可以为空的 object 在传递存储过程时必须有一个值

Question

I am trying to send ClearDateC as parameter to procedure but it throwing an error

nullable object must have value.

My code:

foreach (var item in bankRecos)
{
   DataTable Dt ;

   DateTime ChqDateC = Convert.ToDateTime(item.ChqdateDisplay);

   Dt = MD.GetBankReco_GetBankRecoUpdate(item.CommentC, (DateTime)item.ClearDateC, item.Chqno, ChqDateC);

   if (Dt.Rows.Count > 0 && Dt.Rows[0]["Status"].ToString() == "1")
   {
       status = "Success";
   }
   else
   {
       status = "Error : " + Dt.Rows[0]["Message"].ToString().Replace('\n', '_');
   }
}

Please help me with this.

Answer 1

You can change the call to check if the nullable DateTime filed has value and then use the Value property like

var cleardate = item.ClearDateC.HasValue ? (DateTime)item.ClearDateC : DateTime.Now;
MD.GetBankReco_GetBankRecoUpdate(item.CommentC, cleardate, item.Chqno, ChqDateC);