asp.net mvc - Convert Server Side Include to Razor -
i'm in process of upgrading/modifying asp.net webforms application mvc5 - ideally, razor engine (to allow automatic mobile layout page switching, , take advantage of mvc features).
we have hundreds of server-side includes, named *.inc. absolute gobs of them. application large have convert pages piecemeal - there no way @ once. (for idea of how big project , how long it's been around, entire source control history in vss upon our migration tfs 10gb. includes lots of media files, still. it's big, , it's not going away.)
is there way can convert these #!include calls renderpartial() or renderaction() call without renaming every single file .cshtml?
duplicating include file poor recommendation, because breaks dry.
ideally, i'd one partial view handles - guess take filename argument, , that's one-liner, can train convert these trivially.
i want sort of file-level caching. loading output disk & dumping output stream nice small sites...but isn't small site.
we have ascx file caching many of these includes - have no clue how write corresponding 1 in razor.
edit 1: these part non-code includes, i'm sure user control definition has snuck in few. i'd have rewrite those, assume answer "these pure html, no code"
edit 2: have situations include files nested (it wasn't me swear). include file can include other files. have caching ascx control handles recursively, it's matter of porting code.
edit 3: potential solution must work in layout cshtml files. we've got includes in existing master pages.
off top of head can think of 4 ways tackle this.
note: didn't bother caching mechanisms because that's design decision outside of question.
create controller/action render include you:
public class includecontroller : controller { // get: render public actionresult render(string path) { return new includeresult(path); } } public class includeresult : actionresult { private string _path { get; set; } public includeresult(string path) { _path = path; } public override void executeresult(controllercontext context) { // possibly check cache here, or let mvc handle cache @ action level // contents of include file output response context.httpcontext.response.write(file.openread(_path)); } } in view
@html.action("render", "include", new {path = "~/includes/test.inc"}) note: tried using filepathresult , seems return odd characters, hence custom includeresult
create htmlhelper extension:
public static class htmlextension { public static mvchtmlstring renderinclude(this htmlhelper helper, string path) { // check cache string output = file.readalltext(path); return new mvchtmlstring(output); } } in view
@html.renderinclude("~/includes/test.inc") this option think fit trying best purest approach, might not fit 'the way mvc things'
extend razorviewengine include files well:
i didn't explore 1 far, , way overkill trying achieve following blog has code samples should you: http://weblogs.asp.net/imranbaloch/view-engine-with-dynamic-view-location
then use standard html.partial code in views
@html.patial("~/includes/test.inc"); expose include contents in property of view model:
this seems cumbersome, still it's option.
public class viewmodel { public mvchtmlstring includecontents { get; set; } .... private getincludecontent(string path) { includecontents = new mvchtmlstring(file.readalltext(path)); } } then in view
@model.includecontents