从实体框架调用存储过程时出错

Question

I'm receiving the following error:

Procedure or function 'dsp_DeleteAgreementPackage' expects parameter '@AgreementPackageID', which was not supplied.

Here's my code:

var param1 = new SqlParameter();
param1.ParameterName = "@AgreementPackageID";
param1.SqlDbType = SqlDbType.Int;
param1.SqlValue = package.Id;
_context.Database.ExecuteSqlCommand("dsp_DeleteAgreementPackage", param1);

I've also tried replacing the last line with:

_context.Database.ExecuteSqlCommand("dsp_DeleteAgreementPackage", new object[] { param1 });

I get the same error both ways. I've verified that param1 does include the integer value and a parameter name of @AgreementPackageID . Any idea what I'm doing wrong?

Answer 1

I think you're not including any parameter inside provided SQL command string (the parameters are required instead of simply using stored procedure name). Try using ExecuteSqlCommand with given @AgreementPackageID parameter as given below:

_context.Database.ExecuteSqlCommand("EXEC dsp_DeleteAgreementPackage @AgreementPackageID", param1);

Also you can remove @ sign from ParameterName if necessary:

param1.ParameterName = "AgreementPackageID";

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