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Add further logging configuration samples
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‎Logging/Logging-AddIn.dna‎

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<DnaLibrary Name="Logging Add-In" RuntimeVersion="v4.0">
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<ExternalLibrary Path="Logging.dll" LoadFromBytes="true" Pack="true" />
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<!--
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The RuntimeVersion attribute above allows two settings:
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* RuntimeVersion="v2.0" - for .NET 2.0, 3.0 and 3.5
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* RuntimeVersion="v4.0" - for .NET 4 and 4.5
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Additional referenced assemblies can be specified by adding 'Reference' tags.
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These libraries will not be examined and registered with Excel as add-in libraries,
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but will be packed into the -packed.xll file and loaded at runtime as needed.
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For example:
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<Reference Path="Another.Library.dll" Pack="true" />
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Excel-DNA also allows the xml for ribbon UI extensions to be specified in the .dna file.
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See the main Excel-DNA site at http://excel-dna.net for downloads of the full distribution.
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-->
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<Reference Path="NLog.dll" Pack="true" />
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<Reference Path="log4net.dll" Pack="true" />
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</DnaLibrary>

‎Logging/Logging-AddIn.xll.config‎

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<?xml version="1.0" encoding="utf-8" ?>
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<configuration>
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<!-- This .config file contains the various configuration examples.
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<!--
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This .config file contains the various configuration examples.
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log4net
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NLog
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* log4net
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* NLog
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* ExplicitDefaults
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* DisableLogging
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* VerboseLogging
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* FileLogging
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-->
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<!-- ============= Begin NLog ================ -->
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<!--
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<configSections>
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<section name="nlog" type="NLog.Config.ConfigSectionHandler, NLog"/>
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</configSections>
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<logger name="*" minlevel="Warn" writeTo="debugger" />
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</rules>
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</nlog>
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-->
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<!-- ============= End NLog ================ -->
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<!-- ============= Start ExplicitDefaults ============ -->
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<!--
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This part of the sample has a configuration that is equivalent to the default configuration (when there are no entries in the .config file.
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This is a good start for customization of the levels or adding trace listeners.
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By default the TraceSource is configured to source only Warning, Error and Fatal.
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the configuration can override this by setting switchValue attribute of the source tag (or create an explicit SourceSwitch).
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switchValue is a SourceLevel: Off, Critical, Error, Warning (default), Information, Verbose, All
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The DefaultTraceListener is automatically added to all TraceSources. It will write messages to the Debug output (if a debugger is attached to Excel).
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The DefaultTraceListener can be removed with a <remove name="Default"> tag in the <listeners> subtree.
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Excel-DNA adds the LogDisplayTraceListener to the TraceSource. By default, only Warning and Error messages are written to the LogDisplay,
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and the LogDisplay window is only shown if at least one Error message is written.
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The level of messages written to the LogDisplay can be adjusted by explicitly adding a "LogDisplay" listener of the relevant type,
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and setting the listener's filter to an EventTypeFilter with the correct setting.
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The EventTypeFiler's initializeData attribute is again a SourceLevel, i.e. one of: Off, Critical, Error, Warning (default), Information, Verbose, All.
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We use this filter to disable the LogDisplay completely - just set the filter to initializeData="Off".
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-->
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<!--
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<system.diagnostics>
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<sources>
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<source name="ExcelDna.Integration" switchValue="Warning">
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<listeners>
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<add name="LogDisplay" type="ExcelDna.Logging.LogDisplayTraceListener,ExcelDna.Integration">
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<filter type="System.Diagnostics.EventTypeFilter" initializeData="All"/>
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</add>
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</listeners>
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</source>
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</sources>
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</system.diagnostics>
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-->
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<!-- ============= End ExplicitDefaults ============ -->
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<!-- ============== Start DisableLogging ============= -->
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<!-- This sample configuration disables all logging -->
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<!--
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<system.diagnostics>
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<sources>
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<source name="ExcelDna.Integration" switchValue="Off">
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</source>
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</sources>
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</system.diagnostics>
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-->
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<!-- ============== End DisableLogging ============= -->
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<!-- ============== Start VerboseLogging ============= -->
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<!-- This sample configuration disables all logging -->
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<!--
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<system.diagnostics>
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<sources>
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<source name="ExcelDna.Integration" switchValue="All">
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</source>
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</sources>
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</system.diagnostics>
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-->
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<!-- ============== End VerboseLogging ============= -->
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<!-- =============== Start FileLogging ============== -->
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<!-- The initializeData attribute of the TextWriterTraceListener indicates the file path, either absolute or relative to the .xll.config file directory -->
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<system.diagnostics>
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<trace autoflush="false" indentsize="4"/>
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<sources>
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<source name="ExcelDna.Integration" switchValue="All">
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<listeners>
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<remove name="Default"/>
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<add name="LogDisplay" type="ExcelDna.Logging.LogDisplayTraceListener,ExcelDna.Integration">
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<filter type="System.Diagnostics.EventTypeFilter" initializeData="Off"/>
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</add>
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<add name="File" type="System.Diagnostics.TextWriterTraceListener" initializeData="TextWriterOutput.log" />
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</listeners>
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</source>
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</sources>
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</system.diagnostics>
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<!-- =============== End FileLogging ============== -->
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</configuration>

‎Logging/TestLoggers.cs‎

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}
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public void AutoClose() { }
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public static string GetFullPath(string fileName)
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{
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return System.IO.Path.GetFullPath(fileName);
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}
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}
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}

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