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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Validation as a custom function","articleBody":"Hi !\n\nOnce more - thank you for such a great framework!\n\nIs it possible to add a validation of field via custom function?\nIn my case i want to validate if the value is in some range based other field value (e.g. apartment number based on selected house)\n\nsomethink like\n\n```js\ncolumns: [\n        {\n            name: 'flat',\n            type: AdminForthDataTypes.STRING,\n            validation: [\n                {\n                    function: function (value, record) {\n                        return {ok: false}\n                    },\n                    message: 'callback error',\n                },\n            ],\n\n        }\n        ...\n]\n```\n\nOr other case - make enum array dynamically updated based on connected field (but i think this one is harder to implement)\n\n","author":{"url":"https://github.com/TrilipuT","@type":"Person","name":"TrilipuT"},"datePublished":"2026-01-08T21:32:50.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/444/adminforth/issues/444"}