[英]Asp.net MVC - where query for multiple grids
Update 2 更新2
Thanks to both Thomas Boby and Sam C. Both had good answers and perfect solution to this problem! 感谢Thomas Boby和SamC。两个人都为这个问题提供了很好的答案和完美的解决方案!
Here's my problem: I want my view to show four grids/columns with different textboxes. 这是我的问题:我希望我的视图显示具有不同文本框的四个网格/列。 Example, when I create a Post Message I add a Priority level, 1-5, to it.
例如,当我创建发布消息时,我向其添加了1-5的优先级。
Now, I simply want to foreach every column where the "Priority = X", so the 1's shows on one column, and Posts with priority 2 shows on another column. 现在,我只想遍历“ Priority = X”的每一列,因此一列显示1,而另一列显示具有优先级2的帖子。 Do you get it?
你明白了吗? Or am I really bad at explaining this.
还是我真的不好解释这一点。
Model class: 型号类别:
public enum Priority
{
First = 1,
Second = 2,
Third = 3,
Forth = 4,
Fifth = 5,
}
public class Post
{
public int postId { get; set; }
public string postMsg { get; set; }
public Priority priority { get; set; }
}
In my view I would want to do it like this: 在我看来,我想这样做:
@foreach (var item in Model.Posts) // Where Model.priority = 1
{
<div class="col-md-2">
<div class=" panel panel-default">
@Html.DisplayFor(modelItem => item.postMsg, new { @class = "panel-body" })
</div>
</div>
}
@foreach (var item in Model.Posts) // Where Model.priority = 2
{
<div class="col-md-2">
<div class=" panel panel-default">
@Html.DisplayFor(modelItem => item.postMsg, new { @class = "panel-body" })
</div>
</div>
}
The thing is I don't know how to make the "Where Model.priority = 1" query. 问题是我不知道如何进行“ Where Model.priority = 1”查询。 I'm not sure if I can make a query like that in the foreach ?
我不确定是否可以在foreach中进行类似的查询?
Update 更新资料
To make things much more simpler: I want to have a different "Select Where" query for different divs. 使事情变得更加简单:我想为不同的div使用不同的“选择位置”查询。
something like this ??? 像这样的东西?
@foreach( var p in Enum.GetValues( typeof( Priority) ).Cast< Priority >().OrderBy(x=>(int)x) ) //sorted from first priority to fifth
{
@foreach (var item in Model.Posts.Where(x=>x.Priority == p))
{
<div class="col-md-2">
<div class=" panel panel-default">
@Html.DisplayFor(modelItem => item.postMsg, new { @class = "panel-body" })
</div>
</div>
}
}
Using System.Linq
something like: 使用
System.Linq
类似:
@foreach (var item in Model.Posts.Where(x => x.priority == Priority.First))
{
...
}
Would loop over every item with a priority of 1. 将优先级为1遍历每个项目。
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