image not store in access 2017 database based on UserID

Question

Problem

update image based on UserID not saved in database access 2007

I need to update field qrimg in access 2007 database

Based on field UserID with datatype text

AllPrinting table have two fields UserID,qrimg

and qrimg with datatype OleObject

my code with c# windows form application c# vs 2015

under button i write

byte[] buffer = File.ReadAllBytes(path);
 OleDbConnection oleDbConnection = new OleDbConnection(connection);
 string str = "Update AllPrinting set  qrimg=@qrimg where UserID=@UserID"; OleDbCommand oleDbCommand = new OleDbCommand();             oleDbConnection.Open();
oleDbCommand.Connection = oleDbConnection;             oleDbCommand.CommandText = str;             oleDbCommand.Parameters.AddWithValue("@UserID", label4.Text);
byte[] yourPhoto = buffer;             oleDbCommand.Parameters.AddWithValue("@qrimg", yourPhoto);
 using (oleDbConnection)
{
 oleDbCommand.ExecuteNonQuery();
}
oleDbConnection.Close();

 

when press button to execute code above not exception show

and also no update to image in access done

so that what is the problem

when i press button i add two message box to path and label4 and all both have values