我有两个要返回到 View 的列表,“添加”和“已删除”。但是目前我只能返回“已添加”或“已删除”。如何在一个对象中同时返回两个对象?我对MVC还是很陌生,所以如果这段代码很乱,我们深表歉意!

public ActionResult Index()
    {
        // Excel upload history

        var fptexcel = db.FPTStaticDataRatedFinancialAssetBase
                       .OrderBy(e => e.FORATExcelId)
                       .Select(e => e.FORATExcelId).Max();

        var fptexcelprevious = fptexcel - 1;

        var newassets = db.FPTStaticDataRatedFinancialAssetBase.OfType<FPTStaticDataRatedFinancialAssetBase>()
                        .Where(c => c.FORATExcelId == fptexcel || c.FORATExcelId == fptexcelprevious)
                        .GroupBy(x => x.Name)
                        .Where(c => c.Count() == 1)
                        .Select(y => y.FirstOrDefault()).ToList();

        var added = db.FPTStaticDataRatedFinancialAssetBase.OfType<FPTStaticDataRatedFinancialAssetBase>()
                         .Where(x => x.FORATExcelId == fptexcelprevious)
                         .Select(x => x).ToList();

        var removed = db.FPTStaticDataRatedFinancialAssetBase.OfType<FPTStaticDataRatedFinancialAssetBase>()
                         .Where(x => x.FORATExcelId == fptexcel)
                         .Select(x => x).ToList();

        return View(newassets.Except(added).ToList());

    }

最佳答案

强烈键入您的 View ,以便将其作为关联模型,该模型是包含两个列表的自定义对象。请注意,此类对象通常称为“viewModel”。

例子:

您的viewModel:

public class MyViewModel
{
    public List<X> Added { get; set; }
    public List<X> Removed { get; set; }
}

您的 Controller :
public ActionResult Index()
{
    var viewModel = new MyViewModel
    {
        Added = ...,
        Removed = ...
    };
    return View(viewModel);
}

您的看法:
@model XXXXX.MyViewModel
...

10-05 21:04
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