i want info about the code..

if (!Page.IsPostBack)
    {
        GetUserFriendsRequest(int.Parse(Request.QueryString["Id"].ToString()));
    }
}

public void GetUserFriendsRequest(int Id)
{
    string getFriendRequestQuery = "Select * FROM [User] where Id IN (SELECT MyId as Id FROM Friends WHERE FriendId='" + Id + "')";
    dt = dbClass.ConnectDataBaseReturnDT(getFriendRequestQuery);
    if (dt.Rows.Count > 0)
    {
        FreindRequestList.DataSource = dt;
        FreindRequestList.DataBind();
    }