How to pass list of string to stored procedure - asp.net

Question

public DataSet ViewQuizDetails(List<string> name)
{
DataSet dsGrades = null;
var dbCon = new DBConnection("Quiz");
foreach(string val in name)
{
dbCon.AddParameter("#name", val);
dsGrades = dbCon.Execute_DataSet("spViewQuizDetails", null);
}
return dsGrades;
}
ALTER PROCEDURE [dbo].[spViewQuizDetails]
-- Add the parameters for the stored procedure here
#name varchar(30)
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Insert statements for procedure here
--SELECT * FROM QuizDetails INNER JOIN Elearning
--ON QuizDetails.ElearningId=Elearning.ElearningId ;
SELECT *
FROM QuizDetails INNER JOIN Elearning
ON QuizDetails.ElearningId=Elearning.ElearningId where ElearningName=#name
END
When I pass multiple values I'm getting the following error.
Error received: Procedure or function spViewQuizDetails has too many arguments
specified.

Answer 1

Pass your stored procedure a parameter with names concatinated .
Build this concatinated name string in your C# code
Declare #Name VARCHAR(1000) = 'Name1,Name2,Name3';
ALTER PROCEDURE [dbo].[spViewQuizDetails]
-- Add the parameters for the stored procedure here
#name VARCHAR(1000)
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
DECLARE #xml xml;
set #xml = N'<root><r>' + replace(#name,',','</r><r>') + '</r></root>'
-- Insert statements for procedure here
--SELECT * FROM QuizDetails INNER JOIN Elearning ON QuizDetails.ElearningId=Elearning.ElearningId ;
SELECT * FROM QuizDetails
INNER JOIN Elearning
ON QuizDetails.ElearningId = Elearning.ElearningId
where ElearningName IN (select t.value('.','varchar(max)')
from #xml.nodes('//root/r') as a(t) )
END