add multiple SPList to SPListItemCollection

问题

I have 1 SPList to 1 SPListItemCollection , I want to add two SPList to 1 SPListItemCollection

1

SPList list = SPContext.Current.Web.Lists[Constants.ListNames.Name];
SPListItemCollection allItems = list.GetItems(spQuery);

2

SPList list = SPContext.Current.Web.Lists[Constants.ListNames.Name];
SPList list2 = SPContext.Current.Web.Lists[Constants.ListNames.Name2];
    SPListItemCollection allItems = list.GetItems(spQuery);
allItems??? 

回答1:

I always like to use List<> to handle these. To do that, make sure you add

using System.Linq;

Then

List<SPListItem> allItems = new List<SPListItem>();
allItems.AddRange(list.GetItems(spQuery).Cast<SPListItem>().ToList());
allItems.AddRange(list2.GetItems(spQuery).Cast<SPListItem>().ToList());

//Do something to the "allItems"

That's it

来源：https://stackoverflow.com/questions/34099035/add-multiple-splist-to-splistitemcollection