The following lines of code return a correct value only when carriages are given in the text area. If style.wordwrap is enabled it won’t count the automatic new lines, thus giving a wrong result.
GUIContent textContent = new GUIContent();
textContent.text = _target.text;
float H = style.CalcHeight(textContent, scale.width);
Is there any alternative or more correct/official way to get the right height?