Retrieving specific value from an ArrayList in ASP.Net

Hi sat,

Please take reference to the below code and correct your code.

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    List<int> list = new List<int> { 65, 62, 60, 56, 52, 50, 26, 25, 20, 06, 05, 02 };
    int number = 23;
    list.Sort();
    int lower = 0, higher = 0;
    int index = list.BinarySearch(number);
    if (0 <= index)
    {
        lower = list[index + 1];
    }
    else
    {
        index = ~index;
        lower = list[index - 1];
    }
    higher = list.OrderBy(x => Math.Abs(x - number)).ThenByDescending(x => x).First();
    Response.Write(lower + " " + higher);
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    Dim list As List(Of Integer) = New List(Of Integer) From {
        65,
        62,
        60,
        56,
        52,
        50,
        26,
        25,
        20,
        6,
        5,
        2
    }
    Dim number As Integer = 23
    list.Sort()
    Dim lower As Integer = 0, higher As Integer = 0
    Dim index As Integer = list.BinarySearch(number)
    If 0 <= index Then
        lower = list(index + 1)
    Else
        index = Not index
        lower = list(index - 1)
    End If
    higher = list.OrderBy(Function(x) Math.Abs(x - number)).ThenByDescending(Function(x) x).First()
    Response.Write(lower & " " & higher)
End Sub

Output

20 25

Hi. Found my way out with following codes: 

if (list.Contains(number))
{
    lower = number;
}
else
{
    int[] revisedlist = list.Where(x => x < number).ToArray();
    lower = revisedlist.Max();
}

Thanks again. sat