title: System.Data.OleDb.OleDbException' occurred in System.Data.dll
body: <p>I'm supposed to be able to type a postcode in a textbox, so when the program runs, its supposed to put a street name with the matching postcode in another textbox.</p>
  
  <p>However, I'm getting this error And I can't really solve it. The error appears on this line:</p>
  
  <pre><code>leesAdres = Adres.ExecuteReader();
  </code></pre>
  
  <p>The whole code:</p>
  
  <pre><code>using System;
  using System.Collections.Generic;
  using System.ComponentModel;
  using System.Data;
  using System.Data.OleDb;
  using System.Drawing;
  using System.Linq;
  using System.Text;
  using System.Threading.Tasks;
  using System.Windows.Forms;
  
  namespace WindowsFormsApplication12
  {
      public partial class Form1 : Form
      {
          public Form1()
          {
              InitializeComponent();
          }
  
          private void Form1_Load(object sender, EventArgs e)
          {
  
          }
  
          private void btnZoek_Click(object sender, EventArgs e)
          {
              OleDbConnection con = new OleDbConnection();
              OleDbCommand Adres = new OleDbCommand("Select `street` from `postcode` where `postcode` LIKE txtPostcode.Text", con);
              OleDbDataReader readAdres;
              con.ConnectionString = "provider=Microsoft.Ace.OLEDB.12.0; data Source = C:\\Users\\name\\Documents\\school\\Adodotnet\\postcode.accdb";
  
              con.Open();
              readAdres = Adres.ExecuteReader();
  
              while (leesAdres.Read())
              {
                  txtStreet.Text = leesAdres.GetValue(0).ToString();
              }
          }
      }
  }
  </code></pre>
  
  <p>I suspect it might be my SQL command but I'm not sure, I have no experience with SQL and databases. </p>