Cannot convert method group Read to non-delegate type bool

I worked in C Sharp code works vote and found the problem appointed Data Reader If you will allow me in the solution

Error 25 Cannot convert method group 'Read' to non-delegate type 'bool'. Did you intend to invoke the method?

Show Erorr also 

Line 23: Con.Open (); Line 24: OleDbDataReader dr = cmd2.ExecuteReader (); Line 25: if (dr.Read) Line 26: { Line 27: label2.Text = dr (0);

code

public partial class Default2 : System.Web.UI.Page
{    
    System.Data.OleDb.OleDbConnection Con = new System.Data.OleDb.OleDbConnection(System.Web.Configuration.WebConfigurationManager.ConnectionStrings("MyConnectionString").ConnectionString);
 
        protected void Page_Load(object sender, EventArgs e)
    {
        OleDbCommand cmd2 = new OleDbCommand("select Q,a1,a2,a3,a4 from ope", Con);
        Con.Open();
        OleDbDataReader dr = cmd2.ExecuteReader();
        if (dr.Read)
        {
            label2.Text = dr(0);
            RadioButton1.Text = dr(1);
            RadioButton2.Text = dr(2);
            RadioButton3.Text = dr(3);
            RadioButton4.Text = dr(4);
        }
        dr.Close();
        Con.Close();
    }