如何获得清单的价值 [英] How get value of List

问题描述

List<object> items= new List<object>();
List.Add(...);

..........

..........

var s = items[0]; // not working

来自OP:
无法将源类型对象"转换为目标类型对象[]

From OP:
cannot convert source type ''object'' to target type object[]

推荐答案

List<object> items= new List<object>();
items.Add(1);
items.Add(2);
items.Add(3);

var s = items[0];

以上对我有用.检查您的语法.

The above works for me. Check your syntax.

在这个词的所有意义上，它当然是有效的.在发布代码时，只需尝试自己的代码即可，别无其他.但是，为什么要对通用集合使用类型object?使用一些更具体的类型很有意义.

—SA

Of course it''s working, in all senses of this word. Just try your own code, as you post it and nothing else. But why using the type object with generic collection? It makes sense to use some more concrete type.

—SA

认为您的错误是将List与item混淆.您将新变量添加到列表中，而不是item中.所以是的是正确的，因为您的语法是错误的...

您应该注意一下，您创建的新列表被命名为"item"而不是"List"

Think your mistake is confusing List with item.... You adds the new variables to the list and not the item... SO yes they are right in that your syntax is wrong...

You should just take a note that the new list you created is named "item" an not "List"

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