在存储过程更新的情况下，应该从.dbml文件中删除它，然后重新插入它。但是如果存储过程有两条路径(例如:if something;显示一些列;否则显示一些其他列)，确保两个路径有相同的列别名!!否则只有第一个路径列存在。

我建议使用VS2008内置的可视化设计器，因为更新dbml也会更新为您生成的代码。在可视化设计器之外修改dbml将导致底层代码不同步。

We use a custom written T4 template that dynamically queries the information_schema model for each table in all of our .DBML files, and then overwrites parts of the .DBML file with fresh schema info from the database. I highly recommend implementing a solution like this - it has saved me oodles of time, and unlike deleting and re-adding your tables to your model you get to keep your associations. With this solution, you'll get compile-time errors when your schema changes. You want to make sure that you're using a version control system though, because diffing is really handy. This is a great solution that works well if you're developing with a DB schema first approach. Of course, I can't share my company's code so you're on your own for writing this yourself. But if you know some Linq-to-XML and can go to school on this project, you can get to where you want to be.

使用Visual Studio 2019在图形设计器中打开DBML文件更新DBML文件。

不工作时:https://developercommunity.visualstudio.com/t/dbml-files-not-opening-in-graphic-designer-in-vs-2/1659675

只是为了记录

在存储过程更新的情况下，应该从.dbml文件中删除它，然后重新插入它。但是如果存储过程有两条路径(例如:if something;显示一些列;否则显示一些其他列)，确保两个路径有相同的列别名!!否则只有第一个路径列存在。

更新表和更新DBML之间有细微差别…如果对现有表进行了更改，外键关系并不总是立即引入。解决方法是构建项目，然后重新添加表。我向微软报告了这个问题，在VS2010中得到了修复。

DBML显示不显示新的外键约束

请注意，主答案中给出的说明并不清楚。更新表

打开dbml设计面 选择所有带“右”的表->单击->选择全部或CTRLa CTRLx(削减) CTRLv(粘贴) 保存并重新构建解决方案。