private void textBox1_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) { if (e.KeyChar == '\t') { int cursorPosition = ((System.Windows.Forms.TextBox) sender).SelectionStart; string beforeCursor = ((System.Windows.Forms.TextBox) sender).Text.Substring(0,((System.Windows.Forms.TextBox) sender).SelectionStart); string afterCursor = ((System.Windows.Forms.TextBox) sender).Text.Substring(((System.Windows.Forms.TextBox) sender).SelectionStart); ((System.Windows.Forms.TextBox) sender).Text = beforeCursor + " " + afterCursor; ((System.Windows.Forms.TextBox) sender).SelectionStart = cursorPosition + 2; e.Handled = true; } }Einar