Retrieving a Return Value from a Stored Procedure : SqlConnection Stored Procedure « ADO.Net « C# / CSharp Tutorial

Home
C# / CSharp Tutorial
1.Language Basics
2.Data Type
3.Operator
4.Statement
5.String
6.struct
7.Class
8.Operator Overload
9.delegate
10.Attribute
11.Data Structure
12.Assembly
13.Date Time
14.Development
15.File Directory Stream
16.Preprocessing Directives
17.Regular Expression
18.Generic
19.Reflection
20.Thread
21.I18N Internationalization
22.LINQ
23.GUI Windows Forms
24.Windows Presentation Foundation
25.Windows Communication Foundation
26.Workflow
27.2D
28.Design Patterns
29.Windows
30.XML
31.XML LINQ
32.ADO.Net
33.Network
34.Directory Services
35.Security
36.unsafe
C# / C Sharp
C# / C Sharp by API
C# / CSharp Open Source
C# / CSharp Tutorial » ADO.Net » SqlConnection Stored Procedure 
32.15.8.Retrieving a Return Value from a Stored Procedure
/*
CREATE PROCEDURE Person.GetContacts
    @RowCount int OUTPUT
AS
    SET NOCOUNT ON
    SELECT * FROM Person.Contact
    SET @RowCount = @@ROWCOUNT
    RETURN @RowCount
*/


using System;
using System.Data;
using System.Data.SqlClient;

    class Program
    {
        static void Main(string[] args)
        {
            string sqlConnectString = "Data Source=(local);" +
                "Integrated security=SSPI;Initial Catalog=AdventureWorks;";

            using (SqlConnection connection = new SqlConnection(sqlConnectString))
            {
                SqlCommand command =new SqlCommand("Person.GetContacts", connection);
                command.CommandType = CommandType.StoredProcedure;
                command.Parameters.Add("@RowCount", SqlDbType.Int).Direction = ParameterDirection.Output;
                SqlParameter retParam = command.Parameters.Add("@RetVal", SqlDbType.Int);
                retParam.Direction = ParameterDirection.ReturnValue;

                connection.Open( );
                SqlDataReader dr = command.ExecuteReader( );
                Console.WriteLine("After execution, return value = {0}", retParam.Value);

                int rowCount = 0;
                while (dr.Read( )){
                    rowCount++;
                }
                dr.Close( );
                connection.Close( );
            }
        }
    }
32.15.SqlConnection Stored Procedure
32.15.1.Call a stored procedure
32.15.2.Call stored procedure with no parameter
32.15.3.Call stored procedure with parameter and return value
32.15.4.Call storedprocedure and pass in the parameter
32.15.5.Call stored procedure with parameters using SqlCommand
32.15.6.Call StoredProcedure with input and output parameters
32.15.7.Catch exception when calling stored procedure
32.15.8.Retrieving a Return Value from a Stored Procedure
32.15.9.Retrieving a Stored Procedure Output Parameter
32.15.10.Retrieving Data Using a SQL Server Stored Procedure
32.15.11.Retrieves stored procedure parameter information
32.15.12.Call stored procedure
32.15.13.Call stored procedure with SqlCommand
32.15.14.Raising and Handling Stored Procedure Errors
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.