My search button not displaying data

Am building window form application for a clinic using VS2010. On the form in have a searchbutton that display data baseon the RegistrationNo. When i test the application, provide the Registration number and click the search button nothing is display, and no error message is display too. Here is my code

        string connectionstring = "Data Source=localhost;Initial Catalog=HMS;Persist Security Info=True;User ID=Developer;Password=abc@123";
        SqlConnection connection = new SqlConnection(connectionstring);

        string SelectStatement = "SELECT * FROM MyTable where RegistrationNo = '@RegistraionNo'";
        SqlCommand insertcommand = new SqlCommand(SelectStatement, connection);
        insertcommand.Parameters.AddWithValue("@RegistrationNo", txtsearch.Text);
        SqlDataReader reader;
            reader = insertcommand.ExecuteReader();

            while (reader.Read())
                textBox3.Text = reader["RegistratioNo"].ToString();
                textBox1.Text = reader["FirstName"].ToString();
                textBox2.Text = reader["LastName"].ToString();
                genderOption.Text = reader["Sex"].ToString();
                textBox7.Text = reader["Contact"].ToString();
                textBox4.Text = reader["Age"].ToString();
                textBox5.Text = reader["Weight"].ToString();
                textBox6.Text = reader["Weight"].ToString();
                comboBox1.Text = reader["Tribe"].ToString();

            }//end while
        catch (SqlException ex)
            throw ex;

        }//end catch
        }// end finally



You have a typo

RegistraionNo instead of RegistrationNo


string SelectStatement = "SELECT * FROM MyTable where RegistrationNo = '@RegistraionNo'";

another in

textBox3.Text = reader["RegistratioNo"].ToString();

You'll copy 100 lines of

I want a registration, I want a registration, I want a registration.

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