[TzAkS.]

Why are you doing this?
Is other way to do it,if the text is big the dialog will not reading it but you can create a string like this.

Код:

new string[32];
format(string,sizeof(string), "Text\nText....");
ShowPlayerDialog(playerid, 2, 0, "Title:", string, "Ok", "Back");

Make the string biger if you have a big text.