Invalid XML characters

ADO.NET replaces invalid XML characters found in custom field names and parameter names. The invalid characters are replaced with "_xNNNN_" where "N" is a hexadecimal code that equals the original character.

This XSD shows how the node for a custom field named “BAD%FIELD$NAME” is configured with the hexadecimal numbers for “%” and “$”. The invalid XML characters % and $ in the custom field name BAD%FIELD$NAME are converted to hexadecimal equivalents”_x0025_” and “_x0024_” in the XSD.