/// <summary>
/// Returns a string description of a controller action:
/// for a ViewResult it renders the HTML,
/// for a RedirectResult it returns the redirect-location
/// </summary>
/// <param name="actionResultToDescribe">
/// ActionResult to describe in some useful manner for diagnostics purposes in a log
/// message
/// </param>
/// <param name="compressWhiteSpace">
/// If true (default) then consecutive whitespace characters are replaced by single whitespace
/// </param>
/// <returns></returns>
public static string DescribeActionResultForLogging(
ActionResult actionResultToDescribe,
bool compressWhiteSpace = true)
{
if (null == actionResultToDescribe)
{
return("null ActionResult");
}
try
{
if (actionResultToDescribe is ViewResult)
{
var fakeController = new DummyControllerForRendering();
string htmlContent = fakeController.RenderActionResultToString((ViewResult)actionResultToDescribe);
if (compressWhiteSpace)
{
htmlContent = System.Text.RegularExpressions.Regex.Replace(htmlContent, @"\s+", " ");
}
return(htmlContent);
}
if (actionResultToDescribe is RedirectResult)
{
var rr = (RedirectResult)actionResultToDescribe;
return($"Redirect to {rr.Url}");
}
if (actionResultToDescribe is RedirectToRouteResult)
{
var rr = (RedirectToRouteResult)actionResultToDescribe;
var fakeController = new DummyControllerForRendering();
var url = UrlHelper.GenerateUrl(
rr.RouteName,
null,
null,
rr.RouteValues,
RouteTable.Routes,
fakeController.ControllerContext.RequestContext,
false);
return($"Redirect to {url}");
}
return($"{actionResultToDescribe.GetType().FullName} {actionResultToDescribe}");
}
catch (Exception ex)
{
return($"Exception describing {actionResultToDescribe.GetType().FullName} : {ex}");
}
}
/// <summary>
/// Utility for Web-Forms apps to render an MVC ActionResult to the current response
/// </summary>
/// <param name="actionResult">MVC ActionResult to render / execute</param>
/// <param name="httpContext">optional httpContext to override the default </param>
public static void RenderActionResultToHttpContext(ActionResult actionResult, HttpContextBase httpContext = null)
{
var fakeController = new DummyControllerForRendering();
actionResult.ExecuteResult(fakeController.ControllerContext);
}
