autoadjust textbox control .NEt C#

try this


private void textBox1_TextChanged(object sender, EventArgs e) {         Size sz = new Size(textBox1.ClientSize.Width, int.MaxValue);         TextFormatFlags flags = TextFormatFlags.WordBreak;         int padding = 3;         int borders = textBox1.Height - textBox1.ClientSize.Height;         sz = TextRenderer.MeasureText(textBox1.Text, textBox1.Font, sz, flags);         int h = sz.Height + borders + padding;         if (textBox1.Top + h > this.ClientSize.Height - 10) {             h = this.ClientSize.Height - 10 - textBox1.Top;         }         textBox1.Height = h;     }