Maybe I could just do as follows (in f#):
1Response.Redirect("/myendpoint", 302) |> ignoreLOL, this is not going to work in the
Client.fs
: it's just wasting a network roundtrip. I have to check if the View Binding mechanism works between two different template holes or I have to find a different solution (no idea which one at the moment)
Edit
WebSharper is awesome! Triggering the Submitter
does work between two different template holes! (while setting the Var
has no effect, I'm not sure why...).
(Sorry to post here, it doesn't seem related but) I've moved the latest changes of this project to the development server (IIS) and I see a strange error. All fine locally, so... something wrong in my manual deploy? Actually, now I've also used the automatic Web Deploy and the error persists: maybe it is not a deploy issue. It's unfortunate that I can't really analyse what's exactly happening with this stack trace: WebSharper scripts from the Chrome debugger are not clear enough for me, as a beginner.
1 2 3 4 5 6 7 8
WebSharper.Web.js?h=1514962264:481 Uncaught TypeError: Cannot read property 'apply' of undefined at typeFunction.get_Body (WebSharper.Web.js?h=1514962264:481) at typeFunction.Body (WebSharper.Web.js?h=1514962264:472) at a$1 (WebSharper.Main.js?h=-1912156602:579) at WebSharper.Main.js?h=-1912156602:598 at Object.Arrays.iter (WebSharper.Main.js?h=-1912156602:2364) at WebSharper.Main.js?h=-1912156602:596 at HTMLDocument.ready (WebSharper.Main.js?h=-1912156602:615)
or after some tentative changes
1 2 3 4 5 6 7 8 9 10
Uncaught TypeError: Cannot read property 'Client' of undefined at WebSharper.Web.js?h=1514962264:480 at Object.Arrays.fold (WebSharper.Main.js?h=-1912156602:2298) at typeFunction.get_Body (WebSharper.Web.js?h=1514962264:478) at typeFunction.Body (WebSharper.Web.js?h=1514962264:472) at a$1 (WebSharper.Main.js?h=-1912156602:579) at WebSharper.Main.js?h=-1912156602:598 at Object.Arrays.iter (WebSharper.Main.js?h=-1912156602:2364) at WebSharper.Main.js?h=-1912156602:596 at HTMLDocument.ready (WebSharper.Main.js?h=-1912156602:615)
Edit It was indeed a deploy issue. I had to double check and manually move all the bin/content/scripts folders to the server. Afaics, I can't trust VS publish features for this kind of projects
On a side note, is Async.RunSynchronously
missing from JavaScript?
Oh, I see it is written in the Documentation that "there is no way to use it"
I'm using it when I set the selected attribute of the options from the Client to store it in the Session...
Should I duplicate the RPC with a synch version? The client function is returning the dynamic html dsl to the server page so it is not obvious that I can wrap it into an Async.StartImmediate
... Anyway, I suspect that at the time of the html construction the Session is null
, so, if I need to set a default value for the dropdown by reading it from a session variable, maybe I must intercept it during a later event (page load event? (*)): that should solve both two problems.
(*) Yep, I can fire the on.afterRender SetInitSession
of the select
itself
1 2 3 4 5 6 7 8
let SetInitSession (str:string) (el:Dom.Element) = Console.Log("Setting initial session") async { let sel = JS.Document.GetElementById("DropDownList") |> As<HTMLSelectElement> let opt = sel.NamedItem(str) // assuming attr.id is correctly set opt.Selected <- true do! Server.SetSession(str) } |> Async.StartImmediate
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I have a DropDownList which is setting a Session variable in its server-side "change" event. If I try to translate it to WebSharper, I have to write a Client code instead
Clearly, I can't set the Session variable from JavaScript, therefore I write the RPC code in
Remoting.fs
and I call it from the above Client
So far, so good: everything works as expected! WebSharper is great!
Now however in my old asp.net DropDownList code-behind I have a (in c#)
You have to consider that I have a Template with 2 different holes where I replace the body and the select option
so I'm afraid I can't use a View Binding in WebSharper, is it correct?
The idea behind the
Response.Redirect
is that the server should produce a different table in the body (the session variable will be, eventually, a parameter for sql db retrieval)Maybe I could just do as follows (in f#):
Can I be type-safe for the url string in the
Client.fs
?I think I've done with this translation of the DropDownList and my first test is successful! :-) I can see the session variable correctly set from the other server RPC call for the SQL retrival!
Is there anything I am missing or is my WebSharper code fair enough?