public void Render(ViewContext context, TextWriter writer)
{
Precondition.Require(context, () => Error.ArgumentNull("context"));
Type type = BuildManager.GetCompiledType(ViewPath);
object instance = null;
if (type != null)
instance = Activator.Create(context, type);
Precondition.Require(instance, () => Error.CouldNotCreateView(ViewPath));
RenderView(context, writer, instance);
}
/// <summary>
/// Renders the view page to the response.
/// </summary>
public virtual void RenderView(ViewContext context)
{
_viewContext = context;
InitHelpers(context);
ID = Guid.NewGuid().ToString();
context.Context.Server.Execute(HttpHandlerWrapper.Wrap(this), _output, true);
}
/// <summary>
/// Instantiates and initializes the Ajax, Html, and Url properties.
/// </summary>
public virtual void InitHelpers(ViewContext context)
{
Precondition.Require(context,
() => Mvc.Error.ArgumentNull("context"));
SetContentType(context.Context);
_parameters = context.Context.Request.Parameters;
_html = new HtmlHelper(context);
_url = new UrlHelper(context);
_ajax = new AjaxHelper(context);
_validation = new ValidationHelper(context);
}
/// <summary>
/// When called by the action invoker, renders the view to the response.
/// </summary>
/// <param name="context"></param>
public override void Execute(ControllerContext context)
{
Precondition.Require(context, () => Error.ArgumentNull("context"));
if (String.IsNullOrEmpty(ViewName))
ViewName = context.RouteData.GetRequiredValue<string>("action");
ViewEngineResult result = null;
if (View == null)
{
result = FindView(context);
View = result.View;
}
ViewContext vc = new ViewContext(context, View, ViewData, TempData);
vc.ModelState = ModelState;
try
{
View.Render(vc, context.Context.Response.Output);
}
finally
{
if(result != null)
result.Engine.ReleaseView(context, View);
}
}
protected abstract void RenderView(ViewContext context, TextWriter writer, object instance);
public ValidationHelper(ViewContext context)
{
Precondition.Require(context, () => Error.ArgumentNull("context"));
_context = context;
}
public virtual void RenderView(ViewContext context)
{
context.Context.Response.Cache.SetExpires(DateTime.Now);
ControlContainerPage page = new ControlContainerPage(this);
page.Output = _output;
string contentType = context.Context.Response.ContentType;
page.RenderView(context);
context.Context.Response.ContentType = contentType;
}
