DateTime Properties in Code-First Entity Framework and SQL Server | Guide

├Źndice
  1. Introduction
  2. DateTime Properties in Code-First Entity Framework
  3. Mapping DateTime Properties to SQL Server
  4. Conclusion

Introduction

When working with Code-First Entity Framework and SQL Server, understanding how to handle DateTime properties is important. In this guide, we will cover the basics of working with DateTime properties in Code-First Entity Framework and SQL Server.

DateTime Properties in Code-First Entity Framework

When creating a model class in Code-First Entity Framework, you can define a DateTime property like this:

public class MyModel
{
    public int Id { get; set; }
    public string Name { get; set; }
    public DateTime Date { get; set; }
}

By default, Code-First Entity Framework will map the DateTime property to a datetime2 column in SQL Server.

Mapping DateTime Properties to SQL Server

When mapping DateTime properties to SQL Server, there are a few things to keep in mind.

First, the precision of the datetime2 column is determined by the DateTime property in your model class. If your model class DateTime property has a precision of 7, the datetime2 column in SQL Server will also have a precision of 7.

Second, you can specify the default value for a DateTime property in SQL Server by using the [DatabaseGenerated] attribute in your model class. For example:

public class MyModel
{
    public int Id { get; set; }
    public string Name { get; set; }
    [DatabaseGenerated(DatabaseGeneratedOption.Computed)]
    public DateTime Date { get; set; }
}

This will set the default value of the Date property to the current date and time in SQL Server.

Conclusion

In conclusion, when working with Code-First Entity Framework and SQL Server, it is important to understand how to handle DateTime properties. By default, Code-First Entity Framework will map DateTime properties to datetime2 columns in SQL Server. You can specify the precision of the datetime2 column and the default value for a DateTime property in SQL Server using attributes in your model class.

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