Get only Files with specific extension in C# and VB.Net

You can do this way.

Namespace

C#

using System.Linq;

VB.Net

Imports System.Linq

Code

C#

string[] files = Directory.GetFiles(ImageUploadPath).Where(f => f.EndsWith("png")).ToArray();
foreach (string file in files)
{

}

VB.Net

Dim files As String() = Directory.GetFiles(ImageUploadPath).Where(Function(f) f.EndsWith("png")).ToArray()
For Each file As String In files

Next