如何在DataGrid中显示分组数据? -摘要行 [英] How to show the grouping data in a DataGrid? - Summary Row

问题描述

我上了这堂课:

public enum KindOfPerson
{
    Student, Teacher, ...
}

public class Person
{
    // This contains only numbers between 0 and 1
    public double ScorePercent { get; set; }
    public KindOfPerson Type { get; set; }
}

我有一个人员列表，然后应用此LINQ函数或获得另一个由KindOfPerson分类的列表，并计算属于该KindOfPerson的所有人员的平均得分:

I have a people list and then I apply this LINQ function ot get another list which is classified by KindOfPerson and calculates the average score of all the people belong to that KindOfPerson:

var groupedLists = peopleList.GroupBy(person => person.Type)
                         .OrderBy(group => group.Key)
                         .Select(group => new {
                             People = group.ToList(),
                             AverageScore = group.Average(p => p.ScorePercent)
                          })
                          .ToList();

我不想在DataGrid中显示此列表，但我不知道要这样做.

I'd like t show this list in a DataGrid but I don't have any idea to do it.

我正在尝试这样做:

[DATAGRID]

[DATAGRID]

学生平均得分:XXX

Student AVERAGE SCORE: XXX

• SCORE PERCENT 1

• SCORE PERCENT 1

SCORE PERCENT 2

SCORE PERCENT 2

教师平均评分:YYY

Teacher AVERAGE SCORE: YYY

• SCORE PERCENT 1

• SCORE PERCENT 1

SCORE PERCENT 2

SCORE PERCENT 2

那样的事情，发牢骚.

更新

我认为这段代码可以帮助我们: http://leeontech.wordpress.com/2010/02/01/summary-row-in-datagrid/

I think this code can help us: http://leeontech.wordpress.com/2010/02/01/summary-row-in-datagrid/

推荐答案

此处，您会发现有关如何使用DataGrid进行分组的示例. 此处是有关如何实施分组.

Here you find an example on how grouping is done with the DataGrid. Here is another link on how implement grouping.

主要是像在所有可分组的WPF控件中一样进行操作.但是请注意，如果使用分组功能，则DataGrid会失去UI虚拟化的功能.因此，通常不是 用分组数据创建巨大列表的好主意.

Principally it's done like in all groupable WPF-controls. However be aware that DataGrid loose the capability of UI virtualization if you use grouping functionality. Therefore it is generally not a good idea to create huge lists with grouped data.

对于模型，建议您创建用于每个订单项的视图模型.该VM提供所有必要的属性，例如ScorePercent1，ScorePercent2以及分组标题.

For the model, I recommend that you create a view-model that is used for each line item. This VM provides all neceessary properties such as ScorePercent1, ScorePercent2 and also the grouping title.

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