FORMLY GuidesUIExamples
GitHub Guides keyboard_arrow_right UI keyboard_arrow_right Examples keyboard_arrow_down Intro Introduction Example Field Options Expression Properties Default Value Hide Fields modelOptions Form Options Reset Model Form State Validation Options Built-in validations Custom validation Custom Validation parameters Validation message Async validation of unique value Async validation and `updateOn` Matching Two Fields Force showing error state Toggle required field Disable submit button Bootstrap Formly Table Rows Select Bootstrap Specific Advanced Layout Bootstrap Horizontal Input add-ons Advanced i18n ngx-translate i18n ngx-translate (alternative approach) Json schema Repeating Section Repeating Section With Length Input Multi-Step Form Tabs Form ag-grid Integration ngx-datatable Integration Other Cascaded Select (using observable) Cascaded Select JSON powered Bind Observable to Select Advanced Layout (Flex) Nested Forms (fieldGroup wrapper) Material Field Prefix/Suffix Hide Fields with `@angular/animations` Button Type JSON powered File input
Custom validation
This demonstrates the different ways to define a custom validation, globally or for a specific field.