/// <summary>
/// Attempts to create a WebPageBase instance from a virtualPath and wraps complex compiler exceptions with simpler messages
/// </summary>
protected virtual WebPageBase CreatePageFromVirtualPath(
string virtualPath,
HttpContextBase httpContext,
Func <string, bool> virtualPathExists,
DisplayModeProvider displayModeProvider,
IDisplayMode displayMode
)
{
try
{
DisplayInfo resolvedDisplayInfo = displayModeProvider.GetDisplayInfoForVirtualPath(
virtualPath,
httpContext,
virtualPathExists,
displayMode
);
if (resolvedDisplayInfo != null)
{
var webPage = VirtualPathFactory.CreateInstance <WebPageBase>(
resolvedDisplayInfo.FilePath
);
if (webPage != null)
{
// Give it its virtual path
webPage.VirtualPath = virtualPath;
webPage.VirtualPathFactory = VirtualPathFactory;
webPage.DisplayModeProvider = DisplayModeProvider;
return(webPage);
}
}
}
catch (HttpException e)
{
// If the path uses an unregistered extension, such as Foo.txt,
// then an error regarding build providers will be thrown.
// Check if this is the case and throw a simpler error.
BuildManagerExceptionUtil.ThrowIfUnsupportedExtension(virtualPath, e);
// If the path uses an extension registered with codedom, such as Foo.js,
// then an unfriendly compilation error might get thrown by the underlying compiler.
// Check if this is the case and throw a simpler error.
BuildManagerExceptionUtil.ThrowIfCodeDomDefinedExtension(virtualPath, e);
// Rethrow any errors
throw;
}
// The page is missing, could not be compiled or is of an invalid type.
throw new HttpException(
String.Format(
CultureInfo.CurrentCulture,
WebPageResources.WebPage_InvalidPageType,
virtualPath
)
);
}
internal static WebPageBase CreateInstanceFromVirtualPath(string virtualPath, IVirtualPathFactory virtualPathFactory)
{
// Get the compiled object
try
{
WebPageBase webPage = virtualPathFactory.CreateInstance <WebPageBase>(virtualPath);
// Give it its virtual path
webPage.VirtualPath = virtualPath;
// Assign it the VirtualPathFactory
webPage.VirtualPathFactory = virtualPathFactory;
return(webPage);
}
catch (HttpException e)
{
BuildManagerExceptionUtil.ThrowIfUnsupportedExtension(virtualPath, e);
throw;
}
}