NLog.Elmah

Sep 18, 2014

2 mins read

NLog NuGet
N log Nu get

NLog.Elmah套件，是用來擴充NLog的Target，可以寫到Elmah去 Elmah的用法可以參考之前的筆記 在設定好Elmah之後，開始來安裝NLog.Elmah 首先透過NuGet來安裝套件

[![](http://3.bp.blogspot.com/-7-Ra6YAOsCg/VBqk41izCYI/AAAAAAAABmI/cfGfIw-fulU/s1600/01.%E5%AE%89%E8%A3%9D%E5%A5%97%E4%BB%B6.png)](http://3.bp.blogspot.com/-7-Ra6YAOsCg/VBqk41izCYI/AAAAAAAABmI/cfGfIw-fulU/s1600/01.%E5%AE%89%E8%A3%9D%E5%A5%97%E4%BB%B6.png)

再來設定NLog來套用Elmah 主要是透過extensions來引用NLog.Elmah這個Assembly 就可以透過Elmah這個Target，把Log寫到Elmah去

<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

&lt;extensions&gt;
    &lt;add assembly="NLog.Elmah"/&gt;
&lt;/extensions&gt;

&lt;targets&gt;
    &lt;target xsi:type="Elmah" name="elmah"
            layout="${longdate} ${uppercase:${level}} ${message}"/&gt;
&lt;/targets&gt;

&lt;rules&gt;
    &lt;logger name="*" minlevel="Trace" writeTo="elmah" /&gt;
&lt;/rules&gt;



</nlog>

就可以在elmah中看到寫出的記錄，只是沒有Type，HttpStatusCode也都是0

[![](http://2.bp.blogspot.com/-IlyVebdJVBw/VBqmnO3VBJI/AAAAAAAABmU/MfcOlbctXZQ/s1600/02.%E5%AF%AB%E5%87%BA.png)](http://2.bp.blogspot.com/-IlyVebdJVBw/VBqmnO3VBJI/AAAAAAAABmU/MfcOlbctXZQ/s1600/02.%E5%AF%AB%E5%87%BA.png)

如果加上LogLevelAsType="true"這個屬性

<?xml version="1.0" encoding="utf-8" ?>
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" autoReload="true">

&lt;extensions&gt;
    &lt;add assembly="NLog.Elmah"/&gt;
&lt;/extensions&gt;

&lt;targets&gt;
    &lt;target xsi:type="Elmah" name="elmah" LogLevelAsType="true"
            layout="${longdate} ${uppercase:${level}} ${message}"/&gt;
&lt;/targets&gt;

&lt;rules&gt;
    &lt;logger name="*" minlevel="Trace" writeTo="elmah" /&gt;
&lt;/rules&gt;



</nlog>

elmah的Type中，就會顯示Log的Level

[![](http://3.bp.blogspot.com/-5IPBWRrWs40/VBqmqaOZQPI/AAAAAAAABmc/6xaTP0h0oeg/s1600/03.%E5%A2%9E%E5%8A%A0Type.png)](http://3.bp.blogspot.com/-5IPBWRrWs40/VBqmqaOZQPI/AAAAAAAABmc/6xaTP0h0oeg/s1600/03.%E5%A2%9E%E5%8A%A0Type.png)

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