vb.net 按降序排列数字
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Sorting numbers in descending order
提问by SpongeBob SquarePants
I have 20 textboxes. each contains a particular number . I want the textbox1 to textboxN to have the numbers in the descending order. If any of the textbox has a zero value then I want to leave that textbox as it is. A sample code in vb.net needed.
我有 20 个文本框。每个都包含一个特定的数字。我希望 textbox1 到 textboxN 的数字按降序排列。如果任何文本框的值为零，那么我想保留该文本框原样。需要 vb.net 中的示例代码。
回答by kalim ullah
'for sorting the elements in descending order
'按降序对元素进行排序
dim array(4) as integer
array(4)={4,6,2,9,1}
'first sort the array and then reverse it as
array.sort(4)
array.reverse(4)
sortlistbox.item.add(array(4))
回答by Luke
Dim txt As New List(Of TextBox)
Dim q = From i In txt
Where CInt(i.Attributes("value")) > 0
Order By CInt(i.Attributes("value")) Descending
Select i
Whana try some simple linq query over your collection?
想对您的收藏尝试一些简单的 linq 查询吗？
回答by Luke
This one is a bit old, but I ran into the same problem.
这个有点旧，但我遇到了同样的问题。
Using MSDN I found this: Enumerable.OrderBy Method (IEnumerable, Func)
使用 MSDN 我发现了这个：Enumerable.OrderBy Method (IEnumerable, Func)
If you just add .Reverseto that query, it's descending:
如果你只是添加.Reverse到该查询，它是降序的：
Dim query As IEnumerable(Of Pet) = pets.OrderBy(Function(pet) pet.Age).Reverse
回答by delta2echo
@Thom Morgan
@汤姆摩根
This one is a bit old, but I ran into the same problem. Using MSDN I found this: Enumerable.OrderBy Method (IEnumerable, Func) If you just add .Reverse to that query, it's descending:
这个有点旧，但我遇到了同样的问题。使用 MSDN 我发现这个： Enumerable.OrderBy Method (IEnumerable, Func) 如果你只是添加 .Reverse 到那个查询，它是降序的：
Dim query As IEnumerable(Of Pet) = pets.OrderBy(Function(pet) pet.Age).Reverse
This worked like a charm! Thank you!
这就像一个魅力！谢谢！
