How to pass values from database to object

Question

Hi

  I have below object. How to pass values from database to object. There can be more than 1 items

public class DocDtls
{
    public string Typ { get; set; }
    public string No { get; set; }
    public string Dt { get; set; }
}

public class ItemList
{
    public int ItemNo { get; set; }
    public string SlNo { get; set; }
    public string IsServc { get; set; }
    public string PrdDesc { get; set; }
    public string HsnCd { get; set; }
    public int Qty { get; set; }
    public int FreeQty { get; set; }
    public string Unit { get; set; }
    public int UnitPrice { get; set; }
    public int TotAmt { get; set; }
    public int Discount { get; set; }
    public int PreTaxVal { get; set; }
    public int AssAmt { get; set; }
    public int GstRt { get; set; }
    public int IgstAmt { get; set; }
    public int CgstAmt { get; set; }
    public int SgstAmt { get; set; }

    public int OthChrg { get; set; }
    public int TotItemVal { get; set; }
}

public class Root
{
    public DocDtls DocDtls { get; set; }
    
    public List<ItemList> ItemList { get; set; }
}

Thanks