looking for string within a string

I am sorry that I did not read this question more carefully when it was created more than a month ago. I assume that "url" .... "from within anchor tag" means you need the href attribute of an anchor tag in HTML. If so, then I suggest using the DOM to get data such as that from HTML.

Sanjeev,

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If its to get url from anchor control, then its simple.

http://www.c-sharpcorner.com" runat="server" id="a1">click

Response.Write(a1.HRef);

Do you know the length of the URL? You can use the SubString method to get a substring within a string.

Here is a code example that will give you a substring starting at 5th char and next 3 characters.

string str = "Mahesh Chand";
string sub = str.SubString(5, 3);

If you do not know the length, you can use IndexOfAny and LastIndexOfAny methods to find out position of last "/" within a string.