Sp_attach_db

[C# Programming]

SqlConnection conn = new SqlConnect(
"Integrated Security=SSPI;Data Source=DBSRV1;Initial Catalog=master");
SqlCommand cmd = conn.CreateCommand();
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "sp_attach_db";
cmd.Parameters.Add("@dbname", SqlDbType.NVarChar, 128).Value = "MyDB";
cmd.Parameters.Add("@filename1", SqlDbType.NVarChar, 260).Value =
@"C:\Program Files\Microsoft SQL Server\MSSQL\Data\MyDB.mdf";
cmd.Parameters.Add("@filename2", SqlDbType.NVarChar, 260).VAlue =
@"C:\Program Files\Microsoft SQL Server\MSSQL\Data\MyDB.ldf";
try
{
conn.Open();
cmd.ExecuteNonQuery();
}
finally
{
conn.Close();
}

This is OK but i need to get the DataBase Name and File Name from TextBox,i Tried but its not working any Help