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Learn about data validation and form handling in Blazor. Explore Blazor's built-in validation features, custom validation techniques, and best practices for effective form handling. By the end of the article, you will have the knowledge to handle data validation seamlessly in your Blazor application.

Data Validation and Form Handling with Blazor

Pro tips : the ErrorMessage property of Validation attributes support the string format and can be mixed with the DisplayAttribute, it can be useful for generic validation.
For exemple you can define
<pre><code>[Display(Name = &quot;My Property&quot;)]
[StringLength(20, ErrorMessage = &quot;field {0} max length is {1}&quot;)]
String MyProperty { get; set; }
</code></pre>
And the validation will show “field My Property max length is 20”.