How to convert System.Text.RegularExpressions.MatchCollection to Integer?

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1

I have a variable called Matches that is the output of Regex.Matches(StrReader.ReadToEnd(),"/Type\s*/Page[^s]")

This is a regex to get the number of pages in a pdf file

How could I convert this to an integer?

2

You can’t. MatchCollection is, well, a collection. Not a single value.

3

Hi,

Number is between words ‘Type’ and ‘Page’?
If so capture that number into group (using brackets) - regex should look like this: “/Type(\s*)/Page[^s]”.
Now for example ‘/Type 15/Page’ your first matching group will be ‘15’.
To Convert expression into integer try something like this:

Cint(Regex.Matches(StrReader.ReadToEnd(),"/Type(\s*)/Page[^s]")(0).Groups(1).ToString)

where (0) means first match in collection,
Groups(1) menas first group (brackets in regex)

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