Regular Expression Commas and Columns

I have an issue while parsing my Solr Queries that I pass on the querystring:

The values I end up having to work with look like this:

ed_deliveryMethod:Face to Face,ed_location:Alexandria,VA,ed_delivery:Onsite

I need a regex that would parse a key value pair:

• ed_deliveryM开发者_高级运维ethod:Face to Face
• ed_location:Alexandria,VA
• ed_delivery:Onsite

So I need a regex to parse

FacetName:FacetValue

I was doing a split by commas but the comma on the location is throwing things off.

The last comma is optional since there might be just one filter.

I did try a lot of things before asking this question but no success. I'm not good at regex as you can see.

((?<Facet>.+):(?<FacetValue>.+),)+

Try the following:

(?<Facet>\w+):(?<FacetValue>.+?)(?=,\w+:|$)

Maybe you need to adjust \w to contain all allowed charactes of your keys.

Use QueryString.GetValues(key), it returns an array of values.

E.g. if you have &filter=category:car&filter=category:motorcycle as you mentioned in a comment, and you call QueryString.GetValues("filter") you get an array with elements "category:car" and "category:motorcycle". Then split each element by :, etc. No regex needed.