Saturday 21 March 2009

Detecting errors in ASP.NET MVC views

That was something annoying with ASP.NET MVC, but there is a simple solution...
this is a copy from ASP.NET MVC - RC Release Notes.



ASP.NET Compiler Post-Build Step

Currently, errors within a view file are not detected until run time. To let you detect these errors at compile time, ASP.NET MVC projects now include an MvcBuildViews property, which is disabled by default. To enable this property, open the project file and set the MvcBuildViews property to true, as shown in the following example:

<Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<MvcBuildViews>true</MvcBuildViews>
</PropertyGroup>

Note Enabling this feature adds some overhead to the build time.

You can update projects that were created with previous releases of MVC to include build-time validation of views by performing the following steps:

1. Open the project file in a text editor.

2. Add the following element under the top-most <propertygroup> element:

<MvcBuildViews>true</MvcBuildViews>

3. At the end of the project file, uncomment the <target name="AfterBuild">element and modify it to match the following example:

<Target Name="AfterBuild" Condition="'$(MvcBuildViews)'=='true'">
<AspNetCompiler VirtualPath="temp" PhysicalPath="$(ProjectDir)\..\$(ProjectName)" />
</Target>

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