操作数类型冲突：int与utblProgramAllotment [用户定义的表类型]不兼容

Question

My C# code:

var Message = new SqlParameter("Message", SqlDbType.VarChar, 8000);

Message.Direction = ParameterDirection.Output;

var UserId = new SqlParameter("UserId ", SqlDbType.BigInt);
UserId.Value = Convert.ToInt64(System.Web.HttpContext.Current.Session["UserIDKey"]);

var utblProgramAllotment = new SqlParameter("utblProgramAllotment", SqlDbType.Structured);
utblProgramAllotment.Value = dtProgrammeAllotments;
utblProgramAllotment.TypeName = "dbo.utblProgramAllotment";

try
{
    db.Database.ExecuteSqlCommand(
         "exec uspInsertUpdateProgrammeAllotment    @UserId , @utblProgramAllotment, @Message OUTPUT",
         UserId, utblProgramAllotment, Message);
}
catch (Exception ex)
{
    vm.Message = ex.Message.ToString();
    Errorlog.WriteErrorlog(ex, "Programme Allotment", "");

and my procedure accepts:

ALTER PROCEDURE   [dbo].[uspInsertUpdateProgrammeAllotment] 
(      
    @utblProgramAllotment AS utblProgramAllotment READONLY,
    @UserId Bigint,
   @Message VARCHAR(8000) OUTPUT    
)

And the user defined table type is

CREATE TYPE [dbo].[utblProgramAllotment] AS TABLE(
    [ProgrammeScheduleIDKey] [bigint] NOT NULL,
    [ProposalDetailsIDKey] [bigint] NOT NULL,
    [SanctionOrderIDKey] [bigint] NOT NULL,
    [ProgrammeIDKey] [bigint] NOT NULL,
    [EmployeeIDKey] [bigint] NOT NULL,
    [DistrictIDKey] [bigint] NOT NULL,
    [TargetGroupIDKey] [bigint] NOT NULL,
    [ProgrammeTitleIDKey] [bigint] NOT NULL,
    [ProgramMode] [varchar](3) NOT NULL,
    [ProgrammeDescription] [varchar](500) NOT NULL,
    [ScheduleStartDateDt] [datetime] NULL,
    [ApprovalDt] [datetime] NOT NULL,
    [ScheduleEndDateDt] [datetime] NULL,
    [ProgrammeVenue] [varchar](250) NOT NULL,
    [NoofParticipants] [bigint] NOT NULL,
    [Remarks] [varchar](500) NOT NULL,
    [AccountsRemarks] [varchar](250) NOT NULL,
    [ExamDateDt] [datetime] NULL,
    [ProgrammeTitle] [varchar](250) NOT NULL,
    [DeletedFlg] [bit] NOT NULL
)

I am sending a data table to a sql stored procedure. When I try to pass this data table from my c# it shows an exception as operand type clash: int is incompatible with utblProgramAllotment this is user defined table type

Answer 1

If you're going to pass a request to execute a stored procedure across as ad-hoc text rather than specifically as a stored procedure execution, then the parameter order should match:

exec uspInsertUpdateProgrammeAllotment @utblProgramAllotment, @UserId ,
                   @Message OUTPUT

Or you should name the parameters:

exec uspInsertUpdateProgrammeAllotment @UserId = @UserId ,
                   @utblProgramAllotment = @utblProgramAllotment,
                   @Message = @Message OUTPUT

See EXECUTE :

When used with the @parameter_name=value form , parameter names and constants do not have to be supplied in the order in which they are defined in the module. However, if the @parameter_name=value form is used for any parameter, it must be used for all subsequent parameters.

and,

If parameter names are not specified, parameter values must be supplied in the order defined in the module.