如何填写分组'差距'来制作表格？

Question

我一直在为在MVC视图中使用C＃将数据矩阵/数据转换为HTML表格而烦恼。

似乎我可以通过分组开始，然后在组内分组以生成标签和数据：

<table class="table table-striped table-bordered">
    <thead class="thead-inverse">
    <tr >
        <th></th>
        @foreach (var responsiblityGroup in @Model.PAssets.GroupBy(x => x.Responsibility))
        {
            <th>@responsiblityGroup.Key</th>
        }
    </tr>
    </thead>
    <tbody>
    @foreach (var typeGroup in @Model.PAssets.GroupBy(x => x.Type))
    {
        <tr>
            <td>@typeGroup.Key</td>

        @foreach (var responsibiltyGroup in typeGroup.GroupBy(x => x.Responsibility))
        {
            <td>@responsibiltyGroup.Count()</td>
           }
        </tr>
    }
    </tbody>
</table>

但很明显，我没有为没有项目的群体设置一个单元格，并且数据错误地位于第一列可用，即

。

我想知道，有没有办法强制显示这些组的计数为0？

修改

以下评论我首先尝试在表格中构建数据：

        static void Main(string[] args)
    {
        var myList = new List<ListItem>();
        myList.Add(new ListItem("IT", "Cat"));
        myList.Add(new ListItem("IT", "Cat"));
        myList.Add(new ListItem("IT", "Owl"));
        myList.Add(new ListItem("DE", "Dog"));
        myList.Add(new ListItem("BU", "Cat"));
        myList.Add(new ListItem("BU", "Dog"));
        myList.Add(new ListItem("BU", "Dog"));
        myList.Add(new ListItem("PR", "Dog"));
        myList.Add(new ListItem("PR", "Owl"));

        var roleGroup = myList.GroupBy(x => x.Role).OrderBy(y => y.Key);
        var roleGroupNo = myList.GroupBy(x => x.Role).Count();

        var typeGroup = myList.OrderBy(x => x.Type).GroupBy(x => x.Type);
        var typeGroupNo = myList.GroupBy(x => x.Type).Count();

        var roleGroupHeader = new string[roleGroupNo];


        var roleIndex = -1;
        foreach (var header in roleGroup)
        {
            roleIndex++;
            roleGroupHeader[roleIndex] = header.Key;
        }

        var typeGroupHeader = new string[typeGroupNo];

        var typeIndex = -1;
        foreach (var header in typeGroup)
        {
            typeIndex++;
            typeGroupHeader[typeIndex] = header.Key;
        }

        var dataGrid = new int[roleGroupNo, typeGroupNo];

        foreach (var item in myList)
        {
            int x = Array.IndexOf(roleGroupHeader, item.Role);
            int y = Array.IndexOf(typeGroupHeader, item.Type);

            dataGrid[x, y]++;
        }
        Console.Write($"    ");
        for (int i = 0; i < typeGroupNo; i++)
        {
            Console.Write($"{typeGroupHeader[i]},");
        }
        Console.WriteLine();
        for (int i = 0;  i < roleGroupNo; i++)
        {
            Console.Write($"{roleGroupHeader[i]},   ");
            for (int j = 0; j < typeGroupNo; j++)
            {
                Console.Write($"{dataGrid[i, j]},");
            }
            Console.WriteLine();
        }



        Console.ReadLine();
    }
}

public class ListItem
{
    public string Role { get; set; }
    public string Type { get; set; }

    public ListItem(string role, string type)
    {
        this.Role = role;
        this.Type = type;
    }
}

console result