Hi,
Here's you can get File Name.
You can split the string using slash(/) character and then with dot(.) character.
C#
string mystring = "https://res.cloudinary.com/hspa/image/upload/v1123455/test2/eid.jpg";
string fileName = mystring.Split('/')[mystring.Split('/').Length - 1].Split('.')[0];
VB.Net
Dim mystring As String = "https://res.cloudinary.com/hspa/image/upload/v1123455/test2/eid.jpg"
Dim fileName As String = mystring.Split("/"c)(mystring.Split("/"c).Length - 1).Split("."c)(0)