如何获取变量的列表值

问题描述

我需要列表值变量为十进制unil = lst.Unit等等..

请帮帮我out ..

Hi ,

I need list value to variables as decimal unil=lst.Unit and so on..
Please help me out ..

Quote：

var lst = BusinessLayer.restdetailsBAL.Instance.GetRestDetails（Convert.ToInt32（lblID.Text））。选择（q => new {

Unit = q.Unit，

SelPrice = q.SellPrice，

Batch = q.Batch，

Expiry = q.Expiry

}）。ToList（）;

var lst = BusinessLayer.restdetailsBAL.Instance.GetRestDetails(Convert.ToInt32(lblID.Text)).Select(q=> new {
Unit=q.Unit,
SelPrice=q.SellPrice,
Batch=q.Batch,
Expiry=q.Expiry
}).ToList();

我尝试过：



我怎么试试： -

string s = lst.Select（q => q.Unit）;

但是有（不能隐式转换类型） 'System.Collections.Generic.IEnumerable< decimal>'to'string'）;

What I have tried:

how every i try :-
string s = lst.Select(q => q.Unit);
but there is(Cannot implicitly convert type 'System.Collections.Generic.IEnumerable<decimal>' to 'string');

推荐答案

var item = BusinessLayer.restdetailsBAL.Instance.GetRestDetails(Convert.ToInt32(lblID.Text)).Select(q => new
         {
             Unit = q.Unit,
             SelPrice = q.SellPrice,
             Batch = q.Batch,
             Expiry = q.Expiry
         }).FirstOrDefault();

         if (item != null)
         {
             string unit = item.Unit;
             var SelPrice = item.SelPrice;
             var Batch = item.Batch;
             var Expiry = item.Expiry;
         }

参考这些

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refer these
FirstOrDefault[^]
SingleOrDefault[^]
Difference Between First() and FirstOrDefault() in LINQ[^]

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