---
title: "What’s the .NET datatype that allows the retrieval of data by a unique key?"  
description: "What’s the .NET datatype that allows the retrieval of data by a unique key?"  
author: "Uttam Misra"  
published: 2011-04-23  
updated: 2020-09-19  
canonical: https://www.mindstick.com/interview/768/what-s-the-dot-net-datatype-that-allows-the-retrieval-of-data-by-a-unique-key  
category: "c#"  
tags: ["c#"]  
reading_time: 1 minute  

---

# What’s the .NET datatype that allows the retrieval of data by a unique key?

HashTable

## Answers

### Answer by Uttam Misra

HashTable


---

Original Source: https://www.mindstick.com/interview/768/what-s-the-dot-net-datatype-that-allows-the-retrieval-of-data-by-a-unique-key

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