从整数列表中删除所有负整数

Question

I need to remove all the negative values from a list of integers.

Dim cells As List(Of Integer) = GridView1.GetSelectedRows().ToList()

cells returns a list of rows getting from the devexpress grid view. But the filter/group option will return negative integers... How can I either remove those negative values from cells or prevent them from getting in to cells?

Answer 1

You can use this code :

    Dim NumberOfElements As Integer = cells.Count - 1
    Dim i As Integer = 0
    While i <= NumberOfElements
        If cells(i) < 0 Then
            cells.RemoveAt(i)
            NumberOfElements = NumberOfElements - 1
        Else
            i = i + 1
        End If
    End While

Answer 2

  Dim postiveCells As List(Of Integer) = cells.[Where](Function(x) x > 0).ToList() 

我想我找到了一种在vb.net中放置where子句的方法谢谢您的提示