Question

Lets say I ve got an online dating site, users can filter the user list based on various criteria, Height, Age, BodyType, Ethnic Origin....

I want to pass the criteria to the pager, via QueryString. Height and Age are easy as these are ranges, and I would use

MinHeight=3&MaxHeight=12&MinAge=21&MaxAge=30

However other Criteria like BodyType and Ethnic orgins are Lists of ForeignKey values e.g:

Ethnitity:2,3,5

What is the best way to pass these as a QueryString? Should I convert it to a Json string eg:

www.site.com?filterjson={"minage":0,"maxage":0,"minheight":0,"maxheight":0,"bodytypelist":[1,2,3],"ethnicitylist":[2,3,4],"eyecolorlist":[],"haircolorlist":[],"orientationlist":[]}

Or is this not-valid/overkill/too complex?

Maybe something like this:

MinHeight=3&MaxHeight=12&bodytypes=1,2,3&

and parse the list values by splitting the , ?????

I don t know the ups and downs of all these ideas. So how would you pass a list of values in a querystring?

Answer 1

Using comma-separated values is the most pragmatic approach in my opinion. You can use this code to split values:

if (!string.IsNullOrEmpty(Request.QueryString["bodytypes"]))
{
   string[] rgs = Request.QueryString["bodytypes"].Split(new char[] {  ,  });
}

Answer 2

Both will work, though querystring is much easier to be hacked . However if you have it well protected from malicious/unexpected values, I say it s fine.

Consuming data via querystring is relatively more straightforward than from JSON.

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