Error:procedure and function expect parameter'@regdate', was not supplied.

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Procedure or Function expects parameter '@Regdate'(datatpe-datetime),which was not supply

What I have tried:

ALTER PROCEDURE [dbo].[sp_InsertLabreg] 
(
@patfor varchar(100)= null ,
        @LABID varchar(100)=null,
        @pattypr varchar(100)= null ,
        @Regdate datetime,

)

AS
BEGIN

INSERT INTO labreg
	(   patfor,
		LABID,
        pattypr,
        Regdate)

)

INSERT INTO labreg
	(   patfor,
		LABID,
        pattypr,
        Regdate) End

Posted 19-Apr-19 21:18pm

Member 14207397

Updated 27-Feb-20 3:06am

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Richard MacCutchan 20-Apr-19 4:09am

As the message states ...

2 solutions

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OriginalGriff · Accepted Answer · 2019-04-19T22:38:00

Look at the code where you call the procedure: your first three parameters are marked as defaulting to NULL, which means if you don't provide a value, it defaults OK.
But @Regdate has no default, which means that if you don't supply it you will get an error.
You could add "= NULL" to the defintion, but ... that allows you to send completely blank rows to your DB ... which probably isn't a good idea.

MadMyche · Accepted Answer · 2019-04-20T09:58:00

The two most common issues in calling an SP from C# are:

The first is not passing in required parameters, as OriginalGriff states in the other answer.

The second is failing to set the SqlCommand.CommandType in which case it will default to Text.

C#

using (SqlConnection conn = new SqlConnection(connectionString)) {
  using (SqlCommand cmd = new SqlCommand({ProcedureName}, conn)) {
    cmd.CommandType = CommandType.StoredProcedure;
    cmd.Parameters.AddWithValue("@ParameterName", ParameterValue);
    // and so on
   }
}

SqlCommand.CommandType Property (System.Data.SqlClient) | Microsoft Docs[^]

Error:procedure and function expect parameter'@regdate', was not supplied.

2 solutions

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