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POWhy does PreApplicationStartMethodAttribute() not work in SharePoint 2013?
 

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  1. POWhy does PreApplicationStartMethodAttribute() not work in SharePoint 2013?
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    <p>In .NET 4(.5) there is this amazing <code>Attribute</code>: <a href="http://msdn.microsoft.com/en-us/library/ee818829.aspx" rel="nofollow"><code>PreApplicationStartMethodAttribute</code></a>, I want to use it in SharePoint 2013 so I don't have to edit the <code>app_start</code> method in the <code>global.asax</code> file directly.</p> <p>Since SP2013 runs the correct version of .NET I assumed that this attribute would just work... but this seems not to be the case.</p> <p>Has anyone figured out how to use it yet? or explain why it cannot work?</p> <p><strong>Small update</strong>: In the system.web dll I can see <a href="http://msdn.microsoft.com/en-us/library/ee818829.aspx" rel="nofollow"><code>PreApplicationStartMethodAttribute</code></a> is called by the folowing class.</p> <pre><code>// System.Web.Compilation.BuildManager internal static ICollection&lt;MethodInfo&gt; GetPreStartInitMethodsFromAssemblyCollection(IEnumerable&lt;Assembly&gt; assemblies, bool buildingFromCache) { List&lt;MethodInfo&gt; list = new List&lt;MethodInfo&gt;(); foreach (Assembly current in assemblies) { PreApplicationStartMethodAttribute[] array = null; try { array = (PreApplicationStartMethodAttribute[])current.GetCustomAttributes(typeof(PreApplicationStartMethodAttribute), true); } catch { } if (array == null || !array.Any&lt;PreApplicationStartMethodAttribute&gt;()) { if (buildingFromCache) { return null; } } else { PreApplicationStartMethodAttribute[] array2 = array; for (int i = 0; i &lt; array2.Length; i++) { PreApplicationStartMethodAttribute preApplicationStartMethodAttribute = array2[i]; MethodInfo methodInfo = null; if (preApplicationStartMethodAttribute.Type != null &amp;&amp; !string.IsNullOrEmpty(preApplicationStartMethodAttribute.MethodName) &amp;&amp; preApplicationStartMethodAttribute.Type.Assembly == current) { methodInfo = BuildManager.FindPreStartInitMethod(preApplicationStartMethodAttribute.Type, preApplicationStartMethodAttribute.MethodName); } if (!(methodInfo != null)) { throw new HttpException(SR.GetString("Invalid_PreApplicationStartMethodAttribute_value", new object[] { current.FullName, (preApplicationStartMethodAttribute.Type != null) ? preApplicationStartMethodAttribute.Type.FullName : string.Empty, preApplicationStartMethodAttribute.MethodName })); } list.Add(methodInfo); } } } return list; } </code></pre> <p>If SharePoint 2013 is running on asp.net 4.0 I might have some luck invoking the following on the applicaton.</p> <pre><code>C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe </code></pre>
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