I am after a visual query builder along the lines of http://ajax.easyquerydemo.com/. I am using ASP.NET but MVC so would rather something that is not WebForms based like the one
Activer query can do all the thing you want:
http://www.activequerybuilder.com/product.html
Try www.ajaxquerybuilder.com
Easy Query Builder supports MVC, they have a pretty slick MVC Demo, and a non-expiring trial.
Even i search for it today and created a list:
1) Query builder
http://aspquerybuilder.net/?_ga=2.150945718.1618902383.1522751533-1013206784.1522751533
price : https://www.activequerybuilder.com/purchase.html
2) Active query builder
Demo : https://webapi.activequerybuilder.com/Demo
Free to use.
3) Custom code
https://www.codeproject.com/Tips/1060170/User-Responsive-Web-Query-Builder-using-ASP-NET
4) DataSparc: Paid service
Demo : https://www.datasparc.com/dbhawk-online-demo/
5) Jquery query builder: Free to use.
Demo: http://querybuilder.js.org/demo.html
GitHub: https://github.com/mistic100/jQuery-QueryBuilder
6) DevExpress.com
Demo : https://demos.devexpress.com/ASPxGridViewDemos/DataBinding/QueryBuilder.aspx
Documentation: https://demos.devexpress.com/aspxgridviewdemos/DataBinding/QueryBuilderControl.aspx
We use DBHawk from Datasparc. It provides query builder and execution.
Was looking for the same sort of thing, came across this http://devtools.korzh.com/query-builder-component/ which looks very interesting to me...