What are invalid characters in XML

Question

I am working with some XML that holds strings like:

This is a string

Some of the strings that I am passing to the

Answer 1

ampersand (&) is escaped to &

double quotes (") are escaped to "

single quotes (') are escaped to ' 

less than (<) is escaped to < 

greater than (>) is escaped to >

In C#, use System.Security.SecurityElement.Escape or System.Net.WebUtility.HtmlEncode to escape these illegal characters.

string xml = "it's my \"node\" & i like it 0x12 x09 x0A  0x09 0x0A ";
string encodedXml1 = System.Security.SecurityElement.Escape(xml);
string encodedXml2= System.Net.WebUtility.HtmlEncode(xml);


encodedXml1
"<node>it's my "node" & i like it 0x12 x09 x0A  0x09 0x0A <node>"

encodedXml2
"<node>it's my "node" & i like it 0x12 x09 x0A  0x09 0x0A <node>"