How Do I Access Named Capturing Groups in a .NET Regex?

Accessing named capture groups in .NET regular expressions

When using regular expressions in C#, it is crucial to understand how to access named capturing groups. This allows you to easily retrieve specific portions of matching text.

In your example, you define two named capturing groups: "link" and "name". However, you are currently trying to access these groups using a CaptureCollection, which only provides access to unnamed groups.

To access a named capturing group, you need to use the GroupCollection property of the Match object. Each Match object contains a collection of groups, including named groups and unnamed groups. You can index a GroupCollection using the name of the capturing group to retrieve the corresponding matches.

The following is a modified version of the code that demonstrates how to access a named capture group:

string page = Encoding.ASCII.GetString(bytePage);
Regex qariRegex = new Regex("<td><a href=\"(?<link>.*?)\">(?<name>.*?)</a></td>");
MatchCollection mc = qariRegex.Matches(page);

foreach (Match m in mc)
{
    MessageBox.Show(m.Groups["link"].Value);
    MessageBox.Show(m.Groups["name"].Value);
}

This code iterates through the collection of Match objects and for each match it uses a GroupCollection to access the "link" and "name" capturing groups and display their values.

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