builder c++ ,query(select) help!!!

[pitolis]

thelo na kano 1 query select sti builder c++! thelo na kano anazitisi se 1 pinana meso 1 edit(diladi na dino tin timi apo to edit1) kai na vlepo to apotelesma (tis anazitisis) se ena alo edit2!

lipon ekana to select sto query!!

SELECT first_name FROM employees

WHERE emp_id=:emp_id;

 

kai sto params :0 emp_id to ekana string

piga sto koubi kai egrapsa(ekei den ksero ti akrivos grafo) :

 

Query1->Close();

Query1->Open();

Query1->Params->Items[0]->AsString=Edit1->Text;

Edit2->Text=Query1->Open();

 

mu vgazei error omos sto teleytea grami :(E2109) not an allowed type

mipos kserei kaneis pos vazume se 1 edit to apotelesma tu query???