---
title: "Data Annotations in C#"
url: https://daily.dev/posts/data-annotations-in-c--eicpkg4yk
source_url: https://mwaseemzakir.substack.com/p/data-annotations-in-c
type: article
source: "Waseem .NET Newsletter"
published: 2024-10-26T06:07:40.716Z
updated: 2024-12-09T10:41:43.030Z
tags: ["webdev", ".net", "c#"]
reading_time: 4
upvotes: 9
comments: 0
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Data Annotations in C#

**[Waseem .NET Newsletter](https://daily.dev/sources/mwaseemzakir)** · 4 min read · 9 upvotes · 0 comments

## Summary

Learn how to implement data annotations for data validation in C#. The post covers common validation attributes such as [Required], [StringLength], [Range], [RegularExpression], and more with code examples. Data annotations offer a simple way to ensure only valid data reaches your database and can also serve purposes like specifying display formats, primary keys, and foreign key relationships.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://mwaseemzakir.substack.com/p/data-annotations-in-c>

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---

Tags: [#webdev](https://daily.dev/tags/webdev), [#.net](https://daily.dev/tags/.net), [#c#](https://daily.dev/tags/c#)

[View this post on daily.dev](https://daily.dev/posts/data-annotations-in-c--eicpkg4yk)