Blazor TextBox - Form Validation
This example is used to validate form using the Data Annotation. Type the value in the input element. If the input value is valid, then the given input will be ready to submit. Otherwise, an error message will be shown until you enter the valid value.
The form enables the validation with data annotation attributes by clicking on the submit externally. All rules are validated by the DataAnnotationsValidator.
The above name field is configured with the following rules.
| Field | Rule |
|---|---|
| Required | The field must have a valid value. |
| MinLength | The field must have more than 3 characters in length. |
| MaxLength | The field should not have more than 10 characters in length. |
The above address field is configured with the following rule.
| Field | Rule |
|---|---|
| Required | The field must have a valid value. |