无法检测到以下存储过程的返回类型 [英] The return types for the following stored procedures could not be detected

问题描述

将存储过程拖放到dbml文件中时，出现此错误:

While drag-drop a stored procedure in dbml file I get this error:

未知返回类型
无法检测到以下存储过程的返回类型.在属性"窗口中为每个存储过程设置返回类型.

Unknown Return Type
The return types for the following stored procedures could not be detected. Set the return type for each stored procedure in the Properties window.

如何解决此错误?

推荐答案

每当设计人员无法确定SP的返回类型时，就会发生此问题.
此处
如何使用

This problem occurs whenever the designer cannot figure out the return type of the SP.
Same problem and solutions described here
How to get multiple result set of procedure using LINQ to SQL

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