Data Annotations and ModelState
Put validation rules on the model with data annotations such as [Required], [StringLength] and [Range]; check ModelState.IsValid in the action; add your own errors with AddModelError; and show the messages with validation tag helpers.
Updated
- Category
- ASP.NET Core
- Level
- Journeyman
- Tags
- aspnet-core, c-sharp, Data Annotations, Model Validation, ModelState, Validation Tag Helpers