How to bind a Dictionary from URL query, based on parameter name prefix?

Question

I need to handle http://host.my/path?normal=1&othernormal=2&dict_a=b&dict_x=y

Here's my latest attempt at it, based off How to use Bind Prefix? :

public string Get(int normal, int othernormal,
    [Bind(Prefix="dict_")]
    Dictionary<string, string> dict) { ... }

That creates a dictionary, however, it is empty.

It is important to note, that dict_a, and dict_x are not known in advance. E.g. dict_abracadabra=bla must be allowed.

You would need the url to be `...&dict[0].Key=b&dict[0].Value=y` to bind to your parameter (without the `[Bind(Prefix="dit_")]` Why not just parameters `string dict_a, string dict_x` and create the dictionary from the values? — , Nov 07 '16 at 02:59
@StephenMuecke, because I do not control the client. My question actually has the answer to your second question. — LOST, Nov 07 '16 at 03:50
The you going to need to just read the values from the query string (or create a custom model binder to do it) and create the dictionary from the values. — , Nov 07 '16 at 03:52

score 1 · Answer 1 · answered Nov 16 '16 at 02:35

You're able to bind these values to a dictionary without a bind prefix. A dictionary will consume any simple values in the querystring.

Your sample query and method signature (without the bind prefix), and it seems to work pretty much as expected:

I've tested this in MVC 1.1.0-preview1-final.

1 Answers1