C# and SQL Server - using a stored procedure

Question

I have three columns

Fraquence int   
[Prochain étalonnag] date    
[date étalonnage] type:date 

In Visual Studio, I have a form for adding a new (etalonnage) to my table the user inputs two vules ( Fraquence and date étalonnage ).

I want to do this with a stored procedure in SQL Server :

Prochain étalonnag = date étalonnage + (Month Fraquence).  

The column Prochain étalonnage will be filled automatically when the user click in button Add .

Answer 1

Please check following .NET code, sorry it is in VB.NET But it is not a problem to convert it to C#

The stored procedure in database is named prAddRow for this sample It accepts two parameters @p_int and @p_date

Dim sqlConnBuilder As New SqlConnectionStringBuilder()
sqlConnBuilder.DataSource = txtSQLServer.Text
sqlConnBuilder.InitialCatalog = txtDatabase.Text
sqlConnBuilder.IntegratedSecurity = True

conn = New SqlConnection(sqlConnBuilder.ToString)

Dim cmd As New SqlCommand("prAddRow")
cmd.CommandType = CommandType.StoredProcedure
cmd.Parameters.Add("@p_int", SqlDbType.Int).Value = 1
cmd.Parameters.Add("@p_date", SqlDbType.Date).Value = Date.Now.Date

conn.Open()
cmd.Connection = conn
Dim numberOfAffectedRows As Integer = cmd.ExecuteNonQuery()
conn.Close()

The T-SQL source codes for the sample stored procedure is as follows

create procedure prAddRow(
    @p_int int,
    @p_date date
)
as
insert into etalonnage (Fraquence , [date etalonnage] ) values (@p_int, @p_date)
go

Note: I renamed stored procedure according to marc's note from sp_addRow to prAddRow

I hope it is useful for you

Answer 2

 private void button1_Click(object sender, EventArgs e)
    {
        cmd = new SqlCommand("INSERTNEW", connection);
        cmd.CommandType = CommandType.StoredProcedure;
        SqlParameter [] par = new SqlParameter[4];
        par[0] = new SqlParameter("@COD", SqlDbType.VarChar, 50);
        par[0].Value = textBox1.Text;
        par[1] = new SqlParameter("@FERQ", SqlDbType.Int);
        par[1].Value = numericUpDown1.TextAlign;
        par[2] = new SqlParameter("@DATE_ET", SqlDbType.Date);
        par[2].Value = dateTimePicker1.Text;
        par[3] = new SqlParameter("@DATE_PROC", SqlDbType.Date);
        DateTime d1 = Convert.ToDateTime(dateTimePicker1.Text);
        int k =Convert.ToInt32(numericUpDown1.TextAlign);
        string r = d1.AddMonths(k).ToShortDateString();
        par[3].Value = r ;
        cmd.Parameters.AddRange(par);
        connection.Open();
        cmd.ExecuteNonQuery();
        connection.Close();
        MessageBox.Show("good add");
    }

this is work thanks all