serilog-sinks-richtextbox

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I have a process that parses XML files. One of those files is corrupt. In my try..catch block, I Log.Warning the ex.message.

That message is: "Name cannot begin with the '" & ChrW(1) & "' character, hexadecimal value 0x01. Line 1084, position 71." Note that this is the debugger message, so the CharW(1) is actually a 01h character.

This causes the whole parent app to crash, with these messages (and I have substituted the string [01h] for the actual character):

XamlParseException: '[01h]', hexadecimal value 0x01, is an invalid character. Line 1, position 468.

Error parsing `<Paragraph xmlns ="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xml:space="preserve"><Run Foreground="#808080">[</Run><Run Foreground="#c0c0c0">14:24:41</Run><Run Foreground="#808080"> </Run><Run Foreground="#ffff00">WRN</Run><Run Foreground="#808080">] </Run><Run Foreground="#00ffff">_[My File Name]_</Run><Run Foreground="#ffffff">: </Run><Run Foreground="#00ffff">Name cannot begin with the &apos;[01h]&apos; character, hexadecimal value 0x01. Line 1084, position 71.</Run>
</Paragraph>` to XAML: '[01h]', hexadecimal value 0x01, is an invalid character. Line 1, position 468.
An unhandled exception of type 'System.Reflection.TargetInvocationException' occurred in WindowsBase.dll
Exception has been thrown by the target of an invocation.