dw_list.SetTransObject(sqlca);
dw_list.Retrieve();
string str_search = "";
string name_table = "(";
string str_end = "%')";

//поиск по названию статьи

if (sle_Name_Article.Text <> '') then
	str_search += name_table + "lower(article_name) LIKE '" + sle_Name_Article.text + str_end;
end if;	

//Поиск по именам автора	

if (sle_Name_Author.text <> '') then
	if (str_search <> '') then
		str_search += " and " + name_table + "lower(all_name_author) LIKE '" + sle_Name_Author.text + str_end;
	else
		str_search += name_table + "lower(all_name_author) LIKE '" + sle_Name_Author.text + str_end;
	end if;
else
	if (str_search <> '') then
		str_search += " and " + name_table + "lower(all_name_author) LIKE '"+ str_end;
	end if;
end if;

dw_list.setfilter(str_search); 
dw_list.filter();
dw_1.setfilter(str_search); 
dw_1.filter();
dw_1.ScrollToRow(1);
dw_1.setfocus()