How to get query string parameter value in asp.net core? [duplicate]

Question

I'm trying to get a query string value using:

_httpContextAccessor.HttpContext.Request.QueryString["data"]

but it fails with error:

Cannot apply indexing with [] to an expression of type 'QueryString'

QueryString is from the Microsoft.AspNetCore.Http namespace.

haim770 · Accepted Answer · 2019-06-06 10:29:45Z

10

Generally, you should rely on model-binding to access incoming values, not read them explicitly from a certain request source.

However, the correct way to read query-string values is through Request.Query instead. And in your case:

_httpContextAccessor.HttpContext.Request.Query["data"]

answered Jun 6, 2019 at 10:29

haim770

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2 Comments

_httpContextAccessor.HttpContext.Request.Query["data"][0]

Model-Binding is the ticket, glad you made that point.