How to maintain Line feeds when saving data to a database

Save the data entered in the multiline textbox as

VB.NET

..
cmd.Parameters.Add(new SqlParameter('@Notes' ,SqlDbType.NVarChar ))
cmd.Parameters ('@Notes').Value ='<pre>' + TextBox1.Text   + '</pre>'
....
cn.Open()
cmd.ExecuteNonQuery()

C#

...
cmd.Parameters.Add(new SqlParameter('@Notes' ,SqlDbType.NVarChar ));
cmd.Parameters ['@Notes'].Value ='<pre>' + TextBox1.Text   + '</pre>';
....
cn.Open();
cmd.ExecuteNonQuery();

To retrieve the Data

VB.NET

Response.Write (ds.Tables(0).Rows(0)('Notes').ToString ())

C#

Response.Write (ds.Tables[0].Rows[0]['Notes'].ToString ());