CODEWITHSUNDEEP
c#sql-serverstored-proceduresado.netsqlhelper
Ali Soltani
Ali Soltani

Reputation: 9927

Pass object parameter to stored procedure by SqlHelper

I have a SQL table like this:

Table

ID is Identity column.

And I have a class for this table in ASP.Net project like this:

public class Topic
    {
        public int ModuleID { get; set; }
        public string Name { get; set; }
        public string BodyHTML { get; set; }
    }

Also I have a stored procedure:

ALTER PROCEDURE [dbo].[addTopic] 
    @Topic dbo.Topic READONLY
AS
BEGIN
    insert into OnlineHelp_Topic
    select * from @Topic
END

I want to pass a Topic object from project and execute this stored procedure by SqlHelper.

I read many post like this and create a User-Defind Table in SQL Server and I test this code:

Topic Topic = new Topic()
            {
                BodyHTML = "test body",
                ModuleID = 1000,
                Name = "test"
            };
string constr = ConfigurationManager.ConnectionStrings["testConnection"].ConnectionString;
int rowsAffected = SqlHelper.ExecuteNonQuery(constr, "addTopic", new SqlParameter("@Topic", Topic));

But this code has error in SqlHelper.ExecuteNonQuery(...) like this;

Error

It would be very helpful if someone could explain solution for this problem.

Upvotes: 2

Views: 5730

Answers (2)

Javier
Javier

Reputation: 1

You need to pass a DataTable as parameter example

SqlHelper.ExecuteNonQuery(constr, "addTopic", new SqlParameter("@Topic", TopicDatatable));

The DataTable must have the same columns: names and datatypes of the User Defined Table Type.

Upvotes: 0

Mahdi
Mahdi

Reputation: 3349

Try to pass the topic parameters like follows:

List<SqlParameter> parameters = new List<SqlParameter>();
parameters.Add(new SqlParameter("@ModuleID ", topic.ModuleID ));
parameters.Add(new SqlParameter("@Name", topic.Name));
parameters.Add(new SqlParameter("@BodyHTML", topic.BodyHTML));
int rowsAffected = SqlHelper.ExecuteNonQuery(constr, "addTopic", parameters.ToArray());

You will also need to modify your stored procedure.

Upvotes: 1

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