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如何在不删除数据库的情况下更改模型？

[英]How can I change the model without having to delete the database?

原文 2012-11-05 17:59:12 8 2 c#/ asp.net-mvc-3/ visual-studio-2010

If I make any change in the model, now I have to delete and recreate the database. 如果我在模型中进行任何更改，现在我必须删除并重新创建数据库。 What do I resolve? 我该怎么解决？

2 个解决方案

Make changes in database manually. 手动更改数据库。 Make sure you have Prevent saving changes that require table re-creation unchecked in Options under Designers in SQL Server Management Studio 确保在SQL Server Management Studio中的“设计器”下的“选项”下取消选中Prevent saving changes that require table re-creation

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You will need to make the alterations to the database manually. 您需要手动更改数据库。

There are automated tools to help you with reflection such as http://visualstudiogallery.msdn.microsoft.com/df3541c3-d833-4b65-b942-989e7ec74c87 or http://www.huagati.com/dbmltools/ 有一些自动化工具可以帮助您进行反思，例如http://visualstudiogallery.msdn.microsoft.com/df3541c3-d833-4b65-b942-989e7ec74c87或http://www.huagati.com/dbmltools/

如何在不访问原始项目的情况下删除项目？ - How can I delete a project without having access to the original project?

在.NET Web应用程序中，如何在无需托管自己的SQL数据库的情况下实现成员资格？ - In a .NET web app, how can I implement Membership without having to host my own SQL database?

如何在不更改路由的情况下将参数从视图传递到控制器 - How can I pass a parameter from a view to a controller without having to change the routing

我可以在不更改模型的情况下触发重新种子吗？ - Can I trigger a re-seed without a model change?

如何在数据库中使用 model 这个 class？ - How can I model this class in a database?

是否可以从Server Explorer将SQL视图导入模型中而不必自己编写类？ - Can I import a SQL View from Server Explorer into my Model without having to write the class myself?

我如何在DataContext中更改数据库名称 - How I can change the database name in DataContext

如何使用LINQ-to-SQL更新表而不必删除所有现有记录？ - How do I update a table with LINQ-to-SQL without having to delete all the existing records?

更新实体数据模型时，如何在不更改的情况下继续在类中使用 System.ComponentModel.DataAnnotations？ - How can I keep using System.ComponentModel.DataAnnotations in class without change when updata Entity data model?

如何在 Mvc 核心中回滚对数据库的插入或删除 - How can I roll back insert or delete on database in Mvc core

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相关问题 如何在不访问原始项目的情况下删除项目？ - How can I delete a project without having access to the original project? 在.NET Web应用程序中，如何在无需托管自己的SQL数据库的情况下实现成员资格？ - In a .NET web app, how can I implement Membership without having to host my own SQL database? 如何在不更改路由的情况下将参数从视图传递到控制器 - How can I pass a parameter from a view to a controller without having to change the routing 我可以在不更改模型的情况下触发重新种子吗？ - Can I trigger a re-seed without a model change? 如何在数据库中使用 model 这个 class？ - How can I model this class in a database? 是否可以从Server Explorer将SQL视图导入模型中而不必自己编写类？ - Can I import a SQL View from Server Explorer into my Model without having to write the class myself? 我如何在DataContext中更改数据库名称 - How I can change the database name in DataContext 如何使用LINQ-to-SQL更新表而不必删除所有现有记录？ - How do I update a table with LINQ-to-SQL without having to delete all the existing records? 更新实体数据模型时，如何在不更改的情况下继续在类中使用 System.ComponentModel.DataAnnotations？ - How can I keep using System.ComponentModel.DataAnnotations in class without change when updata Entity data model? 如何在 Mvc 核心中回滚对数据库的插入或删除 - How can I roll back insert or delete on database in Mvc core

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