Custom grid filter operator problem

[Andrew]

Hi,

I’m getting some unexpected query parameters passed back to the server when redefining some of the grid’s filter operators.

For example, if I customize the filter operators with the following:

filterable: {
      operators: {
        string: {
          "Contains": "Contains",
          "DoesNotContain": "Does not contain",
          "Equals": "Is equal to",
          "DoesNotEqual": "Is not equal to",
          "StartsWith": "Starts with",
          "EndsWith": "Ends with"
        }
      }
    },

I would then expect one of the query parameters to be the following when using the “Equals” operator.

filter[filters][0][operator]=Equals

However, instead it sends the standard equals operator:

filter[filters][0][operator]=eq

The behaviour is as I’d expect for the other operators. e.g.

filter[filters][0][operator]=StartsWith

I only experience the problem with the equals, greater than and less than operators.

Here is a jsfiddle demonstrating the problem. Of course the filters don’t actually work as the server side code doesn't support the custom operators. You need to look at the requests sent to the server to see the problem.

https://jsfiddle.net/snowman611/6mnzbc1e/3/

Has anyone else had this problem? What am I doing wrong?

Thanks,

Andrew

[Vladimir Iliev]

Hi Andrew,

The described setup is not supported and the behavior that you observe for operators other than "equal to" is a side effect. Could you please provide more information about where did you find the mentioned example? I would suggest to check the Grid API for the available "operators.string" options and update your project accordingly (these options are case sensitive):

• Filterable: operators.string

Regards,
Vladimir Iliev
Telerik

 

 

[Andrew]

Thanks Vladimir. I have updated my code accordingly as suggested.

I'm afraid I originally wrote the affected code well over a year ago, and had a workaround in place. I have only just got around to investigating the inconsistency. I can't recall whether I saw an example or whether I just came up with the code by trial and error.

Thanks for your help.

Andrew