c# update mdb

Question

Hi people,

 

I am create table in access mdb with name Potrazivanje.

Than i create 3 columns and fill it with data.

Columns name in table Potrazivanje UserName, Order, Field3

What i want ?

 

I want find  in table Potrazivanje UserName and insert text string in

Field3 who is in same row as UserName.

 

I try with this but i get some error with command string

 

string baza = dostupno.alpoExePath + "\\" + "alpo_doo_database.mdb";

string conAccSt = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source="; OleDbConnection conn = null;

conn = new OleDbConnection(conAccSt + baza);

conn.Open();

string st = comboBox1.Text;

OleDbCommand update = new OleDbCommand("UPDATE Potrazivanje SET Uneo = '" + Order + "', WHERE UserName= '" + st + "'", conn);

update.ExecuteNonQuery();

conn.Close();

 

I use winForms 

 

Thanks for Help