[英]What will be the best way to output multiple lists?
I am preparing a report where I need to categorize each user in the system. 我正在准备一份报告,需要在其中对系统中的每个用户进行分类。 There are about 15K users.
大约有15K用户。
So I am going through each user, checking them for various conditions, and based on the conditions assign each user to a list. 因此,我要遍历每个用户,检查他们的各种条件,并根据条件将每个用户分配给一个列表。
There are about 8-9 lists which means there are about 8-9 categories of users in the system. 大约有8-9个列表,这意味着系统中大约有8-9个类别的用户。
Now I need to report these users in some easy to understand format. 现在,我需要以一种易于理解的格式报告这些用户。 I was thinking about a CSV file where the columns would represent those 8-9 categories and under each column header, I will have the users from that list.
我正在考虑一个CSV文件,其中的列将代表这8-9个类别,并且在每个列标题下,我将具有该列表中的用户。
I can write all those lists to a CSV but then they appear one below the other. 我可以将所有这些列表写入CSV,但是它们会在另一个列表的下方出现。 I don't know how can I write them in a tabular format so that it is easy to read and understand.
我不知道如何以表格格式编写它们,以使其易于阅读和理解。
Eg let's consider I have three categories of users. 例如,让我们考虑一下我有三类用户。
category1: abc, def, ghi
category2: lmn, opq, rst
category3: uvw, xyz, adf
So my output should be like below: 所以我的输出应该如下所示:
category1 category2 category3
abc lmn uvw
def opq rst
uvw xyz adf
I am open to other suggestions as well regarding how I can output the results in an easy to understand format. 对于如何以一种易于理解的格式输出结果,我也欢迎其他建议。
For export data purpose, or for storing in database you can use only one format: 为了导出数据或存储在数据库中,您只能使用一种格式:
user category
user1 category1
user1 category2
user2 category1
user2 category2
Excel, and any other reporting platform can pivot this data to required format - for example Excel和任何其他报告平台都可以将此数据转换为所需的格式-例如
user category1 category2 category3
user1 x x
user2 x x
If you will be using these CSV's in something like Excel I believe the format you have right now is ideal. 如果您将在Excel之类的格式中使用这些CSV,我相信您现在拥有的格式是理想的。
For outputting the results, what about something like this: 为了输出结果,该如何处理:
// Get categories with all users in it
// and get max count in a category across all categories
List<List<Category>> categories = GetCategoriesWithUsers();
int maxUsersInCategory = categories.Max(x => x.Count);
using (StreamWriter writer = new StreamWriter("output.csv")
{
// Loop through each user per category
for (int userCount = 0; userCount < maxUseresInCategory; userCount++)
{
string outputLine = string.Empty;
// Loop through each category
foreach(List<Category> category in categories)
{
// If category end isn't reached, add user
if (category.Length > userCount)
{
outputLine += category[userCount];
}
outputLine += ",";
}
outputLine = outputLine.Remove(outputLine.Length - 1);
writer.WriteLine(outputLine);
}
}
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