SQL Server stored procedure expects parameter: error while calling from code

Question

I have written this stored procedure that accepts the clientId as parameter. As you can see in the SQL Server trace, I have passed the client id while calling from .NET, but still its showing the error that clientId parameter is not supplied. What am I doing wrong?

Stored procedure:

SQL Server trace when calling from .NET:

I'm still getting the error:

Procedure or function 'USP_LoadPerformaceTemplate' expects parameter '@clientId', which was not supplied.

Answer 1

In your C# code (which you haven't shown us), you have not set CommandType

command.CommandType = CommandType.StoredProcedure;
// or
using (var command = new ... { CommandType = CommandType.StoredProcedure})

So what is happening is that the SQL is being interpreted as a direct query batch:

[dbo].[USP_LoadPerformaceTemplate]

The word EXEC is not needed. So it is trying to execute it without the parameter.

But when CommandType.StoredProcedure is specified, it is sent as an RPC command to call the stored procedure.