List model --> orderbydescending System.DateTime does not work?
13,229
OrderByDescending
method does not order in place, you need to re-assign again:
modelMyInventory = modelMyInventory.OrderByDescending(m => m.StockDate);
Author by
fletchsod
I'm a programmer working for software company for car dealership. I have done some .NET, JavaScript, C# and PHP. My dream is to have lot of free time working on open source software to help benefit people.
Updated on June 05, 2022Comments
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fletchsod almost 2 years
Sorry if this is a duplicate but I can't find a StackOverflow post that works for me.
I'm getting miffed over learning how to use list model w/ linq. My problem here is sorting by DateTime had no effect. I'm using .NET framework v4.5. I'm using SQL DataReader to read data into list model, but instead of writing/posting sql object, I'm gonna manually specify the adding of data to list model manually for this posting.
public MyInventory : IDisposable { public MyInventory { PurchaseId = -1; StockDate = null; } public void Dispose() { //PurchaseId... StockDate = null; } public long PurchaseId { get; set; } public DateTime? StockDate { get; set; } } List<MyInventory> modelMyInventory = new List<MyInventory>(); modelMyInventory.Add(new MyInventory { PurchaseId = 2, StockDate = DateTime.Parse("01-02-2010") }); modelMyInventory.Add(new MyInventory { PurchaseId = 5, StockDate = DateTime.Parse("01-03-2011") }); modelMyInventory.Add(new MyInventory { PurchaseId = 7, StockDate = DateTime.Parse("01-01-2010") }); modelMyInventory.OrderByDescending(m => m.StockDate);
Thanks...