C# 将 List<string> 添加到 List<List<string>> 数组
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/14277763/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
C# Add List<string> to List<List<string>> array
提问by Ljupco Sofijanov
I'm able to add List<string>in List<List<string>>array in this way:
我能添加List<string>在List<List<string>>数组中这样说：
List<string> first = new List<string> { "one", "two", "three" };
List<string> second = new List<string> { "four", "five", "six" };
List<List<string>> list_array = new List<List<string>> { first, second };
Now I need to create several lists populated with database records and then to add this lists to List<List<string>>array:
现在我需要创建几个填充了数据库记录的列表，然后将此列表添加到List<List<string>>数组中：
List<List<string>> array_list;
while (dr.Read())
{
string one = dr["Row1"].ToString();
string two = dr["Row2"].ToString();
List<string> temp_list = new List<string> { one, two };
//Here I need to add temp_list to array_list
}
采纳答案by Al Kepp
Create an empty array_list:
创建一个空的array_list：
List<List<string>> array_list = new List<List<string>>();
Then use Addmethod to add items:
然后使用Add方法添加项目：
array_list.Add(temp_list);
回答by JMK
This should work:
这应该有效：
array_list.Add(temp_list);
回答by Dave Bish
Change your variable declaration to initialize an empty List:
更改您的变量声明以初始化一个空列表：
List<List<string>> array_list = new List<List<string>>();
Then, just call .Add();
然后，只需调用 .Add();
List<string> temp_list = new List<string> { one, two };
//Here I need to add temp_list to array_list
array_list.Add(temp_list);
回答by 1969877
Unless i'm reading this wrong, you should just be able to do:
除非我读错了，否则你应该能够做到：
array_list.add(temp_list);
回答by daryal
you can add directly;
可以直接添加；
array_list.Add(temp_list);
回答by CloudyMarble
List<List<string>> array_list = new List<List<string>>();
while (dr.Read())
{
string one = dr["Row1"].ToString();
string two = dr["Row2"].ToString();
List<string> temp_list = new List<string> { one, two };
array_list.add(temp_list)
}
回答by RTRokzzz
List<List<string>> array_list = new List<List<string>>();
while (dr.Read())
{
string one = dr["Row1"].ToString();
string two = dr["Row2"].ToString();
List<string> temp_list = new List<string> { one, two };
array_list.Add(temp_list);
}
回答by Miko?aj Frankiewicz
You have to alweys remeber to make new temp_list, don't use temp_list.clear(), like I did in my project =_=.
您必须始终记住创建新的 temp_list，不要使用 temp_list.clear()，就像我在我的项目 =_= 中所做的那样。
Blockquote
块引用
List<List<string>> array_list = new List<List<string>>();
while (dr.Read())
{
string one = dr["Row1"].ToString();
string two = dr["Row2"].ToString();
List<string> temp_list = new List<string> { one, two };
array_list.Add(temp_list);
}
Blockquote
块引用
