ASP Razor pages - async and update page

Question

Hello

i'm new to asp Razor pages, i'm trying to build an app that aska server (external server not blazor) some data in XML.
All ok, until i try to wait for results and update the page.
after this method, how to update the page ? Do you have anylink to refer to?:

public async void OnPostQueryOpening (string Id, string FormType, string OpeningName)
{
LoadOpenings("");
await Calcola(Id, FormType);

        HERE : HOW TO UPDATE THE PAGE WITHOUT LOOSING DATA?  
    }

Answer 1

Hi @Filippo ,

First, by default, if you are using the Submit Form method to call this handler method, it will wait for the async method execute, and then if you are using BindProperty and tag helper to bind the property, it will update the data in current page.

Besides, you can change the handler method and return the updated data, then try to use JQuery Ajax to call the handler method, then return the data to the view page and update the page. Refer to the following code:

.cshtml:

.cshtml.cs:

In the Program.cs file, configure the Antiforgery token.

builder.Services.AddAntiforgery(o => o.HeaderName = "XSRF-TOKEN");  

Then, the result as below:

In the Handler method, if you want to store the data, you can try to use session or database.

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Best regards,
Dillion