You can use a regular expression in the property value.

Using Amazon, I put 20 objects in the cart. This is the cart properties with 20 objects:

browser.Describe(new LinkDescription
{
TagName = @''A'',
InnerText = @''Cart0''
});

Using a regular expression, you can tell it to look for the Cart link with any value after it like this:

var cartlink = browser.Describe(new LinkDescription
{
TagName = @''A'',
InnerText = As.RegExp(@''Cart.*'')
});

If you were using Eclipse, you can do the same thing. Here's the syntax:

.idProp(new RegExpProperty(''RegExpValue'')