TextRenderer.DrawString is not drawing a long string

Question

The following code is not painting anything:

void Form3_Paint(object sender, PaintEventArgs e)
{
      string text = new string('m', 3000);
      TextRenderer.DrawText(
          e.Graphics,
          text,
          this.Font,
          new Point(10, 10),
          Color.Black,
          Color.Transparent);
}

Seems that the string is too long. If I change the string lenght to 2000 it works (I'm using SegoeUI 9) font.

Do you know any workaround for this?

Answer 1

I try your code block and it painted. So I increment the string length up to 4401. After that my test failed too.

Probably TextRender.DrawText method has a limitation on string. But I think that this limitation should be depended on machine.

You want to a workaround. So I suggest that Graphics.DrawString method.

string text = new string('m', 4401);
            e.Graphics.DrawString(text,
                this.Font,
                Brushes.Black,
                new Point(0, 0)
                );

Edited

Oh! I searched this issue and I found this question on stackoverflow.

TextRenderer doesn't draw a long string

What a coincidence! You asked same issue before 1 year ago.