在Razor中循环浏览模型内容 [英] Looping through models content in Razor
问题描述
我想在剃刀视图中循环浏览模型中的每个项目,但希望将所有项目组合在一起.然后,我想遍历每个组.想象一下我有一张桌子:
I want to loop through each item in my model in my razor view but I want to group all items together. I then want to loop through each group. Imagine I have a table:
ID GroupNo GroupName
1 1 Group1
2 1 Group2
3 1 Group3
4 2 Group1
5 2 Group2
6 3 Group56
我想做类似的事情:
@foreach (var group in Model.GroupNo) {
<section>
<header>Group No is @group.GroupNo</header>
@foreach (var item in group) {
<p>GroupName: @item.GroupName</p>
}
</section>
}
所以我的输出是:
Group No is 1
GroupName: Group1
GroupName: Group2
GroupName: Group3
Group No is 2
GroupName: Group1
GroupName: Group2
Group No is 3
GroupName: Group56
这可能吗?
谢谢
推荐答案
是的,使用Linq GroupBy
可以很容易地做到这一点.我建议将您的视图更改为使用@model IEnumerable<IGrouping<string, MyModel>>
,您将这样填充:
Yes, this is easy to do using the Linq GroupBy
. I'd suggest changing your view to use @model IEnumerable<IGrouping<string, MyModel>>
, which you'd populate like this:
var groupModel = MyModelCollection.GroupBy(item => item.GroupNo).ToArray();
return View(groupModel);
然后,按照您编写的方式简单地遍历该组,除了使用group.Key
而不是group.GroupNo
来检索IGrouping的密钥:
Then, simply iterate through the group as you wrote, except using group.Key
instead of group.GroupNo
to retrieve IGrouping's key:
@foreach (var group in Model) {
<section>
<header>Group No is @group.Key</header>
@foreach (var item in group) {
<p>GroupName: @item.GroupName</p>
}
</section>
}
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