Doubts regarding Temporary tables in asp.net

create table #table1(id bigint,name nvarchar(max))

insert into #table1(id,name)values (1,'xx')

insert into #table1(id,name)values (2,'yy')

select *fro #table1

SqlConnection conn = new SqlConnection("connection string");
SqlCommand cmd = new SqlCommand("create table #MyTempTable(Stud_Id int, Column1 varchar(50))", conn);
conn.Open();
cmd.ExecuteNonQuery();
SqlBulkCopy bulkCopy = new SqlBulkCopy(conn);
bulkCopy.DestinationTableName = "#MyTempTable";
bulkCopy.WriteToServer(dt);
conn.Close();