the Graphics.     Graphics graphics = Graphics.FromImage(fakeImage);      SizeF extent = graphics.MeasureString(lab.Text, lab.Font);      float hRatio = lab.Height / extent.Height;     float wRatio = lab.Width / extent.Width;     float ratio = (hRatio < wRatio) ? hRatio : wRatio;      float newSize = lab.Font.Size * ratio;      lab.Font = new Font(lab.Font.FontFamily, newSize, lab.Font.Style); } 

TextRenderer Approach pointed out by @ToolmakerSteve in the comments

private void ScaleFont(Label lab) {     SizeF extent = TextRenderer.MeasureText(lab.Text, lab.Font);      float hRatio = lab.Height / extent.Height;     float wRatio = lab.Width / extent.Width;     float ratio = (hRatio < wRatio) ? hRatio : wRatio;      float newSize = lab.Font.Size * ratio;      lab.Font = new Font(lab.Font.FontFamily, newSize, lab.Font.Style); }