Passing uniqueidentifier parameter to Stored Procedure

问题

I am trying to pass a uniqueidentifier parameter to a stored procedure using the following code:

myCommand.Parameters.Add("@BlogID", SqlDbType.UniqueIdentifier).Value = "96d5b379-7e1d-4dac-a6ba-1e50db561b04";

I keep getting an error however saying that the program was unable to convert from string to GUID. Am I passing the value incorrectly?

回答1:

Try this

myCommand.Parameters.Add("@BlogID", SqlDbType.UniqueIdentifier).Value = new Guid("96d5b379-7e1d-4dac-a6ba-1e50db561b04");

回答2:

A unique identifier is a GUID. so it's a different object type to your string.

You need

myCommand.Parameters.Add("@BlogID", SqlDbType.UniqueIdentifier).Value = 
                                        new Guid("96d5b379-7e1d-4dac-a6ba-1e50db561b04");

来源：https://stackoverflow.com/questions/11724614/passing-uniqueidentifier-parameter-to-stored-procedure