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.NET: XML escaping a string

Posted by jpluimers on 2022/02/15

[Wayback] WILT: XML encode a string in .net « Benoit MARTIN’s Weblog:

Always wondered why I couldn’t find a method that would XML encode a string, effectively escaping the 5 illegal characters for XML. There is such a method but its location in the API is not intuitive at all. It’s in the System.Security namespace: [Wayback] SecurityElement.Escape(String) Method (System.Security) | Microsoft Docs

public static string? Escape (string? str);

Its usage is:

   tagText = System.Security.SecurityElement.Escape(tagText);

This will escape the 5 characters <, >, &, " and '

–jeroen

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