title: OleDBException was unhandled by user code. Error Message: OverFlow
body: <p><a href="http://i.stack.imgur.com/WEmDB.png" rel="nofollow">enter image description here</a><a href="http://i.stack.imgur.com/KIDiS.png" rel="nofollow">enter image description here</a>I try to insert data to my MS Access Database. My table's name SignUp.</p>
  
  <pre><code>cmd.Parameters.Add("@name", OleDbType.VarChar).Value = txtNameSignUp.Text;
  cmd.Parameters.Add("@surname", OleDbType.VarChar).Value = txtSurnameSignUp.Text;
  cmd.Parameters.Add("@phone", OleDbType.VarChar).Value = txtPhoneSignUp.Text;
  cmd.Parameters.Add("@mail", OleDbType.VarChar).Value = txtMailSignUp.Text;
  cmd.Parameters.Add("@address", OleDbType.VarChar).Value = txtAddressSignUp.Text;
  cmd.Parameters.Add("@username", OleDbType.VarChar).Value = txtUserNameSignUp.Text;
  cmd.Parameters.Add("@password", OleDbType.VarChar).Value = txtPasswordSignUp.Text;
  cmd.ExecuteNonQuery();
  cnn.Close();
  cnn = null;
  </code></pre>
  
  <p>I tried to <code>(OleDBType.Binary).Value = Convert.ToByte(txtPhoneSignUp.Text);</code> for Phone's textbox but then it said "Too large" or "Too small".</p>
  
  <blockquote>
    <p>sorgu = "INSERT INTO SignUp
    ([Name],[Surname],[Phone],[Mail],[Address],[UserName],[Password])
    values (@name,@surname,@phone,@mail,@address,@username,@password);";
                cmd = new OleDbCommand(sorgu, cnn);</p>
  
  <pre><code>        //cmd.Parameters.AddWithValue("@name", txtNameSignUp.Text);
          //cmd.Parameters.AddWithValue("@surname", txtSurnameSignUp.Text);
          //cmd.Parameters.AddWithValue("@phone", Convert.ToDouble(txtPhoneSignUp.Text));
          //cmd.Parameters.AddWithValue("@mail", txtMailSignUp.Text);
          //cmd.Parameters.AddWithValue("@address", txtAddressSignUp.Text);
          //cmd.Parameters.AddWithValue("@username", txtUserNameSignUp.Text);
          //cmd.Parameters.AddWithValue("@password", txtPasswordSignUp.Text);
  
          cmd.Parameters.Add("@name", OleDbType.VarChar).Value = txtNameSignUp.Text;
          cmd.Parameters.Add("@surname", OleDbType.VarChar).Value = txtSurnameSignUp.Text;
          cmd.Parameters.Add("@phone", OleDbType.VarChar).Value = 
          cmd.Parameters.Add("@mail", OleDbType.VarChar).Value = txtMailSignUp.Text;
          cmd.Parameters.Add("@address", OleDbType.VarChar).Value = txtAddressSignUp.Text;
          cmd.Parameters.Add("@username", OleDbType.VarChar).Value = txtUserNameSignUp.Text;
          cmd.Parameters.Add("@password", OleDbType.VarChar).Value = txtPasswordSignUp.Text;
  
              cmd.ExecuteNonQuery();
              cnn.Close();
              cnn = null;
  </code></pre>
  </blockquote>