What is ModelState in ASP.NET?
ModelState in ASP.NET is a dictionary that holds the state of model binding and validation results.
How can I check if the ModelState is valid?
You can check if the ModelState is valid by using the ModelState.IsValid
property in your controller action.
What should I do if ModelState is not valid?
If ModelState is not valid, you should return the view with the current model to display validation errors.
Can I customize the validation messages?
Yes, you can customize validation messages by using data annotations or by implementing custom validation attributes.
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