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== BuildProvider must be compiled into a different assembly than the other code in the App_Code folder==



<source lang="csharp">
You must add a BuildProvider to a separate subfolder because a BuildProvider must be compiled into a different assembly than the other code in the App_Code folder.
Define the CustomBuildProviders folder and registers the SimpleBuildProvider.
Whenever you add a file with the .simple extension to the App_Code folder, the SimpleBuildProvider automatically compiles a new class based on the file.
File: Web.Config
<configuration>
<system.web>
<compilation>
<codeSubDirectories>
<add directoryName="CustomBuildProviders"/>
</codeSubDirectories>
<buildProviders>
<add extension=".simple" type="MyNamespace.SimpleBuildProvider" />
</buildProviders>
</compilation>
</system.web>
</configuration></source>

== Creating a Custom BuildProvider==



<source lang="csharp">
ASP.NET page gets compiled dynamically into a .NET class in the background by a BuildProvider.
Whenever you create a file that has the extension .simple, the SimpleBuilderProvider builds a new class with the same name as the file in the background.
File: App_Code\SimpleBuildProvider.cs
using System;
using System.Web.rupilation;
using System.CodeDom;
using System.IO;
namespace MyNamespace
{
public class SimpleBuildProvider : BuildProvider
{
public override void GenerateCode(AssemblyBuilder ab)
{
string fileName = Path.GetFileNameWithoutExtension(this.VirtualPath);
string snippet = "public class " + fileName + @"{
public static void DoSomething(){}
}";
ab.AddCodeCompileUnit(this, new CodeSnippetCompileUnit(snippet));
}
}
}</source>

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в 15:30, 26 мая 2010

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