Binding DataReader result to GridView control in C#

DATAREADER
DataReader is used to read the data from database and it is a read and forward only connection oriented architecture during fetch the data from database. DataReader will fetch the data very fast when compared with dataset. Generally we will use ExecuteReader object to bind data to datareader.
To bind DataReader data to GridView we need to write the code like as shown below:

Protected void BindGridview()

{

using (SqlConnection conn = new SqlConnection("Data Source=MyDatabase;Integrated Security=true;Initial Catalog=Test"))

{

con.Open();

SqlCommand cmd = new SqlCommand("Select UserName, First Name,LastName,Location FROM MyTableNm", conn);

SqlDataReader sdr = cmd.ExecuteReader();

gvUserInfo.DataSource = sdr;

gvUserInfo.DataBind();

conn.Close();

}

}