将新列表项添加到列表 <T> 在MVC，Razor，ASP.NET中使用表单

Question

I am working on an order form. The page loads the previously saved order items into a table. The first row of the table is the add new item row with Html.EditoFor() like this:

@Html.EditorFor(m => m.OrderItems[0].Description)

Of course the [0] represents in this case nothing, this is just to demonstrate the goal. To show the existing items, a for loop is used:

for (int i = 1; i < Model.OrderItems.Count; i++)
{ @Html.EditorFor(d => d.OrderItems[i].Description)}

The order items are stored in an IEnumerable list with four properties (Desc, Partnum, Cost, Qty).

The question is: the editor row is a form and when the user presses the Add button on the page how can that form add the new item to the existing list?

Answer 1

您可以将“新项目”发布到另一个操作中，参数是“新项目”，您现在可以修改现有列表